{ "instance": { "ccmp-20200930.htm": { "axisCustom": 0, "axisStandard": 39, "contextCount": 361, "dts": { "calculationLink": { "local": [ "ccmp-20200930_cal.xml" ] }, "definitionLink": { "local": [ "ccmp-20200930_def.xml" ], "remote": [ "http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-eedm-def-2020-01-31.xml", "http://xbrl.fasb.org/srt/2020/elts/srt-eedm1-def-2020-01-31.xml" ] }, "inline": { "local": [ "ccmp-20200930.htm" ] }, "labelLink": { "local": [ "ccmp-20200930_lab.xml" ], "remote": [ "http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-doc-2020-01-31.xml", "https://xbrl.sec.gov/dei/2020/dei-doc-2020-01-31.xml", "http://xbrl.fasb.org/srt/2020/elts/srt-doc-2020-01-31.xml" ] }, "presentationLink": { "local": [ "ccmp-20200930_pre.xml" ] }, "referenceLink": { "remote": [ "https://xbrl.sec.gov/dei/2020/dei-ref-2020-01-31.xml", "http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-ref-2020-01-31.xml", "http://xbrl.fasb.org/srt/2020/elts/srt-ref-2020-01-31.xml" ] }, "schema": { "local": [ "ccmp-20200930.xsd" ], "remote": [ "http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd", "http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd", "http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd", "http://www.xbrl.org/2003/xl-2003-12-31.xsd", "http://www.xbrl.org/2003/xlink-2003-12-31.xsd", "http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd", "http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd", "http://www.xbrl.org/2005/xbrldt-2005.xsd", "http://www.xbrl.org/2006/ref-2006-02-27.xsd", "http://xbrl.fasb.org/srt/2020/elts/srt-types-2020-01-31.xsd", "http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd", "http://xbrl.fasb.org/us-gaap/2020/elts/us-roles-2020-01-31.xsd", "http://xbrl.fasb.org/srt/2020/elts/srt-roles-2020-01-31.xsd", "https://xbrl.sec.gov/country/2020/country-2020-01-31.xsd", "http://xbrl.fasb.org/us-gaap/2020/elts/us-types-2020-01-31.xsd", "https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd", "http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd", "http://www.xbrl.org/lrr/role/net-2009-12-16.xsd", "http://www.xbrl.org/lrr/role/reference-2009-12-16.xsd", "http://xbrl.fasb.org/us-gaap/2020/elts/us-parts-codification-2020-01-31.xsd", "http://www.xbrl.org/lrr/role/deprecated-2009-12-16.xsd" ] } }, "elementCount": 849, "entityCount": 1, "hidden": { "http://fasb.org/us-gaap/2020-01-31": 10, "http://xbrl.sec.gov/dei/2020-01-31": 5, "total": 15 }, "keyCustom": 35, "keyStandard": 539, "memberCustom": 36, "memberStandard": 75, "nsprefix": "ccmp", "nsuri": "http://cabotcmp.com/20200930", "report": { "R1": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "dei:DocumentType", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "true", "longName": "000010001 - Document - Cover Page", "role": "http://cabotcmp.com/role/CoverPage", "shortName": "Cover Page", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "dei:DocumentType", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R10": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SignificantAccountingPoliciesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "210031002 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES", "role": "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIES", "shortName": "SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SignificantAccountingPoliciesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R100": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfNonvestedShareActivityTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i962c46528b4b4e0791dfabe0d500f1f6_I20190930", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber", "reportCount": 1, "unitRef": "shares", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240784044 - Disclosure - SHARE-BASED COMPENSATION PLANS - Restricted Stock and Restricted Stock Units (Details)", "role": "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSRestrictedStockandRestrictedStockUnitsDetails", "shortName": "SHARE-BASED COMPENSATION PLANS - Restricted Stock and Restricted Stock Units (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfNonvestedShareActivityTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i9edb91e57eaa45e49692c7b69e1bf8a6_D20191001-20200930", "decimals": "INF", "lang": "en-US", "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod", "reportCount": 1, "unique": true, "unitRef": "shares", "xsiNil": "false" } }, "R101": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfShareBasedCompensationActivityTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240794045 - Disclosure - SHARE-BASED COMPENSATION PLANS - Share-Based Compensation Expense (Details)", "role": "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSShareBasedCompensationExpenseDetails", "shortName": "SHARE-BASED COMPENSATION PLANS - Share-Based Compensation Expense (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfShareBasedCompensationActivityTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R102": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfShareBasedCompensationActivityTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i57deaf673d9b447bbb22c08df5ec05a6_D20191001-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:AllocatedShareBasedCompensationExpense", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240804046 - Disclosure - SHARE-BASED COMPENSATION PLANS - Schedule of Total Gross Share-based Compensation Expense (Details)", "role": "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSScheduleofTotalGrossSharebasedCompensationExpenseDetails", "shortName": "SHARE-BASED COMPENSATION PLANS - Schedule of Total Gross Share-based Compensation Expense (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfShareBasedCompensationActivityTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i57deaf673d9b447bbb22c08df5ec05a6_D20191001-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:AllocatedShareBasedCompensationExpense", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R103": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:DefinedBenefitPlanServiceCost", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240834047 - Disclosure - EMPLOYEE RETIREMENT PLANS - Narrative (Details)", "role": "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSNarrativeDetails", "shortName": "EMPLOYEE RETIREMENT PLANS - Narrative (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:DefinedBenefitPlanServiceCost", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R104": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "ix:continuation", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ibbffbddf073c4a5bbdb5b206bd74b585_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240844048 - Disclosure - EMPLOYEE RETIREMENT PLANS - Purchase Obligations in Foreign Jurisdictions (Details)", "role": "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSPurchaseObligationsinForeignJurisdictionsDetails", "shortName": "EMPLOYEE RETIREMENT PLANS - Purchase Obligations in Foreign Jurisdictions (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "ix:continuation", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ibbffbddf073c4a5bbdb5b206bd74b585_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R105": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "ix:continuation", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie1392ed6de2b48bca6ce63be130986e0_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240854049 - Disclosure - EMPLOYEE RETIREMENT PLANS - Schedule of Future Benefit Payments (Details)", "role": "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSScheduleofFutureBenefitPaymentsDetails", "shortName": "EMPLOYEE RETIREMENT PLANS - Schedule of Future Benefit Payments (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "ix:continuation", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie1392ed6de2b48bca6ce63be130986e0_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R106": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240884050 - Disclosure - INCOME TAXES - Income Before Income Taxes and Taxes on Income (Details)", "role": "http://cabotcmp.com/role/INCOMETAXESIncomeBeforeIncomeTaxesandTaxesonIncomeDetails", "shortName": "INCOME TAXES - Income Before Income Taxes and Taxes on Income (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R107": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ieeaaf059ee07406bbb2d6d64a971173f_D20180101-20180101", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate", "reportCount": 1, "unique": true, "unitRef": "number", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240894051 - Disclosure - INCOME TAXES - Provision for Income Taxes (Details)", "role": "http://cabotcmp.com/role/INCOMETAXESProvisionforIncomeTaxesDetails", "shortName": "INCOME TAXES - Provision for Income Taxes (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ieeaaf059ee07406bbb2d6d64a971173f_D20180101-20180101", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate", "reportCount": 1, "unique": true, "unitRef": "number", "xsiNil": "false" } }, "R108": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:SummaryOfIncomeTaxContingenciesTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ia6d135796fda4df3ad1098e4f8af6012_I20190930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:UnrecognizedTaxBenefits", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240904052 - Disclosure - INCOME TAXES - Changes in the Gross Unrecognized Tax benefits (Details)", "role": "http://cabotcmp.com/role/INCOMETAXESChangesintheGrossUnrecognizedTaxbenefitsDetails", "shortName": "INCOME TAXES - Changes in the Gross Unrecognized Tax benefits (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:SummaryOfIncomeTaxContingenciesTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "id7c1e1f23b5f4f83a6590c02cfe6734a_I20170930", "decimals": "-3", "lang": "en-US", "name": "us-gaap:UnrecognizedTaxBenefits", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R109": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie1392ed6de2b48bca6ce63be130986e0_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240914053 - Disclosure - INCOME TAXES - Components of Net Deferred Tax Assets and Liabilities (Details)", "role": "http://cabotcmp.com/role/INCOMETAXESComponentsofNetDeferredTaxAssetsandLiabilitiesDetails", "shortName": "INCOME TAXES - Components of Net Deferred Tax Assets and Liabilities (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie1392ed6de2b48bca6ce63be130986e0_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R11": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:RevenueFromContractWithCustomerTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "210111003 - Disclosure - REVENUE FROM CONTRACTS WITH CUSTOMERS", "role": "http://cabotcmp.com/role/REVENUEFROMCONTRACTSWITHCUSTOMERS", "shortName": "REVENUE FROM CONTRACTS WITH CUSTOMERS", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:RevenueFromContractWithCustomerTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R110": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i8bfa039cfe4746cba046060b58c73596_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:OperatingLossCarryforwards", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240924054 - Disclosure - INCOME TAXES - Net Operating Loss, Capital, and Tax Credit Carryforwards (Details)", "role": "http://cabotcmp.com/role/INCOMETAXESNetOperatingLossCapitalandTaxCreditCarryforwardsDetails", "shortName": "INCOME TAXES - Net Operating Loss, Capital, and Tax Credit Carryforwards (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i8bfa039cfe4746cba046060b58c73596_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:OperatingLossCarryforwards", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R111": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie1392ed6de2b48bca6ce63be130986e0_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:LossContingencyReceivable", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240944055 - Disclosure - COMMITMENTS AND CONTINGENCIES - Narrative (Details)", "role": "http://cabotcmp.com/role/COMMITMENTSANDCONTINGENCIESNarrativeDetails", "shortName": "COMMITMENTS AND CONTINGENCIES - Narrative (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie1392ed6de2b48bca6ce63be130986e0_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:LossContingencyReceivable", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R112": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock", "us-gaap:QuarterlyFinancialInformationTextBlock", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i2c711257730f4aada3045a281dcfca05_D20200701-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:NetIncomeLoss", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240974056 - Disclosure - EARNINGS PER SHARE (Details)", "role": "http://cabotcmp.com/role/EARNINGSPERSHAREDetails", "shortName": "EARNINGS PER SHARE (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": "-3", "lang": "en-US", "name": "us-gaap:UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R113": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:NumberOfOperatingSegments", "reportCount": 1, "unique": true, "unitRef": "segment", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "241004057 - Disclosure - SEGMENT REPORTING - Narrative (Details)", "role": "http://cabotcmp.com/role/SEGMENTREPORTINGNarrativeDetails", "shortName": "SEGMENT REPORTING - Narrative (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:NumberOfOperatingSegments", "reportCount": 1, "unique": true, "unitRef": "segment", "xsiNil": "false" } }, "R114": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock", "us-gaap:QuarterlyFinancialInformationTextBlock", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i2c711257730f4aada3045a281dcfca05_D20200701-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "241014058 - Disclosure - SEGMENT REPORTING - Revenue from External Customers (Details)", "role": "http://cabotcmp.com/role/SEGMENTREPORTINGRevenuefromExternalCustomersDetails", "shortName": "SEGMENT REPORTING - Revenue from External Customers (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "ix:continuation", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "iae900c1b68a04b689911aa0b9b937f63_D20191001-20200930", "decimals": "-3", "lang": "en-US", "name": "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R115": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "ccmp:CapitalExpendituresBySegmentTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "ccmp:CapitalExpenditures", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "241024059 - Disclosure - SEGMENT REPORTING - Capital Expenditures (Details)", "role": "http://cabotcmp.com/role/SEGMENTREPORTINGCapitalExpendituresDetails", "shortName": "SEGMENT REPORTING - Capital Expenditures (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "ccmp:CapitalExpendituresBySegmentTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "ccmp:CapitalExpenditures", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R116": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock", "us-gaap:QuarterlyFinancialInformationTextBlock", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i2c711257730f4aada3045a281dcfca05_D20200701-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:NetIncomeLoss", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "241034060 - Disclosure - SEGMENT REPORTING - Reconciliation from Segment Adjusted EBITDA (Details)", "role": "http://cabotcmp.com/role/SEGMENTREPORTINGReconciliationfromSegmentAdjustedEBITDADetails", "shortName": "SEGMENT REPORTING - Reconciliation from Segment Adjusted EBITDA (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "ccmp:SegmentAdjustedEBITDATableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": "-3", "lang": "en-US", "name": "us-gaap:InvestmentIncomeInterest", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R117": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock", "us-gaap:QuarterlyFinancialInformationTextBlock", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i2c711257730f4aada3045a281dcfca05_D20200701-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "241064061 - Disclosure - FINANCIAL INFORMATION BY GEOGRAPHIC AREA - Financial Information by Geographic Area (Details)", "role": "http://cabotcmp.com/role/FINANCIALINFORMATIONBYGEOGRAPHICAREAFinancialInformationbyGeographicAreaDetails", "shortName": "FINANCIAL INFORMATION BY GEOGRAPHIC AREA - Financial Information by Geographic Area (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "ix:continuation", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i0599009b91db4ffb83ad15234b31a1c9_D20191001-20200930", "decimals": "-3", "lang": "en-US", "name": "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R118": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock", "us-gaap:QuarterlyFinancialInformationTextBlock", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i2c711257730f4aada3045a281dcfca05_D20200701-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "241074062 - Disclosure - FINANCIAL INFORMATION BY GEOGRAPHIC AREA - Revenue by Major Foreign Customers (Details)", "role": "http://cabotcmp.com/role/FINANCIALINFORMATIONBYGEOGRAPHICAREARevenuebyMajorForeignCustomersDetails", "shortName": "FINANCIAL INFORMATION BY GEOGRAPHIC AREA - Revenue by Major Foreign Customers (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfRevenueFromExternalCustomersAttributedToForeignCountriesByGeographicAreaTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i612cc5f0b68a4dd49a552591f178668e_D20191001-20200930", "decimals": "-3", "lang": "en-US", "name": "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R119": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock", "us-gaap:QuarterlyFinancialInformationTextBlock", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i2c711257730f4aada3045a281dcfca05_D20200701-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "241104063 - Disclosure - SELECTED QUARTERLY OPERATING RESULTS (Details)", "role": "http://cabotcmp.com/role/SELECTEDQUARTERLYOPERATINGRESULTSDetails", "shortName": "SELECTED QUARTERLY OPERATING RESULTS (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock", "us-gaap:QuarterlyFinancialInformationTextBlock", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i2c711257730f4aada3045a281dcfca05_D20200701-20200930", "decimals": "-3", "lang": "en-US", "name": "us-gaap:CostOfGoodsAndServicesSold", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R12": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:BusinessCombinationDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "210161004 - Disclosure - BUSINESS COMBINATION", "role": "http://cabotcmp.com/role/BUSINESSCOMBINATION", "shortName": "BUSINESS COMBINATION", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:BusinessCombinationDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R120": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "srt:ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i28d7992d22bf438697716713638b7844_I20190930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:ValuationAllowancesAndReservesBalance", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "241124064 - Disclosure - SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Details)", "role": "http://cabotcmp.com/role/SCHEDULEIIVALUATIONANDQUALIFYINGACCOUNTSDetails", "shortName": "SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "srt:ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i604b79f38d314d7ca75b767bc9190ffb_I20170930", "decimals": "-3", "lang": "en-US", "name": "us-gaap:ValuationAllowancesAndReservesBalance", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R13": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FairValueDisclosuresTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "210221005 - Disclosure - FAIR VALUE OF FINANCIAL INSTRUMENTS", "role": "http://cabotcmp.com/role/FAIRVALUEOFFINANCIALINSTRUMENTS", "shortName": "FAIR VALUE OF FINANCIAL INSTRUMENTS", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FairValueDisclosuresTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R14": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:InventoryDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "210251006 - Disclosure - INVENTORIES", "role": "http://cabotcmp.com/role/INVENTORIES", "shortName": "INVENTORIES", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:InventoryDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R15": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "210281007 - Disclosure - PROPERTY, PLANT AND EQUIPMENT", "role": "http://cabotcmp.com/role/PROPERTYPLANTANDEQUIPMENT", "shortName": "PROPERTY, PLANT AND EQUIPMENT", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R16": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:AssetRetirementObligationDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "210311008 - Disclosure - ASSET RETIREMENT OBLIGATIONS", "role": "http://cabotcmp.com/role/ASSETRETIREMENTOBLIGATIONS", "shortName": "ASSET RETIREMENT OBLIGATIONS", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:AssetRetirementObligationDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R17": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:GoodwillAndIntangibleAssetsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "210341009 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS", "role": "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETS", "shortName": "GOODWILL AND OTHER INTANGIBLE ASSETS", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:GoodwillAndIntangibleAssetsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R18": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:PropertyPlantAndEquipmentAndIntangibleAssetsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "210411010 - Disclosure - LONG-LIVED ASSET IMPAIRMENT -WOOD TREATMENT", "role": "http://cabotcmp.com/role/LONGLIVEDASSETIMPAIRMENTWOODTREATMENT", "shortName": "LONG-LIVED ASSET IMPAIRMENT -WOOD TREATMENT", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:PropertyPlantAndEquipmentAndIntangibleAssetsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R19": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:OtherAssetsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "210451011 - Disclosure - OTHER LONG-TERM ASSETS", "role": "http://cabotcmp.com/role/OTHERLONGTERMASSETS", "shortName": "OTHER LONG-TERM ASSETS", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:OtherAssetsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R2": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:Revenues", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "100010002 - Statement - CONSOLIDATED STATEMENTS OF INCOME", "role": "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFINCOME", "shortName": "CONSOLIDATED STATEMENTS OF INCOME", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:Revenues", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R20": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:AccountsPayableAndAccruedLiabilitiesDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "210481012 - Disclosure - ACCRUED EXPENSES, INCOME TAXES PAYABLE AND OTHER CURRENT LIABILITIES", "role": "http://cabotcmp.com/role/ACCRUEDEXPENSESINCOMETAXESPAYABLEANDOTHERCURRENTLIABILITIES", "shortName": "ACCRUED EXPENSES, INCOME TAXES PAYABLE AND OTHER CURRENT LIABILITIES", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:AccountsPayableAndAccruedLiabilitiesDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R21": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DebtDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "210511013 - Disclosure - DEBT", "role": "http://cabotcmp.com/role/DEBT", "shortName": "DEBT", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DebtDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R22": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LesseeOperatingLeasesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "210561014 - Disclosure - LEASES", "role": "http://cabotcmp.com/role/LEASES", "shortName": "LEASES", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LesseeOperatingLeasesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R23": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "210631015 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS", "role": "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTS", "shortName": "DERIVATIVE FINANCIAL INSTRUMENTS", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R24": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ComprehensiveIncomeNoteTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "210701016 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)", "role": "http://cabotcmp.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSS", "shortName": "ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ComprehensiveIncomeNoteTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R25": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "210731017 - Disclosure - SHARE-BASED COMPENSATION PLANS", "role": "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANS", "shortName": "SHARE-BASED COMPENSATION PLANS", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R26": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:PensionAndOtherPostretirementBenefitsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "210811018 - Disclosure - EMPLOYEE RETIREMENT PLANS", "role": "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANS", "shortName": "EMPLOYEE RETIREMENT PLANS", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:PensionAndOtherPostretirementBenefitsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R27": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:IncomeTaxDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "210861019 - Disclosure - INCOME TAXES", "role": "http://cabotcmp.com/role/INCOMETAXES", "shortName": "INCOME TAXES", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:IncomeTaxDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R28": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "210931020 - Disclosure - COMMITMENTS AND CONTINGENCIES", "role": "http://cabotcmp.com/role/COMMITMENTSANDCONTINGENCIES", "shortName": "COMMITMENTS AND CONTINGENCIES", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R29": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:EarningsPerShareTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "210951021 - Disclosure - EARNINGS PER SHARE", "role": "http://cabotcmp.com/role/EARNINGSPERSHARE", "shortName": "EARNINGS PER SHARE", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:EarningsPerShareTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R3": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:NetIncomeLoss", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "100020003 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)", "role": "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMELOSS", "shortName": "CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": "-3", "lang": "en-US", "name": "us-gaap:ComprehensiveIncomeNetOfTax", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R30": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SegmentReportingDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "210981022 - Disclosure - SEGMENT REPORTING", "role": "http://cabotcmp.com/role/SEGMENTREPORTING", "shortName": "SEGMENT REPORTING", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SegmentReportingDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R31": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "ccmp:FinancialInformationTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "211041023 - Disclosure - FINANCIAL INFORMATION BY GEOGRAPHIC AREA", "role": "http://cabotcmp.com/role/FINANCIALINFORMATIONBYGEOGRAPHICAREA", "shortName": "FINANCIAL INFORMATION BY GEOGRAPHIC AREA", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "ccmp:FinancialInformationTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R32": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:QuarterlyFinancialInformationTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "211081024 - Disclosure - SELECTED QUARTERLY OPERATING RESULTS", "role": "http://cabotcmp.com/role/SELECTEDQUARTERLYOPERATINGRESULTS", "shortName": "SELECTED QUARTERLY OPERATING RESULTS", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:QuarterlyFinancialInformationTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R33": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "srt:ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "211111025 - Disclosure - SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS", "role": "http://cabotcmp.com/role/SCHEDULEIIVALUATIONANDQUALIFYINGACCOUNTS", "shortName": "SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "srt:ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R34": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ConsolidationPolicyTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "220042001 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)", "role": "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPolicies", "shortName": "SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)", "subGroupType": "policies", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ConsolidationPolicyTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R35": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfCreditLossesForFinancingReceivablesCurrentTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "230053001 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)", "role": "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESTables", "shortName": "SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfCreditLossesForFinancingReceivablesCurrentTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R36": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ContractWithCustomerAssetAndLiabilityTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "230123002 - Disclosure - REVENUE FROM CONTRACTS WITH CUSTOMERS (Tables)", "role": "http://cabotcmp.com/role/REVENUEFROMCONTRACTSWITHCUSTOMERSTables", "shortName": "REVENUE FROM CONTRACTS WITH CUSTOMERS (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ContractWithCustomerAssetAndLiabilityTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R37": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfBusinessAcquisitionsByAcquisitionTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "230173003 - Disclosure - BUSINESS COMBINATION (Tables)", "role": "http://cabotcmp.com/role/BUSINESSCOMBINATIONTables", "shortName": "BUSINESS COMBINATION (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfBusinessAcquisitionsByAcquisitionTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R38": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "230233004 - Disclosure - FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)", "role": "http://cabotcmp.com/role/FAIRVALUEOFFINANCIALINSTRUMENTSTables", "shortName": "FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R39": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfInventoryCurrentTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "230263005 - Disclosure - INVENTORIES (Tables)", "role": "http://cabotcmp.com/role/INVENTORIESTables", "shortName": "INVENTORIES (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfInventoryCurrentTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R4": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie1392ed6de2b48bca6ce63be130986e0_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "100030004 - Statement - CONSOLIDATED BALANCE SHEETS", "role": "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS", "shortName": "CONSOLIDATED BALANCE SHEETS", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie1392ed6de2b48bca6ce63be130986e0_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R40": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:PropertyPlantAndEquipmentTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "230293006 - Disclosure - PROPERTY, PLANT AND EQUIPMENT (Tables)", "role": "http://cabotcmp.com/role/PROPERTYPLANTANDEQUIPMENTTables", "shortName": "PROPERTY, PLANT AND EQUIPMENT (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:PropertyPlantAndEquipmentTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R41": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfChangeInAssetRetirementObligationTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "230323007 - Disclosure - ASSET RETIREMENT OBLIGATIONS (Tables)", "role": "http://cabotcmp.com/role/ASSETRETIREMENTOBLIGATIONSTables", "shortName": "ASSET RETIREMENT OBLIGATIONS (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfChangeInAssetRetirementObligationTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R42": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfGoodwillTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "230353008 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)", "role": "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSTables", "shortName": "GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfGoodwillTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R43": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DetailsOfImpairmentOfLongLivedAssetsHeldAndUsedByAssetTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "230423009 - Disclosure - LONG-LIVED ASSET IMPAIRMENT -WOOD TREATMENT (Tables)", "role": "http://cabotcmp.com/role/LONGLIVEDASSETIMPAIRMENTWOODTREATMENTTables", "shortName": "LONG-LIVED ASSET IMPAIRMENT -WOOD TREATMENT (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DetailsOfImpairmentOfLongLivedAssetsHeldAndUsedByAssetTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R44": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfOtherAssetsNoncurrentTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "230463010 - Disclosure - OTHER LONG-TERM ASSETS (Tables)", "role": "http://cabotcmp.com/role/OTHERLONGTERMASSETSTables", "shortName": "OTHER LONG-TERM ASSETS (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfOtherAssetsNoncurrentTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R45": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "230493011 - Disclosure - ACCRUED EXPENSES, INCOME TAXES PAYABLE AND OTHER CURRENT LIABILITIES (Tables)", "role": "http://cabotcmp.com/role/ACCRUEDEXPENSESINCOMETAXESPAYABLEANDOTHERCURRENTLIABILITIESTables", "shortName": "ACCRUED EXPENSES, INCOME TAXES PAYABLE AND OTHER CURRENT LIABILITIES (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R46": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfDebtInstrumentsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "230523012 - Disclosure - DEBT (Tables)", "role": "http://cabotcmp.com/role/DEBTTables", "shortName": "DEBT (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfDebtInstrumentsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R47": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LeaseCostTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "230573013 - Disclosure - LEASES (Tables)", "role": "http://cabotcmp.com/role/LEASESTables", "shortName": "LEASES (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LeaseCostTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R48": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfDerivativeInstrumentsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "230643014 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS (Tables)", "role": "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSTables", "shortName": "DERIVATIVE FINANCIAL INSTRUMENTS (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfDerivativeInstrumentsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R49": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "230713015 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Tables)", "role": "http://cabotcmp.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSTables", "shortName": "ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R5": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfCreditLossesForFinancingReceivablesCurrentTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie1392ed6de2b48bca6ce63be130986e0_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "100040005 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical)", "role": "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETSParenthetical", "shortName": "CONSOLIDATED BALANCE SHEETS (Parenthetical)", "subGroupType": "parenthetical", "uniqueAnchor": { "ancestors": [ "span", "div", "td", "tr", "table", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie1392ed6de2b48bca6ce63be130986e0_I20200930", "decimals": "INF", "lang": "en-US", "name": "us-gaap:CommonStockSharesAuthorized", "reportCount": 1, "unique": true, "unitRef": "shares", "xsiNil": "false" } }, "R50": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FairValueAssetsMeasuredOnNonrecurringBasisValuationTechniquesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "230743016 - Disclosure - SHARE-BASED COMPENSATION PLANS (Tables)", "role": "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSTables", "shortName": "SHARE-BASED COMPENSATION PLANS (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FairValueAssetsMeasuredOnNonrecurringBasisValuationTechniquesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R51": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfDefinedBenefitPlansDisclosuresTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "230823017 - Disclosure - EMPLOYEE RETIREMENT PLANS (Tables)", "role": "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSTables", "shortName": "EMPLOYEE RETIREMENT PLANS (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfDefinedBenefitPlansDisclosuresTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R52": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "230873018 - Disclosure - INCOME TAXES (Tables)", "role": "http://cabotcmp.com/role/INCOMETAXESTables", "shortName": "INCOME TAXES (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R53": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "230963019 - Disclosure - EARNINGS PER SHARE (Tables)", "role": "http://cabotcmp.com/role/EARNINGSPERSHARETables", "shortName": "EARNINGS PER SHARE (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R54": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfRevenueByMajorCustomersByReportingSegmentsTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "230993020 - Disclosure - SEGMENT REPORTING (Tables)", "role": "http://cabotcmp.com/role/SEGMENTREPORTINGTables", "shortName": "SEGMENT REPORTING (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfRevenueByMajorCustomersByReportingSegmentsTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R55": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsByGeographicalAreasTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "231053021 - Disclosure - FINANCIAL INFORMATION BY GEOGRAPHIC AREA (Tables)", "role": "http://cabotcmp.com/role/FINANCIALINFORMATIONBYGEOGRAPHICAREATables", "shortName": "FINANCIAL INFORMATION BY GEOGRAPHIC AREA (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsByGeographicalAreasTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R56": { "firstAnchor": { "ancestors": [ "us-gaap:QuarterlyFinancialInformationTextBlock", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "231093022 - Disclosure - SELECTED QUARTERLY OPERATING RESULTS (Tables)", "role": "http://cabotcmp.com/role/SELECTEDQUARTERLYOPERATINGRESULTSTables", "shortName": "SELECTED QUARTERLY OPERATING RESULTS (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "us-gaap:QuarterlyFinancialInformationTextBlock", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R57": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:NumberOfReportableSegments", "reportCount": 1, "unitRef": "segment", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240024001 - Disclosure - BACKGROUND AND BASIS OF PRESENTATION (Details)", "role": "http://cabotcmp.com/role/BACKGROUNDANDBASISOFPRESENTATIONDetails", "shortName": "BACKGROUND AND BASIS OF PRESENTATION (Details)", "subGroupType": "details", "uniqueAnchor": null }, "R58": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfCreditLossesForFinancingReceivablesCurrentTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ia6d135796fda4df3ad1098e4f8af6012_I20190930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240064002 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Accounts Receivable and Allowance for Doubtful Accounts (Details)", "role": "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESAccountsReceivableandAllowanceforDoubtfulAccountsDetails", "shortName": "SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Accounts Receivable and Allowance for Doubtful Accounts (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfCreditLossesForFinancingReceivablesCurrentTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ib73d00f325684153811e463cde277acb_I20180930", "decimals": "-3", "lang": "en-US", "name": "us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R59": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:SchedulesOfConcentrationOfRiskByRiskFactorTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie005e2b4bb724428a1f6d2fc3f7865a3_D20191001-20200930", "decimals": "2", "first": true, "lang": "en-US", "name": "us-gaap:ConcentrationRiskPercentage1", "reportCount": 1, "unique": true, "unitRef": "number", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240074003 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Concentration of Risk (Details)", "role": "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESConcentrationofRiskDetails", "shortName": "SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Concentration of Risk (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:SchedulesOfConcentrationOfRiskByRiskFactorTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie005e2b4bb724428a1f6d2fc3f7865a3_D20191001-20200930", "decimals": "2", "first": true, "lang": "en-US", "name": "us-gaap:ConcentrationRiskPercentage1", "reportCount": 1, "unique": true, "unitRef": "number", "xsiNil": "false" } }, "R6": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:NetIncomeLoss", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "100050006 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS", "role": "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS", "shortName": "CONSOLIDATED STATEMENTS OF CASH FLOWS", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": "-3", "lang": "en-US", "name": "us-gaap:DepreciationDepletionAndAmortization", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R60": { "firstAnchor": { "ancestors": [ "span", "div", "td", "tr", "table", "div", "ccmp:PropertyPlantAndEquipmentUsefulLivesTableTextBlock", "us-gaap:PropertyPlantAndEquipmentPolicyTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ief6eabce1c4c46d99fe6510db0ece1e9_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:PropertyPlantAndEquipmentUsefulLife", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240084004 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Property, Plant and Equipment (Details)", "role": "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPropertyPlantandEquipmentDetails", "shortName": "SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Property, Plant and Equipment (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "td", "tr", "table", "div", "ccmp:PropertyPlantAndEquipmentUsefulLivesTableTextBlock", "us-gaap:PropertyPlantAndEquipmentPolicyTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ief6eabce1c4c46d99fe6510db0ece1e9_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:PropertyPlantAndEquipmentUsefulLife", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R61": { "firstAnchor": { "ancestors": [ "span", "div", "us-gaap:GoodwillAndIntangibleAssetsPolicyTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "iea857efae29e4c619a81a8f677d2c921_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FiniteLivedIntangibleAssetUsefulLife", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240094005 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Goodwill and Other Intangible Assets (Details)", "role": "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESGoodwillandOtherIntangibleAssetsDetails", "shortName": "SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Goodwill and Other Intangible Assets (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "us-gaap:GoodwillAndIntangibleAssetsPolicyTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "iea857efae29e4c619a81a8f677d2c921_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FiniteLivedIntangibleAssetUsefulLife", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R62": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie1392ed6de2b48bca6ce63be130986e0_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:OperatingLeaseLiability", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240104006 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Recently Adopted Accounting Pronouncements (Details)", "role": "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESRecentlyAdoptedAccountingPronouncementsDetails", "shortName": "SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Recently Adopted Accounting Pronouncements (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "us-gaap:NewAccountingPronouncementsPolicyPolicyTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i99932c6b4af44443bbd8665e9f1517f5_I20191001", "decimals": "-3", "lang": "en-US", "name": "us-gaap:OperatingLeaseLiability", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R63": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ContractWithCustomerAssetAndLiabilityTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie1392ed6de2b48bca6ce63be130986e0_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:ContractWithCustomerLiabilityCurrent", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240134007 - Disclosure - REVENUE FROM CONTRACTS WITH CUSTOMERS - Reconciliation of Contract Balances (Details)", "role": "http://cabotcmp.com/role/REVENUEFROMCONTRACTSWITHCUSTOMERSReconciliationofContractBalancesDetails", "shortName": "REVENUE FROM CONTRACTS WITH CUSTOMERS - Reconciliation of Contract Balances (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ContractWithCustomerAssetAndLiabilityTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie1392ed6de2b48bca6ce63be130986e0_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:ContractWithCustomerLiabilityCurrent", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R64": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:ContractWithCustomerLiabilityRevenueRecognized", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240144008 - Disclosure - REVENUE FROM CONTRACTS WITH CUSTOMERS - Narrative (Details)", "role": "http://cabotcmp.com/role/REVENUEFROMCONTRACTSWITHCUSTOMERSNarrativeDetails", "shortName": "REVENUE FROM CONTRACTS WITH CUSTOMERS - Narrative (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:ContractWithCustomerLiabilityRevenueRecognized", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R65": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie1392ed6de2b48bca6ce63be130986e0_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:RevenueRemainingPerformanceObligation", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240154009 - Disclosure - REVENUE FROM CONTRACTS WITH CUSTOMERS - Transaction Price Allocated to Remaining Performance Obligations (Details)", "role": "http://cabotcmp.com/role/REVENUEFROMCONTRACTSWITHCUSTOMERSTransactionPriceAllocatedtoRemainingPerformanceObligationsDetails", "shortName": "REVENUE FROM CONTRACTS WITH CUSTOMERS - Transaction Price Allocated to Remaining Performance Obligations (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie1392ed6de2b48bca6ce63be130986e0_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:RevenueRemainingPerformanceObligation", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R66": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240184010 - Disclosure - BUSINESS COMBINATION - Narrative (Details)", "role": "http://cabotcmp.com/role/BUSINESSCOMBINATIONNarrativeDetails", "shortName": "BUSINESS COMBINATION - Narrative (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i965e5b4cef014207a85159bc84b4aaa5_D20181001-20190930", "decimals": "-3", "lang": "en-US", "name": "us-gaap:AmortizationOfAcquisitionCosts", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R67": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "ix:continuation", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie3243a6794014631ae8eb439aa071eca_D20181115-20181115", "decimals": "-3", "first": true, "lang": "en-US", "name": "ccmp:PaymentsToAcquireBusinessesGrossEquity", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240194011 - Disclosure - BUSINESS COMBINATION - Consideration (Details)", "role": "http://cabotcmp.com/role/BUSINESSCOMBINATIONConsiderationDetails", "shortName": "BUSINESS COMBINATION - Consideration (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "ix:continuation", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie3243a6794014631ae8eb439aa071eca_D20181115-20181115", "decimals": "-3", "first": true, "lang": "en-US", "name": "ccmp:PaymentsToAcquireBusinessesGrossEquity", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R68": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfFiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTextBlock", "us-gaap:ScheduleOfIndefiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i5b94d14965a64f40bffeb378261a39bf_I20181115", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240204012 - Disclosure - BUSINESS COMBINATION - Identifiable Intangible Assets Acquired (Details)", "role": "http://cabotcmp.com/role/BUSINESSCOMBINATIONIdentifiableIntangibleAssetsAcquiredDetails", "shortName": "BUSINESS COMBINATION - Identifiable Intangible Assets Acquired (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfFiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTextBlock", "us-gaap:ScheduleOfIndefiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i5b94d14965a64f40bffeb378261a39bf_I20181115", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R69": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:BusinessAcquisitionProFormaInformationTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ia894ec808d124f9bb21f4ec22f617e10_D20181001-20190930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:BusinessAcquisitionsProFormaRevenue", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240214013 - Disclosure - BUSINESS COMBINATION - Pro Forma Information (Details)", "role": "http://cabotcmp.com/role/BUSINESSCOMBINATIONProFormaInformationDetails", "shortName": "BUSINESS COMBINATION - Pro Forma Information (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:BusinessAcquisitionProFormaInformationTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ia894ec808d124f9bb21f4ec22f617e10_D20181001-20190930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:BusinessAcquisitionsProFormaRevenue", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R7": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i0da64ae90ef64a3a9d47bb3e19783c96_I20170930", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:CommonStockSharesOutstanding", "reportCount": 1, "unique": true, "unitRef": "shares", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "100060007 - Statement - CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY", "role": "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY", "shortName": "CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i0da64ae90ef64a3a9d47bb3e19783c96_I20170930", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:CommonStockSharesOutstanding", "reportCount": 1, "unique": true, "unitRef": "shares", "xsiNil": "false" } }, "R70": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i4c1666c56d1849bdba43b0dac9c47fab_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:CashAndCashEquivalentsFairValueDisclosure", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240244014 - Disclosure - FAIR VALUE OF FINANCIAL INSTRUMENTS - Fair Value Disclosure (Details)", "role": "http://cabotcmp.com/role/FAIRVALUEOFFINANCIALINSTRUMENTSFairValueDisclosureDetails", "shortName": "FAIR VALUE OF FINANCIAL INSTRUMENTS - Fair Value Disclosure (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i4c1666c56d1849bdba43b0dac9c47fab_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:CashAndCashEquivalentsFairValueDisclosure", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R71": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfInventoryCurrentTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie1392ed6de2b48bca6ce63be130986e0_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:InventoryRawMaterialsNetOfReserves", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240274015 - Disclosure - INVENTORIES (Details)", "role": "http://cabotcmp.com/role/INVENTORIESDetails", "shortName": "INVENTORIES (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfInventoryCurrentTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie1392ed6de2b48bca6ce63be130986e0_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:InventoryRawMaterialsNetOfReserves", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R72": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:PropertyPlantAndEquipmentTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie1392ed6de2b48bca6ce63be130986e0_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:PropertyPlantAndEquipmentGross", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240304016 - Disclosure - PROPERTY, PLANT AND EQUIPMENT (Details)", "role": "http://cabotcmp.com/role/PROPERTYPLANTANDEQUIPMENTDetails", "shortName": "PROPERTY, PLANT AND EQUIPMENT (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:PropertyPlantAndEquipmentTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie1392ed6de2b48bca6ce63be130986e0_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:PropertyPlantAndEquipmentGross", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R73": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfChangeInAssetRetirementObligationTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ia6d135796fda4df3ad1098e4f8af6012_I20190930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:AssetRetirementObligation", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240334017 - Disclosure - ASSET RETIREMENT OBLIGATIONS (Details)", "role": "http://cabotcmp.com/role/ASSETRETIREMENTOBLIGATIONSDetails", "shortName": "ASSET RETIREMENT OBLIGATIONS (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfChangeInAssetRetirementObligationTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": "-3", "lang": "en-US", "name": "us-gaap:AssetRetirementObligationLiabilitiesIncurred", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R74": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfGoodwillTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ia6d135796fda4df3ad1098e4f8af6012_I20190930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:Goodwill", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240364018 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS - Goodwill Activity (Details)", "role": "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSGoodwillActivityDetails", "shortName": "GOODWILL AND OTHER INTANGIBLE ASSETS - Goodwill Activity (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfGoodwillTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": "-3", "lang": "en-US", "name": "us-gaap:GoodwillForeignCurrencyTranslationGainLoss", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R75": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfIndefiniteLivedIntangibleAssetsTableTextBlock", "us-gaap:ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie1392ed6de2b48bca6ce63be130986e0_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240374019 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS - Components of Other Intangible Assets (Details)", "role": "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsDetails", "shortName": "GOODWILL AND OTHER INTANGIBLE ASSETS - Components of Other Intangible Assets (Details)", "subGroupType": "details", "uniqueAnchor": null }, "R76": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "ix:continuation", "ix:continuation", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ia6d135796fda4df3ad1098e4f8af6012_I20190930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:FiniteLivedIntangibleAssetsGross", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240384020 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS - Components of Other Intangible Assets, Activity (Details)", "role": "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsActivityDetails", "shortName": "GOODWILL AND OTHER INTANGIBLE ASSETS - Components of Other Intangible Assets, Activity (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "ix:continuation", "ix:continuation", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ia6d135796fda4df3ad1098e4f8af6012_I20190930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:FiniteLivedIntangibleAssetsGross", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R77": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:AmortizationOfIntangibleAssets", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240394021 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS - Narrative (Details)", "role": "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSNarrativeDetails", "shortName": "GOODWILL AND OTHER INTANGIBLE ASSETS - Narrative (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:AmortizationOfIntangibleAssets", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R78": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "ix:continuation", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie1392ed6de2b48bca6ce63be130986e0_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240404022 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS - Amortization Expense (Details)", "role": "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSAmortizationExpenseDetails", "shortName": "GOODWILL AND OTHER INTANGIBLE ASSETS - Amortization Expense (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "ix:continuation", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie1392ed6de2b48bca6ce63be130986e0_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R79": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie1392ed6de2b48bca6ce63be130986e0_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:Goodwill", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240434023 - Disclosure - LONG-LIVED ASSET IMPAIRMENT -WOOD TREATMENT - Narrative (Details)", "role": "http://cabotcmp.com/role/LONGLIVEDASSETIMPAIRMENTWOODTREATMENTNarrativeDetails", "shortName": "LONG-LIVED ASSET IMPAIRMENT -WOOD TREATMENT - Narrative (Details)", "subGroupType": "details", "uniqueAnchor": null }, "R8": { "firstAnchor": { "ancestors": [ "span", "div", "td", "tr", "table", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:CommonStockDividendsPerShareDeclared", "reportCount": 1, "unique": true, "unitRef": "usdPerShare", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "100070008 - Statement - CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDER'S EQUITY (Parenthetical)", "role": "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITYParenthetical", "shortName": "CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDER'S EQUITY (Parenthetical)", "subGroupType": "parenthetical", "uniqueAnchor": { "ancestors": [ "span", "div", "td", "tr", "table", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:CommonStockDividendsPerShareDeclared", "reportCount": 1, "unique": true, "unitRef": "usdPerShare", "xsiNil": "false" } }, "R80": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "ix:continuation", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie1392ed6de2b48bca6ce63be130986e0_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:PropertyPlantAndEquipmentNet", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240444024 - Disclosure - LONG-LIVED ASSET IMPAIRMENT -WOOD TREATMENT - Long-lived Asset Impairment (Details)", "role": "http://cabotcmp.com/role/LONGLIVEDASSETIMPAIRMENTWOODTREATMENTLonglivedAssetImpairmentDetails", "shortName": "LONG-LIVED ASSET IMPAIRMENT -WOOD TREATMENT - Long-lived Asset Impairment (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "ix:continuation", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i62ea243ea52c41779c462731fe3249c9_I20200930", "decimals": "-3", "lang": "en-US", "name": "us-gaap:FiniteLivedIntangibleAssetsNet", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R81": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfOtherAssetsNoncurrentTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie1392ed6de2b48bca6ce63be130986e0_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:OperatingLeaseRightOfUseAsset", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240474025 - Disclosure - OTHER LONG-TERM ASSETS (Details)", "role": "http://cabotcmp.com/role/OTHERLONGTERMASSETSDetails", "shortName": "OTHER LONG-TERM ASSETS (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfOtherAssetsNoncurrentTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie1392ed6de2b48bca6ce63be130986e0_I20200930", "decimals": "-3", "lang": "en-US", "name": "us-gaap:ContractWithCustomerAssetNetCurrent", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R82": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie1392ed6de2b48bca6ce63be130986e0_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:EmployeeRelatedLiabilitiesCurrent", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240504026 - Disclosure - ACCRUED EXPENSES, INCOME TAXES PAYABLE AND OTHER CURRENT LIABILITIES (Details)", "role": "http://cabotcmp.com/role/ACCRUEDEXPENSESINCOMETAXESPAYABLEANDOTHERCURRENTLIABILITIESDetails", "shortName": "ACCRUED EXPENSES, INCOME TAXES PAYABLE AND OTHER CURRENT LIABILITIES (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie1392ed6de2b48bca6ce63be130986e0_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:EmployeeRelatedLiabilitiesCurrent", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R83": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfDebtInstrumentsTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie1392ed6de2b48bca6ce63be130986e0_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240534027 - Disclosure - DEBT - Total Debt (Details)", "role": "http://cabotcmp.com/role/DEBTTotalDebtDetails", "shortName": "DEBT - Total Debt (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfDebtInstrumentsTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie1392ed6de2b48bca6ce63be130986e0_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R84": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:RepaymentsOfLongTermDebt", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240544028 - Disclosure - DEBT - Narrative (Details)", "role": "http://cabotcmp.com/role/DEBTNarrativeDetails", "shortName": "DEBT - Narrative (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie09cf10169d24180b8c2f042e81d54ec_D20191001-20200930", "decimals": "-5", "lang": "en-US", "name": "us-gaap:RepaymentsOfLongTermDebt", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R85": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfDebtInstrumentsTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie1392ed6de2b48bca6ce63be130986e0_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:LongTermDebt", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240554029 - Disclosure - DEBT - Principal Repayments (Details)", "role": "http://cabotcmp.com/role/DEBTPrincipalRepaymentsDetails", "shortName": "DEBT - Principal Repayments (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfMaturitiesOfLongTermDebtTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i0706407e6131433e8ee9eb5854c40754_I20200930", "decimals": "-3", "lang": "en-US", "name": "us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R86": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie1392ed6de2b48bca6ce63be130986e0_I20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LesseeOperatingLeaseTermOfContract", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240584030 - Disclosure - LEASES (Details)", "role": "http://cabotcmp.com/role/LEASESDetails", "shortName": "LEASES (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie1392ed6de2b48bca6ce63be130986e0_I20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LesseeOperatingLeaseTermOfContract", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R87": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:LeaseCostTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:OperatingLeaseCost", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240594031 - Disclosure - LEASES - Components of Lease Expense (Details)", "role": "http://cabotcmp.com/role/LEASESComponentsofLeaseExpenseDetails", "shortName": "LEASES - Components of Lease Expense (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:LeaseCostTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:OperatingLeaseCost", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R88": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfOtherAssetsNoncurrentTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie1392ed6de2b48bca6ce63be130986e0_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:OperatingLeaseRightOfUseAsset", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240604032 - Disclosure - LEASES - Supplemental Balance Sheet Information (Details)", "role": "http://cabotcmp.com/role/LEASESSupplementalBalanceSheetInformationDetails", "shortName": "LEASES - Supplemental Balance Sheet Information (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "ccmp:AssetsAndLiabilitiesLesseeTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie1392ed6de2b48bca6ce63be130986e0_I20200930", "decimals": null, "lang": "en-US", "name": "us-gaap:OperatingLeaseWeightedAverageRemainingLeaseTerm1", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R89": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie1392ed6de2b48bca6ce63be130986e0_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240614033 - Disclosure - LEASES - Future Maturities of Operating Lease Liabilities (Details)", "role": "http://cabotcmp.com/role/LEASESFutureMaturitiesofOperatingLeaseLiabilitiesDetails", "shortName": "LEASES - Future Maturities of Operating Lease Liabilities (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie1392ed6de2b48bca6ce63be130986e0_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R9": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:BusinessDescriptionAndBasisOfPresentationTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "210011001 - Disclosure - BACKGROUND AND BASIS OF PRESENTATION", "role": "http://cabotcmp.com/role/BACKGROUNDANDBASISOFPRESENTATION", "shortName": "BACKGROUND AND BASIS OF PRESENTATION", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:BusinessDescriptionAndBasisOfPresentationTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R90": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:OperatingLeasesOfLesseeDisclosureTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ia6d135796fda4df3ad1098e4f8af6012_I20190930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:OperatingLeasesFutureMinimumPaymentsDueCurrent", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240624034 - Disclosure - LEASES - Minimum Lease Payments Under Topic 840 (Details)", "role": "http://cabotcmp.com/role/LEASESMinimumLeasePaymentsUnderTopic840Details", "shortName": "LEASES - Minimum Lease Payments Under Topic 840 (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:OperatingLeasesOfLesseeDisclosureTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ia6d135796fda4df3ad1098e4f8af6012_I20190930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:OperatingLeasesFutureMinimumPaymentsDueCurrent", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R91": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfDerivativeInstrumentsTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i3f387f9e391b4c3c8f760e02a586fddd_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:DerivativeNotionalAmount", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240654035 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS - Notional amounts (Details)", "role": "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSNotionalamountsDetails", "shortName": "DERIVATIVE FINANCIAL INSTRUMENTS - Notional amounts (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfDerivativeInstrumentsTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i3f387f9e391b4c3c8f760e02a586fddd_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:DerivativeNotionalAmount", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R92": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i3e2915137ea6445c877284a5d8725692_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:DerivativeFairValueOfDerivativeAsset", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240664036 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS - Fair Value of Derivative Instruments in the Consolidated Balance Sheet (Details)", "role": "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSFairValueofDerivativeInstrumentsintheConsolidatedBalanceSheetDetails", "shortName": "DERIVATIVE FINANCIAL INSTRUMENTS - Fair Value of Derivative Instruments in the Consolidated Balance Sheet (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i3e2915137ea6445c877284a5d8725692_I20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:DerivativeFairValueOfDerivativeAsset", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R93": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ib2a162ef480a495ba30d0ef3e73cb163_D20191001-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:DerivativeGainLossOnDerivativeNet", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240674037 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS - Effect of Derivative Instruments on the Consolidated Statement of Income (Details)", "role": "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSEffectofDerivativeInstrumentsontheConsolidatedStatementofIncomeDetails", "shortName": "DERIVATIVE FINANCIAL INSTRUMENTS - Effect of Derivative Instruments on the Consolidated Statement of Income (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ib2a162ef480a495ba30d0ef3e73cb163_D20191001-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:DerivativeGainLossOnDerivativeNet", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R94": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i1d370f768f9341bdab7801350a55dd7c_D20191001-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:OciBeforeReclassificationsBeforeTaxAttributableToParent", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240684038 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS - Effect of Derivative Instruments on Accumulated Other Comprehensive Income (Details)", "role": "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSEffectofDerivativeInstrumentsonAccumulatedOtherComprehensiveIncomeDetails", "shortName": "DERIVATIVE FINANCIAL INSTRUMENTS - Effect of Derivative Instruments on Accumulated Other Comprehensive Income (Details)", "subGroupType": "details", "uniqueAnchor": null }, "R95": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "if934554462424983924292c16b4c975e_D20191001-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:DerivativeInstrumentsGainLossReclassificationFromAccumulatedOCIToIncomeEstimatedNetAmountToBeTransferred", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240694039 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS - Narrative (Details)", "role": "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSNarrativeDetails", "shortName": "DERIVATIVE FINANCIAL INSTRUMENTS - Narrative (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "if934554462424983924292c16b4c975e_D20191001-20200930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:DerivativeInstrumentsGainLossReclassificationFromAccumulatedOCIToIncomeEstimatedNetAmountToBeTransferred", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R96": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ia6d135796fda4df3ad1098e4f8af6012_I20190930", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:StockholdersEquity", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240724040 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details)", "role": "http://cabotcmp.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSDetails", "shortName": "ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": "-3", "lang": "en-US", "name": "ccmp:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentIncludingStandardTaxEffect", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R97": { "firstAnchor": { "ancestors": [ "ix:continuation", "span", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ie1392ed6de2b48bca6ce63be130986e0_I20200930", "decimals": "INF", "first": true, "lang": "en-US", "name": "ccmp:NumberOfEquityIncentiveAwards", "reportCount": 1, "unitRef": "award", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240754041 - Disclosure - SHARE-BASED COMPENSATION PLANS - Narrative (Details)", "role": "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSNarrativeDetails", "shortName": "SHARE-BASED COMPENSATION PLANS - Narrative (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": null, "lang": "en-US", "name": "ccmp:PeriodOfTerminationToAccelerateVestAwardsToShares", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R98": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:FairValueAssetsMeasuredOnNonrecurringBasisValuationTechniquesTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i742da7ed24fd42ea8de42b75b3b77583_D20191001-20200930", "decimals": "2", "first": true, "lang": "en-US", "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue", "reportCount": 1, "unique": true, "unitRef": "usdPerShare", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240764042 - Disclosure - SHARE-BASED COMPENSATION PLANS - Weighted Average Assumptions (Details)", "role": "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSWeightedAverageAssumptionsDetails", "shortName": "SHARE-BASED COMPENSATION PLANS - Weighted Average Assumptions (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:FairValueAssetsMeasuredOnNonrecurringBasisValuationTechniquesTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i742da7ed24fd42ea8de42b75b3b77583_D20191001-20200930", "decimals": "2", "first": true, "lang": "en-US", "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue", "reportCount": 1, "unique": true, "unitRef": "usdPerShare", "xsiNil": "false" } }, "R99": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:FairValueAssetsMeasuredOnNonrecurringBasisValuationTechniquesTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "ia6d135796fda4df3ad1098e4f8af6012_I20190930", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber", "reportCount": 1, "unitRef": "shares", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "240774043 - Disclosure - SHARE-BASED COMPENSATION PLANS - Stock Option Activity (Details)", "role": "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSStockOptionActivityDetails", "shortName": "SHARE-BASED COMPENSATION PLANS - Stock Option Activity (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:FairValueAssetsMeasuredOnNonrecurringBasisValuationTechniquesTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i7a3d5bc01e8c484cbb44ce8ae63ac42c_D20191001-20200930", "decimals": "INF", "lang": "en-US", "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod", "reportCount": 1, "unique": true, "unitRef": "shares", "xsiNil": "false" } }, "R9999": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "ccmp-20200930.htm", "contextRef": "i74961c2292e04cb6a01e575f3f2a2ecf_I20191001", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "", "isDefault": "false", "longName": "Uncategorized Items - ccmp-20200930.htm", "role": "http://xbrl.sec.gov/role/uncategorizedFacts", "shortName": "Uncategorized Items - ccmp-20200930.htm", "subGroupType": "", "uniqueAnchor": null } }, "segmentCount": 116, "tag": { "ccmp_AbrasiveParticleSupplyAgreementMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Abrasive Particle Supply Agreement", "label": "Abrasive Particle Supply Agreement [Member]", "terseLabel": "Abrasive particle supply agreement" } } }, "localname": "AbrasiveParticleSupplyAgreementMember", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/COMMITMENTSANDCONTINGENCIESNarrativeDetails" ], "xbrltype": "domainItemType" }, "ccmp_AccruedExpensesAndOtherCurrentLiabilitiesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line item in the statement of financial position in which the fair value amounts of the derivative instruments are included.", "label": "Accrued Expenses and Other Current Liabilities [Member]", "terseLabel": "Accrued expenses, income taxes payable and other current liabilities" } } }, "localname": "AccruedExpensesAndOtherCurrentLiabilitiesMember", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSFairValueofDerivativeInstrumentsintheConsolidatedBalanceSheetDetails" ], "xbrltype": "domainItemType" }, "ccmp_AcquiredFiniteLivedAndIndefiniteLivedIntangibleAssetsLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Acquired Finite-Lived and Indefinite-Lived Intangible Assets", "label": "Acquired Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]", "terseLabel": "Acquired Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]" } } }, "localname": "AcquiredFiniteLivedAndIndefiniteLivedIntangibleAssetsLineItems", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONIdentifiableIntangibleAssetsAcquiredDetails" ], "xbrltype": "stringItemType" }, "ccmp_AcquiredPatentsAndLicensesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Exclusive legal right granted by the government to the owner of the acquired patents and licenses to exploit an invention or a process for a period of time specified by law.", "label": "Acquired Patents and Licenses [Member]", "terseLabel": "Acquired patents and licenses" } } }, "localname": "AcquiredPatentsAndLicensesMember", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsActivityDetails", "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsDetails", "http://cabotcmp.com/role/LONGLIVEDASSETIMPAIRMENTWOODTREATMENTLonglivedAssetImpairmentDetails" ], "xbrltype": "domainItemType" }, "ccmp_AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Adjusted Earnings Before Interest, Taxes, Depreciation And Amortization", "label": "Adjusted Earnings Before Interest, Taxes, Depreciation And Amortization", "terseLabel": "Adjusted EBITDA" } } }, "localname": "AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/SEGMENTREPORTINGReconciliationfromSegmentAdjustedEBITDADetails" ], "xbrltype": "monetaryItemType" }, "ccmp_AllowanceForDoubtfulAccountsDeductionsAndAdjustments": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Reflects the net amount of other additions and reductions in the reserve for credit losses.", "label": "Allowance For Doubtful Accounts Deductions And Adjustments", "terseLabel": "Deductions and adjustments" } } }, "localname": "AllowanceForDoubtfulAccountsDeductionsAndAdjustments", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESAccountsReceivableandAllowanceforDoubtfulAccountsDetails" ], "xbrltype": "monetaryItemType" }, "ccmp_AssetsAndLiabilitiesLesseeTableTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Assets and Liabilities, Lessee", "label": "Assets and Liabilities, Lessee [Table Text Block]", "terseLabel": "Supplemental balance sheet information" } } }, "localname": "AssetsAndLiabilitiesLesseeTableTextBlock", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/LEASESTables" ], "xbrltype": "textBlockItemType" }, "ccmp_BenefitPlanKMGEmployeesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Benefit Plan KMG Employees", "label": "Benefit Plan KMG Employees [Member]", "terseLabel": "Benefit plan KMG employees" } } }, "localname": "BenefitPlanKMGEmployeesMember", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSPurchaseObligationsinForeignJurisdictionsDetails" ], "xbrltype": "domainItemType" }, "ccmp_CMPPadsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "CMP Pads", "label": "CMP Pads [Member]", "terseLabel": "CMP Pads" } } }, "localname": "CMPPadsMember", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/SEGMENTREPORTINGRevenuefromExternalCustomersDetails" ], "xbrltype": "domainItemType" }, "ccmp_CMPSlurriesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "CMP Slurries", "label": "CMP Slurries [Member]", "terseLabel": "CMP Slurries" } } }, "localname": "CMPSlurriesMember", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/SEGMENTREPORTINGRevenuefromExternalCustomersDetails" ], "xbrltype": "domainItemType" }, "ccmp_CapitalExpenditures": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Capital Expenditures", "label": "Capital Expenditures", "terseLabel": "Capital expenditures" } } }, "localname": "CapitalExpenditures", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/SEGMENTREPORTINGCapitalExpendituresDetails" ], "xbrltype": "monetaryItemType" }, "ccmp_CapitalExpendituresBySegmentTableTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Capital Expenditures by Segment", "label": "Capital Expenditures by Segment [Table Text Block]", "terseLabel": "Capital expenditures by segment" } } }, "localname": "CapitalExpendituresBySegmentTableTextBlock", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/SEGMENTREPORTINGTables" ], "xbrltype": "textBlockItemType" }, "ccmp_CapitalLeaseMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Capital Lease", "label": "Capital Lease [Member]", "terseLabel": "Finance leases" } } }, "localname": "CapitalLeaseMember", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/PROPERTYPLANTANDEQUIPMENTDetails" ], "xbrltype": "domainItemType" }, "ccmp_ChargesRelatedToCOVID19": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Charges Related to COVID-19", "label": "Charges Related to COVID-19", "terseLabel": "Costs related to the Pandemic, net of grants received" } } }, "localname": "ChargesRelatedToCOVID19", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/SEGMENTREPORTINGReconciliationfromSegmentAdjustedEBITDADetails" ], "xbrltype": "monetaryItemType" }, "ccmp_CreditAgreementMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Credit Agreement among the Company, as Borrower, Bank of America, N.A., as administrative agent, swing line lender and an L/C issuer, Bank of America Merrill Lynch and J.P. Morgan Securities LLC, as joint lead arrangers and joint book managers, JPMorgan Chase Bank, N.A., as syndication agent, and Wells Fargo Bank, N.A. as documentation agent. The Credit Agreement provided for a Term Loan and a Revolving Credit Facility.", "label": "Credit Agreement [Member]", "terseLabel": "Credit Agreement" } } }, "localname": "CreditAgreementMember", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/DEBTNarrativeDetails", "http://cabotcmp.com/role/DEBTTotalDebtDetails" ], "xbrltype": "domainItemType" }, "ccmp_CustomerRelationshipsAllOtherMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Customer Relationships, All Other", "label": "Customer Relationships, All Other [Member]", "terseLabel": "Customer relationships - all other" } } }, "localname": "CustomerRelationshipsAllOtherMember", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONIdentifiableIntangibleAssetsAcquiredDetails" ], "xbrltype": "domainItemType" }, "ccmp_CustomerRelationshipsElectronicChecmicalsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Customer Relationships, Electronic Checmicals", "label": "Customer Relationships, Electronic Checmicals [Member]", "terseLabel": "Customer relationships - Electronic chemicals" } } }, "localname": "CustomerRelationshipsElectronicChecmicalsMember", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONIdentifiableIntangibleAssetsAcquiredDetails" ], "xbrltype": "domainItemType" }, "ccmp_CustomerRelationshipsFlowchemMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Customer Relationships, Flowchem", "label": "Customer Relationships, Flowchem [Member]", "terseLabel": "Customer relationships - Flowchem" } } }, "localname": "CustomerRelationshipsFlowchemMember", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONIdentifiableIntangibleAssetsAcquiredDetails" ], "xbrltype": "domainItemType" }, "ccmp_DebtInstrumentCovenantTermsExcessCashFlow": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Debt Instrument, Covenant Terms, Excess Cash Flow", "label": "Debt Instrument, Covenant Terms, Excess Cash Flow", "terseLabel": "Debt requirements, annual excess cash flow" } } }, "localname": "DebtInstrumentCovenantTermsExcessCashFlow", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/DEBTNarrativeDetails" ], "xbrltype": "percentItemType" }, "ccmp_DebtInstrumentCovenantTermsNetCashProceeds": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Debt Instrument, Covenant Terms, Net Cash Proceeds", "label": "Debt Instrument, Covenant Terms, Net Cash Proceeds", "terseLabel": "Debt requirements, net cash proceeds of recovery events and non-ordinary course asset sales" } } }, "localname": "DebtInstrumentCovenantTermsNetCashProceeds", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/DEBTNarrativeDetails" ], "xbrltype": "percentItemType" }, "ccmp_DepositSharePlanMatchInRestrictedShares": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Percentage of restricted shares match under the deposit share plan.", "label": "Deposit share plan match in restricted shares", "terseLabel": "Deposit share plan match in restricted shares" } } }, "localname": "DepositSharePlanMatchInRestrictedShares", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSNarrativeDetails" ], "xbrltype": "percentItemType" }, "ccmp_DepositSharePlanMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Incremental common shares attributable to unvested restricted stock that were not included in diluted earnings per share (EPS) because to do so would increase EPS amounts or decrease loss per share amounts for the period presented. Restricted stock are shares of stock for which sale is contractually or governmentally restricted for a given period of time.", "label": "Deposit Share Plan [Member]", "terseLabel": "Deposit Share Program" } } }, "localname": "DepositSharePlanMember", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSNarrativeDetails" ], "xbrltype": "domainItemType" }, "ccmp_DerivativeInstrumentsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Derivative Instruments [Abstract]", "terseLabel": "Derivative Instruments [Abstract]" } } }, "localname": "DerivativeInstrumentsAbstract", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSNarrativeDetails" ], "xbrltype": "stringItemType" }, "ccmp_DistributionRightsCustomerRelationshipsAndOtherMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Distribution rights, customer relationship and other that exists between an entity and its customer, for example, but not limited to, tenant relationships. Legal rights, generally of a limited duration, to distribute a product or products, often within specific geographic areas or supply channels.", "label": "Distribution Rights, Customer relationships, and Other [Member]", "terseLabel": "Customer relationships, trade names, and distribution rights" } } }, "localname": "DistributionRightsCustomerRelationshipsAndOtherMember", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsActivityDetails", "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsDetails" ], "xbrltype": "domainItemType" }, "ccmp_EarningsBeforeInterestTaxesDepreciationAndAmortization": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Earnings Before Interest, Taxes, Depreciation, And Amortization", "label": "Earnings Before Interest, Taxes, Depreciation, And Amortization", "terseLabel": "EBITDA" } } }, "localname": "EarningsBeforeInterestTaxesDepreciationAndAmortization", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/SEGMENTREPORTINGReconciliationfromSegmentAdjustedEBITDADetails" ], "xbrltype": "monetaryItemType" }, "ccmp_EarningsBeforeInterestTaxesDepreciationAndAmortizationForUnallocatedCorporateExpenses": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Earnings Before Interest, Taxes, Depreciation and Amortization, Unallocated Corporate Expenses", "label": "Earnings Before Interest, Taxes, Depreciation and Amortization for Unallocated Corporate Expenses", "negatedLabel": "Unallocated corporate expenses" } } }, "localname": "EarningsBeforeInterestTaxesDepreciationAndAmortizationForUnallocatedCorporateExpenses", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/SEGMENTREPORTINGReconciliationfromSegmentAdjustedEBITDADetails" ], "xbrltype": "monetaryItemType" }, "ccmp_EffectiveIncomeTaxRateReconciliationChangeInReservePosition": { "auth_ref": [], "calculation": { "http://cabotcmp.com/role/INCOMETAXESProvisionforIncomeTaxesDetails": { "order": 3.0, "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations", "weight": 1.0 } }, "lang": { "en-US": { "role": { "documentation": "Effective Income Tax Rate Reconciliation, Change in Reserve Position", "label": "Effective Income Tax Rate Reconciliation, Change in Reserve Position", "terseLabel": "Change in reserve positions" } } }, "localname": "EffectiveIncomeTaxRateReconciliationChangeInReservePosition", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESProvisionforIncomeTaxesDetails" ], "xbrltype": "percentItemType" }, "ccmp_EffectiveIncomeTaxRateReconciliationDeductionForForeignDerivedIntangibleIncomePercent": { "auth_ref": [], "calculation": { "http://cabotcmp.com/role/INCOMETAXESProvisionforIncomeTaxesDetails": { "order": 8.0, "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations", "weight": 1.0 } }, "lang": { "en-US": { "role": { "documentation": "Effective Income Tax Rate Reconciliation, Deduction For Foreign Derived Intangible Income, Percent", "label": "Effective Income Tax Rate Reconciliation, Deduction For Foreign Derived Intangible Income, Percent", "negatedLabel": "Foreign derived intangible income" } } }, "localname": "EffectiveIncomeTaxRateReconciliationDeductionForForeignDerivedIntangibleIncomePercent", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESProvisionforIncomeTaxesDetails" ], "xbrltype": "percentItemType" }, "ccmp_EffectiveIncomeTaxRateReconciliationGlobalIntangibleLowTaxedIncomePercent": { "auth_ref": [], "calculation": { "http://cabotcmp.com/role/INCOMETAXESProvisionforIncomeTaxesDetails": { "order": 1.0, "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations", "weight": 1.0 } }, "lang": { "en-US": { "role": { "documentation": "Effective Income Tax Rate Reconciliation, Global Intangible Low Taxed Income, Percent", "label": "Effective Income Tax Rate Reconciliation, Global Intangible Low Taxed Income, Percent", "terseLabel": "Global Intangible Low Taxed Income (\"GILTI\")" } } }, "localname": "EffectiveIncomeTaxRateReconciliationGlobalIntangibleLowTaxedIncomePercent", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESProvisionforIncomeTaxesDetails" ], "xbrltype": "percentItemType" }, "ccmp_ElectronicChemicalsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Electronic Chemicals", "label": "Electronic Chemicals [Member]", "terseLabel": "Electronic Chemicals" } } }, "localname": "ElectronicChemicalsMember", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/SEGMENTREPORTINGRevenuefromExternalCustomersDetails" ], "xbrltype": "domainItemType" }, "ccmp_ElectronicMaterialsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Electronic Materials", "label": "Electronic Materials [Member]", "terseLabel": "Electronic Materials" } } }, "localname": "ElectronicMaterialsMember", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONNarrativeDetails", "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSGoodwillActivityDetails", "http://cabotcmp.com/role/SEGMENTREPORTINGCapitalExpendituresDetails", "http://cabotcmp.com/role/SEGMENTREPORTINGReconciliationfromSegmentAdjustedEBITDADetails", "http://cabotcmp.com/role/SEGMENTREPORTINGRevenuefromExternalCustomersDetails" ], "xbrltype": "domainItemType" }, "ccmp_EnvironmentalExistCostsNumberOfOtherPartiesInAgreement": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Environmental Exist Costs, Number of Other Parties in Agreement", "label": "Environmental Exist Costs, Number of Other Parties in Agreement", "terseLabel": "Number of other parties in agreement" } } }, "localname": "EnvironmentalExistCostsNumberOfOtherPartiesInAgreement", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/COMMITMENTSANDCONTINGENCIESNarrativeDetails" ], "xbrltype": "integerItemType" }, "ccmp_EuropeMiddleEastAndAfricaMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Europe, Middle East, and Africa", "label": "Europe, Middle East, and Africa [Member]", "terseLabel": "Europe, Middle East, and Africa" } } }, "localname": "EuropeMiddleEastAndAfricaMember", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/FINANCIALINFORMATIONBYGEOGRAPHICAREAFinancialInformationbyGeographicAreaDetails" ], "xbrltype": "domainItemType" }, "ccmp_FinancialInformationTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Financial Information", "label": "Financial Information [Text Block]", "terseLabel": "FINANCIAL INFORMATION GEOGRAPHIC AREA" } } }, "localname": "FinancialInformationTextBlock", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/FINANCIALINFORMATIONBYGEOGRAPHICAREA" ], "xbrltype": "textBlockItemType" }, "ccmp_FiniteLivedAndIndefiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTable": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Finite-Lived And Indefinite-Lived Intangible Assets Acquired as Part of Business Combination", "label": "Finite-Lived And Indefinite-Lived Intangible Assets Acquired as Part of Business Combination [Table]", "terseLabel": "Finite-Lived And Indefinite-Lived Intangible Assets Acquired as Part of Business Combination [Table]" } } }, "localname": "FiniteLivedAndIndefiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTable", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONIdentifiableIntangibleAssetsAcquiredDetails" ], "xbrltype": "stringItemType" }, "ccmp_FiniteLivedIntangibleAssetsGrossForeignCurrencyTranslationGainLoss": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Finite Lived Intangible Assets, Gross, Foreign Currency Translation Gain (Loss)", "label": "Finite Lived Intangible Assets, Gross, Foreign Currency Translation Gain (Loss)", "terseLabel": "FX and Other" } } }, "localname": "FiniteLivedIntangibleAssetsGrossForeignCurrencyTranslationGainLoss", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsActivityDetails" ], "xbrltype": "monetaryItemType" }, "ccmp_GoodsAndServicesReceivedNotYetInvoiced": { "auth_ref": [], "calculation": { "http://cabotcmp.com/role/ACCRUEDEXPENSESINCOMETAXESPAYABLEANDOTHERCURRENTLIABILITIESDetails": { "order": 3.0, "parentTag": "us-gaap_OtherLiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The amount of good and services received, but not invoiced by the vendor as of the balance sheet date.", "label": "Goods And Services Received Not Yet Invoiced", "verboseLabel": "Goods and services received, not yet invoiced" } } }, "localname": "GoodsAndServicesReceivedNotYetInvoiced", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/ACCRUEDEXPENSESINCOMETAXESPAYABLEANDOTHERCURRENTLIABILITIESDetails" ], "xbrltype": "monetaryItemType" }, "ccmp_ImpairmentOfIntangibleAssetsGrossFiniteLived": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Impairment of Intangible Assets, Gross, Finite-lived", "label": "Impairment of Intangible Assets, Gross, Finite-lived", "negatedLabel": "Impairment" } } }, "localname": "ImpairmentOfIntangibleAssetsGrossFiniteLived", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsActivityDetails" ], "xbrltype": "monetaryItemType" }, "ccmp_InformationSystemsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Information Systems", "label": "Information Systems [Member]", "terseLabel": "Information systems" } } }, "localname": "InformationSystemsMember", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/PROPERTYPLANTANDEQUIPMENTDetails", "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPropertyPlantandEquipmentDetails" ], "xbrltype": "domainItemType" }, "ccmp_IntelMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Intel", "label": "Intel [Member]", "terseLabel": "Intel" } } }, "localname": "IntelMember", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESConcentrationofRiskDetails" ], "xbrltype": "domainItemType" }, "ccmp_JPMorganChaseBankNAMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "JPMorgan Chase Bank, N.A", "label": "JPMorgan Chase Bank, N.A [Member]", "terseLabel": "JPMorgan Chase Bank, N.A." } } }, "localname": "JPMorganChaseBankNAMember", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/DEBTNarrativeDetails" ], "xbrltype": "domainItemType" }, "ccmp_KMG401kPlanMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "KMG 401(k) Plan", "label": "KMG 401(k) Plan [Member]", "terseLabel": "KMG 401(k) Plan" } } }, "localname": "KMG401kPlanMember", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSNarrativeDetails" ], "xbrltype": "domainItemType" }, "ccmp_KMGBernuthMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "KMG Bernuth", "label": "KMG Bernuth [Member]", "terseLabel": "KMG Bernuth" } } }, "localname": "KMGBernuthMember", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/COMMITMENTSANDCONTINGENCIESNarrativeDetails" ], "xbrltype": "domainItemType" }, "ccmp_KMGMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Represents the aggregation and reporting of combined amounts of individually immaterial business combinations that were completed during the period.", "label": "KMG [Member]", "terseLabel": "KMG" } } }, "localname": "KMGMember", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONConsiderationDetails", "http://cabotcmp.com/role/BUSINESSCOMBINATIONIdentifiableIntangibleAssetsAcquiredDetails", "http://cabotcmp.com/role/BUSINESSCOMBINATIONNarrativeDetails", "http://cabotcmp.com/role/BUSINESSCOMBINATIONProFormaInformationDetails" ], "xbrltype": "domainItemType" }, "ccmp_LIBORFloorMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "LIBOR Floor", "label": "LIBOR Floor [Member]", "terseLabel": "LIBOR floor" } } }, "localname": "LIBORFloorMember", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/DEBTNarrativeDetails" ], "xbrltype": "domainItemType" }, "ccmp_LongLivedAssetImpairmentAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Long-Lived Asset Impairment", "label": "Long-Lived Asset Impairment [Abstract]" } } }, "localname": "LongLivedAssetImpairmentAbstract", "nsuri": "http://cabotcmp.com/20200930", "xbrltype": "stringItemType" }, "ccmp_NonWaterBasedCarrierFluidMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Non-Water Based Carrier Fluid", "label": "Non-Water Based Carrier Fluid [Member]", "terseLabel": "Non-Water Based Carrier Fluid" } } }, "localname": "NonWaterBasedCarrierFluidMember", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/COMMITMENTSANDCONTINGENCIESNarrativeDetails" ], "xbrltype": "domainItemType" }, "ccmp_NumberOfEquityIncentiveAwards": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Number of equity incentive awards under the Equity Incentive Plan.", "label": "Number of equity incentive awards", "terseLabel": "Number of equity incentive awards" } } }, "localname": "NumberOfEquityIncentiveAwards", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSNarrativeDetails" ], "xbrltype": "integerItemType" }, "ccmp_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentIncludingStandardTaxEffect": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Including Standard Tax Effect", "label": "Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Including Standard Tax Effect", "terseLabel": "Net Change" } } }, "localname": "OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentIncludingStandardTaxEffect", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSDetails" ], "xbrltype": "monetaryItemType" }, "ccmp_OtherThanOptionsOrSarsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Refers to stock awards other than options or right to receive cash or stock compensation equal to the appreciation of a predetermined number of the entity's shares, during a predetermined time period.", "label": "Other than Options or SARs [Member]", "terseLabel": "Other than options or SARs" } } }, "localname": "OtherThanOptionsOrSarsMember", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSNarrativeDetails" ], "xbrltype": "domainItemType" }, "ccmp_PaymentsToAcquireBusinessesGrossDebt": { "auth_ref": [], "calculation": { "http://cabotcmp.com/role/BUSINESSCOMBINATIONConsiderationDetails": { "order": 1.0, "parentTag": "us-gaap_PaymentsToAcquireBusinessesGross", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Payments to Acquire Businesses, Gross, Debt", "label": "Payments to Acquire Businesses, Gross, Debt", "terseLabel": "Cash provided to payoff KMG debt" } } }, "localname": "PaymentsToAcquireBusinessesGrossDebt", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONConsiderationDetails" ], "xbrltype": "monetaryItemType" }, "ccmp_PaymentsToAcquireBusinessesGrossEquity": { "auth_ref": [], "calculation": { "http://cabotcmp.com/role/BUSINESSCOMBINATIONConsiderationDetails": { "order": 2.0, "parentTag": "us-gaap_PaymentsToAcquireBusinessesGross", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Payments to Acquire Businesses, Gross, Equity", "label": "Payments to Acquire Businesses, Gross, Equity", "terseLabel": "Total cash consideration paid for KMG outstanding common stock and equity awards" } } }, "localname": "PaymentsToAcquireBusinessesGrossEquity", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONConsiderationDetails" ], "xbrltype": "monetaryItemType" }, "ccmp_PercentageOfAccelerateVestAwardsToNumberOfShares": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Percentage Of Accelerate Vest Awards To Number Of Shares", "label": "Percentage Of Accelerate Vest Awards To Number Of Shares", "terseLabel": "Percentage of accelerate vest awards to number of shares" } } }, "localname": "PercentageOfAccelerateVestAwardsToNumberOfShares", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSNarrativeDetails" ], "xbrltype": "percentItemType" }, "ccmp_PercentageOfInitialPrincipalPaymentAmount": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Percentage Of Initial Principal Payment Amount", "label": "Percentage Of Initial Principal Payment Amount", "terseLabel": "Amortization equal quarterly installments of initial principal" } } }, "localname": "PercentageOfInitialPrincipalPaymentAmount", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/DEBTNarrativeDetails" ], "xbrltype": "percentItemType" }, "ccmp_PerformanceMaterialsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Performance Materials", "label": "Performance Materials [Member]", "terseLabel": "Performance Materials" } } }, "localname": "PerformanceMaterialsMember", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONNarrativeDetails", "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSGoodwillActivityDetails", "http://cabotcmp.com/role/SEGMENTREPORTINGCapitalExpendituresDetails", "http://cabotcmp.com/role/SEGMENTREPORTINGReconciliationfromSegmentAdjustedEBITDADetails", "http://cabotcmp.com/role/SEGMENTREPORTINGRevenuefromExternalCustomersDetails" ], "xbrltype": "domainItemType" }, "ccmp_PeriodOfTerminationToAccelerateVestAwardsToShares": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Period Of Termination To Accelerate Vest Awards To Shares", "label": "Period Of Termination To Accelerate Vest Awards To Shares", "terseLabel": "Period of termination to accelerate vest awards to shares" } } }, "localname": "PeriodOfTerminationToAccelerateVestAwardsToShares", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSNarrativeDetails" ], "xbrltype": "durationItemType" }, "ccmp_PipelineMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Pipeline", "label": "Pipeline [Member]", "terseLabel": "Pipeline", "verboseLabel": "PIM" } } }, "localname": "PipelineMember", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSGoodwillActivityDetails", "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSNarrativeDetails", "http://cabotcmp.com/role/SEGMENTREPORTINGRevenuefromExternalCustomersDetails" ], "xbrltype": "domainItemType" }, "ccmp_ProductTechnologyMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Capitalization of technology either developed or purchased for/about certain company products and/or product manufacturing processes, and Information generally known to only a limited number of the entity's employees, such as a formula, pattern, machine, technology, and production process that may give an entity a competitive advantage.", "label": "Product Technology, Trade Secrets and Know-How [Member]", "terseLabel": "Product technology, trade secrets and know-how" } } }, "localname": "ProductTechnologyMember", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsActivityDetails", "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsDetails" ], "xbrltype": "domainItemType" }, "ccmp_PropertyPlantAndEquipmentUsefulLivesTableTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the useful lives of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.", "label": "Property, Plant and Equipment Useful Lives [Table Text Block]", "terseLabel": "Schedule of property, plant and equipment" } } }, "localname": "PropertyPlantAndEquipmentUsefulLivesTableTextBlock", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESTables" ], "xbrltype": "textBlockItemType" }, "ccmp_QEDAndOtherMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "QED and other", "label": "QED and other [Member]", "terseLabel": "QED" } } }, "localname": "QEDAndOtherMember", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/SEGMENTREPORTINGRevenuefromExternalCustomersDetails" ], "xbrltype": "domainItemType" }, "ccmp_RepurchasesOfCommonStockOtherAtCost": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Equity impact of the cost of common stock repurchased as shares withheld from award recipients to cover payroll taxes on the vesting of shares of restricted stock granted under equity incentive plans.", "label": "Repurchases of common stock - other, at cost", "negatedLabel": "Repurchases of common stock - other" } } }, "localname": "RepurchasesOfCommonStockOtherAtCost", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY" ], "xbrltype": "monetaryItemType" }, "ccmp_SKHynixIncMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "The customer to who good and services were provided to.", "label": "SK Hynix Inc. [Member]", "terseLabel": "SK Hynix Inc." } } }, "localname": "SKHynixIncMember", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESConcentrationofRiskDetails" ], "xbrltype": "domainItemType" }, "ccmp_SamsungMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "The customer to who good and services were provided to.", "label": "Samsung [Member]", "terseLabel": "Samsung Group (Samsung)" } } }, "localname": "SamsungMember", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESConcentrationofRiskDetails" ], "xbrltype": "domainItemType" }, "ccmp_SegmentAdjustedEBITDATableTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Segment Adjusted EBITDA", "label": "Segment Adjusted EBITDA [Table Text Block]", "terseLabel": "Adjusted EBITDA by segment" } } }, "localname": "SegmentAdjustedEBITDATableTextBlock", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/SEGMENTREPORTINGTables" ], "xbrltype": "textBlockItemType" }, "ccmp_SeniorSecuredTermLoanFacilityMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Senior Secured Term Loan Facility", "label": "Senior Secured Term Loan Facility [Member]", "terseLabel": "Senior Secured Term Loan Facility" } } }, "localname": "SeniorSecuredTermLoanFacilityMember", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/DEBTTotalDebtDetails" ], "xbrltype": "domainItemType" }, "ccmp_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardNumberOfVestingInstallments": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Share Based Compensation Arrangement By Share Based Payment Award, Award Number Of Vesting Installments", "label": "Share Based Compensation Arrangement By Share Based Payment Award, Award Number Of Vesting Installments", "terseLabel": "Number of vesting installments" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardNumberOfVestingInstallments", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSNarrativeDetails" ], "xbrltype": "integerItemType" }, "ccmp_ShortTermLeaseAndVariableLeaseCost": { "auth_ref": [], "calculation": { "http://cabotcmp.com/role/LEASESComponentsofLeaseExpenseDetails": { "order": 2.0, "parentTag": "us-gaap_LeaseCost", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Short-term Lease and Variable Lease, Cost", "label": "Short-term Lease and Variable Lease, Cost", "terseLabel": "Variable and short-term costs" } } }, "localname": "ShortTermLeaseAndVariableLeaseCost", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/LEASESComponentsofLeaseExpenseDetails" ], "xbrltype": "monetaryItemType" }, "ccmp_StockIssuedDuringPeriodStockOptionsExercisedShares": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Stock Issued During Period, Stock Options Exercised, Shares", "label": "Stock Issued During Period, Stock Options Exercised, Shares", "terseLabel": "Exercise of stock options (in shares)" } } }, "localname": "StockIssuedDuringPeriodStockOptionsExercisedShares", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY" ], "xbrltype": "sharesItemType" }, "ccmp_TaiwanSemiconductorManufacturingCoTsmcMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "The customer to who good and services were provided to.", "label": "Taiwan Semiconductor Manufacturing Co. (TSMC) [Member]", "terseLabel": "Taiwan Semiconductor Manufacturing Co. (TSMC)" } } }, "localname": "TaiwanSemiconductorManufacturingCoTsmcMember", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESConcentrationofRiskDetails" ], "xbrltype": "domainItemType" }, "ccmp_TaxCutsAndJobsActReclassificationFromAOCIToRetainedEarningsTaxEffectBeforeTax": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Tax Cuts and Jobs Act, Reclassification from AOCI to Retained Earnings, Tax Effect, before Tax", "label": "Tax Cuts and Jobs Act, Reclassification from AOCI to Retained Earnings, Tax Effect, before Tax", "terseLabel": "Effect of the adoption of the stranded tax effect accounting standard" } } }, "localname": "TaxCutsAndJobsActReclassificationFromAOCIToRetainedEarningsTaxEffectBeforeTax", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSDetails" ], "xbrltype": "monetaryItemType" }, "ccmp_TaxCutsAndJobsActReclassificationFromAOCIToRetainedEarningsTaxEffectTax": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Tax Cuts and Jobs Act, Reclassification from AOCI to Retained Earnings, Tax Effect, Tax", "label": "Tax Cuts and Jobs Act, Reclassification from AOCI to Retained Earnings, Tax Effect, Tax", "terseLabel": "Income tax expense" } } }, "localname": "TaxCutsAndJobsActReclassificationFromAOCIToRetainedEarningsTaxEffectTax", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSDetails" ], "xbrltype": "monetaryItemType" }, "ccmp_TradeNamesAllOtherMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Trade Names, All Other", "label": "Trade Names, All Other [Member]", "terseLabel": "Trade name - all other" } } }, "localname": "TradeNamesAllOtherMember", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONIdentifiableIntangibleAssetsAcquiredDetails" ], "xbrltype": "domainItemType" }, "ccmp_TradeNamesFlowchemMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Trade Names, Flowchem", "label": "Trade Names, Flowchem [Member]", "terseLabel": "Trade name - Flowchem" } } }, "localname": "TradeNamesFlowchemMember", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONIdentifiableIntangibleAssetsAcquiredDetails" ], "xbrltype": "domainItemType" }, "ccmp_ValuationAllowancesAndReservesDeductionsAdjustments": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Total of the deductions and adjustment in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, representing receivables written off as uncollectible and portions of the reserves utilized, respectively.", "label": "Valuation Allowances And Reserves, Deductions (Adjustments)", "negatedLabel": "Deductions and Adjustments" } } }, "localname": "ValuationAllowancesAndReservesDeductionsAdjustments", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/SCHEDULEIIVALUATIONANDQUALIFYINGACCOUNTSDetails" ], "xbrltype": "monetaryItemType" }, "ccmp_WoodTreatmentMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Wood Treatment", "label": "Wood Treatment [Member]", "terseLabel": "Wood Treatment" } } }, "localname": "WoodTreatmentMember", "nsuri": "http://cabotcmp.com/20200930", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONNarrativeDetails", "http://cabotcmp.com/role/LONGLIVEDASSETIMPAIRMENTWOODTREATMENTLonglivedAssetImpairmentDetails", "http://cabotcmp.com/role/LONGLIVEDASSETIMPAIRMENTWOODTREATMENTNarrativeDetails", "http://cabotcmp.com/role/PROPERTYPLANTANDEQUIPMENTDetails", "http://cabotcmp.com/role/SEGMENTREPORTINGReconciliationfromSegmentAdjustedEBITDADetails", "http://cabotcmp.com/role/SEGMENTREPORTINGRevenuefromExternalCustomersDetails" ], "xbrltype": "domainItemType" }, "country_CN": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "CHINA", "terseLabel": "China" } } }, "localname": "CN", "nsuri": "http://xbrl.sec.gov/country/2020-01-31", "presentation": [ "http://cabotcmp.com/role/FINANCIALINFORMATIONBYGEOGRAPHICAREARevenuebyMajorForeignCustomersDetails" ], "xbrltype": "domainItemType" }, "country_KP": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "KOREA, DEMOCRATIC PEOPLE'S REPUBLIC OF", "terseLabel": "South Korea" } } }, "localname": "KP", "nsuri": "http://xbrl.sec.gov/country/2020-01-31", "presentation": [ "http://cabotcmp.com/role/FINANCIALINFORMATIONBYGEOGRAPHICAREARevenuebyMajorForeignCustomersDetails" ], "xbrltype": "domainItemType" }, "country_TW": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "TAIWAN, PROVINCE OF CHINA", "terseLabel": "Taiwan" } } }, "localname": "TW", "nsuri": "http://xbrl.sec.gov/country/2020-01-31", "presentation": [ "http://cabotcmp.com/role/FINANCIALINFORMATIONBYGEOGRAPHICAREARevenuebyMajorForeignCustomersDetails" ], "xbrltype": "domainItemType" }, "country_US": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "UNITED STATES", "terseLabel": "North America" } } }, "localname": "US", "nsuri": "http://xbrl.sec.gov/country/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSNarrativeDetails", "http://cabotcmp.com/role/FINANCIALINFORMATIONBYGEOGRAPHICAREAFinancialInformationbyGeographicAreaDetails" ], "xbrltype": "domainItemType" }, "dei_AmendmentFlag": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.", "label": "Amendment Flag", "terseLabel": "Amendment Flag" } } }, "localname": "AmendmentFlag", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CoverPage" ], "xbrltype": "booleanItemType" }, "dei_CityAreaCode": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Area code of city", "label": "City Area Code", "terseLabel": "City Area Code" } } }, "localname": "CityAreaCode", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CoverPage" ], "xbrltype": "normalizedStringItemType" }, "dei_CoverAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Cover page.", "label": "Cover [Abstract]" } } }, "localname": "CoverAbstract", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "xbrltype": "stringItemType" }, "dei_CurrentFiscalYearEndDate": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "End date of current fiscal year in the format --MM-DD.", "label": "Current Fiscal Year End Date", "terseLabel": "Current Fiscal Year End Date" } } }, "localname": "CurrentFiscalYearEndDate", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CoverPage" ], "xbrltype": "gMonthDayItemType" }, "dei_DocumentAnnualReport": { "auth_ref": [ "r773", "r774", "r775" ], "lang": { "en-US": { "role": { "documentation": "Boolean flag that is true only for a form used as an annual report.", "label": "Document Annual Report", "terseLabel": "Document Annual Report" } } }, "localname": "DocumentAnnualReport", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CoverPage" ], "xbrltype": "booleanItemType" }, "dei_DocumentFiscalPeriodFocus": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Fiscal period values are FY, Q1, Q2, and Q3. 1st, 2nd and 3rd quarter 10-Q or 10-QT statements have value Q1, Q2, and Q3 respectively, with 10-K, 10-KT or other fiscal year statements having FY.", "label": "Document Fiscal Period Focus", "terseLabel": "Document Fiscal Period Focus" } } }, "localname": "DocumentFiscalPeriodFocus", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CoverPage" ], "xbrltype": "fiscalPeriodItemType" }, "dei_DocumentFiscalYearFocus": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "This is focus fiscal year of the document report in YYYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006.", "label": "Document Fiscal Year Focus", "terseLabel": "Document Fiscal Year Focus" } } }, "localname": "DocumentFiscalYearFocus", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CoverPage" ], "xbrltype": "gYearItemType" }, "dei_DocumentPeriodEndDate": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented. If there is no historical data in the report, use the filing date. The format of the date is YYYY-MM-DD.", "label": "Document Period End Date", "terseLabel": "Document Period End Date" } } }, "localname": "DocumentPeriodEndDate", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CoverPage" ], "xbrltype": "dateItemType" }, "dei_DocumentTransitionReport": { "auth_ref": [ "r776" ], "lang": { "en-US": { "role": { "documentation": "Boolean flag that is true only for a form used as a transition report.", "label": "Document Transition Report", "terseLabel": "Document Transition Report" } } }, "localname": "DocumentTransitionReport", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CoverPage" ], "xbrltype": "booleanItemType" }, "dei_DocumentType": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.", "label": "Document Type", "terseLabel": "Document Type" } } }, "localname": "DocumentType", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CoverPage" ], "xbrltype": "submissionTypeItemType" }, "dei_DocumentsIncorporatedByReferenceTextBlock": { "auth_ref": [ "r771" ], "lang": { "en-US": { "role": { "documentation": "Documents incorporated by reference.", "label": "Documents Incorporated by Reference [Text Block]", "terseLabel": "Documents Incorporated by Reference" } } }, "localname": "DocumentsIncorporatedByReferenceTextBlock", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CoverPage" ], "xbrltype": "textBlockItemType" }, "dei_EntityAddressAddressLine1": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Address Line 1 such as Attn, Building Name, Street Name", "label": "Entity Address, Address Line One", "terseLabel": "Entity Address, Address Line One" } } }, "localname": "EntityAddressAddressLine1", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CoverPage" ], "xbrltype": "normalizedStringItemType" }, "dei_EntityAddressCityOrTown": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Name of the City or Town", "label": "Entity Address, City or Town", "terseLabel": "Entity Address, City or Town" } } }, "localname": "EntityAddressCityOrTown", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CoverPage" ], "xbrltype": "normalizedStringItemType" }, "dei_EntityAddressPostalZipCode": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Code for the postal or zip code", "label": "Entity Address, Postal Zip Code", "terseLabel": "Entity Address, Postal Zip Code" } } }, "localname": "EntityAddressPostalZipCode", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CoverPage" ], "xbrltype": "normalizedStringItemType" }, "dei_EntityAddressStateOrProvince": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Name of the state or province.", "label": "Entity Address, State or Province", "terseLabel": "Entity Address, State or Province" } } }, "localname": "EntityAddressStateOrProvince", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CoverPage" ], "xbrltype": "stateOrProvinceItemType" }, "dei_EntityCentralIndexKey": { "auth_ref": [ "r777" ], "lang": { "en-US": { "role": { "documentation": "A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.", "label": "Entity Central Index Key", "terseLabel": "Entity Central Index Key" } } }, "localname": "EntityCentralIndexKey", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CoverPage" ], "xbrltype": "centralIndexKeyItemType" }, "dei_EntityCommonStockSharesOutstanding": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument.", "label": "Entity Common Stock, Shares Outstanding", "terseLabel": "Entity Common Stock, Shares Outstanding" } } }, "localname": "EntityCommonStockSharesOutstanding", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CoverPage" ], "xbrltype": "sharesItemType" }, "dei_EntityCurrentReportingStatus": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Indicate 'Yes' or 'No' whether registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. This information should be based on the registrant's current or most recent filing containing the related disclosure.", "label": "Entity Current Reporting Status", "terseLabel": "Entity Current Reporting Status" } } }, "localname": "EntityCurrentReportingStatus", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CoverPage" ], "xbrltype": "yesNoItemType" }, "dei_EntityEmergingGrowthCompany": { "auth_ref": [ "r777" ], "lang": { "en-US": { "role": { "documentation": "Indicate if registrant meets the emerging growth company criteria.", "label": "Entity Emerging Growth Company", "terseLabel": "Entity Emerging Growth Company" } } }, "localname": "EntityEmergingGrowthCompany", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CoverPage" ], "xbrltype": "booleanItemType" }, "dei_EntityFileNumber": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.", "label": "Entity File Number", "terseLabel": "Entity File Number" } } }, "localname": "EntityFileNumber", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CoverPage" ], "xbrltype": "fileNumberItemType" }, "dei_EntityFilerCategory": { "auth_ref": [ "r777" ], "lang": { "en-US": { "role": { "documentation": "Indicate whether the registrant is one of the following: Large Accelerated Filer, Accelerated Filer, Non-accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure.", "label": "Entity Filer Category", "terseLabel": "Entity Filer Category" } } }, "localname": "EntityFilerCategory", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CoverPage" ], "xbrltype": "filerCategoryItemType" }, "dei_EntityIncorporationStateCountryCode": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Two-character EDGAR code representing the state or country of incorporation.", "label": "Entity Incorporation, State or Country Code", "terseLabel": "Entity Incorporation, State or Country Code" } } }, "localname": "EntityIncorporationStateCountryCode", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CoverPage" ], "xbrltype": "edgarStateCountryItemType" }, "dei_EntityInteractiveDataCurrent": { "auth_ref": [ "r778" ], "lang": { "en-US": { "role": { "documentation": "Boolean flag that is true when the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).", "label": "Entity Interactive Data Current", "terseLabel": "Entity Interactive Data Current" } } }, "localname": "EntityInteractiveDataCurrent", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CoverPage" ], "xbrltype": "yesNoItemType" }, "dei_EntityPublicFloat": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to the price at which the common equity was last sold, or the average bid and asked price of such common equity, as of the last business day of the registrant's most recently completed second fiscal quarter.", "label": "Entity Public Float", "terseLabel": "Entity Public Float" } } }, "localname": "EntityPublicFloat", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CoverPage" ], "xbrltype": "monetaryItemType" }, "dei_EntityRegistrantName": { "auth_ref": [ "r777" ], "lang": { "en-US": { "role": { "documentation": "The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.", "label": "Entity Registrant Name", "terseLabel": "Entity Registrant Name" } } }, "localname": "EntityRegistrantName", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CoverPage" ], "xbrltype": "normalizedStringItemType" }, "dei_EntityShellCompany": { "auth_ref": [ "r777" ], "lang": { "en-US": { "role": { "documentation": "Boolean flag that is true when the registrant is a shell company as defined in Rule 12b-2 of the Exchange Act.", "label": "Entity Shell Company", "terseLabel": "Entity Shell Company" } } }, "localname": "EntityShellCompany", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CoverPage" ], "xbrltype": "booleanItemType" }, "dei_EntitySmallBusiness": { "auth_ref": [ "r777" ], "lang": { "en-US": { "role": { "documentation": "Indicates that the company is a Smaller Reporting Company (SRC).", "label": "Entity Small Business", "terseLabel": "Entity Small Business" } } }, "localname": "EntitySmallBusiness", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CoverPage" ], "xbrltype": "booleanItemType" }, "dei_EntityTaxIdentificationNumber": { "auth_ref": [ "r777" ], "lang": { "en-US": { "role": { "documentation": "The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.", "label": "Entity Tax Identification Number", "terseLabel": "Entity Tax Identification Number" } } }, "localname": "EntityTaxIdentificationNumber", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CoverPage" ], "xbrltype": "employerIdItemType" }, "dei_EntityVoluntaryFilers": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Indicate 'Yes' or 'No' if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.", "label": "Entity Voluntary Filers", "terseLabel": "Entity Voluntary Filers" } } }, "localname": "EntityVoluntaryFilers", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CoverPage" ], "xbrltype": "yesNoItemType" }, "dei_EntityWellKnownSeasonedIssuer": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Indicate 'Yes' or 'No' if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Is used on Form Type: 10-K, 10-Q, 8-K, 20-F, 6-K, 10-K/A, 10-Q/A, 20-F/A, 6-K/A, N-CSR, N-Q, N-1A.", "label": "Entity Well-known Seasoned Issuer", "terseLabel": "Entity Well-known Seasoned Issuer" } } }, "localname": "EntityWellKnownSeasonedIssuer", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CoverPage" ], "xbrltype": "yesNoItemType" }, "dei_IcfrAuditorAttestationFlag": { "auth_ref": [ "r773", "r774", "r775" ], "lang": { "en-US": { "role": { "label": "ICFR Auditor Attestation Flag", "terseLabel": "ICFR Auditor Attestation Flag" } } }, "localname": "IcfrAuditorAttestationFlag", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CoverPage" ], "xbrltype": "booleanItemType" }, "dei_LocalPhoneNumber": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Local phone number for entity.", "label": "Local Phone Number", "terseLabel": "Local Phone Number" } } }, "localname": "LocalPhoneNumber", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CoverPage" ], "xbrltype": "normalizedStringItemType" }, "dei_Security12bTitle": { "auth_ref": [ "r770" ], "lang": { "en-US": { "role": { "documentation": "Title of a 12(b) registered security.", "label": "Title of 12(b) Security", "terseLabel": "Title of 12(b) Security" } } }, "localname": "Security12bTitle", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CoverPage" ], "xbrltype": "securityTitleItemType" }, "dei_SecurityExchangeName": { "auth_ref": [ "r772" ], "lang": { "en-US": { "role": { "documentation": "Name of the Exchange on which a security is registered.", "label": "Security Exchange Name", "terseLabel": "Security Exchange Name" } } }, "localname": "SecurityExchangeName", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CoverPage" ], "xbrltype": "edgarExchangeCodeItemType" }, "dei_TradingSymbol": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Trading symbol of an instrument as listed on an exchange.", "label": "Trading Symbol", "terseLabel": "Trading Symbol" } } }, "localname": "TradingSymbol", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CoverPage" ], "xbrltype": "tradingSymbolItemType" }, "srt_AsiaMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Continent of Asia.", "label": "Asia [Member]", "terseLabel": "Asia" } } }, "localname": "AsiaMember", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://cabotcmp.com/role/FINANCIALINFORMATIONBYGEOGRAPHICAREAFinancialInformationbyGeographicAreaDetails" ], "xbrltype": "domainItemType" }, "srt_ConsolidationItemsAxis": { "auth_ref": [ "r211", "r224", "r225", "r226", "r227", "r229", "r231", "r235" ], "lang": { "en-US": { "role": { "documentation": "Information by components, eliminations, non-segment corporate-level activity and reconciling items used in consolidating a parent entity and its subsidiaries or its operating segments.", "label": "Consolidation Items [Axis]", "terseLabel": "Consolidation Items [Axis]" } } }, "localname": "ConsolidationItemsAxis", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SEGMENTREPORTINGCapitalExpendituresDetails", "http://cabotcmp.com/role/SEGMENTREPORTINGReconciliationfromSegmentAdjustedEBITDADetails" ], "xbrltype": "stringItemType" }, "srt_ConsolidationItemsDomain": { "auth_ref": [ "r211", "r224", "r225", "r226", "r227", "r229", "r231", "r235" ], "lang": { "en-US": { "role": { "documentation": "Components, elimination, non-segment corporate-level activity and reconciling items used in consolidating a parent entity and its subsidiaries or its operating segments.", "label": "Consolidation Items [Domain]", "terseLabel": "Consolidation Items [Domain]" } } }, "localname": "ConsolidationItemsDomain", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SEGMENTREPORTINGCapitalExpendituresDetails", "http://cabotcmp.com/role/SEGMENTREPORTINGReconciliationfromSegmentAdjustedEBITDADetails" ], "xbrltype": "domainItemType" }, "srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember": { "auth_ref": [ "r153", "r161", "r259", "r521", "r522", "r523", "r563", "r564" ], "lang": { "en-US": { "role": { "documentation": "Increase (decrease) to financial statements for cumulative-effect adjustment in period of adoption of amendment to accounting standards.", "label": "Cumulative Effect, Period of Adoption, Adjustment [Member]", "terseLabel": "Cumulative Effect, Period of Adoption, Adjustment" } } }, "localname": "CumulativeEffectPeriodOfAdoptionAdjustmentMember", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSDetails", "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY", "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESRecentlyAdoptedAccountingPronouncementsDetails" ], "xbrltype": "domainItemType" }, "srt_CumulativeEffectPeriodOfAdoptionAxis": { "auth_ref": [ "r153", "r161", "r259", "r521", "r522", "r523", "r563", "r564" ], "lang": { "en-US": { "role": { "documentation": "Information by cumulative-effect adjustment to financial statements in period of adoption of amendment to accounting standards.", "label": "Cumulative Effect, Period of Adoption [Axis]", "terseLabel": "Cumulative Effect, Period of Adoption [Axis]" } } }, "localname": "CumulativeEffectPeriodOfAdoptionAxis", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSDetails", "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY", "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESRecentlyAdoptedAccountingPronouncementsDetails" ], "xbrltype": "stringItemType" }, "srt_CumulativeEffectPeriodOfAdoptionDomain": { "auth_ref": [ "r153", "r161", "r259", "r521", "r522", "r523", "r563", "r564" ], "lang": { "en-US": { "role": { "documentation": "Cumulative-effect adjustment to financial statements in period of adoption of amendment to accounting standards.", "label": "Cumulative Effect, Period of Adoption [Domain]", "terseLabel": "Cumulative Effect, Period of Adoption [Domain]" } } }, "localname": "CumulativeEffectPeriodOfAdoptionDomain", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSDetails", "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY", "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESRecentlyAdoptedAccountingPronouncementsDetails" ], "xbrltype": "domainItemType" }, "srt_EuropeMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Continent of Europe.", "label": "Europe [Member]", "terseLabel": "Europe" } } }, "localname": "EuropeMember", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://cabotcmp.com/role/FINANCIALINFORMATIONBYGEOGRAPHICAREAFinancialInformationbyGeographicAreaDetails" ], "xbrltype": "domainItemType" }, "srt_MajorCustomersAxis": { "auth_ref": [ "r242", "r375", "r381", "r740" ], "lang": { "en-US": { "role": { "documentation": "Information by name or description of a single external customer or a group of external customers.", "label": "Customer [Axis]", "terseLabel": "Customer [Axis]" } } }, "localname": "MajorCustomersAxis", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESConcentrationofRiskDetails" ], "xbrltype": "stringItemType" }, "srt_MaximumMember": { "auth_ref": [ "r469", "r479", "r691", "r692", "r693", "r694", "r695", "r696", "r698", "r737", "r741" ], "lang": { "en-US": { "role": { "documentation": "Upper limit of the provided range.", "label": "Maximum [Member]", "terseLabel": "Maximum" } } }, "localname": "MaximumMember", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONIdentifiableIntangibleAssetsAcquiredDetails", "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESGoodwillandOtherIntangibleAssetsDetails", "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPropertyPlantandEquipmentDetails" ], "xbrltype": "domainItemType" }, "srt_MinimumMember": { "auth_ref": [ "r469", "r479", "r691", "r692", "r693", "r694", "r695", "r696", "r698", "r737", "r741" ], "lang": { "en-US": { "role": { "documentation": "Lower limit of the provided range.", "label": "Minimum [Member]", "terseLabel": "Minimum" } } }, "localname": "MinimumMember", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONIdentifiableIntangibleAssetsAcquiredDetails", "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESGoodwillandOtherIntangibleAssetsDetails", "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPropertyPlantandEquipmentDetails" ], "xbrltype": "domainItemType" }, "srt_NameOfMajorCustomerDomain": { "auth_ref": [ "r242", "r375", "r381", "r740" ], "lang": { "en-US": { "role": { "documentation": "Single external customer or group of external customers.", "label": "Customer [Domain]", "terseLabel": "Customer [Domain]" } } }, "localname": "NameOfMajorCustomerDomain", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESConcentrationofRiskDetails" ], "xbrltype": "domainItemType" }, "srt_ProductOrServiceAxis": { "auth_ref": [ "r238", "r375", "r379", "r699", "r736", "r738" ], "lang": { "en-US": { "role": { "documentation": "Information by product and service, or group of similar products and similar services.", "label": "Product and Service [Axis]", "terseLabel": "Product and Service [Axis]" } } }, "localname": "ProductOrServiceAxis", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SEGMENTREPORTINGRevenuefromExternalCustomersDetails" ], "xbrltype": "stringItemType" }, "srt_ProductsAndServicesDomain": { "auth_ref": [ "r238", "r375", "r379", "r699", "r736", "r738" ], "lang": { "en-US": { "role": { "documentation": "Product or service, or a group of similar products or similar services.", "label": "Product and Service [Domain]", "terseLabel": "Product and Service [Domain]" } } }, "localname": "ProductsAndServicesDomain", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SEGMENTREPORTINGRevenuefromExternalCustomersDetails" ], "xbrltype": "domainItemType" }, "srt_RangeAxis": { "auth_ref": [ "r407", "r469", "r479", "r691", "r692", "r693", "r694", "r695", "r696", "r698", "r737", "r741" ], "lang": { "en-US": { "role": { "documentation": "Information by statistical measurement. Includes, but is not limited to, minimum, maximum, weighted average, arithmetic average, and median.", "label": "Statistical Measurement [Axis]", "terseLabel": "Range [Axis]" } } }, "localname": "RangeAxis", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONIdentifiableIntangibleAssetsAcquiredDetails", "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESGoodwillandOtherIntangibleAssetsDetails", "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPropertyPlantandEquipmentDetails" ], "xbrltype": "stringItemType" }, "srt_RangeMember": { "auth_ref": [ "r407", "r469", "r479", "r691", "r692", "r693", "r694", "r695", "r696", "r698", "r737", "r741" ], "lang": { "en-US": { "role": { "documentation": "Statistical measurement. Includes, but is not limited to, minimum, maximum, weighted average, arithmetic average, and median.", "label": "Statistical Measurement [Domain]", "terseLabel": "Range [Domain]" } } }, "localname": "RangeMember", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONIdentifiableIntangibleAssetsAcquiredDetails", "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESGoodwillandOtherIntangibleAssetsDetails", "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPropertyPlantandEquipmentDetails" ], "xbrltype": "domainItemType" }, "srt_ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock": { "auth_ref": [ "r148", "r781" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for valuation and qualifying accounts and reserves.", "label": "SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]", "terseLabel": "SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS" } } }, "localname": "ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SCHEDULEIIVALUATIONANDQUALIFYINGACCOUNTS" ], "xbrltype": "textBlockItemType" }, "srt_SegmentGeographicalDomain": { "auth_ref": [ "r239", "r240", "r375", "r380", "r739", "r760", "r761", "r762", "r763", "r764", "r765", "r766", "r767" ], "lang": { "en-US": { "role": { "documentation": "Geographical area.", "label": "Geographical [Domain]", "terseLabel": "Geographical [Domain]" } } }, "localname": "SegmentGeographicalDomain", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://cabotcmp.com/role/FINANCIALINFORMATIONBYGEOGRAPHICAREAFinancialInformationbyGeographicAreaDetails", "http://cabotcmp.com/role/FINANCIALINFORMATIONBYGEOGRAPHICAREARevenuebyMajorForeignCustomersDetails" ], "xbrltype": "domainItemType" }, "srt_SouthAmericaMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Continent of South America.", "label": "South America [Member]", "terseLabel": "South America" } } }, "localname": "SouthAmericaMember", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://cabotcmp.com/role/FINANCIALINFORMATIONBYGEOGRAPHICAREAFinancialInformationbyGeographicAreaDetails" ], "xbrltype": "domainItemType" }, "srt_StatementGeographicalAxis": { "auth_ref": [ "r239", "r240", "r375", "r380", "r739", "r755", "r760", "r761", "r762", "r763", "r764", "r765", "r766", "r767", "r768", "r779", "r780" ], "lang": { "en-US": { "role": { "documentation": "Information by geographical components.", "label": "Geographical [Axis]", "terseLabel": "Geographical [Axis]" } } }, "localname": "StatementGeographicalAxis", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://cabotcmp.com/role/FINANCIALINFORMATIONBYGEOGRAPHICAREAFinancialInformationbyGeographicAreaDetails", "http://cabotcmp.com/role/FINANCIALINFORMATIONBYGEOGRAPHICAREARevenuebyMajorForeignCustomersDetails" ], "xbrltype": "stringItemType" }, "srt_ValuationAndQualifyingAccountsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]", "terseLabel": "SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]" } } }, "localname": "ValuationAndQualifyingAccountsAbstract", "nsuri": "http://fasb.org/srt/2020-01-31", "xbrltype": "stringItemType" }, "srt_ValuationAndQualifyingAccountsDisclosureLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]", "terseLabel": "SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]" } } }, "localname": "ValuationAndQualifyingAccountsDisclosureLineItems", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SCHEDULEIIVALUATIONANDQUALIFYINGACCOUNTSDetails" ], "xbrltype": "stringItemType" }, "srt_ValuationAndQualifyingAccountsDisclosureTable": { "auth_ref": [ "r148", "r781" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of valuation and qualifying accounts and reserves.", "label": "SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table]", "terseLabel": "SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table]" } } }, "localname": "ValuationAndQualifyingAccountsDisclosureTable", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SCHEDULEIIVALUATIONANDQUALIFYINGACCOUNTSDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AOCIAttributableToParentNetOfTaxRollForward": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.", "label": "AOCI Attributable to Parent, Net of Tax [Roll Forward]", "terseLabel": "AOCI Attributable to Parent, Net of Tax [Roll Forward]" } } }, "localname": "AOCIAttributableToParentNetOfTaxRollForward", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AccountingPoliciesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Accounting Policies [Abstract]", "terseLabel": "Accounting Policies [Abstract]" } } }, "localname": "AccountingPoliciesAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_AccountingStandardsUpdate201602Member": { "auth_ref": [ "r671" ], "lang": { "en-US": { "role": { "documentation": "Accounting Standards Update 2016-02 Leases (Topic 842).", "label": "Accounting Standards Update 2016-02 [Member]", "terseLabel": "Accounting Standards Update 2016-02" } } }, "localname": "AccountingStandardsUpdate201602Member", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESRecentlyAdoptedAccountingPronouncementsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_AccountingStandardsUpdateExtensibleList": { "auth_ref": [ "r154", "r155", "r156", "r157", "r256", "r257", "r258", "r259", "r260", "r261", "r517", "r518", "r519", "r520", "r521", "r522", "r523", "r524", "r563", "r564", "r742", "r743", "r744", "r745", "r746", "r747", "r748", "r749", "r750", "r751", "r752", "r753" ], "lang": { "en-US": { "role": { "documentation": "Indicates amendment to accounting standards.", "label": "Accounting Standards Update [Extensible List]", "terseLabel": "Accounting Standards Update [Extensible List]" } } }, "localname": "AccountingStandardsUpdateExtensibleList", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSDetails", "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITYParenthetical" ], "xbrltype": "extensibleListItemType" }, "us-gaap_AccountsPayableAndAccruedLiabilitiesDisclosureTextBlock": { "auth_ref": [ "r44" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for accounts payable and accrued liabilities at the end of the reporting period.", "label": "Accounts Payable and Accrued Liabilities Disclosure [Text Block]", "verboseLabel": "ACCRUED EXPENSES, INCOME TAXES PAYABLE AND OTHER CURRENT LIABILITIES" } } }, "localname": "AccountsPayableAndAccruedLiabilitiesDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ACCRUEDEXPENSESINCOMETAXESPAYABLEANDOTHERCURRENTLIABILITIES" ], "xbrltype": "textBlockItemType" }, "us-gaap_AccountsPayableCurrent": { "auth_ref": [ "r43" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS": { "order": 2.0, "parentTag": "us-gaap_LiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).", "label": "Accounts Payable, Current", "verboseLabel": "Accounts payable" } } }, "localname": "AccountsPayableCurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccountsReceivableMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Due from customers or clients for goods or services that have been delivered or sold.", "label": "Accounts Receivable [Member]", "terseLabel": "Net accounts receivable" } } }, "localname": "AccountsReceivableMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESConcentrationofRiskDetails" ], "xbrltype": "domainItemType" }, "us-gaap_AccountsReceivableNetCurrent": { "auth_ref": [ "r5", "r22", "r244", "r245" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS": { "order": 2.0, "parentTag": "us-gaap_AssetsCurrent", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.", "label": "Accounts Receivable, after Allowance for Credit Loss, Current", "terseLabel": "Accounts receivable, less allowance for doubtful accounts of $583 at September\u00a030, 2020, and $2,377 at September\u00a030, 2019" } } }, "localname": "AccountsReceivableNetCurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrent": { "auth_ref": [ "r11", "r48", "r530" ], "calculation": { "http://cabotcmp.com/role/ACCRUEDEXPENSESINCOMETAXESPAYABLEANDOTHERCURRENTLIABILITIESDetails": { "order": 8.0, "parentTag": "us-gaap_OtherLiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Carrying value as of the balance sheet date of obligations incurred and payable for real and property taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).", "label": "Accrual for Taxes Other than Income Taxes, Current", "terseLabel": "Taxes, other than income taxes" } } }, "localname": "AccrualForTaxesOtherThanIncomeTaxesCurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ACCRUEDEXPENSESINCOMETAXESPAYABLEANDOTHERCURRENTLIABILITIESDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccruedIncomeTaxesCurrent": { "auth_ref": [ "r18", "r708", "r723" ], "calculation": { "http://cabotcmp.com/role/ACCRUEDEXPENSESINCOMETAXESPAYABLEANDOTHERCURRENTLIABILITIESDetails": { "order": 6.0, "parentTag": "us-gaap_OtherLiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all currently due domestic and foreign income tax obligations.", "label": "Accrued Income Taxes, Current", "terseLabel": "Income taxes payable" } } }, "localname": "AccruedIncomeTaxesCurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ACCRUEDEXPENSESINCOMETAXESPAYABLEANDOTHERCURRENTLIABILITIESDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember": { "auth_ref": [ "r64", "r70", "r71", "r602" ], "lang": { "en-US": { "role": { "documentation": "Accumulated other comprehensive (income) loss related to defined benefit plans attributable to the parent.", "label": "Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]", "terseLabel": "Pension and other postretirement, net of tax" } } }, "localname": "AccumulatedDefinedBenefitPlansAdjustmentMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSDetails" ], "xbrltype": "domainItemType" }, "us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment": { "auth_ref": [ "r41", "r303" ], "calculation": { "http://cabotcmp.com/role/PROPERTYPLANTANDEQUIPMENTDetails": { "order": 2.0, "parentTag": "us-gaap_PropertyPlantAndEquipmentNet", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.", "label": "Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment", "negatedLabel": "Less: accumulated depreciation" } } }, "localname": "AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/PROPERTYPLANTANDEQUIPMENTDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember": { "auth_ref": [ "r63", "r70", "r71", "r601" ], "lang": { "en-US": { "role": { "documentation": "Accumulated other comprehensive income (loss) resulting from gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges, attributable to the parent.", "label": "Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]", "terseLabel": "Interest rate swap contract" } } }, "localname": "AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSDetails", "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSEffectofDerivativeInstrumentsonAccumulatedOtherComprehensiveIncomeDetails" ], "xbrltype": "domainItemType" }, "us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Accumulated Other Comprehensive Income (Loss) [Line Items]", "terseLabel": "Accumulated Other Comprehensive Income (Loss) [Line Items]" } } }, "localname": "AccumulatedOtherComprehensiveIncomeLossLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax": { "auth_ref": [ "r25", "r67", "r69", "r70", "r725", "r749", "r753" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS": { "order": 2.0, "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.", "label": "Accumulated Other Comprehensive Income (Loss), Net of Tax", "terseLabel": "Accumulated other comprehensive loss" } } }, "localname": "AccumulatedOtherComprehensiveIncomeLossNetOfTax", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTaxAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]", "terseLabel": "Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]" } } }, "localname": "AccumulatedOtherComprehensiveIncomeLossNetOfTaxAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_AccumulatedOtherComprehensiveIncomeLossTable": { "auth_ref": [ "r653", "r654", "r655", "r656", "r657", "r659" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about components of accumulated other comprehensive income (loss).", "label": "Accumulated Other Comprehensive Income (Loss) [Table]", "terseLabel": "Accumulated Other Comprehensive Income (Loss) [Table]" } } }, "localname": "AccumulatedOtherComprehensiveIncomeLossTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AccumulatedOtherComprehensiveIncomeMember": { "auth_ref": [ "r66", "r70", "r71", "r150", "r151", "r152", "r602", "r744", "r745" ], "lang": { "en-US": { "role": { "documentation": "Accumulated increase (decrease) in equity from transactions and other events and circumstances from non-owner sources, attributable to the parent. Excludes net income (loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners.", "label": "AOCI Attributable to Parent [Member]", "terseLabel": "Accumulated Other Comprehensive Income (Loss)" } } }, "localname": "AccumulatedOtherComprehensiveIncomeMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSDetails", "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY" ], "xbrltype": "domainItemType" }, "us-gaap_AccumulatedTranslationAdjustmentMember": { "auth_ref": [ "r62", "r70", "r71", "r602", "r654", "r655", "r656", "r657", "r659" ], "lang": { "en-US": { "role": { "documentation": "Accumulated other comprehensive income (loss) resulting from foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature, attributable to the parent.", "label": "Accumulated Foreign Currency Adjustment Attributable to Parent [Member]", "terseLabel": "Foreign currency translation adjustment" } } }, "localname": "AccumulatedTranslationAdjustmentMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSDetails" ], "xbrltype": "domainItemType" }, "us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Acquired Finite-Lived Intangible Assets [Line Items]", "terseLabel": "Acquired Finite-Lived Intangible Assets [Line Items]" } } }, "localname": "AcquiredFiniteLivedIntangibleAssetsLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONIdentifiableIntangibleAssetsAcquiredDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife": { "auth_ref": [ "r285" ], "lang": { "en-US": { "role": { "documentation": "Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.", "label": "Acquired Finite-lived Intangible Assets, Weighted Average Useful Life", "terseLabel": "Estimated useful life" } } }, "localname": "AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONIdentifiableIntangibleAssetsAcquiredDetails" ], "xbrltype": "durationItemType" }, "us-gaap_AcquiredIndefiniteLivedIntangibleAssetsLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Acquired Indefinite-lived Intangible Assets [Line Items]", "terseLabel": "Acquired Indefinite-lived Intangible Assets [Line Items]" } } }, "localname": "AcquiredIndefiniteLivedIntangibleAssetsLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONIdentifiableIntangibleAssetsAcquiredDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AcquisitionRelatedCostsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Category of acquisition-related costs allocated to (included in) reported pro forma earnings (supplemental pro forma information).", "label": "Acquisition-related Costs [Member]", "terseLabel": "Acquisition-related costs" } } }, "localname": "AcquisitionRelatedCostsMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONNarrativeDetails", "http://cabotcmp.com/role/BUSINESSCOMBINATIONProFormaInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_AdditionalPaidInCapitalCommonStock": { "auth_ref": [ "r23" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS": { "order": 4.0, "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital.", "label": "Additional Paid in Capital, Common Stock", "terseLabel": "Capital in excess of par value of common stock" } } }, "localname": "AdditionalPaidInCapitalCommonStock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS" ], "xbrltype": "monetaryItemType" }, "us-gaap_AdditionalPaidInCapitalMember": { "auth_ref": [ "r150", "r151", "r152", "r521", "r522", "r523" ], "lang": { "en-US": { "role": { "documentation": "Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders.", "label": "Additional Paid-in Capital [Member]", "terseLabel": "Capital In Excess of Par" } } }, "localname": "AdditionalPaidInCapitalMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY" ], "xbrltype": "domainItemType" }, "us-gaap_AdjustmentsForNewAccountingPronouncementsAxis": { "auth_ref": [ "r154", "r155", "r156", "r157", "r256", "r257", "r258", "r259", "r260", "r261", "r517", "r518", "r519", "r520", "r521", "r522", "r523", "r524", "r561", "r562", "r563", "r564", "r701", "r702", "r703", "r742", "r743", "r744", "r745", "r746", "r747", "r748", "r749", "r750", "r751", "r752", "r753" ], "lang": { "en-US": { "role": { "documentation": "Information by amendment to accounting standards.", "label": "Accounting Standards Update [Axis]", "terseLabel": "Accounting Standards Update [Axis]" } } }, "localname": "AdjustmentsForNewAccountingPronouncementsAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESRecentlyAdoptedAccountingPronouncementsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue": { "auth_ref": [ "r481", "r483", "r527", "r528" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement.", "label": "APIC, Share-based Payment Arrangement, Increase for Cost Recognition", "verboseLabel": "Share-based compensation expense" } } }, "localname": "AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY" ], "xbrltype": "monetaryItemType" }, "us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]", "terseLabel": "Adjustments to reconcile Net income to net cash provided by operating activities:" } } }, "localname": "AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "stringItemType" }, "us-gaap_AllocatedShareBasedCompensationExpense": { "auth_ref": [ "r483", "r513", "r526" ], "calculation": { "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSShareBasedCompensationExpenseDetails": { "order": 1.0, "parentTag": "us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.", "label": "Share-based Payment Arrangement, Expense", "terseLabel": "Share-based compensation expense", "verboseLabel": "Gross share-based compensation expense" } } }, "localname": "AllocatedShareBasedCompensationExpense", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSScheduleofTotalGrossSharebasedCompensationExpenseDetails", "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSShareBasedCompensationExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax": { "auth_ref": [], "calculation": { "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSShareBasedCompensationExpenseDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount, after tax, of expense for award under share-based payment arrangement.", "label": "Share-based Payment Arrangement, Expense, after Tax", "totalLabel": "Total share-based compensation expense, net of tax" } } }, "localname": "AllocatedShareBasedCompensationExpenseNetOfTax", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSShareBasedCompensationExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AllowanceForCreditLossMember": { "auth_ref": [ "r147" ], "lang": { "en-US": { "role": { "documentation": "Allowance for credit loss from right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.", "label": "SEC Schedule, 12-09, Allowance, Credit Loss [Member]", "terseLabel": "Allowance for doubtful accounts" } } }, "localname": "AllowanceForCreditLossMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SCHEDULEIIVALUATIONANDQUALIFYINGACCOUNTSDetails" ], "xbrltype": "domainItemType" }, "us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent": { "auth_ref": [ "r29", "r249", "r262" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of allowance for credit loss on accounts receivable, classified as current.", "label": "Accounts Receivable, Allowance for Credit Loss, Current", "periodEndLabel": "Balance, end of period", "periodStartLabel": "Balance, beginning of period", "terseLabel": "Allowance for doubtful accounts" } } }, "localname": "AllowanceForDoubtfulAccountsReceivableCurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETSParenthetical", "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESAccountsReceivableandAllowanceforDoubtfulAccountsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AllowanceForDoubtfulAccountsReceivableRollforward": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.", "label": "Accounts Receivable, Allowance for Credit Loss [Roll Forward]", "terseLabel": "Allowance for doubtful accounts [Roll Forward]" } } }, "localname": "AllowanceForDoubtfulAccountsReceivableRollforward", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESAccountsReceivableandAllowanceforDoubtfulAccountsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs": { "auth_ref": [ "r264" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of direct write-downs of accounts receivable charged against the allowance.", "label": "Accounts Receivable, Allowance for Credit Loss, Writeoff", "terseLabel": "Amount of charge (benefit) to expense" } } }, "localname": "AllowanceForDoubtfulAccountsReceivableWriteOffs", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESAccountsReceivableandAllowanceforDoubtfulAccountsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AmortizationOfAcquisitionCosts": { "auth_ref": [ "r118", "r282" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 16.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The amount of expense recognized in the current period that reflects the allocation of capitalized costs associated with acquisition of business. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.", "label": "Amortization of Acquisition Costs", "terseLabel": "Non-cash charge on inventory step up of acquired inventory sold", "verboseLabel": "Charge for fair value write-up of acquired inventory sold" } } }, "localname": "AmortizationOfAcquisitionCosts", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONNarrativeDetails", "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS", "http://cabotcmp.com/role/SEGMENTREPORTINGReconciliationfromSegmentAdjustedEBITDADetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AmortizationOfFinancingCosts": { "auth_ref": [ "r86", "r118", "r663" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 5.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of amortization expense attributable to debt issuance costs.", "label": "Amortization of Debt Issuance Costs", "terseLabel": "Amortization of debt issuance costs" } } }, "localname": "AmortizationOfFinancingCosts", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_AmortizationOfIntangibleAssets": { "auth_ref": [ "r118", "r282", "r292" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.", "label": "Amortization of Intangible Assets", "terseLabel": "Amortization expense" } } }, "localname": "AmortizationOfIntangibleAssets", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount": { "auth_ref": [ "r182" ], "lang": { "en-US": { "role": { "documentation": "Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.", "label": "Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount", "terseLabel": "Outstanding stock options excluded from calculation of diluted earnings per share (in shares)" } } }, "localname": "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EARNINGSPERSHAREDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis": { "auth_ref": [ "r182" ], "lang": { "en-US": { "role": { "documentation": "Information by type of antidilutive security.", "label": "Antidilutive Securities [Axis]", "terseLabel": "Antidilutive Securities [Axis]" } } }, "localname": "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EARNINGSPERSHAREDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]", "terseLabel": "Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]" } } }, "localname": "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EARNINGSPERSHAREDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AntidilutiveSecuritiesNameDomain": { "auth_ref": [ "r182" ], "lang": { "en-US": { "role": { "documentation": "Incremental common shares attributable to securities that were not included in diluted earnings per share (EPS) because to do so would increase EPS amounts or decrease loss per share amounts for the period presented.", "label": "Antidilutive Securities, Name [Domain]", "terseLabel": "Antidilutive Securities, Name [Domain]" } } }, "localname": "AntidilutiveSecuritiesNameDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EARNINGSPERSHAREDetails" ], "xbrltype": "domainItemType" }, "us-gaap_AssetImpairmentCharges": { "auth_ref": [ "r118", "r300" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFINCOME": { "order": 3.0, "parentTag": "us-gaap_OperatingExpenses", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.", "label": "Asset Impairment Charges", "terseLabel": "Impairment expense", "verboseLabel": "Asset impairment charges" } } }, "localname": "AssetImpairmentCharges", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFINCOME", "http://cabotcmp.com/role/PROPERTYPLANTANDEQUIPMENTDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AssetRetirementObligation": { "auth_ref": [ "r313" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.", "label": "Asset Retirement Obligation", "periodEndLabel": "Ending balance", "periodStartLabel": "Beginning balance" } } }, "localname": "AssetRetirementObligation", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ASSETRETIREMENTOBLIGATIONSDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AssetRetirementObligationAccretionExpense": { "auth_ref": [ "r312", "r316" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 8.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of accretion expense recognized during the period that is associated with an asset retirement obligation. Accretion expense measures and incorporates changes due to the passage of time into the carrying amount of the liability.", "label": "Asset Retirement Obligation, Accretion Expense", "terseLabel": "Accretion on Asset Retirement Obligations" } } }, "localname": "AssetRetirementObligationAccretionExpense", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ASSETRETIREMENTOBLIGATIONSDetails", "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_AssetRetirementObligationDisclosureAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Asset Retirement Obligation Disclosure [Abstract]" } } }, "localname": "AssetRetirementObligationDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_AssetRetirementObligationDisclosureTextBlock": { "auth_ref": [ "r319" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for an asset retirement obligation and the associated long-lived asset. An asset retirement obligation is a legal obligation associated with the disposal or retirement from service of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.", "label": "Asset Retirement Obligation Disclosure [Text Block]", "terseLabel": "ASSET RETIREMENT OBLIGATIONS" } } }, "localname": "AssetRetirementObligationDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ASSETRETIREMENTOBLIGATIONS" ], "xbrltype": "textBlockItemType" }, "us-gaap_AssetRetirementObligationLiabilitiesIncurred": { "auth_ref": [ "r314" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of asset retirement obligations incurred during the period.", "label": "Asset Retirement Obligation, Liabilities Incurred", "terseLabel": "Purchase Accounting in connection with the Acquisition" } } }, "localname": "AssetRetirementObligationLiabilitiesIncurred", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ASSETRETIREMENTOBLIGATIONSDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AssetRetirementObligationLiabilitiesSettled": { "auth_ref": [ "r315" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of asset retirement obligations settled, or otherwise disposed of, during the period. This may include asset retirement obligations transferred to third parties associated with the sale of a long-lived asset.", "label": "Asset Retirement Obligation, Liabilities Settled", "negatedLabel": "Liabilities settled" } } }, "localname": "AssetRetirementObligationLiabilitiesSettled", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ASSETRETIREMENTOBLIGATIONSDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AssetRetirementObligationRevisionOfEstimate": { "auth_ref": [ "r311", "r317" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of increase (decrease) in the asset retirement obligation from changes in the amount or timing of the estimated cash flows associated with the settlement of the obligation.", "label": "Asset Retirement Obligation, Revision of Estimate", "terseLabel": "Accretion of discount" } } }, "localname": "AssetRetirementObligationRevisionOfEstimate", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ASSETRETIREMENTOBLIGATIONSDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AssetRetirementObligationRollForwardAnalysisRollForward": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.", "label": "Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]", "terseLabel": "Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]" } } }, "localname": "AssetRetirementObligationRollForwardAnalysisRollForward", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ASSETRETIREMENTOBLIGATIONSDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AssetRetirementObligationsPolicy": { "auth_ref": [ "r128", "r318" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for legal obligation associated with retirement of long-lived asset that results from acquisition, construction, or development or from normal operation of long-lived asset. Excludes environmental remediation liability from improper or other-than-normal operation of long-lived asset, obligation arising in connection with leased property that meets definition of lease payments or variable lease payments and from plan to sell or otherwise dispose of a long-lived asset.", "label": "Asset Retirement Obligation [Policy Text Block]", "terseLabel": "Asset Retirement Obligation" } } }, "localname": "AssetRetirementObligationsPolicy", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_Assets": { "auth_ref": [ "r130", "r219", "r226", "r233", "r255", "r598", "r603", "r649", "r706", "r722" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.", "label": "Assets", "totalLabel": "Total assets" } } }, "localname": "Assets", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS" ], "xbrltype": "monetaryItemType" }, "us-gaap_AssetsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Assets [Abstract]", "terseLabel": "ASSETS", "verboseLabel": "ASSETS" } } }, "localname": "AssetsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS", "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETSParenthetical" ], "xbrltype": "stringItemType" }, "us-gaap_AssetsCurrent": { "auth_ref": [ "r6", "r7", "r57", "r130", "r255", "r598", "r603", "r649" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS": { "order": 1.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.", "label": "Assets, Current", "totalLabel": "Total current assets" } } }, "localname": "AssetsCurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS" ], "xbrltype": "monetaryItemType" }, "us-gaap_AssetsCurrentAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Assets, Current [Abstract]", "terseLabel": "Current assets:" } } }, "localname": "AssetsCurrentAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS", "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETSParenthetical" ], "xbrltype": "stringItemType" }, "us-gaap_AssetsFairValueDisclosureAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Assets, Fair Value Disclosure [Abstract]", "terseLabel": "Assets:" } } }, "localname": "AssetsFairValueDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/FAIRVALUEOFFINANCIALINSTRUMENTSFairValueDisclosureDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AwardTypeAxis": { "auth_ref": [ "r484", "r515" ], "lang": { "en-US": { "role": { "documentation": "Information by type of award under share-based payment arrangement.", "label": "Award Type [Axis]", "terseLabel": "Award Type [Axis]" } } }, "localname": "AwardTypeAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY", "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSNarrativeDetails", "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSRestrictedStockandRestrictedStockUnitsDetails", "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSScheduleofTotalGrossSharebasedCompensationExpenseDetails", "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSStockOptionActivityDetails", "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSWeightedAverageAssumptionsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_BalanceSheetLocationAxis": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Information by location on balance sheet (statement of financial position).", "label": "Balance Sheet Location [Axis]", "terseLabel": "Balance Sheet Location [Axis]" } } }, "localname": "BalanceSheetLocationAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSFairValueofDerivativeInstrumentsintheConsolidatedBalanceSheetDetails" ], "xbrltype": "stringItemType" }, "us-gaap_BalanceSheetLocationDomain": { "auth_ref": [ "r612", "r617" ], "lang": { "en-US": { "role": { "documentation": "Location in the balance sheet (statement of financial position).", "label": "Balance Sheet Location [Domain]", "terseLabel": "Balance Sheet Location [Domain]" } } }, "localname": "BalanceSheetLocationDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSFairValueofDerivativeInstrumentsintheConsolidatedBalanceSheetDetails" ], "xbrltype": "domainItemType" }, "us-gaap_BaseRateMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Minimum rate investor will accept.", "label": "Base Rate [Member]", "terseLabel": "Base rate" } } }, "localname": "BaseRateMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTNarrativeDetails" ], "xbrltype": "domainItemType" }, "us-gaap_BuildingMember": { "auth_ref": [ "r302" ], "lang": { "en-US": { "role": { "documentation": "Facility held for productive use including, but not limited to, office, production, storage and distribution facilities.", "label": "Building [Member]", "terseLabel": "Buildings" } } }, "localname": "BuildingMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/PROPERTYPLANTANDEQUIPMENTDetails", "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPropertyPlantandEquipmentDetails" ], "xbrltype": "domainItemType" }, "us-gaap_BusinessAcquisitionAcquireeDomain": { "auth_ref": [ "r462", "r475" ], "lang": { "en-US": { "role": { "documentation": "Identification of the acquiree in a material business combination (or series of individually immaterial business combinations), which may include the name or other type of identification of the acquiree.", "label": "Business Acquisition, Acquiree [Domain]", "terseLabel": "Business Acquisition, Acquiree [Domain]" } } }, "localname": "BusinessAcquisitionAcquireeDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONConsiderationDetails", "http://cabotcmp.com/role/BUSINESSCOMBINATIONIdentifiableIntangibleAssetsAcquiredDetails", "http://cabotcmp.com/role/BUSINESSCOMBINATIONNarrativeDetails", "http://cabotcmp.com/role/BUSINESSCOMBINATIONProFormaInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_BusinessAcquisitionAxis": { "auth_ref": [ "r462", "r475", "r582", "r583" ], "lang": { "en-US": { "role": { "documentation": "Information by business combination or series of individually immaterial business combinations.", "label": "Business Acquisition [Axis]", "terseLabel": "Business Acquisition [Axis]" } } }, "localname": "BusinessAcquisitionAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONConsiderationDetails", "http://cabotcmp.com/role/BUSINESSCOMBINATIONIdentifiableIntangibleAssetsAcquiredDetails", "http://cabotcmp.com/role/BUSINESSCOMBINATIONNarrativeDetails", "http://cabotcmp.com/role/BUSINESSCOMBINATIONProFormaInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_BusinessAcquisitionLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Business Acquisition [Line Items]", "terseLabel": "Business Acquisition [Line Items]" } } }, "localname": "BusinessAcquisitionLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONConsiderationDetails", "http://cabotcmp.com/role/BUSINESSCOMBINATIONNarrativeDetails", "http://cabotcmp.com/role/BUSINESSCOMBINATIONProFormaInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_BusinessAcquisitionProFormaEarningsPerShareBasic": { "auth_ref": [ "r579", "r580" ], "lang": { "en-US": { "role": { "documentation": "The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.", "label": "Business Acquisition, Pro Forma Earnings Per Share, Basic", "terseLabel": "Earnings per share - basic (in dollars per share)" } } }, "localname": "BusinessAcquisitionProFormaEarningsPerShareBasic", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONProFormaInformationDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted": { "auth_ref": [ "r579", "r580" ], "lang": { "en-US": { "role": { "documentation": "The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.", "label": "Business Acquisition, Pro Forma Earnings Per Share, Diluted", "terseLabel": "Earnings per share - diluted (in dollars per share)" } } }, "localname": "BusinessAcquisitionProFormaEarningsPerShareDiluted", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONProFormaInformationDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_BusinessAcquisitionProFormaInformationAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Business Acquisition, Pro Forma Information [Abstract]", "terseLabel": "Business Acquisition, Pro Forma Information [Abstract]" } } }, "localname": "BusinessAcquisitionProFormaInformationAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONProFormaInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_BusinessAcquisitionProFormaInformationTextBlock": { "auth_ref": [ "r579", "r580" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of pro forma results of operations for a material business acquisition or series of individually immaterial business acquisitions that are material in the aggregate.", "label": "Business Acquisition, Pro Forma Information [Table Text Block]", "terseLabel": "Supplemental pro forma information" } } }, "localname": "BusinessAcquisitionProFormaInformationTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss": { "auth_ref": [ "r579", "r580" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.", "label": "Business Acquisition, Pro Forma Net Income (Loss)", "terseLabel": "Net income" } } }, "localname": "BusinessAcquisitionsProFormaNetIncomeLoss", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONProFormaInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessAcquisitionsProFormaRevenue": { "auth_ref": [ "r579", "r580" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.", "label": "Business Acquisition, Pro Forma Revenue", "terseLabel": "Revenue" } } }, "localname": "BusinessAcquisitionsProFormaRevenue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONProFormaInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationAcquisitionRelatedCosts": { "auth_ref": [ "r577" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.", "label": "Business Combination, Acquisition Related Costs", "terseLabel": "Non-recurring transaction cost" } } }, "localname": "BusinessCombinationAcquisitionRelatedCosts", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationConsiderationTransferred1": { "auth_ref": [ "r589", "r590", "r591" ], "calculation": { "http://cabotcmp.com/role/BUSINESSCOMBINATIONConsiderationDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.", "label": "Business Combination, Consideration Transferred", "terseLabel": "Consideration transferred", "totalLabel": "Total consideration transferred" } } }, "localname": "BusinessCombinationConsiderationTransferred1", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONConsiderationDetails", "http://cabotcmp.com/role/BUSINESSCOMBINATIONNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationConsiderationTransferredAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Business Combination, Consideration Transferred [Abstract]", "terseLabel": "Business Combination, Consideration Transferred [Abstract]" } } }, "localname": "BusinessCombinationConsiderationTransferredAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONConsiderationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable": { "auth_ref": [ "r589", "r590" ], "calculation": { "http://cabotcmp.com/role/BUSINESSCOMBINATIONConsiderationDetails": { "order": 1.0, "parentTag": "us-gaap_BusinessCombinationConsiderationTransferred1", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.", "label": "Business Combination, Consideration Transferred, Equity Interests Issued and Issuable", "terseLabel": "Fair value of CMC common stock issued for KMG outstanding common stock and equity awards" } } }, "localname": "BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONConsiderationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationDisclosureTextBlock": { "auth_ref": [ "r593" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).", "label": "Business Combination Disclosure [Text Block]", "terseLabel": "BUSINESS COMBINATION" } } }, "localname": "BusinessCombinationDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATION" ], "xbrltype": "textBlockItemType" }, "us-gaap_BusinessCombinationIntegrationRelatedCosts": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Costs incurred to effect a business combination which have been expensed during the period. Such costs could include business integration costs, systems integration and conversion costs, and severance and other employee-related costs.", "label": "Business Combination, Integration Related Costs", "terseLabel": "Acquisition and integration-related expense" } } }, "localname": "BusinessCombinationIntegrationRelatedCosts", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SEGMENTREPORTINGReconciliationfromSegmentAdjustedEBITDADetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents": { "auth_ref": [ "r584" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.", "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents", "verboseLabel": "Cash acquired from acquisition" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill": { "auth_ref": [ "r584" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of intangible assets, excluding goodwill, acquired at the acquisition date.", "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill", "terseLabel": "Fair value, intangible assets" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONIdentifiableIntangibleAssetsAcquiredDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeFairValue1": { "auth_ref": [ "r578" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Fair value at acquisition-date of the equity interest in the acquiree held by the acquirer, immediately before the acquisition date for businesses combined in stages.", "label": "Business Combination, Step Acquisition, Equity Interest in Acquiree, Fair Value", "terseLabel": "Equity consideration related to the acquisition of KMG Chemicals, Inc" } } }, "localname": "BusinessCombinationStepAcquisitionEquityInterestInAcquireeFairValue1", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Business Combinations [Abstract]", "terseLabel": "Business Combinations [Abstract]" } } }, "localname": "BusinessCombinationsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock": { "auth_ref": [ "r2", "r149", "r205" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for the business description and basis of presentation concepts. Business description describes the nature and type of organization including but not limited to organizational structure as may be applicable to holding companies, parent and subsidiary relationships, business divisions, business units, business segments, affiliates and information about significant ownership of the reporting entity. Basis of presentation describes the underlying basis used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS).", "label": "Business Description and Basis of Presentation [Text Block]", "verboseLabel": "BACKGROUND AND BASIS OF PRESENTATION" } } }, "localname": "BusinessDescriptionAndBasisOfPresentationTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BACKGROUNDANDBASISOFPRESENTATION" ], "xbrltype": "textBlockItemType" }, "us-gaap_CapitalExpendituresIncurredButNotYetPaid": { "auth_ref": [ "r123", "r124", "r125" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Future cash outflow to pay for purchases of fixed assets that have occurred.", "label": "Capital Expenditures Incurred but Not yet Paid", "terseLabel": "Purchases of property, plant and equipment in accrued liabilities and accounts payable at the end of the period" } } }, "localname": "CapitalExpendituresIncurredButNotYetPaid", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashAndCashEquivalentsAtCarryingValue": { "auth_ref": [ "r3", "r38", "r120" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS": { "order": 1.0, "parentTag": "us-gaap_AssetsCurrent", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.", "label": "Cash and Cash Equivalents, at Carrying Value", "verboseLabel": "Cash and cash equivalents" } } }, "localname": "CashAndCashEquivalentsAtCarryingValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashAndCashEquivalentsFairValueDisclosure": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.", "label": "Cash and Cash Equivalents, Fair Value Disclosure", "terseLabel": "Cash and cash equivalents" } } }, "localname": "CashAndCashEquivalentsFairValueDisclosure", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/FAIRVALUEOFFINANCIALINSTRUMENTSFairValueDisclosureDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashAndCashEquivalentsPolicyTextBlock": { "auth_ref": [ "r14", "r121", "r128" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for cash and cash equivalents, including the policy for determining which items are treated as cash equivalents. Other information that may be disclosed includes (1) the nature of any restrictions on the entity's use of its cash and cash equivalents, (2) whether the entity's cash and cash equivalents are insured or expose the entity to credit risk, (3) the classification of any negative balance accounts (overdrafts), and (4) the carrying basis of cash equivalents (for example, at cost) and whether the carrying amount of cash equivalents approximates fair value.", "label": "Cash and Cash Equivalents, Policy [Policy Text Block]", "terseLabel": "Cash, Cash Equivalents and Short-Term Investments" } } }, "localname": "CashAndCashEquivalentsPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents": { "auth_ref": [ "r113", "r120", "r126" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.", "label": "Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents", "periodEndLabel": "Cash and cash equivalents at end of year", "periodStartLabel": "Cash and cash equivalents at beginning of year" } } }, "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect": { "auth_ref": [ "r113", "r652" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of increase (decrease) in cash, cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including effect from exchange rate change. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.", "label": "Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect", "totalLabel": "Increase (decrease) in cash and cash equivalents" } } }, "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_CommitmentsAndContingencies": { "auth_ref": [ "r52", "r332", "r711", "r729" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS": { "order": 3.0, "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur.", "label": "Commitments and Contingencies", "terseLabel": "Commitments and contingencies (Note 20)" } } }, "localname": "CommitmentsAndContingencies", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS" ], "xbrltype": "monetaryItemType" }, "us-gaap_CommitmentsAndContingenciesDisclosureAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Commitments and Contingencies Disclosure [Abstract]", "terseLabel": "Commitments and Contingencies Disclosure [Abstract]" } } }, "localname": "CommitmentsAndContingenciesDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_CommitmentsAndContingenciesDisclosureTextBlock": { "auth_ref": [ "r326", "r328", "r331", "r336" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for commitments and contingencies.", "label": "Commitments and Contingencies Disclosure [Text Block]", "verboseLabel": "COMMITMENTS AND CONTINGENCIES" } } }, "localname": "CommitmentsAndContingenciesDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/COMMITMENTSANDCONTINGENCIES" ], "xbrltype": "textBlockItemType" }, "us-gaap_CommonStockDividendsPerShareDeclared": { "auth_ref": [ "r350" ], "lang": { "en-US": { "role": { "documentation": "Aggregate dividends declared during the period for each share of common stock outstanding.", "label": "Common Stock, Dividends, Per Share, Declared", "terseLabel": "Dividends (in dollars per share)" } } }, "localname": "CommonStockDividendsPerShareDeclared", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITYParenthetical" ], "xbrltype": "perShareItemType" }, "us-gaap_CommonStockMember": { "auth_ref": [ "r150", "r151" ], "lang": { "en-US": { "role": { "documentation": "Stock that is subordinate to all other stock of the issuer.", "label": "Common Stock [Member]", "terseLabel": "Common Stock" } } }, "localname": "CommonStockMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY" ], "xbrltype": "domainItemType" }, "us-gaap_CommonStockParOrStatedValuePerShare": { "auth_ref": [ "r21" ], "lang": { "en-US": { "role": { "documentation": "Face amount or stated value per share of common stock.", "label": "Common Stock, Par or Stated Value Per Share", "terseLabel": "Common stock, par value (in dollars per share)" } } }, "localname": "CommonStockParOrStatedValuePerShare", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETSParenthetical" ], "xbrltype": "perShareItemType" }, "us-gaap_CommonStockSharesAuthorized": { "auth_ref": [ "r21" ], "lang": { "en-US": { "role": { "documentation": "The maximum number of common shares permitted to be issued by an entity's charter and bylaws.", "label": "Common Stock, Shares Authorized", "terseLabel": "Common stock, authorized (in shares)" } } }, "localname": "CommonStockSharesAuthorized", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETSParenthetical" ], "xbrltype": "sharesItemType" }, "us-gaap_CommonStockSharesIssued": { "auth_ref": [ "r21" ], "lang": { "en-US": { "role": { "documentation": "Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.", "label": "Common Stock, Shares, Issued", "terseLabel": "Common stock, issued (in shares)" } } }, "localname": "CommonStockSharesIssued", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETSParenthetical" ], "xbrltype": "sharesItemType" }, "us-gaap_CommonStockSharesOutstanding": { "auth_ref": [ "r21", "r345" ], "lang": { "en-US": { "role": { "documentation": "Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.", "label": "Common Stock, Shares, Outstanding", "periodEndLabel": "Ending Balance (in shares)", "periodStartLabel": "Beginning Balance (in shares)" } } }, "localname": "CommonStockSharesOutstanding", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY" ], "xbrltype": "sharesItemType" }, "us-gaap_CommonStockValue": { "auth_ref": [ "r21" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS": { "order": 5.0, "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.", "label": "Common Stock, Value, Issued", "terseLabel": "Common Stock Authorized: 200,000 shares, $0.001 par value; Issued: 39,914 shares at September\u00a030, 2020 and 39,592 shares at September\u00a030, 2019" } } }, "localname": "CommonStockValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS" ], "xbrltype": "monetaryItemType" }, "us-gaap_CompensationAndRetirementDisclosureAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Retirement Benefits [Abstract]", "terseLabel": "Defined Benefit Plan [Abstract]" } } }, "localname": "CompensationAndRetirementDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_ComponentsOfDeferredTaxAssetsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Components of Deferred Tax Assets [Abstract]", "terseLabel": "Deferred tax assets:" } } }, "localname": "ComponentsOfDeferredTaxAssetsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESComponentsofNetDeferredTaxAssetsandLiabilitiesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ComponentsOfDeferredTaxAssetsAndLiabilitiesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Components of Deferred Tax Assets and Liabilities [Abstract]", "terseLabel": "Components of Deferred Tax Assets and Liabilities [Abstract]" } } }, "localname": "ComponentsOfDeferredTaxAssetsAndLiabilitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESComponentsofNetDeferredTaxAssetsandLiabilitiesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ComponentsOfDeferredTaxLiabilitiesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Components of Deferred Tax Liabilities [Abstract]", "terseLabel": "Deferred tax liabilities:" } } }, "localname": "ComponentsOfDeferredTaxLiabilitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESComponentsofNetDeferredTaxAssetsandLiabilitiesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ComprehensiveIncomeNetOfTax": { "auth_ref": [ "r74", "r76", "r77", "r83", "r714", "r732" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMELOSS": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.", "label": "Comprehensive Income (Loss), Net of Tax, Attributable to Parent", "totalLabel": "Comprehensive income" } } }, "localname": "ComprehensiveIncomeNetOfTax", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMELOSS" ], "xbrltype": "monetaryItemType" }, "us-gaap_ComprehensiveIncomeNoteTextBlock": { "auth_ref": [ "r82", "r95", "r713", "r731" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income.", "label": "Comprehensive Income (Loss) Note [Text Block]", "terseLabel": "ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)" } } }, "localname": "ComprehensiveIncomeNoteTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSS" ], "xbrltype": "textBlockItemType" }, "us-gaap_ConcentrationRiskBenchmarkDomain": { "auth_ref": [ "r199", "r200", "r242", "r646", "r647" ], "lang": { "en-US": { "role": { "documentation": "The denominator in a calculation of a disclosed concentration risk percentage.", "label": "Concentration Risk Benchmark [Domain]", "terseLabel": "Concentration Risk Benchmark [Domain]" } } }, "localname": "ConcentrationRiskBenchmarkDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/FINANCIALINFORMATIONBYGEOGRAPHICAREARevenuebyMajorForeignCustomersDetails", "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESConcentrationofRiskDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ConcentrationRiskByBenchmarkAxis": { "auth_ref": [ "r199", "r200", "r242", "r646", "r647", "r754" ], "lang": { "en-US": { "role": { "documentation": "Information by benchmark of concentration risk.", "label": "Concentration Risk Benchmark [Axis]", "terseLabel": "Concentration Risk Benchmark [Axis]" } } }, "localname": "ConcentrationRiskByBenchmarkAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/FINANCIALINFORMATIONBYGEOGRAPHICAREARevenuebyMajorForeignCustomersDetails", "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESConcentrationofRiskDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ConcentrationRiskByTypeAxis": { "auth_ref": [ "r199", "r200", "r242", "r646", "r647", "r754" ], "lang": { "en-US": { "role": { "documentation": "Information by type of concentration risk, for example, but not limited to, asset, liability, net assets, geographic, customer, employees, supplier, lender.", "label": "Concentration Risk Type [Axis]", "terseLabel": "Concentration Risk Type [Axis]" } } }, "localname": "ConcentrationRiskByTypeAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/FINANCIALINFORMATIONBYGEOGRAPHICAREARevenuebyMajorForeignCustomersDetails", "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESConcentrationofRiskDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ConcentrationRiskCreditRisk": { "auth_ref": [ "r194", "r720" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for credit risk.", "label": "Concentration Risk, Credit Risk, Policy [Policy Text Block]", "terseLabel": "Concentration of Credit Risk" } } }, "localname": "ConcentrationRiskCreditRisk", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_ConcentrationRiskLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Concentration Risk [Line Items]", "terseLabel": "Concentration Risk [Line Items]" } } }, "localname": "ConcentrationRiskLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESConcentrationofRiskDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ConcentrationRiskPercentage1": { "auth_ref": [ "r199", "r200", "r242", "r646", "r647" ], "lang": { "en-US": { "role": { "documentation": "For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the \"benchmark\" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.", "label": "Concentration Risk, Percentage", "terseLabel": "Concentration risk, percentage" } } }, "localname": "ConcentrationRiskPercentage1", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESConcentrationofRiskDetails" ], "xbrltype": "percentItemType" }, "us-gaap_ConcentrationRiskTable": { "auth_ref": [ "r197", "r199", "r200", "r201", "r646", "r648" ], "lang": { "en-US": { "role": { "documentation": "Describes the nature of a concentration, a benchmark to which it is compared, and the percentage that the risk is to the benchmark.", "label": "Concentration Risk [Table]", "terseLabel": "Concentration Risk [Table]" } } }, "localname": "ConcentrationRiskTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESConcentrationofRiskDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ConcentrationRiskTypeDomain": { "auth_ref": [ "r199", "r200", "r242", "r646", "r647" ], "lang": { "en-US": { "role": { "documentation": "For an entity that discloses a concentration risk as a percentage of some financial balance or benchmark, identifies the type (for example, asset, liability, net assets, geographic, customer, employees, supplier, lender) of the concentration.", "label": "Concentration Risk Type [Domain]", "terseLabel": "Concentration Risk Type [Domain]" } } }, "localname": "ConcentrationRiskTypeDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/FINANCIALINFORMATIONBYGEOGRAPHICAREARevenuebyMajorForeignCustomersDetails", "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESConcentrationofRiskDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ConsolidationPolicyTextBlock": { "auth_ref": [ "r128", "r600" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy regarding (1) the principles it follows in consolidating or combining the separate financial statements, including the principles followed in determining the inclusion or exclusion of subsidiaries or other entities in the consolidated or combined financial statements and (2) its treatment of interests (for example, common stock, a partnership interest or other means of exerting influence) in other entities, for example consolidation or use of the equity or cost methods of accounting. The accounting policy may also address the accounting treatment for intercompany accounts and transactions, noncontrolling interest, and the income statement treatment in consolidation for issuances of stock by a subsidiary.", "label": "Consolidation, Policy [Policy Text Block]", "terseLabel": "Principles of Consolidation" } } }, "localname": "ConsolidationPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_ConstructionInProgressMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service.", "label": "Construction in Progress [Member]", "terseLabel": "Construction in progress" } } }, "localname": "ConstructionInProgressMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/PROPERTYPLANTANDEQUIPMENTDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock": { "auth_ref": [ "r356" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability.", "label": "Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]", "terseLabel": "Reconciliation of contract liability balances" } } }, "localname": "ContractWithCustomerAssetAndLiabilityTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/REVENUEFROMCONTRACTSWITHCUSTOMERSTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ContractWithCustomerAssetNetCurrent": { "auth_ref": [ "r353", "r355", "r376" ], "calculation": { "http://cabotcmp.com/role/OTHERLONGTERMASSETSDetails": { "order": 4.0, "parentTag": "us-gaap_OtherAssetsNoncurrent", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as current.", "label": "Contract with Customer, Asset, after Allowance for Credit Loss, Current", "terseLabel": "Long-term vendor contract assets" } } }, "localname": "ContractWithCustomerAssetNetCurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/OTHERLONGTERMASSETSDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ContractWithCustomerLiability": { "auth_ref": [ "r353", "r354", "r376" ], "calculation": { "http://cabotcmp.com/role/ACCRUEDEXPENSESINCOMETAXESPAYABLEANDOTHERCURRENTLIABILITIESDetails": { "order": 7.0, "parentTag": "us-gaap_OtherLiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.", "label": "Contract with Customer, Liability", "terseLabel": "Contract liabilities (current)" } } }, "localname": "ContractWithCustomerLiability", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ACCRUEDEXPENSESINCOMETAXESPAYABLEANDOTHERCURRENTLIABILITIESDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ContractWithCustomerLiabilityAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Contract with Customer, Liability [Abstract]", "terseLabel": "Contract with Customer, Liability [Abstract]" } } }, "localname": "ContractWithCustomerLiabilityAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/REVENUEFROMCONTRACTSWITHCUSTOMERSReconciliationofContractBalancesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ContractWithCustomerLiabilityCurrent": { "auth_ref": [ "r353", "r354", "r376" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.", "label": "Contract with Customer, Liability, Current", "terseLabel": "Contract liabilities (current)" } } }, "localname": "ContractWithCustomerLiabilityCurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/REVENUEFROMCONTRACTSWITHCUSTOMERSReconciliationofContractBalancesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ContractWithCustomerLiabilityNoncurrent": { "auth_ref": [ "r353", "r354", "r376" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as noncurrent.", "label": "Contract with Customer, Liability, Noncurrent", "terseLabel": "Contract liabilities (noncurrent)" } } }, "localname": "ContractWithCustomerLiabilityNoncurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/REVENUEFROMCONTRACTSWITHCUSTOMERSReconciliationofContractBalancesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ContractWithCustomerLiabilityRevenueRecognized": { "auth_ref": [ "r377" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.", "label": "Contract with Customer, Liability, Revenue Recognized", "terseLabel": "Revenue recognized from contract with customers" } } }, "localname": "ContractWithCustomerLiabilityRevenueRecognized", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/REVENUEFROMCONTRACTSWITHCUSTOMERSNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ContractualObligation": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments.", "label": "Contractual Obligation", "terseLabel": "Purchase obligation" } } }, "localname": "ContractualObligation", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/COMMITMENTSANDCONTINGENCIESNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CorporateNonSegmentMember": { "auth_ref": [ "r224", "r225", "r226", "r227", "r229", "r235", "r237" ], "lang": { "en-US": { "role": { "documentation": "Corporate headquarters or functional department that may not earn revenues or may earn revenues that are only incidental to the activities of the entity and is not considered an operating segment.", "label": "Corporate, Non-Segment [Member]", "terseLabel": "Unallocated corporate" } } }, "localname": "CorporateNonSegmentMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SEGMENTREPORTINGCapitalExpendituresDetails", "http://cabotcmp.com/role/SEGMENTREPORTINGReconciliationfromSegmentAdjustedEBITDADetails" ], "xbrltype": "domainItemType" }, "us-gaap_CostOfGoodsAndServicesSold": { "auth_ref": [ "r90", "r699" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFINCOME": { "order": 2.0, "parentTag": "us-gaap_GrossProfit", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.", "label": "Cost of Goods and Services Sold", "terseLabel": "Cost of sales" } } }, "localname": "CostOfGoodsAndServicesSold", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFINCOME", "http://cabotcmp.com/role/SELECTEDQUARTERLYOPERATINGRESULTSDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CostOfSalesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Primary financial statement caption encompassing cost of sales.", "label": "Cost of Sales [Member]", "terseLabel": "Cost of sales" } } }, "localname": "CostOfSalesMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSShareBasedCompensationExpenseDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CreditConcentrationRiskMember": { "auth_ref": [ "r648" ], "lang": { "en-US": { "role": { "documentation": "Reflects the percentage that a specified receivable or amount at risk from a counterparty under a contractual arrangement is to a specified benchmark, such as total receivables, net revenues, pretax results. Risk is the materially adverse effects of loss attributable to (a) the failure to collect a significant receivable from a major customer or group of homogeneous accounts, or (b) a failure by a counterparty to perform under terms of a contractual arrangement.", "label": "Credit Concentration Risk [Member]", "terseLabel": "Credit concentration risk" } } }, "localname": "CreditConcentrationRiskMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESConcentrationofRiskDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CreditFacilityAxis": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Information by type of credit facility. Credit facilities provide capital to borrowers without the need to structure a loan for each borrowing.", "label": "Credit Facility [Axis]", "terseLabel": "Credit Facility [Axis]" } } }, "localname": "CreditFacilityAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTNarrativeDetails", "http://cabotcmp.com/role/DEBTTotalDebtDetails" ], "xbrltype": "stringItemType" }, "us-gaap_CreditFacilityDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Type of credit facility. Credit facilities provide capital to borrowers without the need to structure a loan for each borrowing.", "label": "Credit Facility [Domain]", "terseLabel": "Credit Facility [Domain]" } } }, "localname": "CreditFacilityDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTNarrativeDetails", "http://cabotcmp.com/role/DEBTTotalDebtDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CurrentFederalStateAndLocalTaxExpenseBenefit": { "auth_ref": [], "calculation": { "http://cabotcmp.com/role/INCOMETAXESIncomeBeforeIncomeTaxesandTaxesonIncomeDetails": { "order": 1.0, "parentTag": "us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of current state, local, and federal tax expense (benefit) pertaining to income (loss) from continuing operations.", "label": "Current Federal, State and Local, Tax Expense (Benefit)", "verboseLabel": "Current" } } }, "localname": "CurrentFederalStateAndLocalTaxExpenseBenefit", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESIncomeBeforeIncomeTaxesandTaxesonIncomeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CurrentForeignTaxExpenseBenefit": { "auth_ref": [ "r137", "r558" ], "calculation": { "http://cabotcmp.com/role/INCOMETAXESIncomeBeforeIncomeTaxesandTaxesonIncomeDetails": { "order": 1.0, "parentTag": "us-gaap_ForeignIncomeTaxExpenseBenefitContinuingOperations", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of current foreign income tax expense (benefit) pertaining to income (loss) from continuing operations.", "label": "Current Foreign Tax Expense (Benefit)", "terseLabel": "Current" } } }, "localname": "CurrentForeignTaxExpenseBenefit", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESIncomeBeforeIncomeTaxesandTaxesonIncomeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CustomerConcentrationRiskMember": { "auth_ref": [ "r198", "r242" ], "lang": { "en-US": { "role": { "documentation": "Reflects the percentage that revenues in the period from one or more significant customers is to net revenues, as defined by the entity, such as total net revenues, product line revenues, segment revenues. The risk is the materially adverse effects of loss of a significant customer.", "label": "Customer Concentration Risk [Member]", "terseLabel": "Customer concentration risk" } } }, "localname": "CustomerConcentrationRiskMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/FINANCIALINFORMATIONBYGEOGRAPHICAREARevenuebyMajorForeignCustomersDetails", "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESConcentrationofRiskDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CustomerRelationshipsMember": { "auth_ref": [ "r587" ], "lang": { "en-US": { "role": { "documentation": "Customer relationship that exists between an entity and its customer, for example, but not limited to, tenant relationships.", "label": "Customer Relationships [Member]", "terseLabel": "Customer relationships, distribution rights, and other" } } }, "localname": "CustomerRelationshipsMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/LONGLIVEDASSETIMPAIRMENTWOODTREATMENTLonglivedAssetImpairmentDetails" ], "xbrltype": "domainItemType" }, "us-gaap_DebtCurrent": { "auth_ref": [ "r46" ], "calculation": { "http://cabotcmp.com/role/DEBTTotalDebtDetails_1": { "order": 2.0, "parentTag": "us-gaap_LongTermDebt", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer.", "label": "Debt, Current", "negatedTerseLabel": "Less: Current maturities and short-term debt" } } }, "localname": "DebtCurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTTotalDebtDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtDisclosureAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Debt Disclosure [Abstract]", "terseLabel": "Debt Disclosure [Abstract]" } } }, "localname": "DebtDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_DebtDisclosureTextBlock": { "auth_ref": [ "r344" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.", "label": "Debt Disclosure [Text Block]", "terseLabel": "DEBT" } } }, "localname": "DebtDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBT" ], "xbrltype": "textBlockItemType" }, "us-gaap_DebtInstrumentAxis": { "auth_ref": [ "r17", "r18", "r19", "r707", "r709", "r721" ], "lang": { "en-US": { "role": { "documentation": "Information by type of debt instrument, including, but not limited to, draws against credit facilities.", "label": "Debt Instrument [Axis]", "terseLabel": "Debt Instrument [Axis]" } } }, "localname": "DebtInstrumentAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTNarrativeDetails", "http://cabotcmp.com/role/DEBTTotalDebtDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DebtInstrumentBasisSpreadOnVariableRate1": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Percentage points added to the reference rate to compute the variable rate on the debt instrument.", "label": "Debt Instrument, Basis Spread on Variable Rate", "terseLabel": "Basis spread on variable rate" } } }, "localname": "DebtInstrumentBasisSpreadOnVariableRate1", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTNarrativeDetails", "http://cabotcmp.com/role/DEBTTotalDebtDetails" ], "xbrltype": "percentItemType" }, "us-gaap_DebtInstrumentCarryingAmount": { "auth_ref": [ "r19", "r341", "r709", "r721" ], "calculation": { "http://cabotcmp.com/role/DEBTTotalDebtDetails": { "order": 2.0, "parentTag": "us-gaap_LongTermDebt", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.", "label": "Long-term Debt, Gross", "terseLabel": "Long-term debt" } } }, "localname": "DebtInstrumentCarryingAmount", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTTotalDebtDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtInstrumentFaceAmount": { "auth_ref": [ "r662", "r664" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Face (par) amount of debt instrument at time of issuance.", "label": "Debt Instrument, Face Amount", "verboseLabel": "Face amount of debt" } } }, "localname": "DebtInstrumentFaceAmount", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtInstrumentFairValue": { "auth_ref": [ "r645" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.", "label": "Debt Instrument, Fair Value Disclosure", "terseLabel": "Debt, fair value" } } }, "localname": "DebtInstrumentFairValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtInstrumentLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Debt Instrument [Line Items]", "terseLabel": "Debt Instrument [Line Items]" } } }, "localname": "DebtInstrumentLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTNarrativeDetails", "http://cabotcmp.com/role/DEBTPrincipalRepaymentsDetails", "http://cabotcmp.com/role/DEBTTotalDebtDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DebtInstrumentNameDomain": { "auth_ref": [ "r50" ], "lang": { "en-US": { "role": { "documentation": "The name for the particular debt instrument or borrowing that distinguishes it from other debt instruments or borrowings, including draws against credit facilities.", "label": "Debt Instrument, Name [Domain]", "terseLabel": "Debt Instrument, Name [Domain]" } } }, "localname": "DebtInstrumentNameDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTNarrativeDetails", "http://cabotcmp.com/role/DEBTTotalDebtDetails" ], "xbrltype": "domainItemType" }, "us-gaap_DebtInstrumentTable": { "auth_ref": [ "r50", "r133", "r346", "r347", "r348", "r349", "r661", "r662", "r664", "r719" ], "lang": { "en-US": { "role": { "documentation": "A table or schedule providing information pertaining to long-term debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the company, if longer.", "label": "Schedule of Long-term Debt Instruments [Table]", "terseLabel": "Schedule of Long-term Debt Instruments [Table]" } } }, "localname": "DebtInstrumentTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTNarrativeDetails", "http://cabotcmp.com/role/DEBTPrincipalRepaymentsDetails", "http://cabotcmp.com/role/DEBTTotalDebtDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet": { "auth_ref": [ "r342", "r663" ], "calculation": { "http://cabotcmp.com/role/DEBTTotalDebtDetails": { "order": 1.0, "parentTag": "us-gaap_LongTermDebt", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of unamortized debt discount (premium) and debt issuance costs.", "label": "Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net", "negatedTerseLabel": "Less: Unamortized debt issuance costs" } } }, "localname": "DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTTotalDebtDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]", "terseLabel": "Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]" } } }, "localname": "DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_DeferredFederalStateAndLocalTaxExpenseBenefit": { "auth_ref": [], "calculation": { "http://cabotcmp.com/role/INCOMETAXESIncomeBeforeIncomeTaxesandTaxesonIncomeDetails": { "order": 2.0, "parentTag": "us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of deferred state, local, and federal tax expense (benefit) pertaining to income (loss) from continuing operations.", "label": "Deferred Federal, State and Local, Tax Expense (Benefit)", "verboseLabel": "Deferred" } } }, "localname": "DeferredFederalStateAndLocalTaxExpenseBenefit", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESIncomeBeforeIncomeTaxesandTaxesonIncomeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredFinanceCostsNoncurrentGross": { "auth_ref": [ "r42", "r663" ], "calculation": { "http://cabotcmp.com/role/OTHERLONGTERMASSETSDetails": { "order": 5.0, "parentTag": "us-gaap_OtherAssetsNoncurrent", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount, before accumulated amortization, of debt issuance costs classified as noncurrent. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.", "label": "Debt Issuance Cost, Gross, Noncurrent", "terseLabel": "Prepaid unamortized debt issuance costs - revolver" } } }, "localname": "DeferredFinanceCostsNoncurrentGross", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/OTHERLONGTERMASSETSDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredForeignIncomeTaxExpenseBenefit": { "auth_ref": [ "r132", "r559", "r567" ], "calculation": { "http://cabotcmp.com/role/INCOMETAXESIncomeBeforeIncomeTaxesandTaxesonIncomeDetails": { "order": 2.0, "parentTag": "us-gaap_ForeignIncomeTaxExpenseBenefitContinuingOperations", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of deferred foreign income tax expense (benefit) pertaining to income (loss) from continuing operations.", "label": "Deferred Foreign Income Tax Expense (Benefit)", "terseLabel": "Deferred" } } }, "localname": "DeferredForeignIncomeTaxExpenseBenefit", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESIncomeBeforeIncomeTaxesandTaxesonIncomeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredIncomeTaxAssetsNet": { "auth_ref": [ "r535", "r536" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS": { "order": 6.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, with jurisdictional netting.", "label": "Deferred Income Tax Assets, Net", "verboseLabel": "Deferred income taxes" } } }, "localname": "DeferredIncomeTaxAssetsNet", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredIncomeTaxExpenseBenefit": { "auth_ref": [ "r118", "r132", "r559", "r567", "r568", "r569" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 13.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.", "label": "Deferred Income Tax Expense (Benefit)", "terseLabel": "Deferred income tax expense (benefit)" } } }, "localname": "DeferredIncomeTaxExpenseBenefit", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredIncomeTaxLiabilitiesNet": { "auth_ref": [ "r535", "r536" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS": { "order": 3.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences with jurisdictional netting.", "label": "Deferred Income Tax Liabilities, Net", "terseLabel": "Deferred income taxes" } } }, "localname": "DeferredIncomeTaxLiabilitiesNet", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsHedgingTransactions": { "auth_ref": [ "r556", "r557" ], "calculation": { "http://cabotcmp.com/role/INCOMETAXESComponentsofNetDeferredTaxAssetsandLiabilitiesDetails": { "order": 6.0, "parentTag": "us-gaap_DeferredTaxAssetsNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from hedging transactions.", "label": "Deferred Tax Assets, Hedging Transactions", "terseLabel": "Interest rate swap" } } }, "localname": "DeferredTaxAssetsHedgingTransactions", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESComponentsofNetDeferredTaxAssetsandLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsInventory": { "auth_ref": [ "r556", "r557" ], "calculation": { "http://cabotcmp.com/role/INCOMETAXESComponentsofNetDeferredTaxAssetsandLiabilitiesDetails": { "order": 2.0, "parentTag": "us-gaap_DeferredTaxAssetsNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from inventory.", "label": "Deferred Tax Assets, Inventory", "terseLabel": "Inventory" } } }, "localname": "DeferredTaxAssetsInventory", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESComponentsofNetDeferredTaxAssetsandLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsNet": { "auth_ref": [ "r551" ], "calculation": { "http://cabotcmp.com/role/INCOMETAXESComponentsofNetDeferredTaxAssetsandLiabilitiesDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.", "label": "Deferred Tax Assets, Net of Valuation Allowance", "totalLabel": "Total deferred tax assets" } } }, "localname": "DeferredTaxAssetsNet", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESComponentsofNetDeferredTaxAssetsandLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsOperatingLossCarryforwards": { "auth_ref": [ "r556", "r557" ], "calculation": { "http://cabotcmp.com/role/INCOMETAXESComponentsofNetDeferredTaxAssetsandLiabilitiesDetails": { "order": 5.0, "parentTag": "us-gaap_DeferredTaxAssetsNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.", "label": "Deferred Tax Assets, Operating Loss Carryforwards", "terseLabel": "Credit and other carryforwards" } } }, "localname": "DeferredTaxAssetsOperatingLossCarryforwards", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESComponentsofNetDeferredTaxAssetsandLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsOther": { "auth_ref": [ "r556", "r557" ], "calculation": { "http://cabotcmp.com/role/INCOMETAXESComponentsofNetDeferredTaxAssetsandLiabilitiesDetails": { "order": 7.0, "parentTag": "us-gaap_DeferredTaxAssetsNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other.", "label": "Deferred Tax Assets, Other", "verboseLabel": "Other" } } }, "localname": "DeferredTaxAssetsOther", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESComponentsofNetDeferredTaxAssetsandLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits": { "auth_ref": [ "r556", "r557" ], "calculation": { "http://cabotcmp.com/role/INCOMETAXESComponentsofNetDeferredTaxAssetsandLiabilitiesDetails": { "order": 1.0, "parentTag": "us-gaap_DeferredTaxAssetsNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences from employee benefits, classified as other.", "label": "Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Benefits", "terseLabel": "Employee benefits" } } }, "localname": "DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESComponentsofNetDeferredTaxAssetsandLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost": { "auth_ref": [ "r556", "r557" ], "calculation": { "http://cabotcmp.com/role/INCOMETAXESComponentsofNetDeferredTaxAssetsandLiabilitiesDetails": { "order": 4.0, "parentTag": "us-gaap_DeferredTaxAssetsNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation.", "label": "Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost", "terseLabel": "Share-based compensation expense" } } }, "localname": "DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESComponentsofNetDeferredTaxAssetsandLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts": { "auth_ref": [ "r556", "r557" ], "calculation": { "http://cabotcmp.com/role/INCOMETAXESComponentsofNetDeferredTaxAssetsandLiabilitiesDetails": { "order": 3.0, "parentTag": "us-gaap_DeferredTaxAssetsNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from the allowance for doubtful accounts.", "label": "Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Allowance for Doubtful Accounts", "terseLabel": "Accrued expenses" } } }, "localname": "DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESComponentsofNetDeferredTaxAssetsandLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsValuationAllowance": { "auth_ref": [ "r550" ], "calculation": { "http://cabotcmp.com/role/INCOMETAXESComponentsofNetDeferredTaxAssetsandLiabilitiesDetails": { "order": 8.0, "parentTag": "us-gaap_DeferredTaxAssetsNet", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.", "label": "Deferred Tax Assets, Valuation Allowance", "negatedLabel": "Valuation allowance" } } }, "localname": "DeferredTaxAssetsValuationAllowance", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESComponentsofNetDeferredTaxAssetsandLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxLiabilities": { "auth_ref": [ "r536", "r551" ], "calculation": { "http://cabotcmp.com/role/INCOMETAXESComponentsofNetDeferredTaxAssetsandLiabilitiesDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting.", "label": "Deferred Tax Liabilities, Net", "totalLabel": "Total deferred tax liabilities" } } }, "localname": "DeferredTaxLiabilities", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESComponentsofNetDeferredTaxAssetsandLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxLiabilitiesOther": { "auth_ref": [ "r556", "r557" ], "calculation": { "http://cabotcmp.com/role/INCOMETAXESComponentsofNetDeferredTaxAssetsandLiabilitiesDetails": { "order": 3.0, "parentTag": "us-gaap_DeferredTaxLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of deferred tax liability attributable to taxable temporary differences classified as other.", "label": "Deferred Tax Liabilities, Other", "terseLabel": "Other" } } }, "localname": "DeferredTaxLiabilitiesOther", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESComponentsofNetDeferredTaxAssetsandLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment": { "auth_ref": [ "r556", "r557" ], "calculation": { "http://cabotcmp.com/role/INCOMETAXESComponentsofNetDeferredTaxAssetsandLiabilitiesDetails": { "order": 1.0, "parentTag": "us-gaap_DeferredTaxLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment.", "label": "Deferred Tax Liabilities, Property, Plant and Equipment", "terseLabel": "Depreciation and amortization" } } }, "localname": "DeferredTaxLiabilitiesPropertyPlantAndEquipment", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESComponentsofNetDeferredTaxAssetsandLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxLiabilitiesUndistributedForeignEarnings": { "auth_ref": [ "r556" ], "calculation": { "http://cabotcmp.com/role/INCOMETAXESComponentsofNetDeferredTaxAssetsandLiabilitiesDetails": { "order": 2.0, "parentTag": "us-gaap_DeferredTaxLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of deferred tax liability attributable to taxable temporary differences from undistributed earnings of subsidiary and other recognized entity not within country of domicile. Includes, but is not limited to, other basis differences.", "label": "Deferred Tax Liabilities, Undistributed Foreign Earnings", "terseLabel": "Withholding on transition taxes" } } }, "localname": "DeferredTaxLiabilitiesUndistributedForeignEarnings", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESComponentsofNetDeferredTaxAssetsandLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DefinedBenefitPlanAccumulatedBenefitObligation": { "auth_ref": [ "r416" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level.", "label": "Defined Benefit Plan, Accumulated Benefit Obligation", "terseLabel": "Accumulated benefit obligation" } } }, "localname": "DefinedBenefitPlanAccumulatedBenefitObligation", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSPurchaseObligationsinForeignJurisdictionsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax": { "auth_ref": [ "r65", "r70", "r428" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount, before tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit).", "label": "Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax", "negatedTerseLabel": "Pension cost included in Accumulated other comprehensive income (loss)" } } }, "localname": "DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSPurchaseObligationsinForeignJurisdictionsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate": { "auth_ref": [ "r429" ], "lang": { "en-US": { "role": { "documentation": "Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan.", "label": "Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate", "terseLabel": "Weighted average discount rate" } } }, "localname": "DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSPurchaseObligationsinForeignJurisdictionsDetails" ], "xbrltype": "percentItemType" }, "us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease": { "auth_ref": [ "r430" ], "lang": { "en-US": { "role": { "documentation": "Weighted average rate increase of compensation, used to determine benefit obligation of defined benefit plan. Plan includes, but is not limited to, pay-related defined benefit plan.", "label": "Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase", "terseLabel": "Weighted average rate of increases in future compensation levels" } } }, "localname": "DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSPurchaseObligationsinForeignJurisdictionsDetails" ], "xbrltype": "percentItemType" }, "us-gaap_DefinedBenefitPlanDisclosureLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Defined Benefit Plan Disclosure [Line Items]", "terseLabel": "Defined Benefit Plan Disclosure [Line Items]" } } }, "localname": "DefinedBenefitPlanDisclosureLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSPurchaseObligationsinForeignJurisdictionsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter": { "auth_ref": [ "r417" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of benefit for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following current fiscal year.", "label": "Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years", "terseLabel": "2026 to 2030" } } }, "localname": "DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSScheduleofFutureBenefitPaymentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths": { "auth_ref": [ "r417" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of benefit for defined benefit plan expected to be paid in next fiscal year following current fiscal year.", "label": "Defined Benefit Plan, Expected Future Benefit Payment, Year One", "terseLabel": "2021" } } }, "localname": "DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSScheduleofFutureBenefitPaymentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive": { "auth_ref": [ "r417" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of benefit for defined benefit plan expected to be paid in fifth fiscal year following current fiscal year.", "label": "Defined Benefit Plan, Expected Future Benefit Payment, Year Five", "terseLabel": "2025" } } }, "localname": "DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSScheduleofFutureBenefitPaymentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour": { "auth_ref": [ "r417" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of benefit for defined benefit plan expected to be paid in fourth fiscal year following current fiscal year.", "label": "Defined Benefit Plan, Expected Future Benefit Payment, Year Four", "terseLabel": "2024" } } }, "localname": "DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSScheduleofFutureBenefitPaymentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree": { "auth_ref": [ "r417" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of benefit for defined benefit plan expected to be paid in third fiscal year following current fiscal year.", "label": "Defined Benefit Plan, Expected Future Benefit Payment, Year Three", "terseLabel": "2023" } } }, "localname": "DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSScheduleofFutureBenefitPaymentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo": { "auth_ref": [ "r417" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of benefit for defined benefit plan expected to be paid in second fiscal year following current fiscal year.", "label": "Defined Benefit Plan, Expected Future Benefit Payment, Year Two", "terseLabel": "2022" } } }, "localname": "DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSScheduleofFutureBenefitPaymentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation": { "auth_ref": [ "r442" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of projected benefit obligation for defined benefit pension plan with accumulated benefit obligation in excess of plan assets.", "label": "Defined Benefit Plan, Pension Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Projected Benefit Obligation", "terseLabel": "Projected benefit obligation" } } }, "localname": "DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSPurchaseObligationsinForeignJurisdictionsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DefinedBenefitPlanServiceCost": { "auth_ref": [ "r387", "r420", "r447", "r456", "r457" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.", "label": "Defined Benefit Plan, Service Cost", "terseLabel": "Benefit costs" } } }, "localname": "DefinedBenefitPlanServiceCost", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DefinedContributionPlanCostRecognized": { "auth_ref": [ "r460" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of cost for defined contribution plan.", "label": "Defined Contribution Plan, Cost", "terseLabel": "Plan expense" } } }, "localname": "DefinedContributionPlanCostRecognized", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DefinedContributionPlanDisclosureLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Defined Contribution Plan Disclosure [Line Items]", "terseLabel": "Defined Contribution Plan Disclosure [Line Items]" } } }, "localname": "DefinedContributionPlanDisclosureLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of discretionary contributions made by an employer to a defined contribution plan.", "label": "Defined Contribution Plan, Employer Discretionary Contribution Amount", "terseLabel": "Plan contributions" } } }, "localname": "DefinedContributionPlanEmployerDiscretionaryContributionAmount", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DefinedContributionPlanTable": { "auth_ref": [ "r460" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about defined contribution pension plans or defined contribution other postretirement plans, separately for pension plans and other postretirement benefit plans.", "label": "Defined Contribution Plan [Table]", "terseLabel": "Defined Contribution Plan [Table]" } } }, "localname": "DefinedContributionPlanTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_Depreciation": { "auth_ref": [ "r118", "r301" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.", "label": "Depreciation", "terseLabel": "Depreciation expense" } } }, "localname": "Depreciation", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/PROPERTYPLANTANDEQUIPMENTDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DepreciationAndAmortization": { "auth_ref": [ "r118", "r301" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.", "label": "Depreciation, Depletion and Amortization, Nonproduction", "terseLabel": "Depreciation and amortization" } } }, "localname": "DepreciationAndAmortization", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SEGMENTREPORTINGReconciliationfromSegmentAdjustedEBITDADetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DepreciationDepletionAndAmortization": { "auth_ref": [ "r118", "r214" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 12.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.", "label": "Depreciation, Depletion and Amortization", "terseLabel": "Depreciation and amortization" } } }, "localname": "DepreciationDepletionAndAmortization", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_DerivativeAssetFairValueNetAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Derivative Asset, Fair Value, Amount Not Offset Against Collateral [Abstract]", "terseLabel": "Derivative Asset [Abstract]" } } }, "localname": "DerivativeAssetFairValueNetAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSFairValueofDerivativeInstrumentsintheConsolidatedBalanceSheetDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DerivativeAssets": { "auth_ref": [ "r59", "r60", "r645" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.", "label": "Derivative Asset", "terseLabel": "Derivative financial instruments" } } }, "localname": "DerivativeAssets", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/FAIRVALUEOFFINANCIALINSTRUMENTSFairValueDisclosureDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DerivativeContractTypeDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Financial instrument or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.", "label": "Derivative Contract [Domain]", "terseLabel": "Derivative Contract [Domain]" } } }, "localname": "DerivativeContractTypeDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSEffectofDerivativeInstrumentsontheConsolidatedStatementofIncomeDetails", "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSFairValueofDerivativeInstrumentsintheConsolidatedBalanceSheetDetails", "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSNarrativeDetails", "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSNotionalamountsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_DerivativeFairValueOfDerivativeAsset": { "auth_ref": [ "r58", "r61", "r615", "r697" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.", "label": "Derivative Asset, Fair Value, Gross Asset", "terseLabel": "Derivative Assets" } } }, "localname": "DerivativeFairValueOfDerivativeAsset", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSFairValueofDerivativeInstrumentsintheConsolidatedBalanceSheetDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DerivativeFairValueOfDerivativeLiability": { "auth_ref": [ "r58", "r61", "r615", "r697" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.", "label": "Derivative Liability, Fair Value, Gross Liability", "terseLabel": "Derivative Liabilities" } } }, "localname": "DerivativeFairValueOfDerivativeLiability", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSFairValueofDerivativeInstrumentsintheConsolidatedBalanceSheetDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DerivativeGainLossOnDerivativeNet": { "auth_ref": [ "r614" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.", "label": "Derivative, Gain (Loss) on Derivative, Net", "terseLabel": "Gain (Loss) Recognized in Consolidated Statements of Income" } } }, "localname": "DerivativeGainLossOnDerivativeNet", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSEffectofDerivativeInstrumentsontheConsolidatedStatementofIncomeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DerivativeGainLossOnDerivativeNetAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Derivative, Gain (Loss) on Derivative, Net [Abstract]", "terseLabel": "Derivative, Gain (Loss) on Derivative, Net [Abstract]" } } }, "localname": "DerivativeGainLossOnDerivativeNetAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSEffectofDerivativeInstrumentsontheConsolidatedStatementofIncomeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DerivativeInstrumentRiskAxis": { "auth_ref": [ "r613", "r616", "r619", "r623" ], "lang": { "en-US": { "role": { "documentation": "Information by type of derivative contract.", "label": "Derivative Instrument [Axis]", "terseLabel": "Derivative Instrument [Axis]" } } }, "localname": "DerivativeInstrumentRiskAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSEffectofDerivativeInstrumentsontheConsolidatedStatementofIncomeDetails", "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSFairValueofDerivativeInstrumentsintheConsolidatedBalanceSheetDetails", "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSNarrativeDetails", "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSNotionalamountsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Derivative Instruments and Hedging Activities Disclosure [Abstract]", "terseLabel": "Derivative Instruments and Hedging Activities Disclosure [Abstract]" } } }, "localname": "DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock": { "auth_ref": [ "r632" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for derivative instruments and hedging activities including, but not limited to, risk management strategies, non-hedging derivative instruments, assets, liabilities, revenue and expenses, and methodologies and assumptions used in determining the amounts.", "label": "Derivative Instruments and Hedging Activities Disclosure [Text Block]", "verboseLabel": "DERIVATIVE FINANCIAL INSTRUMENTS" } } }, "localname": "DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTS" ], "xbrltype": "textBlockItemType" }, "us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable": { "auth_ref": [ "r610", "r613", "r619", "r623", "r624", "r629", "r630" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about the location and amount of derivative instruments and nonderivative instruments designated as hedging instruments reported before netting adjustments, and the amount of gain (loss) on derivative instruments and nonderivative instruments designated and qualified as hedging instruments.", "label": "Derivative Instruments, Gain (Loss) [Table]", "terseLabel": "Derivative Instruments, Gain (Loss) [Table]" } } }, "localname": "DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSEffectofDerivativeInstrumentsonAccumulatedOtherComprehensiveIncomeDetails", "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSEffectofDerivativeInstrumentsontheConsolidatedStatementofIncomeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DerivativeInstrumentsGainLossLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Derivative Instruments, Gain (Loss) [Line Items]", "terseLabel": "Derivative Instruments, Gain (Loss) [Line Items]" } } }, "localname": "DerivativeInstrumentsGainLossLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSEffectofDerivativeInstrumentsonAccumulatedOtherComprehensiveIncomeDetails", "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSEffectofDerivativeInstrumentsontheConsolidatedStatementofIncomeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DerivativeInstrumentsGainLossReclassificationFromAccumulatedOCIToIncomeEstimatedNetAmountToBeTransferred": { "auth_ref": [ "r631" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The estimated value of gains (losses), net anticipated to be transferred in the future from accumulated other comprehensive income into earnings.", "label": "Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred", "terseLabel": "Amount to be reclassified as accumulated other comprehensive (loss) income" } } }, "localname": "DerivativeInstrumentsGainLossReclassificationFromAccumulatedOCIToIncomeEstimatedNetAmountToBeTransferred", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DerivativeLiabilities": { "auth_ref": [ "r59", "r60", "r645" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.", "label": "Derivative Liability", "terseLabel": "Derivative financial instruments" } } }, "localname": "DerivativeLiabilities", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/FAIRVALUEOFFINANCIALINSTRUMENTSFairValueDisclosureDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DerivativeLiabilitiesCurrent": { "auth_ref": [ "r59" ], "calculation": { "http://cabotcmp.com/role/ACCRUEDEXPENSESINCOMETAXESPAYABLEANDOTHERCURRENTLIABILITIESDetails": { "order": 2.0, "parentTag": "us-gaap_OtherLiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.", "label": "Derivative Liability, Current", "terseLabel": "Interest rate swap liability" } } }, "localname": "DerivativeLiabilitiesCurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ACCRUEDEXPENSESINCOMETAXESPAYABLEANDOTHERCURRENTLIABILITIESDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DerivativeLiabilityFairValueNetAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Derivative Liability, Fair Value, Amount Not Offset Against Collateral [Abstract]", "terseLabel": "Derivative Liability [Abstract]" } } }, "localname": "DerivativeLiabilityFairValueNetAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSFairValueofDerivativeInstrumentsintheConsolidatedBalanceSheetDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DerivativeLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Derivative [Line Items]", "terseLabel": "Derivative [Line Items]" } } }, "localname": "DerivativeLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSNarrativeDetails", "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSNotionalamountsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DerivativeNotionalAmount": { "auth_ref": [ "r607", "r609" ], "lang": { "en-US": { "role": { "documentation": "Nominal or face amount used to calculate payment on derivative.", "label": "Derivative, Notional Amount", "terseLabel": "Derivative, notional amount" } } }, "localname": "DerivativeNotionalAmount", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSNotionalamountsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DerivativeTable": { "auth_ref": [ "r606", "r608", "r609", "r610", "r611", "r618", "r619", "r626", "r628", "r630" ], "lang": { "en-US": { "role": { "documentation": "Schedule that describes and identifies a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item.", "label": "Derivative [Table]", "terseLabel": "Derivative [Table]" } } }, "localname": "DerivativeTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSNarrativeDetails", "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSNotionalamountsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DerivativesFairValueLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Derivatives, Fair Value [Line Items]", "terseLabel": "Derivatives, Fair Value [Line Items]" } } }, "localname": "DerivativesFairValueLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSFairValueofDerivativeInstrumentsintheConsolidatedBalanceSheetDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DerivativesPolicyTextBlock": { "auth_ref": [ "r128", "r138", "r606", "r608", "r610", "r611", "r627" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for its derivative instruments and hedging activities.", "label": "Derivatives, Policy [Policy Text Block]", "terseLabel": "Derivatives and Hedging" } } }, "localname": "DerivativesPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_DesignatedAsHedgingInstrumentMember": { "auth_ref": [ "r610" ], "lang": { "en-US": { "role": { "documentation": "Derivative instrument designated as hedging instrument under Generally Accepted Accounting Principles (GAAP).", "label": "Designated as Hedging Instrument [Member]", "terseLabel": "Derivatives designated as hedging instruments" } } }, "localname": "DesignatedAsHedgingInstrumentMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSEffectofDerivativeInstrumentsontheConsolidatedStatementofIncomeDetails", "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSFairValueofDerivativeInstrumentsintheConsolidatedBalanceSheetDetails" ], "xbrltype": "domainItemType" }, "us-gaap_DetailsOfImpairmentOfLongLivedAssetsHeldAndUsedByAssetTextBlock": { "auth_ref": [ "r306", "r309" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure for impairment of long-lived assets held and used by an entity which includes a description of the impaired long-lived asset and facts and circumstances leading to the impairment, aggregate amount of the impairment loss and where the loss is located in the income statement, method(s) for determining fair value, and the segment in which the impaired long-lived asset is reported.", "label": "Details of Impairment of Long-Lived Assets Held and Used by Asset [Table Text Block]", "terseLabel": "Long-lived asset impairment" } } }, "localname": "DetailsOfImpairmentOfLongLivedAssetsHeldAndUsedByAssetTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/LONGLIVEDASSETIMPAIRMENTWOODTREATMENTTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock": { "auth_ref": [ "r529" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for share-based payment arrangement.", "label": "Share-based Payment Arrangement [Text Block]", "verboseLabel": "SHARE-BASED COMPENSATION PLANS" } } }, "localname": "DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANS" ], "xbrltype": "textBlockItemType" }, "us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Share-based Payment Arrangement [Abstract]", "terseLabel": "Disclosure of Compensation Related Costs, Share-based Payments [Abstract]" } } }, "localname": "DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_DividendsCommonStock": { "auth_ref": [ "r350", "r718" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of paid and unpaid common stock dividends declared with the form of settlement in cash, stock and payment-in-kind (PIK).", "label": "Dividends, Common Stock", "negatedLabel": "Dividends paid" } } }, "localname": "DividendsCommonStock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY" ], "xbrltype": "monetaryItemType" }, "us-gaap_DividendsPayableCurrent": { "auth_ref": [ "r11", "r48" ], "calculation": { "http://cabotcmp.com/role/ACCRUEDEXPENSESINCOMETAXESPAYABLEANDOTHERCURRENTLIABILITIESDetails": { "order": 4.0, "parentTag": "us-gaap_OtherLiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).", "label": "Dividends Payable, Current", "terseLabel": "Dividends payable" } } }, "localname": "DividendsPayableCurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ACCRUEDEXPENSESINCOMETAXESPAYABLEANDOTHERCURRENTLIABILITIESDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DomesticCountryMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Designated tax department of the government that is entitled to levy and collect income taxes from the entity in its country of domicile.", "label": "Domestic Tax Authority [Member]", "terseLabel": "Federal" } } }, "localname": "DomesticCountryMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESNetOperatingLossCapitalandTaxCreditCarryforwardsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_DomesticPlanMember": { "auth_ref": [ "r461", "r465", "r478" ], "lang": { "en-US": { "role": { "documentation": "Location of employer sponsoring plan, designed to provide retirement benefits, determined as principal place of business. Includes, but is not limited to, defined benefit and defined contribution plans.", "label": "Domestic Plan [Member]", "terseLabel": "Domestic Plan [Member]" } } }, "localname": "DomesticPlanMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSNarrativeDetails" ], "xbrltype": "domainItemType" }, "us-gaap_EarningsPerShareAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Earnings Per Share [Abstract]", "terseLabel": "Earnings Per Share [Abstract]" } } }, "localname": "EarningsPerShareAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_EarningsPerShareBasic": { "auth_ref": [ "r84", "r159", "r160", "r161", "r162", "r163", "r167", "r170", "r177", "r180", "r181", "r185", "r186", "r715", "r733" ], "lang": { "en-US": { "role": { "documentation": "The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.", "label": "Earnings Per Share, Basic", "terseLabel": "Basic earnings (loss) per share (in dollars per share)", "verboseLabel": "Basic earnings per share (in dollars per share)" } } }, "localname": "EarningsPerShareBasic", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFINCOME", "http://cabotcmp.com/role/EARNINGSPERSHAREDetails", "http://cabotcmp.com/role/SELECTEDQUARTERLYOPERATINGRESULTSDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_EarningsPerShareDiluted": { "auth_ref": [ "r84", "r159", "r160", "r161", "r162", "r163", "r170", "r177", "r180", "r181", "r185", "r186", "r715", "r733" ], "lang": { "en-US": { "role": { "documentation": "The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.", "label": "Earnings Per Share, Diluted", "terseLabel": "Diluted earnings (loss) per share (in dollars per share)", "verboseLabel": "Diluted earnings per share (in dollars per share)" } } }, "localname": "EarningsPerShareDiluted", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFINCOME", "http://cabotcmp.com/role/EARNINGSPERSHAREDetails", "http://cabotcmp.com/role/SELECTEDQUARTERLYOPERATINGRESULTSDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_EarningsPerSharePolicyTextBlock": { "auth_ref": [ "r128", "r182", "r183" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for computing basic and diluted earnings or loss per share for each class of common stock and participating security. Addresses all significant policy factors, including any antidilutive items that have been excluded from the computation and takes into account stock dividends, splits and reverse splits that occur after the balance sheet date of the latest reporting period but before the issuance of the financial statements.", "label": "Earnings Per Share, Policy [Policy Text Block]", "terseLabel": "Earnings Per Share" } } }, "localname": "EarningsPerSharePolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_EarningsPerShareReconciliationAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Earnings Per Share Reconciliation [Abstract]", "verboseLabel": "Earnings per share:" } } }, "localname": "EarningsPerShareReconciliationAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EARNINGSPERSHAREDetails" ], "xbrltype": "stringItemType" }, "us-gaap_EarningsPerShareTextBlock": { "auth_ref": [ "r182", "r183", "r184", "r187" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for earnings per share.", "label": "Earnings Per Share [Text Block]", "verboseLabel": "EARNINGS PER SHARE" } } }, "localname": "EarningsPerShareTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EARNINGSPERSHARE" ], "xbrltype": "textBlockItemType" }, "us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents": { "auth_ref": [ "r652" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 4.0, "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of increase (decrease) from effect of exchange rate changes on cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; held in foreign currencies. Excludes amounts for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.", "label": "Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents", "terseLabel": "Effect of exchange rate changes on cash" } } }, "localname": "EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_EffectiveIncomeTaxRateContinuingOperations": { "auth_ref": [ "r538" ], "calculation": { "http://cabotcmp.com/role/INCOMETAXESProvisionforIncomeTaxesDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "lang": { "en-US": { "role": { "documentation": "Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.", "label": "Effective Income Tax Rate Reconciliation, Percent", "totalLabel": "Provision for income taxes" } } }, "localname": "EffectiveIncomeTaxRateContinuingOperations", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESProvisionforIncomeTaxesDetails" ], "xbrltype": "percentItemType" }, "us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Effective Income Tax Rate Reconciliation, Percent [Abstract]", "terseLabel": "Effective Income Tax Rate Reconciliation, Percent [Abstract]" } } }, "localname": "EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESProvisionforIncomeTaxesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate": { "auth_ref": [ "r538", "r571" ], "calculation": { "http://cabotcmp.com/role/INCOMETAXESProvisionforIncomeTaxesDetails": { "order": 7.0, "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations", "weight": 1.0 } }, "lang": { "en-US": { "role": { "documentation": "Percentage of domestic federal statutory tax rate applicable to pretax income (loss).", "label": "Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent", "terseLabel": "Federal statutory rate" } } }, "localname": "EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESProvisionforIncomeTaxesDetails" ], "xbrltype": "percentItemType" }, "us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential": { "auth_ref": [ "r538", "r571" ], "calculation": { "http://cabotcmp.com/role/INCOMETAXESProvisionforIncomeTaxesDetails": { "order": 6.0, "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations", "weight": 1.0 } }, "lang": { "en-US": { "role": { "documentation": "Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to statutory income tax expense (benefit) outside of the country of domicile.", "label": "Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent", "terseLabel": "Foreign income at other than U.S. rates" } } }, "localname": "EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESProvisionforIncomeTaxesDetails" ], "xbrltype": "percentItemType" }, "us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther": { "auth_ref": [ "r538", "r571" ], "calculation": { "http://cabotcmp.com/role/INCOMETAXESProvisionforIncomeTaxesDetails": { "order": 10.0, "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations", "weight": 1.0 } }, "lang": { "en-US": { "role": { "documentation": "Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other nondeductible expenses.", "label": "Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Percent", "terseLabel": "Excess compensation" } } }, "localname": "EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESProvisionforIncomeTaxesDetails" ], "xbrltype": "percentItemType" }, "us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost": { "auth_ref": [ "r538", "r571" ], "calculation": { "http://cabotcmp.com/role/INCOMETAXESProvisionforIncomeTaxesDetails": { "order": 11.0, "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations", "weight": 1.0 } }, "lang": { "en-US": { "role": { "documentation": "Percentage of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to nondeductible expense for share-based payment arrangement.", "label": "Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Payment Arrangement, Percent", "negatedLabel": "Share-based compensation" } } }, "localname": "EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESProvisionforIncomeTaxesDetails" ], "xbrltype": "percentItemType" }, "us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments": { "auth_ref": [ "r538", "r571" ], "calculation": { "http://cabotcmp.com/role/INCOMETAXESProvisionforIncomeTaxesDetails": { "order": 5.0, "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations", "weight": 1.0 } }, "lang": { "en-US": { "role": { "documentation": "Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments.", "label": "Effective Income Tax Rate Reconciliation, Other Adjustments, Percent", "negatedTerseLabel": "Other, net" } } }, "localname": "EffectiveIncomeTaxRateReconciliationOtherAdjustments", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESProvisionforIncomeTaxesDetails" ], "xbrltype": "percentItemType" }, "us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes": { "auth_ref": [ "r538", "r571" ], "calculation": { "http://cabotcmp.com/role/INCOMETAXESProvisionforIncomeTaxesDetails": { "order": 2.0, "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations", "weight": 1.0 } }, "lang": { "en-US": { "role": { "documentation": "Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).", "label": "Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent", "negatedTerseLabel": "State taxes, net of federal effect" } } }, "localname": "EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESProvisionforIncomeTaxesDetails" ], "xbrltype": "percentItemType" }, "us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsResearch": { "auth_ref": [ "r538", "r571" ], "calculation": { "http://cabotcmp.com/role/INCOMETAXESProvisionforIncomeTaxesDetails": { "order": 4.0, "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations", "weight": 1.0 } }, "lang": { "en-US": { "role": { "documentation": "Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to research tax credit.", "label": "Effective Income Tax Rate Reconciliation, Tax Credit, Research, Percent", "negatedLabel": "U.S. benefits from research and experimentation activities" } } }, "localname": "EffectiveIncomeTaxRateReconciliationTaxCreditsResearch", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESProvisionforIncomeTaxesDetails" ], "xbrltype": "percentItemType" }, "us-gaap_EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Percent": { "auth_ref": [ "r538" ], "calculation": { "http://cabotcmp.com/role/INCOMETAXESProvisionforIncomeTaxesDetails": { "order": 9.0, "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations", "weight": 1.0 } }, "lang": { "en-US": { "role": { "documentation": "Percentage of reported income tax expense (benefit) in excess of (less than) expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operations, attributable to Tax Cuts and Jobs Act.", "label": "Effective Income Tax Rate Reconciliation, Tax Cuts and Jobs Act, Percent", "terseLabel": "U.S. tax reform" } } }, "localname": "EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Percent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESProvisionforIncomeTaxesDetails" ], "xbrltype": "pureItemType" }, "us-gaap_EmployeeRelatedLiabilitiesCurrent": { "auth_ref": [ "r48" ], "calculation": { "http://cabotcmp.com/role/ACCRUEDEXPENSESINCOMETAXESPAYABLEANDOTHERCURRENTLIABILITIESDetails": { "order": 10.0, "parentTag": "us-gaap_OtherLiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).", "label": "Employee-related Liabilities, Current", "terseLabel": "Accrued compensation" } } }, "localname": "EmployeeRelatedLiabilitiesCurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ACCRUEDEXPENSESINCOMETAXESPAYABLEANDOTHERCURRENTLIABILITIESDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]", "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]" } } }, "localname": "EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSScheduleofTotalGrossSharebasedCompensationExpenseDetails", "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSShareBasedCompensationExpenseDetails" ], "xbrltype": "stringItemType" }, "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized": { "auth_ref": [ "r514" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of cost not yet recognized for nonvested award under share-based payment arrangement.", "label": "Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount", "terseLabel": "Total unrecognized share-based compensation expense" } } }, "localname": "EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1": { "auth_ref": [ "r514" ], "lang": { "en-US": { "role": { "documentation": "Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.", "label": "Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition", "terseLabel": "Compensation cost, weighted-average period for recognition" } } }, "localname": "EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSNarrativeDetails" ], "xbrltype": "durationItemType" }, "us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense": { "auth_ref": [ "r513" ], "calculation": { "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSShareBasedCompensationExpenseDetails": { "order": 2.0, "parentTag": "us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of tax benefit for recognition of expense of award under share-based payment arrangement.", "label": "Share-based Payment Arrangement, Expense, Tax Benefit", "negatedLabel": "Tax benefit" } } }, "localname": "EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSShareBasedCompensationExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions": { "auth_ref": [ "r516" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of tax benefit from exercise of option under share-based payment arrangement.", "label": "Share-based Payment Arrangement, Exercise of Option, Tax Benefit", "terseLabel": "Tax benefit from exercise of options" } } }, "localname": "EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSStockOptionActivityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EmployeeStockMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "An Employee Stock Purchase Plan is a tax-efficient means by which employees of a corporation can purchase the corporation's stock.", "label": "Employee Stock [Member]", "terseLabel": "ESPP" } } }, "localname": "EmployeeStockMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSNarrativeDetails", "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSScheduleofTotalGrossSharebasedCompensationExpenseDetails", "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSWeightedAverageAssumptionsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_EmployeeStockOptionMember": { "auth_ref": [ "r511" ], "lang": { "en-US": { "role": { "documentation": "Share-based payment arrangement granting right, subject to vesting and other restrictions, to purchase or sell certain number of shares at predetermined price for specified period of time.", "label": "Share-based Payment Arrangement, Option [Member]", "terseLabel": "Stock option" } } }, "localname": "EmployeeStockOptionMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EARNINGSPERSHAREDetails", "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSNarrativeDetails", "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSWeightedAverageAssumptionsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_EnvironmentalExitCostByPropertyAxis": { "auth_ref": [ "r334" ], "lang": { "en-US": { "role": { "documentation": "Information by type of property related to exit costs.", "label": "Environmental Exit Cost by Property [Axis]", "terseLabel": "Environmental Exit Cost by Property [Axis]" } } }, "localname": "EnvironmentalExitCostByPropertyAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/COMMITMENTSANDCONTINGENCIESNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_EnvironmentalExitCostLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Environmental Exit Cost [Line Items]", "terseLabel": "Environmental Exit Cost [Line Items]" } } }, "localname": "EnvironmentalExitCostLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/COMMITMENTSANDCONTINGENCIESNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_EnvironmentalExitCostsAnticipatedCost": { "auth_ref": [ "r334" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Total anticipated costs associated with remediation, site restoration, postclosure, monitoring commitments, or other exit costs that may occur on the sale, disposal, or abandonment of a particular property resulting from unanticipated contamination of the assets.", "label": "Environmental Exit Costs, Anticipated Cost", "terseLabel": "Estimated remediation cost" } } }, "localname": "EnvironmentalExitCostsAnticipatedCost", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/COMMITMENTSANDCONTINGENCIESNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EnvironmentalExitCostsCostsAccruedToDate": { "auth_ref": [ "r334" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Carrying amount as of the balance sheet date of the liability for remediation, site restoration, postclosure, monitoring commitments, or other exit costs associated with the sale, disposal or abandonment of a particular property resulting from unanticipated contamination of the assets.", "label": "Environmental Exit Costs, Costs Accrued to Date", "terseLabel": "Loss contingency" } } }, "localname": "EnvironmentalExitCostsCostsAccruedToDate", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/COMMITMENTSANDCONTINGENCIESNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EnvironmentalExitCostsNameOfPropertyDomain": { "auth_ref": [ "r334" ], "lang": { "en-US": { "role": { "documentation": "Name of the property being sold, disposed, or abandoned that requires remediation, site restoration, postclosure, monitoring commitments, or other exit costs as a result of unanticipated contamination of the assets.", "label": "Environmental Exit Costs, Name of Property [Domain]", "terseLabel": "Environmental Exit Costs, Name of Property [Domain]" } } }, "localname": "EnvironmentalExitCostsNameOfPropertyDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/COMMITMENTSANDCONTINGENCIESNarrativeDetails" ], "xbrltype": "domainItemType" }, "us-gaap_EquityComponentDomain": { "auth_ref": [ "r150", "r151", "r152", "r155", "r164", "r166", "r191", "r259", "r345", "r350", "r521", "r522", "r523", "r563", "r564", "r653", "r654", "r655", "r656", "r657", "r659", "r744", "r745", "r746" ], "lang": { "en-US": { "role": { "documentation": "Components of equity are the parts of the total Equity balance including that which is allocated to common, preferred, treasury stock, retained earnings, etc.", "label": "Equity Component [Domain]", "terseLabel": "Equity Component [Domain]" } } }, "localname": "EquityComponentDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSDetails", "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY", "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSEffectofDerivativeInstrumentsonAccumulatedOtherComprehensiveIncomeDetails", "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESRecentlyAdoptedAccountingPronouncementsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]", "terseLabel": "Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]" } } }, "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/FAIRVALUEOFFINANCIALINSTRUMENTSFairValueDisclosureDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable": { "auth_ref": [ "r633", "r634", "r635", "r641" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about asset and liability measured at fair value on recurring and nonrecurring basis.", "label": "Fair Value, Recurring and Nonrecurring [Table]", "terseLabel": "Fair Value Measurements, Recurring and Nonrecurring [Table]" } } }, "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/FAIRVALUEOFFINANCIALINSTRUMENTSFairValueDisclosureDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock": { "auth_ref": [ "r633", "r634", "r635", "r640", "r641" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of financial instruments measured at fair value, including those classified in shareholders' equity measured on a recurring or nonrecurring basis. Disclosures include, but are not limited to, fair value measurements recorded and the reasons for the measurements, level within the fair value hierarchy in which the fair value measurements are categorized and transfers between levels 1 and 2. Nonrecurring fair value measurements are those that are required or permitted in the statement of financial position in particular circumstances.", "label": "Fair Value Measurements, Recurring and Nonrecurring [Table Text Block]", "terseLabel": "Fair value measurements on a recurring basis" } } }, "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/FAIRVALUEOFFINANCIALINSTRUMENTSTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisValuationTechniquesTextBlock": { "auth_ref": [ "r636" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of input and valuation technique used to measure fair value and change in valuation approach and technique used to measure similar asset in prior period by class of asset or liability on non-recurring basis.", "label": "Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques [Table Text Block]", "terseLabel": "Fair value assumptions and methodology" } } }, "localname": "FairValueAssetsMeasuredOnNonrecurringBasisValuationTechniquesTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_FairValueByFairValueHierarchyLevelAxis": { "auth_ref": [ "r408", "r410", "r411", "r412", "r413", "r414", "r415", "r456", "r634", "r688", "r689", "r690" ], "lang": { "en-US": { "role": { "documentation": "Information by level within fair value hierarchy and fair value measured at net asset value per share as practical expedient.", "label": "Fair Value Hierarchy and NAV [Axis]", "terseLabel": "Fair Value Hierarchy and NAV [Axis]" } } }, "localname": "FairValueByFairValueHierarchyLevelAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTNarrativeDetails", "http://cabotcmp.com/role/FAIRVALUEOFFINANCIALINSTRUMENTSFairValueDisclosureDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueByMeasurementFrequencyAxis": { "auth_ref": [ "r633", "r634", "r637", "r638", "r642" ], "lang": { "en-US": { "role": { "documentation": "Information by measurement frequency.", "label": "Measurement Frequency [Axis]", "terseLabel": "Measurement Frequency [Axis]" } } }, "localname": "FairValueByMeasurementFrequencyAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/FAIRVALUEOFFINANCIALINSTRUMENTSFairValueDisclosureDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueDisclosuresAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Fair Value Disclosures [Abstract]", "terseLabel": "Fair Value Disclosures [Abstract]" } } }, "localname": "FairValueDisclosuresAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_FairValueDisclosuresTextBlock": { "auth_ref": [ "r639" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.", "label": "Fair Value Disclosures [Text Block]", "verboseLabel": "FAIR VALUE OF FINANCIAL INSTRUMENTS" } } }, "localname": "FairValueDisclosuresTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/FAIRVALUEOFFINANCIALINSTRUMENTS" ], "xbrltype": "textBlockItemType" }, "us-gaap_FairValueInputsLevel1Member": { "auth_ref": [ "r408", "r410", "r415", "r456", "r634", "r688" ], "lang": { "en-US": { "role": { "documentation": "Quoted prices in active markets for identical assets or liabilities that the reporting entity can access at the measurement date.", "label": "Fair Value, Inputs, Level 1 [Member]", "terseLabel": "Level 1" } } }, "localname": "FairValueInputsLevel1Member", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/FAIRVALUEOFFINANCIALINSTRUMENTSFairValueDisclosureDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueInputsLevel2Member": { "auth_ref": [ "r408", "r410", "r415", "r456", "r634", "r689" ], "lang": { "en-US": { "role": { "documentation": "Inputs other than quoted prices included within level 1 that are observable for an asset or liability, either directly or indirectly, including, but not limited to, quoted prices for similar assets or liabilities in active markets, or quoted prices for identical or similar assets or liabilities in inactive markets.", "label": "Fair Value, Inputs, Level 2 [Member]", "terseLabel": "Level 2" } } }, "localname": "FairValueInputsLevel2Member", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTNarrativeDetails", "http://cabotcmp.com/role/FAIRVALUEOFFINANCIALINSTRUMENTSFairValueDisclosureDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueInputsLevel3Member": { "auth_ref": [ "r408", "r410", "r411", "r412", "r413", "r414", "r415", "r456", "r634", "r690" ], "lang": { "en-US": { "role": { "documentation": "Unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.", "label": "Fair Value, Inputs, Level 3 [Member]", "terseLabel": "Level 3" } } }, "localname": "FairValueInputsLevel3Member", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/FAIRVALUEOFFINANCIALINSTRUMENTSFairValueDisclosureDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueMeasurementFrequencyDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Measurement frequency.", "label": "Measurement Frequency [Domain]", "terseLabel": "Fair Value, Measurement Frequency [Domain]" } } }, "localname": "FairValueMeasurementFrequencyDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/FAIRVALUEOFFINANCIALINSTRUMENTSFairValueDisclosureDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueMeasurementsFairValueHierarchyDomain": { "auth_ref": [ "r408", "r410", "r411", "r412", "r413", "r414", "r415", "r456", "r688", "r689", "r690" ], "lang": { "en-US": { "role": { "documentation": "Categories used to prioritize the inputs to valuation techniques to measure fair value.", "label": "Fair Value Hierarchy and NAV [Domain]", "terseLabel": "Fair Value Hierarchy and NAV [Domain]" } } }, "localname": "FairValueMeasurementsFairValueHierarchyDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTNarrativeDetails", "http://cabotcmp.com/role/FAIRVALUEOFFINANCIALINSTRUMENTSFairValueDisclosureDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueMeasurementsRecurringMember": { "auth_ref": [ "r639", "r642" ], "lang": { "en-US": { "role": { "documentation": "Frequent fair value measurement. Includes, but is not limited to, fair value adjustment for impairment of asset, liability or equity, frequently measured at fair value.", "label": "Fair Value, Recurring [Member]", "terseLabel": "Fair value, measurements, recurring" } } }, "localname": "FairValueMeasurementsRecurringMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/FAIRVALUEOFFINANCIALINSTRUMENTSFairValueDisclosureDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueOfFinancialInstrumentsPolicy": { "auth_ref": [ "r128", "r643", "r644" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for determining the fair value of financial instruments.", "label": "Fair Value of Financial Instruments, Policy [Policy Text Block]", "terseLabel": "Fair Value of Financial Instruments" } } }, "localname": "FairValueOfFinancialInstrumentsPolicy", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable": { "auth_ref": [ "r612", "r618", "r629" ], "lang": { "en-US": { "role": { "documentation": "Schedule that discloses the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position.", "label": "Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]", "terseLabel": "Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]" } } }, "localname": "FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSFairValueofDerivativeInstrumentsintheConsolidatedBalanceSheetDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations": { "auth_ref": [ "r131", "r537" ], "calculation": { "http://cabotcmp.com/role/INCOMETAXESIncomeBeforeIncomeTaxesandTaxesonIncomeDetails": { "order": 2.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of current and deferred federal income tax expense (benefit) attributable to income (loss) from continuing operations.", "label": "Federal Income Tax Expense (Benefit), Continuing Operations", "totalLabel": "Total" } } }, "localname": "FederalIncomeTaxExpenseBenefitContinuingOperations", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESIncomeBeforeIncomeTaxesandTaxesonIncomeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperationsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Federal Income Tax Expense (Benefit), Continuing Operations [Abstract]", "terseLabel": "U.S. federal and state:" } } }, "localname": "FederalIncomeTaxExpenseBenefitContinuingOperationsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESIncomeBeforeIncomeTaxesandTaxesonIncomeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FinancingReceivableAllowanceForCreditLossesRecovery": { "auth_ref": [ "r247", "r265", "r267" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of increase in allowance for credit loss on financing receivable from recovery.", "label": "Financing Receivable, Allowance for Credit Loss, Recovery", "negatedLabel": "Amount of charge (benefit) to expense" } } }, "localname": "FinancingReceivableAllowanceForCreditLossesRecovery", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESAccountsReceivableandAllowanceforDoubtfulAccountsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetUsefulLife": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.", "label": "Finite-Lived Intangible Asset, Useful Life", "terseLabel": "Useful lives of intangible assets" } } }, "localname": "FiniteLivedIntangibleAssetUsefulLife", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESGoodwillandOtherIntangibleAssetsDetails" ], "xbrltype": "durationItemType" }, "us-gaap_FiniteLivedIntangibleAssetWeightedAveragePeriodBeforeNextRenewalOrExtension": { "auth_ref": [ "r296" ], "lang": { "en-US": { "role": { "documentation": "Weighted average period before the next renewal or extension (both explicit and implicit) for intangible assets that have been renewed or extended, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.", "label": "Finite-Lived Intangible Asset, Weighted Average Period before Next Renewal or Extension", "terseLabel": "Weighted average useful life" } } }, "localname": "FiniteLivedIntangibleAssetWeightedAveragePeriodBeforeNextRenewalOrExtension", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONNarrativeDetails" ], "xbrltype": "durationItemType" }, "us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization": { "auth_ref": [ "r291" ], "calculation": { "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsDetails": { "order": 2.0, "parentTag": "us-gaap_FiniteLivedIntangibleAssetsNet", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.", "label": "Finite-Lived Intangible Assets, Accumulated Amortization", "terseLabel": "Accumulated Amortization" } } }, "localname": "FiniteLivedIntangibleAssetsAccumulatedAmortization", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsActivityDetails", "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTable": { "auth_ref": [ "r283" ], "lang": { "en-US": { "role": { "documentation": "A table containing detailed characteristics of finite-lived intangible assets acquired during a business combination. Finite-lived intangible assets are assets that have no physical form, but have expected future economic benefit, and are expected to be used over a defined period. Acquired finite-lived intangible assets are disclosed by major class (assets that can be grouped together because they are similar, either by their nature or by their use in operations of the Entity) and in total. Additionally, any significant residual value (the expected value of the asset at the end of its useful life) and the weighted-average amortization period are also disclosed.", "label": "Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table]", "terseLabel": "Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table]" } } }, "localname": "FiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONIdentifiableIntangibleAssetsAcquiredDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths": { "auth_ref": [ "r293" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Finite-Lived Intangible Asset, Expected Amortization, Year One", "verboseLabel": "2021" } } }, "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSAmortizationExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive": { "auth_ref": [ "r293" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Finite-Lived Intangible Asset, Expected Amortization, Year Five", "terseLabel": "2025" } } }, "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseYearFive", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSAmortizationExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour": { "auth_ref": [ "r293" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Finite-Lived Intangible Asset, Expected Amortization, Year Four", "verboseLabel": "2024" } } }, "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseYearFour", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSAmortizationExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree": { "auth_ref": [ "r293" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Finite-Lived Intangible Asset, Expected Amortization, Year Three", "verboseLabel": "2023" } } }, "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseYearThree", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSAmortizationExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo": { "auth_ref": [ "r293" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Finite-Lived Intangible Asset, Expected Amortization, Year Two", "verboseLabel": "2022" } } }, "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSAmortizationExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis": { "auth_ref": [ "r283", "r287", "r291", "r295", "r700", "r704" ], "lang": { "en-US": { "role": { "documentation": "Information by major type or class of finite-lived intangible assets.", "label": "Finite-Lived Intangible Assets by Major Class [Axis]", "terseLabel": "Finite-Lived Intangible Assets by Major Class [Axis]" } } }, "localname": "FiniteLivedIntangibleAssetsByMajorClassAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONIdentifiableIntangibleAssetsAcquiredDetails", "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsActivityDetails", "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsDetails", "http://cabotcmp.com/role/LONGLIVEDASSETIMPAIRMENTWOODTREATMENTLonglivedAssetImpairmentDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]", "verboseLabel": "Estimated future amortization expense [Abstract]" } } }, "localname": "FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSAmortizationExpenseDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FiniteLivedIntangibleAssetsGross": { "auth_ref": [ "r291", "r704" ], "calculation": { "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsDetails": { "order": 1.0, "parentTag": "us-gaap_FiniteLivedIntangibleAssetsNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.", "label": "Finite-Lived Intangible Assets, Gross", "negatedPeriodStartLabel": "Finite-Lived Intangible Assets, Gross", "periodEndLabel": "Gross carrying amount, ending balance", "periodStartLabel": "Gross carrying amount, beginning balance" } } }, "localname": "FiniteLivedIntangibleAssetsGross", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsActivityDetails", "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetsLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Finite-Lived Intangible Assets [Line Items]", "terseLabel": "Finite-Lived Intangible Assets [Line Items]" } } }, "localname": "FiniteLivedIntangibleAssetsLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsActivityDetails", "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain": { "auth_ref": [ "r283", "r290" ], "lang": { "en-US": { "role": { "documentation": "The major class of finite-lived intangible asset (for example, patents, trademarks, copyrights, etc.) A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.", "label": "Finite-Lived Intangible Assets, Major Class Name [Domain]", "terseLabel": "Finite-Lived Intangible Assets, Major Class Name [Domain]" } } }, "localname": "FiniteLivedIntangibleAssetsMajorClassNameDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONIdentifiableIntangibleAssetsAcquiredDetails", "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsActivityDetails", "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsDetails", "http://cabotcmp.com/role/LONGLIVEDASSETIMPAIRMENTWOODTREATMENTLonglivedAssetImpairmentDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FiniteLivedIntangibleAssetsNet": { "auth_ref": [ "r291", "r700" ], "calculation": { "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsDetails": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsDetails_1": { "order": 2.0, "parentTag": "us-gaap_IntangibleAssetsNetExcludingGoodwill", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.", "label": "Finite-Lived Intangible Assets, Net", "terseLabel": "Intangible assets", "totalLabel": "Net", "verboseLabel": "Other intangible assets" } } }, "localname": "FiniteLivedIntangibleAssetsNet", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsActivityDetails", "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsDetails", "http://cabotcmp.com/role/LONGLIVEDASSETIMPAIRMENTWOODTREATMENTLonglivedAssetImpairmentDetails", "http://cabotcmp.com/role/LONGLIVEDASSETIMPAIRMENTWOODTREATMENTNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetsNetAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Finite-Lived Intangible Assets, Net [Abstract]", "terseLabel": "Other intangible assets subject to amortization:" } } }, "localname": "FiniteLivedIntangibleAssetsNetAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FinitelivedIntangibleAssetsAcquired1": { "auth_ref": [ "r284" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition.", "label": "Finite-lived Intangible Assets Acquired", "verboseLabel": "Intangible assets acquired" } } }, "localname": "FinitelivedIntangibleAssetsAcquired1", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONIdentifiableIntangibleAssetsAcquiredDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ForeignCountryMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Designated tax departments of governments entitled to levy and collect income taxes from the entity outside the entity's country of domicile.", "label": "Foreign Tax Authority [Member]", "terseLabel": "Foreign" } } }, "localname": "ForeignCountryMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESNetOperatingLossCapitalandTaxCreditCarryforwardsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ForeignCurrencyTransactionGainLossUnrealized": { "auth_ref": [ "r119", "r650", "r651" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 17.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount before tax of foreign currency transaction unrealized gain (loss) recognized in the income statement.", "label": "Foreign Currency Transaction Gain (Loss), Unrealized", "negatedLabel": "Non-cash foreign exchange (gain) loss" } } }, "localname": "ForeignCurrencyTransactionGainLossUnrealized", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_ForeignExchangeContractMember": { "auth_ref": [ "r408", "r621" ], "lang": { "en-US": { "role": { "documentation": "Derivative instrument whose primary underlying risk is tied to foreign exchange rates.", "label": "Foreign Exchange Contract [Member]", "terseLabel": "Foreign exchange contracts" } } }, "localname": "ForeignExchangeContractMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSEffectofDerivativeInstrumentsontheConsolidatedStatementofIncomeDetails", "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSFairValueofDerivativeInstrumentsintheConsolidatedBalanceSheetDetails", "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSNotionalamountsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ForeignIncomeTaxExpenseBenefitContinuingOperations": { "auth_ref": [ "r136" ], "calculation": { "http://cabotcmp.com/role/INCOMETAXESIncomeBeforeIncomeTaxesandTaxesonIncomeDetails": { "order": 1.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of current and deferred foreign income tax expense (benefit) attributable to income (loss) from continuing operations.", "label": "Foreign Income Tax Expense (Benefit), Continuing Operations", "totalLabel": "Total" } } }, "localname": "ForeignIncomeTaxExpenseBenefitContinuingOperations", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESIncomeBeforeIncomeTaxesandTaxesonIncomeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ForeignIncomeTaxExpenseBenefitContinuingOperationsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Foreign Income Tax Expense (Benefit), Continuing Operations [Abstract]", "terseLabel": "Foreign:" } } }, "localname": "ForeignIncomeTaxExpenseBenefitContinuingOperationsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESIncomeBeforeIncomeTaxesandTaxesonIncomeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ForeignPlanMember": { "auth_ref": [ "r461", "r465", "r478" ], "lang": { "en-US": { "role": { "documentation": "Location of employer sponsoring plan, designed to provide retirement benefits, not determined as principal place of business. Includes, but is not limited to, defined benefit and defined contribution plans.", "label": "Foreign Plan [Member]", "terseLabel": "Foreign Plan" } } }, "localname": "ForeignPlanMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSNarrativeDetails", "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSPurchaseObligationsinForeignJurisdictionsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FurnitureAndFixturesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases.", "label": "Furniture and Fixtures [Member]", "terseLabel": "Furniture and fixtures" } } }, "localname": "FurnitureAndFixturesMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/PROPERTYPLANTANDEQUIPMENTDetails", "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPropertyPlantandEquipmentDetails" ], "xbrltype": "domainItemType" }, "us-gaap_GainLossOnSaleOfInvestments": { "auth_ref": [ "r118" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 18.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The net realized gain (loss) on investments sold during the period, not including gains (losses) on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, which, for cash flow reporting, is a component of proceeds from investing activities.", "label": "Gain (Loss) on Sale of Investments", "negatedLabel": "Realized loss on the sale of available-for-sale securities" } } }, "localname": "GainLossOnSaleOfInvestments", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_GainLossOnSaleOfPropertyPlantEquipment": { "auth_ref": [ "r118" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 6.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.", "label": "Gain (Loss) on Disposition of Property Plant Equipment", "negatedLabel": "(Gain) on sale of assets" } } }, "localname": "GainLossOnSaleOfPropertyPlantEquipment", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_Goodwill": { "auth_ref": [ "r272", "r274", "r705" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS": { "order": 3.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.", "label": "Goodwill", "periodEndLabel": "Goodwill, ending balance", "periodStartLabel": "Goodwill, beginning balance", "terseLabel": "Goodwill" } } }, "localname": "Goodwill", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONNarrativeDetails", "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS", "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSGoodwillActivityDetails", "http://cabotcmp.com/role/LONGLIVEDASSETIMPAIRMENTWOODTREATMENTNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_GoodwillAcquiredDuringPeriod": { "auth_ref": [ "r275" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.", "label": "Goodwill, Acquired During Period", "terseLabel": "Other", "verboseLabel": "Goodwill" } } }, "localname": "GoodwillAcquiredDuringPeriod", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSGoodwillActivityDetails", "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Goodwill and Intangible Assets Disclosure [Abstract]", "terseLabel": "Goodwill and Intangible Assets [Abstract]" } } }, "localname": "GoodwillAndIntangibleAssetsDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock": { "auth_ref": [ "r298" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for goodwill and intangible assets.", "label": "Goodwill and Intangible Assets Disclosure [Text Block]", "verboseLabel": "GOODWILL AND OTHER INTANGIBLE ASSETS" } } }, "localname": "GoodwillAndIntangibleAssetsDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETS" ], "xbrltype": "textBlockItemType" }, "us-gaap_GoodwillAndIntangibleAssetsPolicyTextBlock": { "auth_ref": [ "r128", "r278", "r288" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for goodwill and intangible assets. This accounting policy also may address how an entity assesses and measures impairment of goodwill and intangible assets.", "label": "Goodwill and Intangible Assets, Policy [Policy Text Block]", "terseLabel": "Goodwill and Other Intangible Assets" } } }, "localname": "GoodwillAndIntangibleAssetsPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_GoodwillForeignCurrencyTranslationGainLoss": { "auth_ref": [ "r277" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.", "label": "Goodwill, Foreign Currency Translation Gain (Loss)", "terseLabel": "Foreign currency translation impact" } } }, "localname": "GoodwillForeignCurrencyTranslationGainLoss", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSGoodwillActivityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_GoodwillImpairmentLoss": { "auth_ref": [ "r118", "r273", "r276", "r279" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.", "label": "Goodwill, Impairment Loss", "terseLabel": "Goodwill impairment loss" } } }, "localname": "GoodwillImpairmentLoss", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_GoodwillLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Goodwill [Line Items]", "terseLabel": "Goodwill [Line Items]" } } }, "localname": "GoodwillLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSGoodwillActivityDetails", "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSNarrativeDetails", "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESGoodwillandOtherIntangibleAssetsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_GoodwillPeriodIncreaseDecrease": { "auth_ref": [ "r278" ], "lang": { "en-US": { "role": { "documentation": "Amount of increase (decrease) of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.", "label": "Goodwill, Period Increase (Decrease)", "terseLabel": "Goodwill arising from the Acquisition" } } }, "localname": "GoodwillPeriodIncreaseDecrease", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSGoodwillActivityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_GoodwillRollForward": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.", "label": "Goodwill [Roll Forward]", "terseLabel": "Goodwill [Roll Forward]" } } }, "localname": "GoodwillRollForward", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSGoodwillActivityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_GrossProfit": { "auth_ref": [ "r88", "r130", "r219", "r225", "r229", "r232", "r235", "r255", "r649" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFINCOME": { "order": 2.0, "parentTag": "us-gaap_OperatingIncomeLoss", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.", "label": "Gross Profit", "totalLabel": "Gross profit" } } }, "localname": "GrossProfit", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFINCOME", "http://cabotcmp.com/role/SELECTEDQUARTERLYOPERATINGRESULTSDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_HedgingDesignationAxis": { "auth_ref": [ "r610", "r624" ], "lang": { "en-US": { "role": { "documentation": "Information by designation of purpose of derivative instrument.", "label": "Hedging Designation [Axis]", "terseLabel": "Hedging Designation [Axis]" } } }, "localname": "HedgingDesignationAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSEffectofDerivativeInstrumentsontheConsolidatedStatementofIncomeDetails", "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSFairValueofDerivativeInstrumentsintheConsolidatedBalanceSheetDetails" ], "xbrltype": "stringItemType" }, "us-gaap_HedgingDesignationDomain": { "auth_ref": [ "r610" ], "lang": { "en-US": { "role": { "documentation": "Designation of purpose of derivative instrument.", "label": "Hedging Designation [Domain]", "terseLabel": "Hedging Designation [Domain]" } } }, "localname": "HedgingDesignationDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSEffectofDerivativeInstrumentsontheConsolidatedStatementofIncomeDetails", "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSFairValueofDerivativeInstrumentsintheConsolidatedBalanceSheetDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ImpairedLongLivedAssetsHeldAndUsedAssetNameDomain": { "auth_ref": [ "r306" ], "lang": { "en-US": { "role": { "documentation": "The name of the impaired assets to be held and used by the entity.", "label": "Impaired Long-Lived Assets Held and Used, Asset Name [Domain]", "terseLabel": "Impaired Long-Lived Assets Held and Used, Asset Name [Domain]" } } }, "localname": "ImpairedLongLivedAssetsHeldAndUsedAssetNameDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONNarrativeDetails", "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSNarrativeDetails", "http://cabotcmp.com/role/LONGLIVEDASSETIMPAIRMENTWOODTREATMENTLonglivedAssetImpairmentDetails", "http://cabotcmp.com/role/LONGLIVEDASSETIMPAIRMENTWOODTREATMENTNarrativeDetails", "http://cabotcmp.com/role/PROPERTYPLANTANDEQUIPMENTDetails", "http://cabotcmp.com/role/SEGMENTREPORTINGReconciliationfromSegmentAdjustedEBITDADetails" ], "xbrltype": "domainItemType" }, "us-gaap_ImpairedLongLivedAssetsHeldAndUsedByTypeAxis": { "auth_ref": [ "r306" ], "lang": { "en-US": { "role": { "documentation": "This element represents the categories used to group impaired long-lived assets held and used by the type of asset.", "label": "Impaired Long-Lived Assets Held and Used by Type [Axis]", "terseLabel": "Impaired Long-Lived Assets Held and Used by Type [Axis]" } } }, "localname": "ImpairedLongLivedAssetsHeldAndUsedByTypeAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONNarrativeDetails", "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSNarrativeDetails", "http://cabotcmp.com/role/LONGLIVEDASSETIMPAIRMENTWOODTREATMENTLonglivedAssetImpairmentDetails", "http://cabotcmp.com/role/LONGLIVEDASSETIMPAIRMENTWOODTREATMENTNarrativeDetails", "http://cabotcmp.com/role/PROPERTYPLANTANDEQUIPMENTDetails", "http://cabotcmp.com/role/SEGMENTREPORTINGReconciliationfromSegmentAdjustedEBITDADetails" ], "xbrltype": "stringItemType" }, "us-gaap_ImpairedLongLivedAssetsHeldAndUsedLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Impaired Long-Lived Assets Held and Used [Line Items]", "terseLabel": "Impaired Long-Lived Assets Held and Used [Line Items]" } } }, "localname": "ImpairedLongLivedAssetsHeldAndUsedLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/LONGLIVEDASSETIMPAIRMENTWOODTREATMENTLonglivedAssetImpairmentDetails", "http://cabotcmp.com/role/LONGLIVEDASSETIMPAIRMENTWOODTREATMENTNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ImpairmentOfLongLivedAssetsHeldForUse": { "auth_ref": [ "r118", "r300", "r305" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 14.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).", "label": "Impairment of Long-Lived Assets Held-for-use", "terseLabel": "Impairment of assets", "verboseLabel": "Charges related to asset impairment of wood treatment business" } } }, "localname": "ImpairmentOfLongLivedAssetsHeldForUse", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS", "http://cabotcmp.com/role/PROPERTYPLANTANDEQUIPMENTDetails", "http://cabotcmp.com/role/SEGMENTREPORTINGReconciliationfromSegmentAdjustedEBITDADetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock": { "auth_ref": [ "r128", "r299", "r309" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for recognizing and measuring the impairment of long-lived assets. An entity also may disclose its accounting policy for long-lived assets to be sold. This policy excludes goodwill and intangible assets.", "label": "Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block]", "verboseLabel": "Impairment of Long-Lived Assets" } } }, "localname": "ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_IncomeLossAttributableToNoncontrollingInterest": { "auth_ref": [ "r89" ], "calculation": { "http://cabotcmp.com/role/INCOMETAXESIncomeBeforeIncomeTaxesandTaxesonIncomeDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount, before tax, of income (loss) attributable to noncontrolling interest. Includes, but is not limited to, income (loss) from continuing operations, discontinued operations and equity method investments.", "label": "Income (Loss) Attributable to Noncontrolling Interest, before Tax", "negatedTotalLabel": "Total" } } }, "localname": "IncomeLossAttributableToNoncontrollingInterest", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESIncomeBeforeIncomeTaxesandTaxesonIncomeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic": { "auth_ref": [ "r135", "r570" ], "calculation": { "http://cabotcmp.com/role/INCOMETAXESIncomeBeforeIncomeTaxesandTaxesonIncomeDetails": { "order": 1.0, "parentTag": "us-gaap_IncomeLossAttributableToNoncontrollingInterest", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations.", "label": "Income (Loss) from Continuing Operations before Income Taxes, Domestic", "terseLabel": "Domestic" } } }, "localname": "IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESIncomeBeforeIncomeTaxesandTaxesonIncomeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign": { "auth_ref": [ "r135", "r570" ], "calculation": { "http://cabotcmp.com/role/INCOMETAXESIncomeBeforeIncomeTaxesandTaxesonIncomeDetails": { "order": 2.0, "parentTag": "us-gaap_IncomeLossAttributableToNoncontrollingInterest", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile.", "label": "Income (Loss) from Continuing Operations before Income Taxes, Foreign", "terseLabel": "Foreign" } } }, "localname": "IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESIncomeBeforeIncomeTaxesandTaxesonIncomeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments": { "auth_ref": [ "r135", "r219", "r225", "r229", "r232", "r235" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFINCOME": { "order": 2.0, "parentTag": "us-gaap_NetIncomeLoss", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments.", "label": "Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest", "totalLabel": "Income before income taxes" } } }, "localname": "IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFINCOME" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestmentsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest [Abstract]", "terseLabel": "Income Before Income Taxes [Abstract]" } } }, "localname": "IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestmentsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESIncomeBeforeIncomeTaxesandTaxesonIncomeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_IncomeStatementAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Income Statement [Abstract]", "terseLabel": "Income Statement [Abstract]" } } }, "localname": "IncomeStatementAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_IncomeStatementLocationAxis": { "auth_ref": [ "r307" ], "lang": { "en-US": { "role": { "documentation": "Information by location in the income statement.", "label": "Income Statement Location [Axis]", "terseLabel": "Income Statement Location [Axis]" } } }, "localname": "IncomeStatementLocationAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSEffectofDerivativeInstrumentsontheConsolidatedStatementofIncomeDetails", "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSShareBasedCompensationExpenseDetails" ], "xbrltype": "stringItemType" }, "us-gaap_IncomeStatementLocationDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Location in the income statement.", "label": "Income Statement Location [Domain]", "terseLabel": "Income Statement Location [Domain]" } } }, "localname": "IncomeStatementLocationDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSEffectofDerivativeInstrumentsontheConsolidatedStatementofIncomeDetails", "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSShareBasedCompensationExpenseDetails" ], "xbrltype": "domainItemType" }, "us-gaap_IncomeTaxAuthorityAxis": { "auth_ref": [ "r542" ], "lang": { "en-US": { "role": { "documentation": "Information by tax jurisdiction.", "label": "Income Tax Authority [Axis]", "terseLabel": "Income Tax Authority [Axis]" } } }, "localname": "IncomeTaxAuthorityAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESNetOperatingLossCapitalandTaxCreditCarryforwardsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_IncomeTaxAuthorityDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Agency, division or body classification that levies income taxes, examines tax returns for compliance, or grants exemptions from or makes other decisions pertaining to income taxes.", "label": "Income Tax Authority [Domain]", "terseLabel": "Income Tax Authority [Domain]" } } }, "localname": "IncomeTaxAuthorityDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESNetOperatingLossCapitalandTaxCreditCarryforwardsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_IncomeTaxDisclosureAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Income Tax Disclosure [Abstract]", "terseLabel": "Income Tax Disclosure [Abstract]" } } }, "localname": "IncomeTaxDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_IncomeTaxDisclosureTextBlock": { "auth_ref": [ "r539", "r548", "r553", "r565", "r572", "r574", "r575", "r576" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.", "label": "Income Tax Disclosure [Text Block]", "verboseLabel": "INCOME TAXES" } } }, "localname": "IncomeTaxDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXES" ], "xbrltype": "textBlockItemType" }, "us-gaap_IncomeTaxExpenseBenefit": { "auth_ref": [ "r132", "r165", "r166", "r217", "r537", "r566", "r573", "r734" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFINCOME": { "order": 1.0, "parentTag": "us-gaap_NetIncomeLoss", "weight": -1.0 }, "http://cabotcmp.com/role/INCOMETAXESIncomeBeforeIncomeTaxesandTaxesonIncomeDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.", "label": "Income Tax Expense (Benefit)", "negatedLabel": "Recognized tax benefit", "terseLabel": "Income taxes", "totalLabel": "Total U.S. and foreign", "verboseLabel": "Provision for income taxes" } } }, "localname": "IncomeTaxExpenseBenefit", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFINCOME", "http://cabotcmp.com/role/INCOMETAXESIncomeBeforeIncomeTaxesandTaxesonIncomeDetails", "http://cabotcmp.com/role/LONGLIVEDASSETIMPAIRMENTWOODTREATMENTNarrativeDetails", "http://cabotcmp.com/role/SEGMENTREPORTINGReconciliationfromSegmentAdjustedEBITDADetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxPolicyTextBlock": { "auth_ref": [ "r78", "r128", "r533", "r534", "r548", "r549", "r552", "r560", "r756" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements.", "label": "Income Tax, Policy [Policy Text Block]", "terseLabel": "Income Taxes" } } }, "localname": "IncomeTaxPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_IncomeTaxesPaidNet": { "auth_ref": [ "r122" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.", "label": "Income Taxes Paid, Net", "terseLabel": "Cash paid for income taxes (net of refunds received)" } } }, "localname": "IncomeTaxesPaidNet", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInAccountsPayable": { "auth_ref": [ "r117" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 15.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.", "label": "Increase (Decrease) in Accounts Payable", "terseLabel": "Accounts payable" } } }, "localname": "IncreaseDecreaseInAccountsPayable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInAccountsReceivable": { "auth_ref": [ "r117" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 2.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services.", "label": "Increase (Decrease) in Accounts Receivable", "negatedLabel": "Accounts receivable" } } }, "localname": "IncreaseDecreaseInAccountsReceivable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInInventories": { "auth_ref": [ "r117" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 7.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities.", "label": "Increase (Decrease) in Inventories", "negatedLabel": "Inventories" } } }, "localname": "IncreaseDecreaseInInventories", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInOperatingCapitalAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Increase (Decrease) in Operating Capital [Abstract]", "terseLabel": "Changes in operating assets and liabilities:" } } }, "localname": "IncreaseDecreaseInOperatingCapitalAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "stringItemType" }, "us-gaap_IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities": { "auth_ref": [ "r117" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 11.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The increase (decrease) during the reporting period in other obligations or expenses incurred but not yet paid.", "label": "Increase (Decrease) in Other Accounts Payable and Accrued Liabilities", "terseLabel": "Accrued expenses, income taxes payable and other liabilities" } } }, "localname": "IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets": { "auth_ref": [ "r117" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 19.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of increase (decrease) in prepaid expenses, and assets classified as other.", "label": "Increase (Decrease) in Prepaid Expense and Other Assets", "negatedLabel": "Prepaid expenses and other assets" } } }, "localname": "IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInStockholdersEquityRollForward": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.", "label": "Increase (Decrease) in Stockholders' Equity [Roll Forward]", "terseLabel": "Increase (Decrease) in Stockholders' Equity [Roll Forward]" } } }, "localname": "IncreaseDecreaseInStockholdersEquityRollForward", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY" ], "xbrltype": "stringItemType" }, "us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements": { "auth_ref": [ "r171", "r172", "r173", "r181" ], "calculation": { "http://cabotcmp.com/role/EARNINGSPERSHAREDetails": { "order": 2.0, "parentTag": "us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding", "weight": 1.0 } }, "lang": { "en-US": { "role": { "documentation": "Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.", "label": "Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements", "terseLabel": "Weighted average effect of dilutive securities (in shares)" } } }, "localname": "IncrementalCommonSharesAttributableToShareBasedPaymentArrangements", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EARNINGSPERSHAREDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_IndefiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTable": { "auth_ref": [ "r286", "r585" ], "lang": { "en-US": { "role": { "documentation": "A table containing detailed information about the characteristics and cost, by total and major class, of indefinite-lived intangible assets acquired as part of a business combination. Indefinite-lived intangible assets are assets that have no physical form, but have expected future economic benefit. The future benefit is not expected to diminish over a stated period of time. Acquired indefinite-lived intangible assets are disclosed by major class (assets that can be grouped together because they are similar, either by their nature or by their use in operations of the entity) and in total.", "label": "Indefinite-lived Intangible Assets Acquired as Part of Business Combination [Table]", "terseLabel": "Indefinite-lived Intangible Assets Acquired as Part of Business Combination [Table]" } } }, "localname": "IndefiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONIdentifiableIntangibleAssetsAcquiredDetails" ], "xbrltype": "stringItemType" }, "us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis": { "auth_ref": [ "r286", "r294" ], "lang": { "en-US": { "role": { "documentation": "Information by type or class of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.", "label": "Indefinite-lived Intangible Assets [Axis]", "terseLabel": "Indefinite-lived Intangible Assets [Axis]" } } }, "localname": "IndefiniteLivedIntangibleAssetsByMajorClassAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONIdentifiableIntangibleAssetsAcquiredDetails", "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsActivityDetails", "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Indefinite-lived Intangible Assets [Line Items]", "terseLabel": "Indefinite-lived Intangible Assets [Line Items]" } } }, "localname": "IndefiniteLivedIntangibleAssetsByMajorClassLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsActivityDetails", "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill": { "auth_ref": [ "r294" ], "calculation": { "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsDetails": { "order": 2.0, "parentTag": "us-gaap_IntangibleAssetsGrossExcludingGoodwill", "weight": 1.0 }, "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsDetails_1": { "order": 1.0, "parentTag": "us-gaap_IntangibleAssetsNetExcludingGoodwill", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.", "label": "Indefinite-lived Intangible Assets (Excluding Goodwill)", "periodEndLabel": "Other indefinite-lived intangibles, ending balance", "periodStartLabel": "Other indefinite-lived intangibles, beginning balance", "terseLabel": "Other intangible assets not subject to amortization", "verboseLabel": "Carrying value of intangible assets" } } }, "localname": "IndefiniteLivedIntangibleAssetsExcludingGoodwill", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsActivityDetails", "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsDetails", "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwillAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Indefinite-lived Intangible Assets (Excluding Goodwill) [Abstract]", "terseLabel": "Other intangible assets not subject to amortization:" } } }, "localname": "IndefiniteLivedIntangibleAssetsExcludingGoodwillAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain": { "auth_ref": [ "r286", "r294" ], "lang": { "en-US": { "role": { "documentation": "The major class of indefinite-lived intangible asset (for example, trade names, etc. but not all-inclusive), excluding goodwill. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of the company.", "label": "Indefinite-lived Intangible Assets, Major Class Name [Domain]", "terseLabel": "Indefinite-lived Intangible Assets, Major Class Name [Domain]" } } }, "localname": "IndefiniteLivedIntangibleAssetsMajorClassNameDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONIdentifiableIntangibleAssetsAcquiredDetails", "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsActivityDetails", "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_IndefinitelivedIntangibleAssetsAcquired": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of increase in assets, excluding financial assets and goodwill, lacking physical substance with an indefinite life, from an acquisition.", "label": "Indefinite-lived Intangible Assets Acquired", "terseLabel": "Intangible assets acquired" } } }, "localname": "IndefinitelivedIntangibleAssetsAcquired", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONIdentifiableIntangibleAssetsAcquiredDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IntangibleAssetsGrossExcludingGoodwill": { "auth_ref": [], "calculation": { "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsDetails": { "order": 2.0, "parentTag": "us-gaap_IntangibleAssetsNetExcludingGoodwill", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount before accumulated amortization of intangible assets, excluding goodwill.", "label": "Intangible Assets, Gross (Excluding Goodwill)", "totalLabel": "Total other intangible assets, gross" } } }, "localname": "IntangibleAssetsGrossExcludingGoodwill", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsActivityDetails", "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IntangibleAssetsGrossExcludingGoodwillAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Intangible Assets, Gross (Excluding Goodwill) [Abstract]", "terseLabel": "Intangible Assets, Gross (Excluding Goodwill) [Abstract]" } } }, "localname": "IntangibleAssetsGrossExcludingGoodwillAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsActivityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_IntangibleAssetsNetExcludingGoodwill": { "auth_ref": [ "r281", "r289" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS": { "order": 4.0, "parentTag": "us-gaap_Assets", "weight": 1.0 }, "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsDetails": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsDetails_1": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.", "label": "Intangible Assets, Net (Excluding Goodwill)", "terseLabel": "Other intangible assets, net", "totalLabel": "Total other intangible assets, net" } } }, "localname": "IntangibleAssetsNetExcludingGoodwill", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS", "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsActivityDetails", "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestExpense": { "auth_ref": [ "r79", "r213", "r660", "r663", "r716" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFINCOME": { "order": 4.0, "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of the cost of borrowed funds accounted for as interest expense.", "label": "Interest Expense", "terseLabel": "Interest expense" } } }, "localname": "InterestExpense", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFINCOME", "http://cabotcmp.com/role/SEGMENTREPORTINGReconciliationfromSegmentAdjustedEBITDADetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestExpenseMember": { "auth_ref": [ "r622" ], "lang": { "en-US": { "role": { "documentation": "Primary financial statement caption encompassing interest expense.", "label": "Interest Expense [Member]", "terseLabel": "Interest expense" } } }, "localname": "InterestExpenseMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSEffectofDerivativeInstrumentsontheConsolidatedStatementofIncomeDetails" ], "xbrltype": "domainItemType" }, "us-gaap_InterestIncomeOther": { "auth_ref": [], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFINCOME": { "order": 1.0, "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of interest income earned from interest bearing assets classified as other.", "label": "Interest Income, Other", "terseLabel": "Interest income" } } }, "localname": "InterestIncomeOther", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFINCOME" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestPaidNet": { "auth_ref": [ "r111", "r114", "r122" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.", "label": "Interest Paid, Excluding Capitalized Interest, Operating Activities", "terseLabel": "Cash paid for interest" } } }, "localname": "InterestPaidNet", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestPayableCurrent": { "auth_ref": [ "r11", "r12", "r48" ], "calculation": { "http://cabotcmp.com/role/ACCRUEDEXPENSESINCOMETAXESPAYABLEANDOTHERCURRENTLIABILITIESDetails": { "order": 1.0, "parentTag": "us-gaap_OtherLiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).", "label": "Interest Payable, Current", "terseLabel": "Accrued interest" } } }, "localname": "InterestPayableCurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ACCRUEDEXPENSESINCOMETAXESPAYABLEANDOTHERCURRENTLIABILITIESDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestRateSwapMember": { "auth_ref": [ "r620" ], "lang": { "en-US": { "role": { "documentation": "Forward based contracts in which two parties agree to swap periodic payments that are fixed at the outset of the swap contract with variable payments based on a market interest rate (index rate) over a specified period.", "label": "Interest Rate Swap [Member]", "terseLabel": "Interest rate swap contract" } } }, "localname": "InterestRateSwapMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSEffectofDerivativeInstrumentsontheConsolidatedStatementofIncomeDetails", "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSFairValueofDerivativeInstrumentsintheConsolidatedBalanceSheetDetails", "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSNarrativeDetails", "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSNotionalamountsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_InventoryDisclosureAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Inventory Disclosure [Abstract]", "terseLabel": "Inventory Disclosure [Abstract]" } } }, "localname": "InventoryDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_InventoryDisclosureTextBlock": { "auth_ref": [ "r271" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory.", "label": "Inventory Disclosure [Text Block]", "verboseLabel": "INVENTORIES" } } }, "localname": "InventoryDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INVENTORIES" ], "xbrltype": "textBlockItemType" }, "us-gaap_InventoryFinishedGoodsNetOfReserves": { "auth_ref": [ "r30", "r270" ], "calculation": { "http://cabotcmp.com/role/INVENTORIESDetails": { "order": 3.0, "parentTag": "us-gaap_InventoryNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.", "label": "Inventory, Finished Goods, Net of Reserves", "terseLabel": "Finished goods" } } }, "localname": "InventoryFinishedGoodsNetOfReserves", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INVENTORIESDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InventoryNet": { "auth_ref": [ "r4", "r55" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS": { "order": 3.0, "parentTag": "us-gaap_AssetsCurrent", "weight": 1.0 }, "http://cabotcmp.com/role/INVENTORIESDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.", "label": "Inventory, Net", "totalLabel": "Total", "verboseLabel": "Inventories" } } }, "localname": "InventoryNet", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS", "http://cabotcmp.com/role/INVENTORIESDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InventoryNetItemsNetOfReserveAlternativeAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Inventory, Net, Items Net of Reserve Alternative [Abstract]", "terseLabel": "Inventory, Net, Items Net of Reserve Alternative [Abstract]" } } }, "localname": "InventoryNetItemsNetOfReserveAlternativeAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INVENTORIESDetails" ], "xbrltype": "stringItemType" }, "us-gaap_InventoryPolicyTextBlock": { "auth_ref": [ "r13", "r56", "r128", "r188", "r268", "r269", "r271" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of inventory accounting policy for inventory classes, including, but not limited to, basis for determining inventory amounts, methods by which amounts are added and removed from inventory classes, loss recognition on impairment of inventories, and situations in which inventories are stated above cost.", "label": "Inventory, Policy [Policy Text Block]", "terseLabel": "Inventories" } } }, "localname": "InventoryPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_InventoryRawMaterialsNetOfReserves": { "auth_ref": [ "r32", "r270" ], "calculation": { "http://cabotcmp.com/role/INVENTORIESDetails": { "order": 1.0, "parentTag": "us-gaap_InventoryNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of unprocessed items to be consumed in the manufacturing or production process.", "label": "Inventory, Raw Materials, Net of Reserves", "terseLabel": "Raw materials" } } }, "localname": "InventoryRawMaterialsNetOfReserves", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INVENTORIESDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InventoryWorkInProcessNetOfReserves": { "auth_ref": [ "r31", "r270" ], "calculation": { "http://cabotcmp.com/role/INVENTORIESDetails": { "order": 2.0, "parentTag": "us-gaap_InventoryNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.", "label": "Inventory, Work in Process, Net of Reserves", "terseLabel": "Work in process" } } }, "localname": "InventoryWorkInProcessNetOfReserves", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INVENTORIESDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InvestmentIncomeInterest": { "auth_ref": [ "r92", "r212" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities.", "label": "Investment Income, Interest", "negatedLabel": "Interest income" } } }, "localname": "InvestmentIncomeInterest", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SEGMENTREPORTINGReconciliationfromSegmentAdjustedEBITDADetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InvestmentsAndOtherNoncurrentAssets": { "auth_ref": [], "calculation": { "http://cabotcmp.com/role/OTHERLONGTERMASSETSDetails": { "order": 1.0, "parentTag": "us-gaap_OtherAssetsNoncurrent", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of investments, and noncurrent assets classified as other.", "label": "Investments and Other Noncurrent Assets", "terseLabel": "Long-term SERP investments" } } }, "localname": "InvestmentsAndOtherNoncurrentAssets", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/OTHERLONGTERMASSETSDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InvestmentsFairValueDisclosure": { "auth_ref": [ "r633" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.", "label": "Investments, Fair Value Disclosure", "terseLabel": "Other long-term investments" } } }, "localname": "InvestmentsFairValueDisclosure", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/FAIRVALUEOFFINANCIALINSTRUMENTSFairValueDisclosureDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LandImprovementsMember": { "auth_ref": [ "r8" ], "lang": { "en-US": { "role": { "documentation": "Additions or improvements to real estate held.", "label": "Land Improvements [Member]", "terseLabel": "Land Improvements" } } }, "localname": "LandImprovementsMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPropertyPlantandEquipmentDetails" ], "xbrltype": "domainItemType" }, "us-gaap_LandMember": { "auth_ref": [ "r379" ], "lang": { "en-US": { "role": { "documentation": "Part of earth's surface not covered by water.", "label": "Land [Member]", "terseLabel": "Land" } } }, "localname": "LandMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/PROPERTYPLANTANDEQUIPMENTDetails" ], "xbrltype": "domainItemType" }, "us-gaap_LeaseCost": { "auth_ref": [ "r684", "r686" ], "calculation": { "http://cabotcmp.com/role/LEASESComponentsofLeaseExpenseDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of lease cost recognized by lessee for lease contract.", "label": "Lease, Cost", "totalLabel": "Total lease cost" } } }, "localname": "LeaseCost", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/LEASESComponentsofLeaseExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LeaseCostTableTextBlock": { "auth_ref": [ "r684" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income.", "label": "Lease, Cost [Table Text Block]", "terseLabel": "Components of lease expense" } } }, "localname": "LeaseCostTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/LEASESTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_LeasesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Leases [Abstract]", "terseLabel": "Leases [Abstract]" } } }, "localname": "LeasesAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_LegalCostsPolicyTextBlock": { "auth_ref": [ "r127", "r128", "r335" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for legal costs incurred to protect or defend the entity's assets and rights, or to obtain assets, including monetary damages, or to obtain rights.", "label": "Legal Costs, Policy [Policy Text Block]", "terseLabel": "Legal Costs" } } }, "localname": "LegalCostsPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_LesseeLeasesPolicyTextBlock": { "auth_ref": [ "r677" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for leasing arrangement entered into by lessee.", "label": "Lessee, Leases [Policy Text Block]", "terseLabel": "Leases" } } }, "localname": "LesseeLeasesPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock": { "auth_ref": [ "r685" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position.", "label": "Lessee, Operating Lease, Liability, Maturity [Table Text Block]", "terseLabel": "Schedule of future maturities of operating lease liabilities" } } }, "localname": "LesseeOperatingLeaseLiabilityMaturityTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/LEASESTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue": { "auth_ref": [ "r685" ], "calculation": { "http://cabotcmp.com/role/LEASESFutureMaturitiesofOperatingLeaseLiabilitiesDetails": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://cabotcmp.com/role/LEASESFutureMaturitiesofOperatingLeaseLiabilitiesDetails_1": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease.", "label": "Lessee, Operating Lease, Liability, to be Paid", "totalLabel": "Total future lease payments" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/LEASESFutureMaturitiesofOperatingLeaseLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive": { "auth_ref": [ "r685" ], "calculation": { "http://cabotcmp.com/role/LEASESFutureMaturitiesofOperatingLeaseLiabilitiesDetails": { "order": 5.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease due after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Lessee, Operating Lease, Liability, to be Paid, after Year Five", "terseLabel": "2026 and future years" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/LEASESFutureMaturitiesofOperatingLeaseLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths": { "auth_ref": [ "r685" ], "calculation": { "http://cabotcmp.com/role/LEASESFutureMaturitiesofOperatingLeaseLiabilitiesDetails": { "order": 6.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Lessee, Operating Lease, Liability, to be Paid, Year One", "terseLabel": "2021" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/LEASESFutureMaturitiesofOperatingLeaseLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive": { "auth_ref": [ "r685" ], "calculation": { "http://cabotcmp.com/role/LEASESFutureMaturitiesofOperatingLeaseLiabilitiesDetails": { "order": 2.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Lessee, Operating Lease, Liability, to be Paid, Year Five", "terseLabel": "2025" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearFive", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/LEASESFutureMaturitiesofOperatingLeaseLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour": { "auth_ref": [ "r685" ], "calculation": { "http://cabotcmp.com/role/LEASESFutureMaturitiesofOperatingLeaseLiabilitiesDetails": { "order": 4.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Lessee, Operating Lease, Liability, to be Paid, Year Four", "terseLabel": "2024" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearFour", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/LEASESFutureMaturitiesofOperatingLeaseLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree": { "auth_ref": [ "r685" ], "calculation": { "http://cabotcmp.com/role/LEASESFutureMaturitiesofOperatingLeaseLiabilitiesDetails": { "order": 3.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Lessee, Operating Lease, Liability, to be Paid, Year Three", "terseLabel": "2023" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearThree", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/LEASESFutureMaturitiesofOperatingLeaseLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo": { "auth_ref": [ "r685" ], "calculation": { "http://cabotcmp.com/role/LEASESFutureMaturitiesofOperatingLeaseLiabilitiesDetails": { "order": 1.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Lessee, Operating Lease, Liability, to be Paid, Year Two", "terseLabel": "2022" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearTwo", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/LEASESFutureMaturitiesofOperatingLeaseLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount": { "auth_ref": [ "r685" ], "calculation": { "http://cabotcmp.com/role/LEASESFutureMaturitiesofOperatingLeaseLiabilitiesDetails_1": { "order": 2.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease.", "label": "Lessee, Operating Lease, Liability, Undiscounted Excess Amount", "terseLabel": "Less: Imputed interest" } } }, "localname": "LesseeOperatingLeaseLiabilityUndiscountedExcessAmount", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/LEASESFutureMaturitiesofOperatingLeaseLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseTermOfContract": { "auth_ref": [ "r678" ], "lang": { "en-US": { "role": { "documentation": "Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.", "label": "Lessee, Operating Lease, Term of Contract", "terseLabel": "Term of cancellable and noncancellable leases" } } }, "localname": "LesseeOperatingLeaseTermOfContract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/LEASESDetails" ], "xbrltype": "durationItemType" }, "us-gaap_LesseeOperatingLeasesTextBlock": { "auth_ref": [ "r687" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for operating leases of lessee. Includes, but is not limited to, description of operating lease and maturity analysis of operating lease liability.", "label": "Lessee, Operating Leases [Text Block]", "terseLabel": "Leases" } } }, "localname": "LesseeOperatingLeasesTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/LEASES" ], "xbrltype": "textBlockItemType" }, "us-gaap_LetterOfCreditMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "A document typically issued by a financial institution which acts as a guarantee of payment to a beneficiary, or as the source of payment for a specific transaction (for example, wiring funds to a foreign exporter if and when specified merchandise is accepted pursuant to the terms of the letter of credit).", "label": "Letter of Credit [Member]", "terseLabel": "Letter of credit" } } }, "localname": "LetterOfCreditMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTNarrativeDetails" ], "xbrltype": "domainItemType" }, "us-gaap_Liabilities": { "auth_ref": [ "r47", "r130", "r227", "r255", "r599", "r603", "r604", "r649" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS": { "order": 2.0, "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.", "label": "Liabilities", "totalLabel": "Total liabilities" } } }, "localname": "Liabilities", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS" ], "xbrltype": "monetaryItemType" }, "us-gaap_LiabilitiesAndStockholdersEquity": { "auth_ref": [ "r28", "r130", "r255", "r649", "r710", "r727" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any.", "label": "Liabilities and Equity", "totalLabel": "Total liabilities and stockholders\u2019 equity" } } }, "localname": "LiabilitiesAndStockholdersEquity", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS" ], "xbrltype": "monetaryItemType" }, "us-gaap_LiabilitiesAndStockholdersEquityAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Liabilities and Equity [Abstract]", "terseLabel": "LIABILITIES AND STOCKHOLDERS\u2019 EQUITY" } } }, "localname": "LiabilitiesAndStockholdersEquityAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS", "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETSParenthetical" ], "xbrltype": "stringItemType" }, "us-gaap_LiabilitiesCurrent": { "auth_ref": [ "r49", "r130", "r255", "r599", "r603", "r604", "r649" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS": { "order": 1.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer.", "label": "Liabilities, Current", "totalLabel": "Total current liabilities" } } }, "localname": "LiabilitiesCurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS" ], "xbrltype": "monetaryItemType" }, "us-gaap_LiabilitiesCurrentAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Liabilities, Current [Abstract]", "terseLabel": "Current liabilities:" } } }, "localname": "LiabilitiesCurrentAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS" ], "xbrltype": "stringItemType" }, "us-gaap_LiabilitiesFairValueDisclosureAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Liabilities, Fair Value Disclosure [Abstract]", "terseLabel": "Liabilities:" } } }, "localname": "LiabilitiesFairValueDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/FAIRVALUEOFFINANCIALINSTRUMENTSFairValueDisclosureDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LiabilityForCatastropheClaimsCarryingAmount": { "auth_ref": [ "r735" ], "calculation": { "http://cabotcmp.com/role/ACCRUEDEXPENSESINCOMETAXESPAYABLEANDOTHERCURRENTLIABILITIESDetails": { "order": 11.0, "parentTag": "us-gaap_OtherLiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The amount of estimated liability as of the balance sheet date for the specific conflagration, earthquake, windstorm, explosion, or similar event.", "label": "Liability for Catastrophe Claims, Carrying Amount", "terseLabel": "KMG - Bernuth warehouse fire-related (See Note 20)" } } }, "localname": "LiabilityForCatastropheClaimsCarryingAmount", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ACCRUEDEXPENSESINCOMETAXESPAYABLEANDOTHERCURRENTLIABILITIESDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LineOfCreditFacilityAxis": { "auth_ref": [ "r45", "r133" ], "lang": { "en-US": { "role": { "documentation": "Information by name of lender, which may be a single entity (for example, but not limited to, a bank, pension fund, venture capital firm) or a group of entities that participate in the line of credit.", "label": "Lender Name [Axis]", "terseLabel": "Lender Name [Axis]" } } }, "localname": "LineOfCreditFacilityAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LineOfCreditFacilityLenderDomain": { "auth_ref": [ "r45" ], "lang": { "en-US": { "role": { "documentation": "Identification of the lender, which may be a single entity (for example, a bank, pension fund, venture capital firm) or a group of entities that participate in the line of credit, including a letter of credit facility.", "label": "Line of Credit Facility, Lender [Domain]", "terseLabel": "Line of Credit Facility, Lender [Domain]" } } }, "localname": "LineOfCreditFacilityLenderDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTNarrativeDetails" ], "xbrltype": "domainItemType" }, "us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity": { "auth_ref": [ "r45" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.", "label": "Line of Credit Facility, Maximum Borrowing Capacity", "terseLabel": "Line of credit facility, borrowing capacity" } } }, "localname": "LineOfCreditFacilityMaximumBorrowingCapacity", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LineOfCreditMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "A contractual arrangement with a lender under which borrowings can be made up to a specific amount at any point in time, and under which borrowings outstanding may be either short-term or long-term, depending upon the particulars.", "label": "Line of Credit [Member]", "terseLabel": "Line of credit" } } }, "localname": "LineOfCreditMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTNarrativeDetails" ], "xbrltype": "domainItemType" }, "us-gaap_LitigationReserveCurrent": { "auth_ref": [ "r52", "r332", "r333" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Carrying amount of reserve for known or estimated probable loss from litigation, which may include attorneys' fees and other litigation costs, which is expected to be paid within one year of the date of the statement of financial position.", "label": "Estimated Litigation Liability, Current", "terseLabel": "Estimated reserve, remaining" } } }, "localname": "LitigationReserveCurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/COMMITMENTSANDCONTINGENCIESNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LondonInterbankOfferedRateLIBORMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Interest rate at which a bank borrows funds from other banks in the London interbank market.", "label": "London Interbank Offered Rate (LIBOR) [Member]", "terseLabel": "LIBOR" } } }, "localname": "LondonInterbankOfferedRateLIBORMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTNarrativeDetails", "http://cabotcmp.com/role/DEBTTotalDebtDetails" ], "xbrltype": "domainItemType" }, "us-gaap_LongMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Indicates an ownership position in, or purchase of, a security.", "label": "Long [Member]", "terseLabel": "Buy" } } }, "localname": "LongMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSNotionalamountsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_LongTermDebt": { "auth_ref": [ "r19", "r343", "r709", "r724" ], "calculation": { "http://cabotcmp.com/role/DEBTPrincipalRepaymentsDetails": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://cabotcmp.com/role/DEBTTotalDebtDetails": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://cabotcmp.com/role/DEBTTotalDebtDetails_1": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.", "label": "Long-term Debt", "totalLabel": "Total debt" } } }, "localname": "LongTermDebt", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTPrincipalRepaymentsDetails", "http://cabotcmp.com/role/DEBTTotalDebtDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LongTermDebtAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Long-term Debt, Unclassified [Abstract]", "terseLabel": "Long-term Debt, Unclassified [Abstract]" } } }, "localname": "LongTermDebtAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LongTermDebtByMaturityAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Long-term Debt, Fiscal Year Maturity [Abstract]", "terseLabel": "Long-term Debt, Fiscal Year Maturity [Abstract]" } } }, "localname": "LongTermDebtByMaturityAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTPrincipalRepaymentsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LongTermDebtCurrent": { "auth_ref": [ "r46" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS": { "order": 3.0, "parentTag": "us-gaap_LiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.", "label": "Long-term Debt, Current Maturities", "terseLabel": "Current portion of long-term debt" } } }, "localname": "LongTermDebtCurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS" ], "xbrltype": "monetaryItemType" }, "us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive": { "auth_ref": [ "r140", "r339" ], "calculation": { "http://cabotcmp.com/role/DEBTPrincipalRepaymentsDetails": { "order": 4.0, "parentTag": "us-gaap_LongTermDebt", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Long-Term Debt, Maturity, after Year Five", "terseLabel": "Thereafter" } } }, "localname": "LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTPrincipalRepaymentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths": { "auth_ref": [ "r140", "r339" ], "calculation": { "http://cabotcmp.com/role/DEBTPrincipalRepaymentsDetails": { "order": 5.0, "parentTag": "us-gaap_LongTermDebt", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Long-Term Debt, Maturity, Year One", "terseLabel": "2021" } } }, "localname": "LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTPrincipalRepaymentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive": { "auth_ref": [ "r140", "r339" ], "calculation": { "http://cabotcmp.com/role/DEBTPrincipalRepaymentsDetails": { "order": 3.0, "parentTag": "us-gaap_LongTermDebt", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Long-Term Debt, Maturity, Year Five", "terseLabel": "2025" } } }, "localname": "LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTPrincipalRepaymentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour": { "auth_ref": [ "r140", "r339" ], "calculation": { "http://cabotcmp.com/role/DEBTPrincipalRepaymentsDetails": { "order": 1.0, "parentTag": "us-gaap_LongTermDebt", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Long-Term Debt, Maturity, Year Four", "terseLabel": "2024" } } }, "localname": "LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTPrincipalRepaymentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree": { "auth_ref": [ "r140", "r339" ], "calculation": { "http://cabotcmp.com/role/DEBTPrincipalRepaymentsDetails": { "order": 2.0, "parentTag": "us-gaap_LongTermDebt", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Long-Term Debt, Maturity, Year Three", "terseLabel": "2023" } } }, "localname": "LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTPrincipalRepaymentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo": { "auth_ref": [ "r140", "r339" ], "calculation": { "http://cabotcmp.com/role/DEBTPrincipalRepaymentsDetails": { "order": 6.0, "parentTag": "us-gaap_LongTermDebt", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Long-Term Debt, Maturity, Year Two", "terseLabel": "2022" } } }, "localname": "LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTPrincipalRepaymentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LongTermDebtNoncurrent": { "auth_ref": [ "r50" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS": { "order": 2.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 }, "http://cabotcmp.com/role/DEBTTotalDebtDetails_1": { "order": 1.0, "parentTag": "us-gaap_LongTermDebt", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.", "label": "Long-term Debt, Excluding Current Maturities", "terseLabel": "Long-term debt, net of current portion" } } }, "localname": "LongTermDebtNoncurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS", "http://cabotcmp.com/role/DEBTTotalDebtDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LongtermDebtTypeAxis": { "auth_ref": [ "r50" ], "lang": { "en-US": { "role": { "documentation": "Information by type of long-term debt.", "label": "Long-term Debt, Type [Axis]", "terseLabel": "Long-term Debt, Type [Axis]" } } }, "localname": "LongtermDebtTypeAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTNarrativeDetails", "http://cabotcmp.com/role/DEBTPrincipalRepaymentsDetails", "http://cabotcmp.com/role/DEBTTotalDebtDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LongtermDebtTypeDomain": { "auth_ref": [ "r50", "r340" ], "lang": { "en-US": { "role": { "documentation": "Type of long-term debt arrangement, such as notes, line of credit, commercial paper, asset-based financing, project financing, letter of credit financing. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the company, if longer.", "label": "Long-term Debt, Type [Domain]", "terseLabel": "Long-term Debt, Type [Domain]" } } }, "localname": "LongtermDebtTypeDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTNarrativeDetails", "http://cabotcmp.com/role/DEBTPrincipalRepaymentsDetails", "http://cabotcmp.com/role/DEBTTotalDebtDetails" ], "xbrltype": "domainItemType" }, "us-gaap_LossContingencyReceivable": { "auth_ref": [ "r337" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of receivable related to a loss contingency accrual. For example, an insurance recovery receivable.", "label": "Loss Contingency, Receivable", "terseLabel": "Loss contingency receivable" } } }, "localname": "LossContingencyReceivable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/COMMITMENTSANDCONTINGENCIESNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LossFromCatastrophes": { "auth_ref": [ "r94" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The charge against earnings in the period for the uninsured portion of a loss from a fire, explosion, or natural disaster (hurricane, earthquake).", "label": "Loss from Catastrophes", "terseLabel": "Costs related to KMG-Bernuth warehouse fire, net of insurance recovery" } } }, "localname": "LossFromCatastrophes", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SEGMENTREPORTINGReconciliationfromSegmentAdjustedEBITDADetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_MachineryAndEquipmentMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Tangible personal property used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office equipment.", "label": "Machinery and Equipment [Member]", "terseLabel": "Machinery and equipment" } } }, "localname": "MachineryAndEquipmentMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/PROPERTYPLANTANDEQUIPMENTDetails", "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPropertyPlantandEquipmentDetails" ], "xbrltype": "domainItemType" }, "us-gaap_MovementInValuationAllowancesAndReservesRollForward": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.", "label": "SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]", "terseLabel": "SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]" } } }, "localname": "MovementInValuationAllowancesAndReservesRollForward", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SCHEDULEIIVALUATIONANDQUALIFYINGACCOUNTSDetails" ], "xbrltype": "stringItemType" }, "us-gaap_NetCashProvidedByUsedInFinancingActivities": { "auth_ref": [ "r113" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 3.0, "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.", "label": "Net Cash Provided by (Used in) Financing Activities", "totalLabel": "Net cash provided by (used in) financing activities" } } }, "localname": "NetCashProvidedByUsedInFinancingActivities", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Net Cash Provided by (Used in) Financing Activities [Abstract]", "terseLabel": "Cash flows from financing activities:" } } }, "localname": "NetCashProvidedByUsedInFinancingActivitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "stringItemType" }, "us-gaap_NetCashProvidedByUsedInInvestingActivities": { "auth_ref": [ "r113" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 2.0, "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.", "label": "Net Cash Provided by (Used in) Investing Activities", "totalLabel": "Net cash used in investing activities" } } }, "localname": "NetCashProvidedByUsedInInvestingActivities", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Net Cash Provided by (Used in) Investing Activities [Abstract]", "terseLabel": "Cash flows from investing activities:" } } }, "localname": "NetCashProvidedByUsedInInvestingActivitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "stringItemType" }, "us-gaap_NetCashProvidedByUsedInOperatingActivities": { "auth_ref": [ "r113", "r115", "r119" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 1.0, "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect", "weight": 1.0 } }, "lang": { "en-US": { "role": { "documentation": "Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.", "label": "Net Cash Provided by (Used in) Operating Activities", "totalLabel": "Net cash provided by operating activities" } } }, "localname": "NetCashProvidedByUsedInOperatingActivities", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Net Cash Provided by (Used in) Operating Activities [Abstract]", "terseLabel": "Cash flows from operating activities:" } } }, "localname": "NetCashProvidedByUsedInOperatingActivitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "stringItemType" }, "us-gaap_NetIncomeLoss": { "auth_ref": [ "r1", "r72", "r75", "r81", "r119", "r130", "r154", "r159", "r160", "r161", "r162", "r165", "r166", "r174", "r219", "r225", "r229", "r232", "r235", "r255", "r649", "r712", "r730" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 3.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 }, "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMELOSS": { "order": 2.0, "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax", "weight": 1.0 }, "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFINCOME": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://cabotcmp.com/role/EARNINGSPERSHAREDetails": { "order": 2.0, "parentTag": "us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.", "label": "Net Income (Loss) Attributable to Parent", "terseLabel": "Net income (loss)", "totalLabel": "Net income", "verboseLabel": "Net income" } } }, "localname": "NetIncomeLoss", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY", "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS", "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMELOSS", "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFINCOME", "http://cabotcmp.com/role/EARNINGSPERSHAREDetails", "http://cabotcmp.com/role/SEGMENTREPORTINGReconciliationfromSegmentAdjustedEBITDADetails", "http://cabotcmp.com/role/SELECTEDQUARTERLYOPERATINGRESULTSDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic": { "auth_ref": [ "r159", "r160", "r161", "r162", "r167", "r168", "r176", "r181", "r219", "r225", "r229", "r232", "r235" ], "calculation": { "http://cabotcmp.com/role/EARNINGSPERSHAREDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.", "label": "Net Income (Loss) Available to Common Stockholders, Basic", "totalLabel": "Net income available to common stockholders" } } }, "localname": "NetIncomeLossAvailableToCommonStockholdersBasic", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EARNINGSPERSHAREDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetIncomeLossAvailableToCommonStockholdersBasicAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Net Income (Loss) Available to Common Stockholders, Basic [Abstract]", "verboseLabel": "Numerator [Abstract]" } } }, "localname": "NetIncomeLossAvailableToCommonStockholdersBasicAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EARNINGSPERSHAREDetails" ], "xbrltype": "stringItemType" }, "us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "New Accounting Pronouncements or Change in Accounting Principle [Line Items]", "terseLabel": "New Accounting Pronouncements or Change in Accounting Principle [Line Items]" } } }, "localname": "NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESRecentlyAdoptedAccountingPronouncementsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable": { "auth_ref": [ "r153", "r154", "r155", "r156", "r157", "r158", "r161", "r185", "r256", "r257", "r258", "r259", "r260", "r261", "r517", "r518", "r519", "r520", "r521", "r522", "r523", "r524", "r561", "r562", "r563", "r564", "r701", "r702", "r703", "r742", "r743", "r744", "r745", "r746", "r747", "r748", "r749", "r750", "r751", "r752", "r753" ], "lang": { "en-US": { "role": { "documentation": "Summarization of the changes in an accounting principle or a new accounting pronouncement, including the line items affected by the change and the financial effects of the change on those particular line items.", "label": "Accounting Standards Update and Change in Accounting Principle [Table]", "terseLabel": "Accounting Standards Update and Change in Accounting Principle [Table]" } } }, "localname": "NewAccountingPronouncementsOrChangeInAccountingPrincipleTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESRecentlyAdoptedAccountingPronouncementsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy pertaining to new accounting pronouncements that may impact the entity's financial reporting. Includes, but is not limited to, quantification of the expected or actual impact.", "label": "New Accounting Pronouncements, Policy [Policy Text Block]", "terseLabel": "Effects of Recent Accounting Pronouncements" } } }, "localname": "NewAccountingPronouncementsPolicyPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_NoncurrentAssets": { "auth_ref": [ "r240" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.", "label": "Long-Lived Assets", "terseLabel": "Total long-lived assets" } } }, "localname": "NoncurrentAssets", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/LONGLIVEDASSETIMPAIRMENTWOODTREATMENTLonglivedAssetImpairmentDetails", "http://cabotcmp.com/role/LONGLIVEDASSETIMPAIRMENTWOODTREATMENTNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_NondesignatedMember": { "auth_ref": [ "r610" ], "lang": { "en-US": { "role": { "documentation": "Derivative instrument not designated as hedging instrument under Generally Accepted Accounting Principles (GAAP).", "label": "Not Designated as Hedging Instrument [Member]", "terseLabel": "Derivatives not designated as hedging instruments" } } }, "localname": "NondesignatedMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSEffectofDerivativeInstrumentsontheConsolidatedStatementofIncomeDetails", "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSFairValueofDerivativeInstrumentsintheConsolidatedBalanceSheetDetails" ], "xbrltype": "domainItemType" }, "us-gaap_NonoperatingIncomeExpense": { "auth_ref": [ "r93" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFINCOME": { "order": 3.0, "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).", "label": "Nonoperating Income (Expense)", "verboseLabel": "Other income (expense), net" } } }, "localname": "NonoperatingIncomeExpense", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFINCOME" ], "xbrltype": "monetaryItemType" }, "us-gaap_NonrecurringAdjustmentAxis": { "auth_ref": [ "r581" ], "lang": { "en-US": { "role": { "documentation": "Information about material and nonrecurring adjustment directly attributable to the business combination(s) included in the reported pro forma revenue and earnings (supplemental pro forma information).", "label": "Nonrecurring Adjustment [Axis]", "terseLabel": "Nonrecurring Adjustment [Axis]" } } }, "localname": "NonrecurringAdjustmentAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONNarrativeDetails", "http://cabotcmp.com/role/BUSINESSCOMBINATIONProFormaInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_NonrecurringAdjustmentDomain": { "auth_ref": [ "r581" ], "lang": { "en-US": { "role": { "documentation": "Material, nonrecurring adjustment(s) allocated (included) to (in) reported pro forma revenue and earnings (supplemental pro forma information).", "label": "Nonrecurring Adjustment [Domain]", "terseLabel": "Nonrecurring Adjustment [Domain]" } } }, "localname": "NonrecurringAdjustmentDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONNarrativeDetails", "http://cabotcmp.com/role/BUSINESSCOMBINATIONProFormaInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_NotesPayableToBanksMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "A written promise to pay a note to a bank.", "label": "Notes Payable to Banks [Member]", "terseLabel": "Term loan" } } }, "localname": "NotesPayableToBanksMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTNarrativeDetails", "http://cabotcmp.com/role/DEBTPrincipalRepaymentsDetails", "http://cabotcmp.com/role/DEBTTotalDebtDetails" ], "xbrltype": "domainItemType" }, "us-gaap_NumberOfOperatingSegments": { "auth_ref": [ "r207" ], "lang": { "en-US": { "role": { "documentation": "Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.", "label": "Number of Operating Segments", "terseLabel": "Number of historical operating segments" } } }, "localname": "NumberOfOperatingSegments", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SEGMENTREPORTINGNarrativeDetails" ], "xbrltype": "integerItemType" }, "us-gaap_NumberOfReportableSegments": { "auth_ref": [ "r207" ], "lang": { "en-US": { "role": { "documentation": "Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.", "label": "Number of Reportable Segments", "terseLabel": "Number of reportable segments" } } }, "localname": "NumberOfReportableSegments", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BACKGROUNDANDBASISOFPRESENTATIONDetails", "http://cabotcmp.com/role/SEGMENTREPORTINGNarrativeDetails" ], "xbrltype": "integerItemType" }, "us-gaap_OciBeforeReclassificationsBeforeTaxAttributableToParent": { "auth_ref": [ "r70" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount before tax and reclassification adjustments of other comprehensive income (loss) attributable to parent.", "label": "OCI, before Reclassifications, before Tax, Attributable to Parent", "terseLabel": "Change in fair value", "verboseLabel": "Gain (loss) recognized in other comprehensive income" } } }, "localname": "OciBeforeReclassificationsBeforeTaxAttributableToParent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSDetails", "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSEffectofDerivativeInstrumentsonAccumulatedOtherComprehensiveIncomeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingExpenses": { "auth_ref": [], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFINCOME": { "order": 1.0, "parentTag": "us-gaap_OperatingIncomeLoss", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.", "label": "Operating Expenses", "totalLabel": "Total operating expenses" } } }, "localname": "OperatingExpenses", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFINCOME" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingIncomeLoss": { "auth_ref": [ "r219", "r225", "r229", "r232", "r235" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFINCOME": { "order": 2.0, "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The net result for the period of deducting operating expenses from operating revenues.", "label": "Operating Income (Loss)", "totalLabel": "Operating income (loss)" } } }, "localname": "OperatingIncomeLoss", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFINCOME", "http://cabotcmp.com/role/SELECTEDQUARTERLYOPERATINGRESULTSDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingIncomeLossAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Operating Income (Loss) [Abstract]", "terseLabel": "Operating expenses:" } } }, "localname": "OperatingIncomeLossAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFINCOME" ], "xbrltype": "stringItemType" }, "us-gaap_OperatingLeaseCost": { "auth_ref": [ "r679", "r686" ], "calculation": { "http://cabotcmp.com/role/LEASESComponentsofLeaseExpenseDetails": { "order": 1.0, "parentTag": "us-gaap_LeaseCost", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.", "label": "Operating Lease, Cost", "terseLabel": "Operating lease cost" } } }, "localname": "OperatingLeaseCost", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/LEASESComponentsofLeaseExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseExpense": { "auth_ref": [ "r675" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of operating lease expense. Excludes sublease income.", "label": "Operating Lease, Expense", "terseLabel": "Rent expense" } } }, "localname": "OperatingLeaseExpense", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/LEASESDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseLiability": { "auth_ref": [ "r673" ], "calculation": { "http://cabotcmp.com/role/LEASESFutureMaturitiesofOperatingLeaseLiabilitiesDetails": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://cabotcmp.com/role/LEASESFutureMaturitiesofOperatingLeaseLiabilitiesDetails_1": { "order": 1.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Present value of lessee's discounted obligation for lease payments from operating lease.", "label": "Operating Lease, Liability", "terseLabel": "Operating lease liability", "totalLabel": "Operating lease liability" } } }, "localname": "OperatingLeaseLiability", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/LEASESFutureMaturitiesofOperatingLeaseLiabilitiesDetails", "http://cabotcmp.com/role/LEASESSupplementalBalanceSheetInformationDetails", "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESRecentlyAdoptedAccountingPronouncementsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseLiabilityCurrent": { "auth_ref": [ "r673" ], "calculation": { "http://cabotcmp.com/role/ACCRUEDEXPENSESINCOMETAXESPAYABLEANDOTHERCURRENTLIABILITIESDetails": { "order": 5.0, "parentTag": "us-gaap_OtherLiabilitiesCurrent", "weight": 1.0 }, "http://cabotcmp.com/role/LEASESFutureMaturitiesofOperatingLeaseLiabilitiesDetails": { "order": 1.0, "parentTag": "us-gaap_OperatingLeaseLiability", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.", "label": "Operating Lease, Liability, Current", "terseLabel": "Less: Current portion of operating lease liability", "verboseLabel": "Current portion of operating lease liability" } } }, "localname": "OperatingLeaseLiabilityCurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ACCRUEDEXPENSESINCOMETAXESPAYABLEANDOTHERCURRENTLIABILITIESDetails", "http://cabotcmp.com/role/LEASESFutureMaturitiesofOperatingLeaseLiabilitiesDetails", "http://cabotcmp.com/role/LEASESSupplementalBalanceSheetInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList": { "auth_ref": [ "r674" ], "lang": { "en-US": { "role": { "documentation": "Indicates line item in statement of financial position that includes current operating lease liability.", "label": "Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]", "terseLabel": "Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]" } } }, "localname": "OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/LEASESSupplementalBalanceSheetInformationDetails" ], "xbrltype": "extensibleListItemType" }, "us-gaap_OperatingLeaseLiabilityNoncurrent": { "auth_ref": [ "r673" ], "calculation": { "http://cabotcmp.com/role/LEASESFutureMaturitiesofOperatingLeaseLiabilitiesDetails": { "order": 2.0, "parentTag": "us-gaap_OperatingLeaseLiability", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.", "label": "Operating Lease, Liability, Noncurrent", "terseLabel": "Long-term portion of operating lease liability", "verboseLabel": "Lease liabilities - non-current" } } }, "localname": "OperatingLeaseLiabilityNoncurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/LEASESFutureMaturitiesofOperatingLeaseLiabilitiesDetails", "http://cabotcmp.com/role/LEASESSupplementalBalanceSheetInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList": { "auth_ref": [ "r674" ], "lang": { "en-US": { "role": { "documentation": "Indicates line item in statement of financial position that includes noncurrent operating lease liability.", "label": "Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]", "terseLabel": "Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]" } } }, "localname": "OperatingLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/LEASESSupplementalBalanceSheetInformationDetails" ], "xbrltype": "extensibleListItemType" }, "us-gaap_OperatingLeasePayments": { "auth_ref": [ "r676", "r680" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.", "label": "Operating Lease, Payments", "terseLabel": "Cash paid during the period for lease liabilities" } } }, "localname": "OperatingLeasePayments", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseRightOfUseAsset": { "auth_ref": [ "r672" ], "calculation": { "http://cabotcmp.com/role/OTHERLONGTERMASSETSDetails": { "order": 2.0, "parentTag": "us-gaap_OtherAssetsNoncurrent", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's right to use underlying asset under operating lease.", "label": "Operating Lease, Right-of-Use Asset", "terseLabel": "Long-term right of use assets", "verboseLabel": "Lease right-of-use assets" } } }, "localname": "OperatingLeaseRightOfUseAsset", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/LEASESSupplementalBalanceSheetInformationDetails", "http://cabotcmp.com/role/OTHERLONGTERMASSETSDetails", "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESRecentlyAdoptedAccountingPronouncementsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent": { "auth_ref": [ "r683", "r686" ], "lang": { "en-US": { "role": { "documentation": "Weighted average discount rate for operating lease calculated at point in time.", "label": "Operating Lease, Weighted Average Discount Rate, Percent", "terseLabel": "Weighted-average discount rate" } } }, "localname": "OperatingLeaseWeightedAverageDiscountRatePercent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/LEASESSupplementalBalanceSheetInformationDetails" ], "xbrltype": "percentItemType" }, "us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1": { "auth_ref": [ "r682", "r686" ], "lang": { "en-US": { "role": { "documentation": "Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.", "label": "Operating Lease, Weighted Average Remaining Lease Term", "terseLabel": "Weighted-average remaining lease term (in years)" } } }, "localname": "OperatingLeaseWeightedAverageRemainingLeaseTerm1", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/LEASESSupplementalBalanceSheetInformationDetails" ], "xbrltype": "durationItemType" }, "us-gaap_OperatingLeasesFutureMinimumPaymentsDue": { "auth_ref": [ "r667", "r669" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.", "label": "Operating Leases, Future Minimum Payments Due", "terseLabel": "Total future minimum lease payments" } } }, "localname": "OperatingLeasesFutureMinimumPaymentsDue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/LEASESMinimumLeasePaymentsUnderTopic840Details" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent": { "auth_ref": [ "r667", "r669" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.", "label": "Operating Leases, Future Minimum Payments Due, Next Twelve Months", "terseLabel": "2020" } } }, "localname": "OperatingLeasesFutureMinimumPaymentsDueCurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/LEASESMinimumLeasePaymentsUnderTopic840Details" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears": { "auth_ref": [ "r667", "r669" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.", "label": "Operating Leases, Future Minimum Payments, Due in Five Years", "terseLabel": "2025" } } }, "localname": "OperatingLeasesFutureMinimumPaymentsDueInFiveYears", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/LEASESMinimumLeasePaymentsUnderTopic840Details" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears": { "auth_ref": [ "r667", "r669" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.", "label": "Operating Leases, Future Minimum Payments, Due in Four Years", "terseLabel": "2023" } } }, "localname": "OperatingLeasesFutureMinimumPaymentsDueInFourYears", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/LEASESMinimumLeasePaymentsUnderTopic840Details" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears": { "auth_ref": [ "r667", "r669" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.", "label": "Operating Leases, Future Minimum Payments, Due in Three Years", "terseLabel": "2022" } } }, "localname": "OperatingLeasesFutureMinimumPaymentsDueInThreeYears", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/LEASESMinimumLeasePaymentsUnderTopic840Details" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears": { "auth_ref": [ "r667", "r669" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.", "label": "Operating Leases, Future Minimum Payments, Due in Two Years", "terseLabel": "2021" } } }, "localname": "OperatingLeasesFutureMinimumPaymentsDueInTwoYears", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/LEASESMinimumLeasePaymentsUnderTopic840Details" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter": { "auth_ref": [ "r667", "r669" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.", "label": "Operating Leases, Future Minimum Payments, Due Thereafter", "terseLabel": "Thereafter" } } }, "localname": "OperatingLeasesFutureMinimumPaymentsDueThereafter", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/LEASESMinimumLeasePaymentsUnderTopic840Details" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeasesOfLesseeDisclosureTextBlock": { "auth_ref": [ "r338", "r665", "r666", "r668", "r670" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure for lessee's operating leases. Includes, but is not limited to, description of lessee's operating lease, existence and terms of renewal or purchase options and escalation clauses, restrictions imposed by lease, such as those concerning dividends, additional debt, and further leasing, rent holidays, rent concessions, or leasehold improvement incentives and unusual provisions or conditions.", "label": "Lessee, Operating Lease, Disclosure [Table Text Block]", "terseLabel": "Schedule of minimum lease payments under operating leases" } } }, "localname": "OperatingLeasesOfLesseeDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/LEASESTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_OperatingLossCarryforwards": { "auth_ref": [ "r554" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.", "label": "Operating Loss Carryforwards", "terseLabel": "Operating loss carryforwards" } } }, "localname": "OperatingLossCarryforwards", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESNetOperatingLossCapitalandTaxCreditCarryforwardsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLossCarryforwardsLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Operating Loss Carryforwards [Line Items]", "terseLabel": "Operating Loss Carryforwards [Line Items]" } } }, "localname": "OperatingLossCarryforwardsLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESNetOperatingLossCapitalandTaxCreditCarryforwardsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_OperatingLossCarryforwardsTable": { "auth_ref": [ "r555" ], "lang": { "en-US": { "role": { "documentation": "Schedule reflecting pertinent information, such as tax authority, amounts, and expiration dates, of net operating loss carryforwards, including an assessment of the likelihood of utilization.", "label": "Operating Loss Carryforwards [Table]", "terseLabel": "Operating Loss Carryforwards [Table]" } } }, "localname": "OperatingLossCarryforwardsTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESNetOperatingLossCapitalandTaxCreditCarryforwardsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_OperatingLossCarryforwardsValuationAllowance": { "auth_ref": [ "r550" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The portion of the valuation allowance pertaining to the deferred tax asset representing potential future taxable deductions from net operating loss carryforwards for which it is more likely than not that a tax benefit will not be realized.", "label": "Operating Loss Carryforwards, Valuation Allowance", "terseLabel": "Operating loss carryforwards, valuation allowance" } } }, "localname": "OperatingLossCarryforwardsValuationAllowance", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESNetOperatingLossCapitalandTaxCreditCarryforwardsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingSegmentsMember": { "auth_ref": [ "r224", "r225", "r226", "r227", "r229", "r235" ], "lang": { "en-US": { "role": { "documentation": "Identifies components of an entity that engage in business activities from which they may earn revenue and incur expenses, including transactions with other components of the same entity.", "label": "Operating Segments [Member]", "terseLabel": "Operating segments" } } }, "localname": "OperatingSegmentsMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SEGMENTREPORTINGCapitalExpendituresDetails", "http://cabotcmp.com/role/SEGMENTREPORTINGReconciliationfromSegmentAdjustedEBITDADetails" ], "xbrltype": "domainItemType" }, "us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Organization, Consolidation and Presentation of Financial Statements [Abstract]", "terseLabel": "Organization, Consolidation and Presentation of Financial Statements [Abstract]" } } }, "localname": "OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_OtherAccruedLiabilitiesCurrent": { "auth_ref": [ "r10", "r11", "r12", "r48" ], "calculation": { "http://cabotcmp.com/role/ACCRUEDEXPENSESINCOMETAXESPAYABLEANDOTHERCURRENTLIABILITIESDetails": { "order": 9.0, "parentTag": "us-gaap_OtherLiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer.", "label": "Other Accrued Liabilities, Current", "terseLabel": "Other" } } }, "localname": "OtherAccruedLiabilitiesCurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ACCRUEDEXPENSESINCOMETAXESPAYABLEANDOTHERCURRENTLIABILITIESDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherAssetsDisclosureTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for other assets. This disclosure includes other current assets and other noncurrent assets.", "label": "Other Assets Disclosure [Text Block]", "verboseLabel": "OTHER LONG-TERM ASSETS" } } }, "localname": "OtherAssetsDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/OTHERLONGTERMASSETS" ], "xbrltype": "textBlockItemType" }, "us-gaap_OtherAssetsMiscellaneousNoncurrent": { "auth_ref": [], "calculation": { "http://cabotcmp.com/role/OTHERLONGTERMASSETSDetails": { "order": 3.0, "parentTag": "us-gaap_OtherAssetsNoncurrent", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of other miscellaneous assets expected to be realized or consumed after one year or normal operating cycle, if longer.", "label": "Other Assets, Miscellaneous, Noncurrent", "verboseLabel": "Other long-term assets" } } }, "localname": "OtherAssetsMiscellaneousNoncurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/OTHERLONGTERMASSETSDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherAssetsNoncurrent": { "auth_ref": [ "r42" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS": { "order": 5.0, "parentTag": "us-gaap_Assets", "weight": 1.0 }, "http://cabotcmp.com/role/OTHERLONGTERMASSETSDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of noncurrent assets classified as other.", "label": "Other Assets, Noncurrent", "totalLabel": "Total", "verboseLabel": "Other long-term assets" } } }, "localname": "OtherAssetsNoncurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS", "http://cabotcmp.com/role/OTHERLONGTERMASSETSDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherAssetsNoncurrentDisclosureAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Other Assets, Noncurrent Disclosure [Abstract]", "terseLabel": "Other long-term assets [Abstract]" } } }, "localname": "OtherAssetsNoncurrentDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/OTHERLONGTERMASSETSDetails" ], "xbrltype": "stringItemType" }, "us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent": { "auth_ref": [ "r65", "r67", "r596", "r601" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMELOSS": { "order": 2.0, "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount, after tax and reclassification adjustment, of (increase) decrease in accumulated other comprehensive income for defined benefit plan, attributable to parent.", "label": "Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax and Reclassification Adjustment, Attributable to Parent", "negatedLabel": "Minimum pension liability adjustment" } } }, "localname": "OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY", "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMELOSS" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent": { "auth_ref": [ "r596", "r597", "r601" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMELOSS": { "order": 1.0, "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature, attributable to parent entity.", "label": "Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent", "terseLabel": "Foreign currency translation adjustments" } } }, "localname": "OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY", "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMELOSS" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent": { "auth_ref": [ "r596", "r597", "r601" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount before tax of other comprehensive income (loss) attributable to parent entity.", "label": "Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent", "terseLabel": "Adjustments to AOCI, before tax" } } }, "localname": "OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent": { "auth_ref": [ "r67" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMELOSS": { "order": 3.0, "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount, after tax and reclassification, of gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness, attributable to parent.", "label": "Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax, Parent", "terseLabel": "Net unrealized loss on cash flow hedges", "verboseLabel": "Cash flow hedges" } } }, "localname": "OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY", "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMELOSS" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax": { "auth_ref": [ "r63" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount after tax and reclassification adjustments, of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).", "label": "Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax", "terseLabel": "Cash flow hedges" } } }, "localname": "OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent": { "auth_ref": [ "r73", "r76", "r596", "r597", "r601" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMELOSS": { "order": 1.0, "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount after tax of other comprehensive income (loss) attributable to parent entity.", "label": "Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent", "terseLabel": "Net Change", "totalLabel": "Other comprehensive income (loss), net of tax" } } }, "localname": "OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSDetails", "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMELOSS" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]", "terseLabel": "Other comprehensive income (loss), net of tax:" } } }, "localname": "OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMELOSS" ], "xbrltype": "stringItemType" }, "us-gaap_OtherComprehensiveIncomeLossTaxPortionAttributableToParent1": { "auth_ref": [ "r596", "r597", "r601" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of tax expense (benefit) allocated to other comprehensive income (loss) attributable to parent entity.", "label": "Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent", "terseLabel": "Income tax expense (benefit)" } } }, "localname": "OtherComprehensiveIncomeLossTaxPortionAttributableToParent1", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherIncomeMember": { "auth_ref": [ "r625" ], "lang": { "en-US": { "role": { "documentation": "Primary financial statement caption encompassing other revenue.", "label": "Other Income [Member]", "terseLabel": "Other income (expense), net" } } }, "localname": "OtherIncomeMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSEffectofDerivativeInstrumentsontheConsolidatedStatementofIncomeDetails" ], "xbrltype": "domainItemType" }, "us-gaap_OtherIntangibleAssetsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Intangible assets classified as other.", "label": "Other Intangible Assets [Member]", "terseLabel": "Other Intangible Assets" } } }, "localname": "OtherIntangibleAssetsMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsActivityDetails", "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_OtherLiabilitiesCurrent": { "auth_ref": [ "r9", "r10", "r48" ], "calculation": { "http://cabotcmp.com/role/ACCRUEDEXPENSESINCOMETAXESPAYABLEANDOTHERCURRENTLIABILITIESDetails": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS": { "order": 1.0, "parentTag": "us-gaap_LiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer.", "label": "Other Liabilities, Current", "totalLabel": "Total", "verboseLabel": "Accrued expenses, income taxes payable and other current liabilities" } } }, "localname": "OtherLiabilitiesCurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ACCRUEDEXPENSESINCOMETAXESPAYABLEANDOTHERCURRENTLIABILITIESDetails", "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherLiabilitiesNoncurrent": { "auth_ref": [ "r51" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS": { "order": 4.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer.", "label": "Other Liabilities, Noncurrent", "terseLabel": "Other long-term liabilities" } } }, "localname": "OtherLiabilitiesNoncurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherNoncurrentLiabilitiesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Primary financial statement caption encompassing other noncurrent liabilities.", "label": "Other Noncurrent Liabilities [Member]", "terseLabel": "Other long-term liabilities" } } }, "localname": "OtherNoncurrentLiabilitiesMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSFairValueofDerivativeInstrumentsintheConsolidatedBalanceSheetDetails" ], "xbrltype": "domainItemType" }, "us-gaap_OtherOperatingActivitiesCashFlowStatement": { "auth_ref": [], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 1.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Other cash or noncash adjustments to reconcile net income to cash provided by (used in) operating activities that are not separately disclosed in the statement of cash flows (for example, cash received or cash paid during the current period for miscellaneous operating activities, net change during the reporting period in other assets or other liabilities).", "label": "Other Operating Activities, Cash Flow Statement", "verboseLabel": "Other" } } }, "localname": "OtherOperatingActivitiesCashFlowStatement", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember": { "auth_ref": [ "r384", "r385", "r386", "r387", "r388", "r389", "r390", "r391", "r392", "r393", "r394", "r395", "r396", "r397", "r398", "r399", "r400", "r401", "r402", "r403", "r404", "r405", "r406", "r407", "r408", "r410", "r411", "r412", "r413", "r414", "r415", "r417", "r418", "r419", "r420", "r421", "r422", "r423", "r424", "r425", "r426", "r427", "r428", "r429", "r431", "r432", "r434", "r437", "r441", "r446", "r447", "r448", "r449", "r450", "r451", "r452", "r453", "r454", "r455", "r456", "r457", "r460", "r461", "r462", "r463", "r464", "r465" ], "lang": { "en-US": { "role": { "documentation": "Plan designed to provide other postretirement benefits. Includes, but is not limited to, defined benefit and defined contribution plans. Excludes pension benefits.", "label": "Other Postretirement Benefits Plan [Member]", "terseLabel": "Postretirement obligations" } } }, "localname": "OtherPostretirementBenefitPlansDefinedBenefitMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSPurchaseObligationsinForeignJurisdictionsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_PayablesAndAccrualsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Payables and Accruals [Abstract]", "terseLabel": "Payables and Accruals [Abstract]" } } }, "localname": "PayablesAndAccrualsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_PaymentsForHedgeInvestingActivities": { "auth_ref": [ "r103", "r116" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 7.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The cash outflow for a financial contract that meets the hedge criteria as either a cash flow hedge, fair value hedge, or hedge of a net investment in a foreign operation.", "label": "Payments for Hedge, Investing Activities", "negatedLabel": "Settlement of net investment hedge" } } }, "localname": "PaymentsForHedgeInvestingActivities", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsForRepurchaseOfCommonStock": { "auth_ref": [ "r107" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 5.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The cash outflow to reacquire common stock during the period.", "label": "Payments for Repurchase of Common Stock", "negatedLabel": "Repurchases of common stock" } } }, "localname": "PaymentsForRepurchaseOfCommonStock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsOfDebtIssuanceCosts": { "auth_ref": [ "r109" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 1.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.", "label": "Payments of Debt Issuance Costs", "negatedLabel": "Debt issuance costs" } } }, "localname": "PaymentsOfDebtIssuanceCosts", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsOfDividendsCommonStock": { "auth_ref": [ "r107" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 7.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity.", "label": "Payments of Ordinary Dividends, Common Stock", "negatedLabel": "Dividends paid" } } }, "localname": "PaymentsOfDividendsCommonStock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt": { "auth_ref": [ "r96", "r100", "r254" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 3.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of cash outflow to acquire investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).", "label": "Payments to Acquire Debt Securities, Available-for-sale", "negatedLabel": "Purchases of available-for-sale securities" } } }, "localname": "PaymentsToAcquireAvailableForSaleSecuritiesDebt", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsToAcquireBusinessesGross": { "auth_ref": [ "r101", "r592" ], "calculation": { "http://cabotcmp.com/role/BUSINESSCOMBINATIONConsiderationDetails": { "order": 2.0, "parentTag": "us-gaap_BusinessCombinationConsiderationTransferred1", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.", "label": "Payments to Acquire Businesses, Gross", "totalLabel": "Total cash consideration paid" } } }, "localname": "PaymentsToAcquireBusinessesGross", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONConsiderationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired": { "auth_ref": [ "r101" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 4.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.", "label": "Payments to Acquire Businesses, Net of Cash Acquired", "negatedLabel": "Acquisition of a business, net of cash acquired", "terseLabel": "Acquisition of business, net of cash acquired" } } }, "localname": "PaymentsToAcquireBusinessesNetOfCashAcquired", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONNarrativeDetails", "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsToAcquirePropertyPlantAndEquipment": { "auth_ref": [ "r102" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 6.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.", "label": "Payments to Acquire Property, Plant, and Equipment", "negatedLabel": "Additions to property, plant and equipment" } } }, "localname": "PaymentsToAcquirePropertyPlantAndEquipment", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock": { "auth_ref": [ "r407", "r409", "r415", "r433", "r435", "r436", "r437", "r438", "r439", "r456", "r458", "r459", "r460", "r480" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for retirement benefits.", "label": "Retirement Benefits [Text Block]", "verboseLabel": "EMPLOYEE RETIREMENT PLANS" } } }, "localname": "PensionAndOtherPostretirementBenefitsDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANS" ], "xbrltype": "textBlockItemType" }, "us-gaap_PerformanceSharesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Share-based payment arrangement awarded for meeting performance target.", "label": "Performance Shares [Member]", "terseLabel": "Performance share units" } } }, "localname": "PerformanceSharesMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSNarrativeDetails", "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSScheduleofTotalGrossSharebasedCompensationExpenseDetails" ], "xbrltype": "domainItemType" }, "us-gaap_PositionAxis": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Information by position taken for a security.", "label": "Position [Axis]", "terseLabel": "Position [Axis]" } } }, "localname": "PositionAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSNotionalamountsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_PositionDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Indicates position taken for a security.", "label": "Position [Domain]", "terseLabel": "Position [Domain]" } } }, "localname": "PositionDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSNotionalamountsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_PrepaidExpenseAndOtherAssetsCurrent": { "auth_ref": [ "r6", "r36", "r37" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS": { "order": 4.0, "parentTag": "us-gaap_AssetsCurrent", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer.", "label": "Prepaid Expense and Other Assets, Current", "terseLabel": "Prepaid expenses and other current assets" } } }, "localname": "PrepaidExpenseAndOtherAssetsCurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS" ], "xbrltype": "monetaryItemType" }, "us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Primary financial statement caption encompassing prepaid expenses and other current assets.", "label": "Prepaid Expenses and Other Current Assets [Member]", "terseLabel": "Prepaid expenses and other current assets" } } }, "localname": "PrepaidExpensesAndOtherCurrentAssetsMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSFairValueofDerivativeInstrumentsintheConsolidatedBalanceSheetDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ProceedsFromIssuanceOfCommonStock": { "auth_ref": [ "r104" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 6.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The cash inflow from the additional capital contribution to the entity.", "label": "Proceeds from Issuance of Common Stock", "terseLabel": "Proceeds from issuance of stock" } } }, "localname": "ProceedsFromIssuanceOfCommonStock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromIssuanceOfLongTermDebt": { "auth_ref": [ "r105" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 3.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.", "label": "Proceeds from Issuance of Long-term Debt", "terseLabel": "Proceeds from issuance of long-term debt" } } }, "localname": "ProceedsFromIssuanceOfLongTermDebt", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromLifeInsurancePolicies": { "auth_ref": [ "r99", "r112" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 2.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of cash inflow for proceeds from settlement of corporate-owned life insurance policy, classified as investing activities. Includes, but is not limited to, bank-owned life insurance policy.", "label": "Proceeds from Life Insurance Policy", "terseLabel": "Cash settlement of life insurance policy" } } }, "localname": "ProceedsFromLifeInsurancePolicies", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromLinesOfCredit": { "auth_ref": [ "r105", "r134" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 8.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.", "label": "Proceeds from Lines of Credit", "terseLabel": "Proceeds from revolving line of credit" } } }, "localname": "ProceedsFromLinesOfCredit", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS", "http://cabotcmp.com/role/DEBTNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromPaymentsForOtherFinancingActivities": { "auth_ref": [ "r106", "r110", "r139" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 2.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of cash inflow (outflow) from financing activities classified as other.", "label": "Proceeds from (Payments for) Other Financing Activities", "terseLabel": "Other financing activities" } } }, "localname": "ProceedsFromPaymentsForOtherFinancingActivities", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities": { "auth_ref": [ "r96", "r97", "r254" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 1.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of cash inflow from sale, maturity, prepayment and call of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).", "label": "Proceeds from Sale and Maturity of Debt Securities, Available-for-sale", "verboseLabel": "Proceeds from the sale and maturities of available-for-sale securities" } } }, "localname": "ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment": { "auth_ref": [ "r98" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 5.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.", "label": "Proceeds from Sale of Property, Plant, and Equipment", "terseLabel": "Proceeds from the sale of assets" } } }, "localname": "ProceedsFromSaleOfPropertyPlantAndEquipment", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromStockOptionsExercised": { "auth_ref": [ "r104", "r516" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of cash inflow from exercise of option under share-based payment arrangement.", "label": "Proceeds from Stock Options Exercised", "terseLabel": "Cash received from exercise of options" } } }, "localname": "ProceedsFromStockOptionsExercised", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSStockOptionActivityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PropertyPlantAndEquipmentAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Property, Plant and Equipment [Abstract]", "terseLabel": "Property, Plant and Equipment [Abstract]" } } }, "localname": "PropertyPlantAndEquipmentAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_PropertyPlantAndEquipmentAndIntangibleAssetsTextBlock": { "auth_ref": [ "r298", "r310" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for intangible assets and long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures.", "label": "Property, Plant, and Equipment and Intangible Assets [Text Block]", "terseLabel": "LONG-LIVED ASSET IMPAIRMENT -WOOD TREATMENT" } } }, "localname": "PropertyPlantAndEquipmentAndIntangibleAssetsTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/LONGLIVEDASSETIMPAIRMENTWOODTREATMENT" ], "xbrltype": "textBlockItemType" }, "us-gaap_PropertyPlantAndEquipmentByTypeAxis": { "auth_ref": [ "r41", "r304" ], "lang": { "en-US": { "role": { "documentation": "Information by type of long-lived, physical assets used to produce goods and services and not intended for resale.", "label": "Long-Lived Tangible Asset [Axis]", "terseLabel": "Property, Plant and Equipment, Type [Axis]" } } }, "localname": "PropertyPlantAndEquipmentByTypeAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/PROPERTYPLANTANDEQUIPMENTDetails", "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPropertyPlantandEquipmentDetails" ], "xbrltype": "stringItemType" }, "us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock": { "auth_ref": [ "r310", "r757", "r758", "r759" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections.", "label": "Property, Plant and Equipment Disclosure [Text Block]", "verboseLabel": "PROPERTY, PLANT AND EQUIPMENT" } } }, "localname": "PropertyPlantAndEquipmentDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/PROPERTYPLANTANDEQUIPMENT" ], "xbrltype": "textBlockItemType" }, "us-gaap_PropertyPlantAndEquipmentGross": { "auth_ref": [ "r40", "r302" ], "calculation": { "http://cabotcmp.com/role/PROPERTYPLANTANDEQUIPMENTDetails": { "order": 1.0, "parentTag": "us-gaap_PropertyPlantAndEquipmentNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.", "label": "Property, Plant and Equipment, Gross", "terseLabel": "Total property, plant and equipment" } } }, "localname": "PropertyPlantAndEquipmentGross", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/PROPERTYPLANTANDEQUIPMENTDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PropertyPlantAndEquipmentLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Property, Plant and Equipment [Line Items]", "terseLabel": "Property, Plant and Equipment [Line Items]" } } }, "localname": "PropertyPlantAndEquipmentLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/PROPERTYPLANTANDEQUIPMENTDetails", "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPropertyPlantandEquipmentDetails" ], "xbrltype": "stringItemType" }, "us-gaap_PropertyPlantAndEquipmentNet": { "auth_ref": [ "r15", "r16", "r304", "r728" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS": { "order": 2.0, "parentTag": "us-gaap_Assets", "weight": 1.0 }, "http://cabotcmp.com/role/PROPERTYPLANTANDEQUIPMENTDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.", "label": "Property, Plant and Equipment, Net", "terseLabel": "Property, plant and equipment, net", "totalLabel": "Net property, plant and equipment" } } }, "localname": "PropertyPlantAndEquipmentNet", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS", "http://cabotcmp.com/role/FINANCIALINFORMATIONBYGEOGRAPHICAREAFinancialInformationbyGeographicAreaDetails", "http://cabotcmp.com/role/LONGLIVEDASSETIMPAIRMENTWOODTREATMENTLonglivedAssetImpairmentDetails", "http://cabotcmp.com/role/PROPERTYPLANTANDEQUIPMENTDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PropertyPlantAndEquipmentNetAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Property, Plant and Equipment, Net [Abstract]", "terseLabel": "Property, Plant and Equipment, Net [Abstract]" } } }, "localname": "PropertyPlantAndEquipmentNetAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/PROPERTYPLANTANDEQUIPMENTDetails" ], "xbrltype": "stringItemType" }, "us-gaap_PropertyPlantAndEquipmentNetByTypeAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Property, Plant and Equipment, Net, by Type [Abstract]", "terseLabel": "Property, Plant and Equipment, Net, by Type [Abstract]" } } }, "localname": "PropertyPlantAndEquipmentNetByTypeAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/PROPERTYPLANTANDEQUIPMENTDetails" ], "xbrltype": "stringItemType" }, "us-gaap_PropertyPlantAndEquipmentPolicyTextBlock": { "auth_ref": [ "r39", "r128", "r304", "r757", "r758" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections.", "label": "Property, Plant and Equipment, Policy [Policy Text Block]", "terseLabel": "Property, Plant and Equipment" } } }, "localname": "PropertyPlantAndEquipmentPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_PropertyPlantAndEquipmentTextBlock": { "auth_ref": [ "r15", "r304" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.", "label": "Property, Plant and Equipment [Table Text Block]", "terseLabel": "Property, plant and equipment" } } }, "localname": "PropertyPlantAndEquipmentTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/PROPERTYPLANTANDEQUIPMENTTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_PropertyPlantAndEquipmentTypeDomain": { "auth_ref": [ "r15", "r302" ], "lang": { "en-US": { "role": { "documentation": "Listing of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.", "label": "Long-Lived Tangible Asset [Domain]", "terseLabel": "Property, Plant and Equipment, Type [Domain]" } } }, "localname": "PropertyPlantAndEquipmentTypeDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/PROPERTYPLANTANDEQUIPMENTDetails", "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPropertyPlantandEquipmentDetails" ], "xbrltype": "domainItemType" }, "us-gaap_PropertyPlantAndEquipmentUsefulLife": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.", "label": "Property, Plant and Equipment, Useful Life", "terseLabel": "Property, plant and equipment, useful life" } } }, "localname": "PropertyPlantAndEquipmentUsefulLife", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPropertyPlantandEquipmentDetails" ], "xbrltype": "durationItemType" }, "us-gaap_ProvisionForDoubtfulAccounts": { "auth_ref": [ "r85", "r263" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 10.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of expense (reversal of expense) for expected credit loss on accounts receivable.", "label": "Accounts Receivable, Credit Loss Expense (Reversal)", "terseLabel": "Provision for doubtful accounts" } } }, "localname": "ProvisionForDoubtfulAccounts", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_QuarterlyFinancialInformationTextBlock": { "auth_ref": [ "r190" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information.", "label": "Quarterly Financial Information [Text Block]", "verboseLabel": "SELECTED QUARTERLY OPERATING RESULTS" } } }, "localname": "QuarterlyFinancialInformationTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SELECTEDQUARTERLYOPERATINGRESULTS" ], "xbrltype": "textBlockItemType" }, "us-gaap_ReceivablesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Receivables [Abstract]", "terseLabel": "Receivables [Abstract]" } } }, "localname": "ReceivablesAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESAccountsReceivableandAllowanceforDoubtfulAccountsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ReceivablesPolicyTextBlock": { "auth_ref": [ "r128", "r248", "r251", "r252", "r253" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for receivable. Includes, but is not limited to, accounts receivable and financing receivable.", "label": "Receivable [Policy Text Block]", "terseLabel": "Accounts Receivable and Allowance for Doubtful Accounts" } } }, "localname": "ReceivablesPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent": { "auth_ref": [ "r70" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount before tax of reclassification adjustments of other comprehensive income (loss) attributable to parent.", "label": "Reclassification from AOCI, Current Period, before Tax, Attributable to Parent", "terseLabel": "Reclassification adjustment into earnings" } } }, "localname": "ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.", "label": "Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]", "terseLabel": "Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]" } } }, "localname": "ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESChangesintheGrossUnrecognizedTaxbenefitsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_RecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis": { "auth_ref": [ "r330" ], "lang": { "en-US": { "role": { "documentation": "Pertinent information about recorded unconditional purchase arrangements to acquire goods or services, by category of goods or services.", "label": "Recorded Unconditional Purchase Obligation by Category of Item Purchased [Axis]", "terseLabel": "Recorded Unconditional Purchase Obligation by Category of Item Purchased [Axis]" } } }, "localname": "RecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/COMMITMENTSANDCONTINGENCIESNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_RepaymentsOfLinesOfCredit": { "auth_ref": [ "r108", "r134" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 9.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.", "label": "Repayments of Lines of Credit", "negatedTerseLabel": "Repayment on revolving line of credit" } } }, "localname": "RepaymentsOfLinesOfCredit", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_RepaymentsOfLongTermDebt": { "auth_ref": [ "r108" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 4.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.", "label": "Repayments of Long-term Debt", "negatedLabel": "Repayment of long-term debt", "terseLabel": "Repayments of long-term debt" } } }, "localname": "RepaymentsOfLongTermDebt", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS", "http://cabotcmp.com/role/DEBTNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ReportingUnitPercentageOfFairValueInExcessOfCarryingAmount": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Percentage of fair value of reporting unit in excess of carrying amount.", "label": "Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount", "terseLabel": "Fair value in excess of carrying value, percent" } } }, "localname": "ReportingUnitPercentageOfFairValueInExcessOfCarryingAmount", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSNarrativeDetails" ], "xbrltype": "percentItemType" }, "us-gaap_ResearchAndDevelopmentExpense": { "auth_ref": [ "r531", "r769" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFINCOME": { "order": 1.0, "parentTag": "us-gaap_OperatingExpenses", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.", "label": "Research and Development Expense", "terseLabel": "Research, development and technical" } } }, "localname": "ResearchAndDevelopmentExpense", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFINCOME" ], "xbrltype": "monetaryItemType" }, "us-gaap_ResearchAndDevelopmentExpenseMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Primary financial statement caption in which the reported facts about research and development expense have been included.", "label": "Research and Development Expense [Member]", "terseLabel": "Research, development and technical" } } }, "localname": "ResearchAndDevelopmentExpenseMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSShareBasedCompensationExpenseDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ResearchAndDevelopmentExpensePolicy": { "auth_ref": [ "r128", "r531" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for costs it has incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process.", "label": "Research and Development Expense, Policy [Policy Text Block]", "terseLabel": "Research, Development and Technical" } } }, "localname": "ResearchAndDevelopmentExpensePolicy", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_RestrictedStockMember": { "auth_ref": [ "r182" ], "lang": { "en-US": { "role": { "documentation": "Stock including a provision that prohibits sale or substantive sale of an equity instrument for a specified period of time or until specified performance conditions are met.", "label": "Restricted Stock [Member]", "terseLabel": "Restricted stock, restricted stock units, and replacement awards", "verboseLabel": "Restricted Stock" } } }, "localname": "RestrictedStockMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY", "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSNarrativeDetails", "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSRestrictedStockandRestrictedStockUnitsDetails", "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSScheduleofTotalGrossSharebasedCompensationExpenseDetails" ], "xbrltype": "domainItemType" }, "us-gaap_RestrictedStockUnitsRSUMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Share instrument which is convertible to stock or an equivalent amount of cash, after a specified period of time or when specified performance conditions are met.", "label": "Restricted Stock Units (RSUs) [Member]", "terseLabel": "Restricted stock units" } } }, "localname": "RestrictedStockUnitsRSUMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSNarrativeDetails" ], "xbrltype": "domainItemType" }, "us-gaap_RestructuringCharges": { "auth_ref": [ "r118", "r321", "r323", "r324" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.", "label": "Restructuring Charges", "verboseLabel": "Net costs related to restructuring of the wood treatment business" } } }, "localname": "RestructuringCharges", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SEGMENTREPORTINGReconciliationfromSegmentAdjustedEBITDADetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_RetainedEarningsAccumulatedDeficit": { "auth_ref": [ "r24", "r350", "r524", "r726", "r748", "r753" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS": { "order": 3.0, "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The cumulative amount of the reporting entity's undistributed earnings or deficit.", "label": "Retained Earnings (Accumulated Deficit)", "terseLabel": "Retained earnings" } } }, "localname": "RetainedEarningsAccumulatedDeficit", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS" ], "xbrltype": "monetaryItemType" }, "us-gaap_RetainedEarningsMember": { "auth_ref": [ "r150", "r151", "r152", "r155", "r164", "r166", "r259", "r521", "r522", "r523", "r563", "r564", "r744", "r746" ], "lang": { "en-US": { "role": { "documentation": "The cumulative amount of the reporting entity's undistributed earnings or deficit.", "label": "Retained Earnings [Member]", "terseLabel": "Retained Earnings" } } }, "localname": "RetainedEarningsMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY", "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESRecentlyAdoptedAccountingPronouncementsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_RetirementPlanNameAxis": { "auth_ref": [ "r386", "r387", "r388", "r389", "r390", "r391", "r392", "r393", "r394", "r395", "r396", "r397", "r398", "r399", "r400", "r401", "r402", "r403", "r404", "r405", "r406", "r407", "r408", "r410", "r411", "r412", "r413", "r414", "r415", "r416", "r417", "r418", "r419", "r420", "r421", "r422", "r423", "r424", "r425", "r426", "r427", "r428", "r429", "r430", "r431", "r432", "r434", "r437", "r441", "r442", "r443", "r446", "r447", "r448", "r449", "r450", "r451", "r452", "r453", "r454", "r455", "r466", "r467", "r468", "r469", "r470", "r471", "r472", "r473", "r474", "r479" ], "lang": { "en-US": { "role": { "documentation": "Information by name of plan designed to provide retirement benefits. Includes, but is not limited to, legal name of defined benefit and defined contribution plans.", "label": "Retirement Plan Name [Axis]", "terseLabel": "Retirement Plan Name [Axis]" } } }, "localname": "RetirementPlanNameAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSNarrativeDetails", "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSPurchaseObligationsinForeignJurisdictionsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_RetirementPlanNameDomain": { "auth_ref": [ "r386", "r387", "r388", "r389", "r390", "r391", "r392", "r393", "r394", "r395", "r396", "r397", "r398", "r399", "r400", "r401", "r402", "r403", "r404", "r405", "r406", "r407", "r408", "r410", "r411", "r412", "r413", "r414", "r415", "r416", "r417", "r418", "r419", "r420", "r421", "r422", "r423", "r424", "r425", "r426", "r427", "r428", "r429", "r430", "r431", "r432", "r434", "r437", "r441", "r442", "r443", "r446", "r447", "r448", "r449", "r450", "r451", "r452", "r453", "r454", "r455", "r466", "r467", "r468", "r469", "r470", "r471", "r472", "r473", "r474", "r479" ], "lang": { "en-US": { "role": { "documentation": "Name of plan designed to provide retirement benefits. Includes, but is not limited to, legal name of defined benefit and defined contribution plans.", "label": "Retirement Plan Name [Domain]", "terseLabel": "Retirement Plan Name [Domain]" } } }, "localname": "RetirementPlanNameDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSNarrativeDetails", "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSPurchaseObligationsinForeignJurisdictionsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_RetirementPlanSponsorLocationAxis": { "auth_ref": [ "r386", "r387", "r388", "r389", "r390", "r391", "r392", "r393", "r394", "r395", "r396", "r397", "r398", "r399", "r400", "r401", "r402", "r403", "r404", "r405", "r406", "r407", "r408", "r410", "r411", "r412", "r413", "r414", "r415", "r416", "r417", "r418", "r419", "r420", "r421", "r422", "r423", "r424", "r425", "r426", "r427", "r428", "r429", "r430", "r431", "r432", "r434", "r437", "r442", "r443", "r445", "r446", "r447", "r448", "r449", "r450", "r451", "r452", "r453", "r454", "r455", "r461", "r465", "r478" ], "lang": { "en-US": { "role": { "documentation": "Information by location of employer sponsoring plan designed to provide retirement benefits. Includes, but is not limited to, defined benefit and defined contribution plans.", "label": "Retirement Plan Sponsor Location [Axis]", "terseLabel": "Retirement Plan Sponsor Location [Axis]" } } }, "localname": "RetirementPlanSponsorLocationAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSNarrativeDetails", "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSPurchaseObligationsinForeignJurisdictionsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_RetirementPlanSponsorLocationDomain": { "auth_ref": [ "r386", "r387", "r388", "r389", "r390", "r391", "r392", "r393", "r394", "r395", "r396", "r397", "r398", "r399", "r400", "r401", "r402", "r403", "r404", "r405", "r406", "r407", "r408", "r410", "r411", "r412", "r413", "r414", "r415", "r416", "r417", "r418", "r419", "r420", "r421", "r422", "r423", "r424", "r425", "r426", "r427", "r428", "r429", "r430", "r431", "r432", "r434", "r437", "r442", "r443", "r445", "r446", "r447", "r448", "r449", "r450", "r451", "r452", "r453", "r454", "r455", "r461", "r465", "r478" ], "lang": { "en-US": { "role": { "documentation": "Location of employer sponsoring plan designed to provide retirement benefits. Includes, but is not limited to, defined benefit and defined contribution plans.", "label": "Retirement Plan Sponsor Location [Domain]", "terseLabel": "Retirement Plan Sponsor Location [Domain]" } } }, "localname": "RetirementPlanSponsorLocationDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSNarrativeDetails", "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSPurchaseObligationsinForeignJurisdictionsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_RetirementPlanTypeAxis": { "auth_ref": [ "r383", "r384", "r385", "r386", "r387", "r388", "r389", "r390", "r391", "r392", "r393", "r394", "r395", "r396", "r397", "r398", "r399", "r400", "r401", "r402", "r403", "r404", "r405", "r406", "r407", "r408", "r410", "r411", "r412", "r413", "r414", "r415", "r416", "r417", "r418", "r419", "r420", "r421", "r422", "r423", "r424", "r425", "r426", "r427", "r428", "r429", "r431", "r432", "r434", "r437", "r441", "r446", "r447", "r448", "r449", "r450", "r451", "r452", "r453", "r454", "r455", "r456", "r457", "r460", "r461", "r462", "r463", "r464", "r465", "r475", "r476", "r477", "r478" ], "lang": { "en-US": { "role": { "documentation": "Information by type of retirement benefit plan. Includes, but is not limited to, retirement benefit arrangement for defined benefit pension and other postretirement plans, retirement benefit arrangement for defined contribution pension and other postretirement plans, and special and contractual termination benefits payable upon retirement.", "label": "Retirement Plan Type [Axis]", "terseLabel": "Retirement Plan Type [Axis]" } } }, "localname": "RetirementPlanTypeAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSPurchaseObligationsinForeignJurisdictionsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_RetirementPlanTypeDomain": { "auth_ref": [ "r383", "r384", "r385", "r386", "r387", "r388", "r389", "r390", "r391", "r392", "r393", "r394", "r395", "r396", "r397", "r398", "r399", "r400", "r401", "r402", "r403", "r404", "r405", "r406", "r407", "r408", "r410", "r411", "r412", "r413", "r414", "r415", "r416", "r417", "r418", "r419", "r420", "r421", "r422", "r423", "r424", "r425", "r426", "r427", "r428", "r429", "r431", "r432", "r434", "r437", "r441", "r446", "r447", "r448", "r449", "r450", "r451", "r452", "r453", "r454", "r455", "r456", "r457", "r460", "r461", "r462", "r463", "r464", "r465", "r475", "r476", "r477", "r478" ], "lang": { "en-US": { "role": { "documentation": "Type of plan designed to provide participants with retirement benefits. Includes, but is not limited to, retirement benefit arrangement for defined benefit pension and other postretirement plans, retirement benefit arrangement for defined contribution pension and other postretirement plans, and special and contractual termination benefits payable upon retirement.", "label": "Retirement Plan Type [Domain]", "terseLabel": "Retirement Plan Type [Domain]" } } }, "localname": "RetirementPlanTypeDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSPurchaseObligationsinForeignJurisdictionsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_RevenueFromContractWithCustomerAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Revenue from Contract with Customer [Abstract]" } } }, "localname": "RevenueFromContractWithCustomerAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax": { "auth_ref": [ "r210", "r211", "r224", "r230", "r231", "r238", "r239", "r242", "r374", "r375", "r699" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.", "label": "Revenue from Contract with Customer, Excluding Assessed Tax", "terseLabel": "Revenue" } } }, "localname": "RevenueFromContractWithCustomerExcludingAssessedTax", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/FINANCIALINFORMATIONBYGEOGRAPHICAREAFinancialInformationbyGeographicAreaDetails", "http://cabotcmp.com/role/FINANCIALINFORMATIONBYGEOGRAPHICAREARevenuebyMajorForeignCustomersDetails", "http://cabotcmp.com/role/SEGMENTREPORTINGRevenuefromExternalCustomersDetails", "http://cabotcmp.com/role/SELECTEDQUARTERLYOPERATINGRESULTSDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_RevenueFromContractWithCustomerMember": { "auth_ref": [ "r199", "r242" ], "lang": { "en-US": { "role": { "documentation": "Revenue from satisfaction of performance obligation by transferring promised product and service to customer, when it serves as benchmark in concentration of risk calculation.", "label": "Revenue from Contract with Customer Benchmark [Member]", "terseLabel": "Revenue benchmark" } } }, "localname": "RevenueFromContractWithCustomerMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/FINANCIALINFORMATIONBYGEOGRAPHICAREARevenuebyMajorForeignCustomersDetails" ], "xbrltype": "domainItemType" }, "us-gaap_RevenueFromContractWithCustomerPolicyTextBlock": { "auth_ref": [ "r129", "r366", "r367", "r368", "r369", "r370", "r371", "r372", "r373", "r382" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for revenue from contract with customer.", "label": "Revenue from Contract with Customer [Policy Text Block]", "terseLabel": "Revenue Recognition" } } }, "localname": "RevenueFromContractWithCustomerPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_RevenueFromContractWithCustomerTextBlock": { "auth_ref": [ "r356", "r357", "r358", "r359", "r360", "r361", "r364", "r365", "r378", "r382" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.", "label": "Revenue from Contract with Customer [Text Block]", "terseLabel": "REVENUE FROM CONTRACTS WITH CUSTOMERS" } } }, "localname": "RevenueFromContractWithCustomerTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/REVENUEFROMCONTRACTSWITHCUSTOMERS" ], "xbrltype": "textBlockItemType" }, "us-gaap_RevenuePerformanceObligationAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Revenue, Performance Obligation [Abstract]", "terseLabel": "Revenue, Performance Obligation [Abstract]" } } }, "localname": "RevenuePerformanceObligationAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/REVENUEFROMCONTRACTSWITHCUSTOMERSTransactionPriceAllocatedtoRemainingPerformanceObligationsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_RevenueRemainingPerformanceObligation": { "auth_ref": [ "r362" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of transaction price allocated to performance obligation that has not been recognized as revenue.", "label": "Revenue, Remaining Performance Obligation, Amount", "terseLabel": "Revenue expected to be recognized on contract liability amounts as of end of period" } } }, "localname": "RevenueRemainingPerformanceObligation", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/REVENUEFROMCONTRACTSWITHCUSTOMERSTransactionPriceAllocatedtoRemainingPerformanceObligationsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]", "terseLabel": "Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]" } } }, "localname": "RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/REVENUEFROMCONTRACTSWITHCUSTOMERSTransactionPriceAllocatedtoRemainingPerformanceObligationsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1": { "auth_ref": [ "r363" ], "lang": { "en-US": { "role": { "documentation": "Period in which remaining performance obligation is expected to be recognized as revenue, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.", "label": "Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period", "terseLabel": "Revenue expected to be recognized on contract liability, satisfaction period" } } }, "localname": "RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/REVENUEFROMCONTRACTSWITHCUSTOMERSTransactionPriceAllocatedtoRemainingPerformanceObligationsDetails" ], "xbrltype": "durationItemType" }, "us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis": { "auth_ref": [ "r363" ], "lang": { "en-US": { "role": { "documentation": "Start date of time band for expected timing of satisfaction of remaining performance obligation, in CCYY-MM-DD format.", "label": "Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]", "terseLabel": "Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]" } } }, "localname": "RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/REVENUEFROMCONTRACTSWITHCUSTOMERSTransactionPriceAllocatedtoRemainingPerformanceObligationsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about expected timing for satisfying remaining performance obligation.", "label": "Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table]", "terseLabel": "Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table]" } } }, "localname": "RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/REVENUEFROMCONTRACTSWITHCUSTOMERSTransactionPriceAllocatedtoRemainingPerformanceObligationsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTableTextBlock": { "auth_ref": [ "r363" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of expected timing for satisfying remaining performance obligation.", "label": "Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]", "terseLabel": "Transaction price allocated to remaining performance obligation" } } }, "localname": "RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/REVENUEFROMCONTRACTSWITHCUSTOMERSTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_Revenues": { "auth_ref": [ "r80", "r130", "r210", "r211", "r224", "r230", "r231", "r238", "r239", "r242", "r255", "r649", "r717" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFINCOME": { "order": 1.0, "parentTag": "us-gaap_GrossProfit", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).", "label": "Revenues", "terseLabel": "Revenue" } } }, "localname": "Revenues", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFINCOME" ], "xbrltype": "monetaryItemType" }, "us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Revenues from External Customers and Long-Lived Assets [Line Items]", "terseLabel": "Revenues from External Customers and Long-Lived Assets [Line Items]" } } }, "localname": "RevenuesFromExternalCustomersAndLongLivedAssetsLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/FINANCIALINFORMATIONBYGEOGRAPHICAREAFinancialInformationbyGeographicAreaDetails", "http://cabotcmp.com/role/FINANCIALINFORMATIONBYGEOGRAPHICAREARevenuebyMajorForeignCustomersDetails" ], "xbrltype": "stringItemType" }, "us-gaap_RevolvingCreditFacilityMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Arrangement in which loan proceeds can continuously be obtained following repayments, but the total amount borrowed cannot exceed a specified maximum amount.", "label": "Revolving Credit Facility [Member]", "terseLabel": "Revolving Credit Facility" } } }, "localname": "RevolvingCreditFacilityMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTNarrativeDetails" ], "xbrltype": "domainItemType" }, "us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability": { "auth_ref": [ "r681", "r686" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of increase in right-of-use asset obtained in exchange for operating lease liability.", "label": "Right-of-Use Asset Obtained in Exchange for Operating Lease Liability", "terseLabel": "Right of use asset obtained in exchange for lease liabilities" } } }, "localname": "RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_SalesRevenueNetMember": { "auth_ref": [ "r199", "r242" ], "lang": { "en-US": { "role": { "documentation": "Revenue from sale of product and rendering of service and other sources of income, when it serves as benchmark in concentration of risk calculation.", "label": "Revenue Benchmark [Member]", "terseLabel": "Revenue benchmark" } } }, "localname": "SalesRevenueNetMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESConcentrationofRiskDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the (a) carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business (accounts payable); (b) other payables; and (c) accrued liabilities. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). An alternative caption includes accrued expenses.", "label": "Schedule of Accounts Payable and Accrued Liabilities [Table Text Block]", "terseLabel": "Accrued expenses, income taxes payable and other current liabilities" } } }, "localname": "ScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ACCRUEDEXPENSESINCOMETAXESPAYABLEANDOTHERCURRENTLIABILITIESTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock": { "auth_ref": [ "r70", "r658", "r659" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the components of accumulated other comprehensive income (loss).", "label": "Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]", "terseLabel": "Summary of the components of accumulated other comprehensive income (loss)" } } }, "localname": "ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable": { "auth_ref": [ "r182" ], "lang": { "en-US": { "role": { "documentation": "Schedule for securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by Antidilutive Securities.", "label": "Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]", "terseLabel": "Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]" } } }, "localname": "ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EARNINGSPERSHAREDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock": { "auth_ref": [ "r182" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities.", "label": "Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]", "terseLabel": "Schedule of shares excluded form calculation of diluted earnings per share" } } }, "localname": "ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EARNINGSPERSHARETables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable": { "auth_ref": [ "r582", "r583" ], "lang": { "en-US": { "role": { "documentation": "Schedule reflecting each material business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities.", "label": "Schedule of Business Acquisitions, by Acquisition [Table]", "terseLabel": "Schedule of Business Acquisitions, by Acquisition [Table]" } } }, "localname": "ScheduleOfBusinessAcquisitionsByAcquisitionTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONConsiderationDetails", "http://cabotcmp.com/role/BUSINESSCOMBINATIONNarrativeDetails", "http://cabotcmp.com/role/BUSINESSCOMBINATIONProFormaInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTextBlock": { "auth_ref": [ "r582", "r583" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of a material business combination completed during the period, including background, timing, and recognized assets and liabilities. This table does not include leveraged buyouts.", "label": "Schedule of Business Acquisitions, by Acquisition [Table Text Block]", "terseLabel": "Summary of consideration transferred and allocation of fair values of assets acquired and liabilities assumed" } } }, "localname": "ScheduleOfBusinessAcquisitionsByAcquisitionTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfChangeInAssetRetirementObligationTableTextBlock": { "auth_ref": [ "r320" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the changes in carrying amount of a liability for asset retirement obligations, for changes such as new obligations, changes in estimates of existing obligations, spending on existing obligations, property dispositions, and foreign currency translation.", "label": "Schedule of Change in Asset Retirement Obligation [Table Text Block]", "terseLabel": "Rollforward of AROs" } } }, "localname": "ScheduleOfChangeInAssetRetirementObligationTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ASSETRETIREMENTOBLIGATIONSTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock": { "auth_ref": [ "r560" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years.", "label": "Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]", "verboseLabel": "Taxes on income" } } }, "localname": "ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfCreditLossesForFinancingReceivablesCurrentTableTextBlock": { "auth_ref": [ "r246", "r266" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of allowance for credit loss of financing receivable, classified as current.", "label": "Financing Receivable, Current, Allowance for Credit Loss [Table Text Block]", "terseLabel": "Allowance for doubtful accounts" } } }, "localname": "ScheduleOfCreditLossesForFinancingReceivablesCurrentTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfDebtInstrumentsTextBlock": { "auth_ref": [ "r50", "r133", "r346", "r347", "r348", "r349", "r661", "r662", "r664", "r719" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.", "label": "Schedule of Long-term Debt Instruments [Table Text Block]", "terseLabel": "Schedule of total debt components" } } }, "localname": "ScheduleOfDebtInstrumentsTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock": { "auth_ref": [ "r551" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.", "label": "Schedule of Deferred Tax Assets and Liabilities [Table Text Block]", "terseLabel": "Significant components of deferred tax assets and liabilities" } } }, "localname": "ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable": { "auth_ref": [ "r440", "r441", "r444", "r445", "r456" ], "lang": { "en-US": { "role": { "documentation": "Disclosures about an individual defined benefit pension plan or an other postretirement defined benefit plan. It may be appropriate to group certain similar plans. Also includes schedule for fair value of plan assets by major categories of plan assets by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets or liabilities (Level 1), Significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).", "label": "Schedule of Defined Benefit Plans Disclosures [Table]", "terseLabel": "Schedule of Defined Benefit Plans Disclosures [Table]" } } }, "localname": "ScheduleOfDefinedBenefitPlansDisclosuresTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSPurchaseObligationsinForeignJurisdictionsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTextBlock": { "auth_ref": [ "r440", "r441", "r444", "r445", "r456" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of one or more of the entity's defined benefit pension plans or one or more other defined benefit postretirement plans, separately for pension plans and other postretirement benefit plans including the entity's schedule of fair value of plan assets for defined benefit or other postretirement plans.", "label": "Schedule of Defined Benefit Plans Disclosures [Table Text Block]", "terseLabel": "Schedule of Defined Benefit Plans Disclosures" } } }, "localname": "ScheduleOfDefinedBenefitPlansDisclosuresTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock": { "auth_ref": [ "r613", "r619", "r624" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the location and amount of derivative instruments and nonderivative instruments designated as hedging instruments reported before netting adjustments, and the amount of gain (loss) on derivative instruments and nonderivative instruments designated and qualified as hedging instruments.", "label": "Derivative Instruments, Gain (Loss) [Table Text Block]", "terseLabel": "Summary of effect of derivative instruments on the Consolidated Statements of Income and Other Comprehensive Income" } } }, "localname": "ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock": { "auth_ref": [ "r618" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position.", "label": "Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]", "terseLabel": "Fair value of derivative instruments included in the Consolidated Balance Sheet" } } }, "localname": "ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfDerivativeInstrumentsTextBlock": { "auth_ref": [ "r606", "r608", "r609", "r610", "r611", "r618", "r619", "r626", "r628" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item.", "label": "Schedule of Derivative Instruments [Table Text Block]", "terseLabel": "Schedule of Derivative Instruments" } } }, "localname": "ScheduleOfDerivativeInstrumentsTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock": { "auth_ref": [ "r181" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.", "label": "Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]", "terseLabel": "Schedule of basic and diluted earnings per share" } } }, "localname": "ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EARNINGSPERSHARETables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock": { "auth_ref": [ "r538" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.", "label": "Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]", "terseLabel": "Income tax rate reconciliation" } } }, "localname": "ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable": { "auth_ref": [ "r483", "r512", "r526" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about amount recognized for award under share-based payment arrangement. Includes, but is not limited to, amount expensed in statement of income or comprehensive income, amount capitalized in statement of financial position, and corresponding reporting line item in financial statements.", "label": "Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table]", "terseLabel": "Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table]" } } }, "localname": "ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSScheduleofTotalGrossSharebasedCompensationExpenseDetails", "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSShareBasedCompensationExpenseDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfEnvironmentalExitCostTable": { "auth_ref": [ "r334" ], "lang": { "en-US": { "role": { "documentation": "Table setting forth material liabilities for remediation, site restoration, postclosure, monitoring commitments, or other exit costs that may occur on the sale, disposal or abandonment of a property as a result of unanticipated contamination of the assets.", "label": "Schedule of Environmental Exit Cost [Table]", "terseLabel": "Recorded Unconditional Purchase Obligation [Table]" } } }, "localname": "ScheduleOfEnvironmentalExitCostTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/COMMITMENTSANDCONTINGENCIESNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfExpectedBenefitPaymentsTableTextBlock": { "auth_ref": [ "r417" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of benefits expected to be paid by pension plans and/or other employee benefit plans in each of the next five fiscal years and in the aggregate for the five fiscal years thereafter.", "label": "Schedule of Expected Benefit Payments [Table Text Block]", "terseLabel": "Estimated future benefit payments" } } }, "localname": "ScheduleOfExpectedBenefitPaymentsTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EMPLOYEERETIREMENTPLANSTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfFiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTextBlock": { "auth_ref": [ "r283" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of finite-lived intangible assets acquired as part of a business combination or through an asset purchase, by major class and in total, including the value of the asset acquired, any significant residual value (the expected value of the asset at the end of its useful life) and the weighted-average amortization period.", "label": "Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block]", "terseLabel": "Components of identifiable intangible assets acquired and their estimated useful lives" } } }, "localname": "ScheduleOfFiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable": { "auth_ref": [ "r283", "r290", "r700" ], "lang": { "en-US": { "role": { "documentation": "Schedule of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.", "label": "Schedule of Finite-Lived Intangible Assets [Table]", "terseLabel": "Schedule of Finite-Lived Intangible Assets [Table]" } } }, "localname": "ScheduleOfFiniteLivedIntangibleAssetsTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsActivityDetails", "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock": { "auth_ref": [ "r283", "r290" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment.", "label": "Schedule of Finite-Lived Intangible Assets [Table Text Block]", "terseLabel": "Components of other intangible assets" } } }, "localname": "ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfGoodwillTable": { "auth_ref": [ "r278", "r280" ], "lang": { "en-US": { "role": { "documentation": "Schedule of goodwill and the changes during the year due to acquisition, sale, impairment or for other reasons.", "label": "Schedule of Goodwill [Table]", "terseLabel": "Schedule of Goodwill [Table]" } } }, "localname": "ScheduleOfGoodwillTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSGoodwillActivityDetails", "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSNarrativeDetails", "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESGoodwillandOtherIntangibleAssetsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfGoodwillTextBlock": { "auth_ref": [ "r278", "r280" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule.", "label": "Schedule of Goodwill [Table Text Block]", "terseLabel": "Schedule of goodwill activity" } } }, "localname": "ScheduleOfGoodwillTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfImpairedLongLivedAssetsHeldAndUsedTable": { "auth_ref": [ "r306" ], "lang": { "en-US": { "role": { "documentation": "For a long-lived asset to be held and used by an entity, the table may include a description of the impaired long-lived asset and facts and circumstances leading to the impairment, amount of the impairment loss and where the loss is located in the income statement, method(s) for determining fair value, and the segment in which the impaired long-lived asset is reported.", "label": "Schedule of Impaired Long-Lived Assets Held and Used [Table]", "terseLabel": "Schedule of Impaired Long-Lived Assets Held and Used [Table]" } } }, "localname": "ScheduleOfImpairedLongLivedAssetsHeldAndUsedTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/LONGLIVEDASSETIMPAIRMENTWOODTREATMENTLonglivedAssetImpairmentDetails", "http://cabotcmp.com/role/LONGLIVEDASSETIMPAIRMENTWOODTREATMENTNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock": { "auth_ref": [ "r135" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of income before income tax between domestic and foreign jurisdictions.", "label": "Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]", "terseLabel": "Schedule of income before income taxes" } } }, "localname": "ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTextBlock": { "auth_ref": [ "r286", "r585" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of characteristics and cost, by total and major class, of indefinite-lived intangible assets acquired as part of a business combination. Indefinite-lived intangible assets are assets that have no physical form, but have expected future economic benefit. The future benefit is not expected to diminish over a stated period of time. Acquired indefinite-lived intangible assets are disclosed by major class (assets that can be grouped together because they are similar, either by their nature or by their use in operations of the entity) and in total.", "label": "Schedule of Indefinite-lived Intangible Assets Acquired as Part of Business Combination [Table Text Block]", "terseLabel": "Components of identifiable intangible assets acquired and their estimated useful lives" } } }, "localname": "ScheduleOfIndefiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTable": { "auth_ref": [ "r294", "r297" ], "lang": { "en-US": { "role": { "documentation": "Schedule of assets, excluding financial assets and goodwill, lacking physical substance and exist in perpetuity.", "label": "Schedule of Indefinite-Lived Intangible Assets [Table]", "terseLabel": "Schedule of Indefinite-Lived Intangible Assets [Table]" } } }, "localname": "ScheduleOfIndefiniteLivedIntangibleAssetsTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsActivityDetails", "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSComponentsofOtherIntangibleAssetsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTableTextBlock": { "auth_ref": [ "r294", "r297" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance and exist in perpetuity, by either major class or business segment.", "label": "Schedule of Indefinite-Lived Intangible Assets [Table Text Block]", "terseLabel": "Components of other intangible assets" } } }, "localname": "ScheduleOfIndefiniteLivedIntangibleAssetsTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfInventoryCurrentTableTextBlock": { "auth_ref": [ "r13", "r33", "r34", "r35" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.", "label": "Schedule of Inventory, Current [Table Text Block]", "terseLabel": "Inventories" } } }, "localname": "ScheduleOfInventoryCurrentTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INVENTORIESTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock": { "auth_ref": [ "r339" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of maturity and sinking fund requirement for long-term debt.", "label": "Schedule of Maturities of Long-term Debt [Table Text Block]", "terseLabel": "Schedule of principal repayments" } } }, "localname": "ScheduleOfMaturitiesOfLongTermDebtTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfNonvestedShareActivityTableTextBlock": { "auth_ref": [ "r497" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the changes in outstanding nonvested shares.", "label": "Schedule of Nonvested Share Activity [Table Text Block]", "terseLabel": "Summary of restricted stock awards and restricted stock unit awards" } } }, "localname": "ScheduleOfNonvestedShareActivityTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfOtherAssetsNoncurrentTextBlock": { "auth_ref": [ "r42" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of noncurrent assets.", "label": "Schedule of Other Assets, Noncurrent [Table Text Block]", "terseLabel": "Other long-term assets" } } }, "localname": "ScheduleOfOtherAssetsNoncurrentTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/OTHERLONGTERMASSETSTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfPropertyPlantAndEquipmentTable": { "auth_ref": [ "r41", "r304" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.", "label": "Property, Plant and Equipment [Table]", "terseLabel": "Property, Plant and Equipment [Table]" } } }, "localname": "ScheduleOfPropertyPlantAndEquipmentTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/PROPERTYPLANTANDEQUIPMENTDetails", "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPropertyPlantandEquipmentDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock": { "auth_ref": [ "r189" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data.", "label": "Quarterly Financial Information [Table Text Block]", "terseLabel": "Selected quarterly operating results" } } }, "localname": "ScheduleOfQuarterlyFinancialInformationTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SELECTEDQUARTERLYOPERATINGRESULTSTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfRevenueByMajorCustomersByReportingSegmentsTableTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the extent of the entity's reliance on its major customers, if revenues from transactions with a single external customer amount to 10 percent or more of entity revenues, including the disclosure of that fact, the total amount of revenues from each such customer, and the identity of the reportable segment or segments reporting the revenues. The entity need not disclose the identity of a major customer or the amount of revenues that each segment reports from that customer. For these purposes, a group of companies known to the entity to be under common control is considered a single customer, and the federal government, a state government, a local government such as a county or municipality, or a foreign government is each considered a single customer.", "label": "Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block]", "terseLabel": "Revenue from external customers by segment" } } }, "localname": "ScheduleOfRevenueByMajorCustomersByReportingSegmentsTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SEGMENTREPORTINGTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfRevenueFromExternalCustomersAttributedToForeignCountriesByGeographicAreaTextBlock": { "auth_ref": [ "r87", "r239" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the names of foreign countries from which revenue is material and the amount of revenue from external customers attributed to those countries. An entity may also provide subtotals of geographic information about groups of countries.", "label": "Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]", "terseLabel": "Sales to customers in foreign countries that accounted for more than 10 percent of total revenue" } } }, "localname": "ScheduleOfRevenueFromExternalCustomersAttributedToForeignCountriesByGeographicAreaTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/FINANCIALINFORMATIONBYGEOGRAPHICAREATables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsByGeographicalAreasTableTextBlock": { "auth_ref": [ "r87", "r241" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of information concerning material long-lived assets (excluding financial instruments, customer relationships with financial institutions, mortgage and other servicing rights, deferred policy acquisition costs, and deferred taxes assets) located in identified geographic areas and/or the amount of revenue from external customers attributed to that country from which revenue is material. An entity may also provide subtotals of geographic information about groups of countries.", "label": "Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]", "terseLabel": "Financial information by geographic area" } } }, "localname": "ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsByGeographicalAreasTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/FINANCIALINFORMATIONBYGEOGRAPHICAREATables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable": { "auth_ref": [ "r80", "r241" ], "lang": { "en-US": { "role": { "documentation": "Schedule of material long-lived assets (excluding financial instruments, customer relationships with financial institutions, mortgage and other servicing rights, deferred policy acquisition costs, and deferred taxes assets) located in identified geographic areas and/or the amount of revenue from external customers attributed to that country from which revenue is material. An entity may also provide subtotals of geographic information about groups of countries.", "label": "Schedule of Revenues from External Customers and Long-Lived Assets [Table]", "terseLabel": "Schedule of Revenues from External Customers and Long-Lived Assets [Table]" } } }, "localname": "ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/FINANCIALINFORMATIONBYGEOGRAPHICAREAFinancialInformationbyGeographicAreaDetails", "http://cabotcmp.com/role/FINANCIALINFORMATIONBYGEOGRAPHICAREARevenuebyMajorForeignCustomersDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable": { "auth_ref": [ "r219", "r222", "r228", "r278" ], "lang": { "en-US": { "role": { "documentation": "A table disclosing the profit or loss and total assets for each reportable segment of the entity. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.", "label": "Schedule of Segment Reporting Information, by Segment [Table]", "terseLabel": "Schedule of Segment Reporting Information, by Segment [Table]" } } }, "localname": "ScheduleOfSegmentReportingInformationBySegmentTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SEGMENTREPORTINGCapitalExpendituresDetails", "http://cabotcmp.com/role/SEGMENTREPORTINGReconciliationfromSegmentAdjustedEBITDADetails", "http://cabotcmp.com/role/SEGMENTREPORTINGRevenuefromExternalCustomersDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfShareBasedCompensationActivityTableTextBlock": { "auth_ref": [ "r497", "r502", "r505" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of activity for award under share-based payment arrangement. Includes, but is not limited to, outstanding award at beginning and end of year, granted, exercised, forfeited, and weighted-average grant date fair value.", "label": "Share-based Payment Arrangement, Activity [Table Text Block]", "terseLabel": "Share based compensation expense" } } }, "localname": "ScheduleOfShareBasedCompensationActivityTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable": { "auth_ref": [ "r484", "r515" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about share-based payment arrangement.", "label": "Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]", "terseLabel": "Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]" } } }, "localname": "ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSNarrativeDetails", "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSRestrictedStockandRestrictedStockUnitsDetails", "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSStockOptionActivityDetails", "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSWeightedAverageAssumptionsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock": { "auth_ref": [ "r290" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets.", "label": "Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]", "terseLabel": "Estimated future amortization expense" } } }, "localname": "ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_SchedulesOfConcentrationOfRiskByRiskFactorTextBlock": { "auth_ref": [ "r197", "r199", "r200", "r201", "r646", "r648" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the nature of a concentration, a benchmark to which it is compared, and the percentage that the risk is to the benchmark.", "label": "Schedules of Concentration of Risk, by Risk Factor [Table Text Block]", "terseLabel": "Customers who represent more than 10% of revenue" } } }, "localname": "SchedulesOfConcentrationOfRiskByRiskFactorTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_SegmentDomain": { "auth_ref": [ "r206", "r210", "r211", "r212", "r213", "r214", "r215", "r216", "r217", "r218", "r219", "r220", "r221", "r224", "r225", "r226", "r227", "r229", "r230", "r231", "r232", "r233", "r235", "r242", "r736" ], "lang": { "en-US": { "role": { "documentation": "Components of an entity that engage in business activities from which they may earn revenue and incur expenses, including transactions with other components of the same entity.", "label": "Segments [Domain]", "terseLabel": "Segments [Domain]" } } }, "localname": "SegmentDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONNarrativeDetails", "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSGoodwillActivityDetails", "http://cabotcmp.com/role/SEGMENTREPORTINGCapitalExpendituresDetails", "http://cabotcmp.com/role/SEGMENTREPORTINGReconciliationfromSegmentAdjustedEBITDADetails", "http://cabotcmp.com/role/SEGMENTREPORTINGRevenuefromExternalCustomersDetails" ], "xbrltype": "domainItemType" }, "us-gaap_SegmentReportingAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Segment Reporting [Abstract]", "terseLabel": "Segment Reporting [Abstract]" } } }, "localname": "SegmentReportingAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_SegmentReportingDisclosureTextBlock": { "auth_ref": [ "r206", "r208", "r209", "r219", "r223", "r229", "r233", "r234", "r235", "r236", "r238", "r241", "r242", "r243" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.", "label": "Segment Reporting Disclosure [Text Block]", "terseLabel": "SEGMENT REPORTING" } } }, "localname": "SegmentReportingDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SEGMENTREPORTING" ], "xbrltype": "textBlockItemType" }, "us-gaap_SegmentReportingInformationLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Segment Reporting Information [Line Items]", "terseLabel": "Segment Reporting Information [Line Items]" } } }, "localname": "SegmentReportingInformationLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SEGMENTREPORTINGCapitalExpendituresDetails", "http://cabotcmp.com/role/SEGMENTREPORTINGReconciliationfromSegmentAdjustedEBITDADetails", "http://cabotcmp.com/role/SEGMENTREPORTINGRevenuefromExternalCustomersDetails" ], "xbrltype": "stringItemType" }, "us-gaap_SelectedQuarterlyFinancialInformationAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Selected Quarterly Financial Information [Abstract]", "terseLabel": "Selected Quarterly Financial Information [Abstract]" } } }, "localname": "SelectedQuarterlyFinancialInformationAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_SellingGeneralAndAdministrativeExpense": { "auth_ref": [ "r91" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFINCOME": { "order": 2.0, "parentTag": "us-gaap_OperatingExpenses", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.", "label": "Selling, General and Administrative Expense", "terseLabel": "Selling, general and administrative" } } }, "localname": "SellingGeneralAndAdministrativeExpense", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFINCOME" ], "xbrltype": "monetaryItemType" }, "us-gaap_SellingGeneralAndAdministrativeExpensesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Primary financial statement caption encompassing selling, general and administrative expense.", "label": "Selling, General and Administrative Expenses [Member]", "terseLabel": "Selling, general and administrative" } } }, "localname": "SellingGeneralAndAdministrativeExpensesMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSShareBasedCompensationExpenseDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ShareBasedCompensation": { "auth_ref": [ "r117" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 9.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of noncash expense for share-based payment arrangement.", "label": "Share-based Payment Arrangement, Noncash Expense", "terseLabel": "Share-based compensation expense" } } }, "localname": "ShareBasedCompensation", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONNarrativeDetails", "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_ShareBasedCompensationAllocationAndClassificationInFinancialStatementsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Share-based Payment Arrangement, Expensed and Capitalized, Amount [Abstract]", "terseLabel": "Share-based Compensation, Allocation and Classification in Financial Statements [Abstract]" } } }, "localname": "ShareBasedCompensationAllocationAndClassificationInFinancialStatementsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSShareBasedCompensationExpenseDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1": { "auth_ref": [ "r485" ], "lang": { "en-US": { "role": { "documentation": "Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period", "terseLabel": "Vesting period" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSNarrativeDetails" ], "xbrltype": "durationItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod": { "auth_ref": [ "r495" ], "lang": { "en-US": { "role": { "documentation": "The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period", "negatedLabel": "Forfeited (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSRestrictedStockandRestrictedStockUnitsDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue": { "auth_ref": [ "r501" ], "lang": { "en-US": { "role": { "documentation": "Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value", "terseLabel": "Forfeited (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSRestrictedStockandRestrictedStockUnitsDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod": { "auth_ref": [ "r499" ], "lang": { "en-US": { "role": { "documentation": "The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period", "terseLabel": "Granted (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSRestrictedStockandRestrictedStockUnitsDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue": { "auth_ref": [ "r499" ], "lang": { "en-US": { "role": { "documentation": "The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value", "terseLabel": "Granted (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSRestrictedStockandRestrictedStockUnitsDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber": { "auth_ref": [ "r498" ], "lang": { "en-US": { "role": { "documentation": "The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number", "periodEndLabel": "Nonvested, end of period (in shares)", "periodStartLabel": "Nonvested, beginning of period (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSRestrictedStockandRestrictedStockUnitsDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]", "terseLabel": "Restricted Stock Awards and Units" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSRestrictedStockandRestrictedStockUnitsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue": { "auth_ref": [ "r498" ], "lang": { "en-US": { "role": { "documentation": "Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value", "periodEndLabel": "Nonvested, end of period (in dollars per share)", "periodStartLabel": "Nonvested, beginning of period (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSRestrictedStockandRestrictedStockUnitsDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]", "terseLabel": "Weighted Average Grant Date Fair Value" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSRestrictedStockandRestrictedStockUnitsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod": { "auth_ref": [ "r500" ], "lang": { "en-US": { "role": { "documentation": "The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period", "negatedLabel": "Vested (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSRestrictedStockandRestrictedStockUnitsDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue": { "auth_ref": [ "r504" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value", "terseLabel": "Fair value share-based payment awards" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue": { "auth_ref": [ "r500" ], "lang": { "en-US": { "role": { "documentation": "The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value", "terseLabel": "Vested (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSRestrictedStockandRestrictedStockUnitsDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]", "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSWeightedAverageAssumptionsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate": { "auth_ref": [ "r509" ], "lang": { "en-US": { "role": { "documentation": "The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate", "terseLabel": "Dividend yield" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSWeightedAverageAssumptionsDetails" ], "xbrltype": "percentItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate": { "auth_ref": [ "r508" ], "lang": { "en-US": { "role": { "documentation": "The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate", "terseLabel": "Expected volatility" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSWeightedAverageAssumptionsDetails" ], "xbrltype": "percentItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate": { "auth_ref": [ "r510" ], "lang": { "en-US": { "role": { "documentation": "The risk-free interest rate assumption that is used in valuing an option on its own shares.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate", "terseLabel": "Risk-free rate of return" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSWeightedAverageAssumptionsDetails" ], "xbrltype": "percentItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Share-based Compensation Arrangement by Share-based Payment Award [Line Items]", "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award [Line Items]" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSNarrativeDetails", "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSRestrictedStockandRestrictedStockUnitsDetails", "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSStockOptionActivityDetails", "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSWeightedAverageAssumptionsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized": { "auth_ref": [ "r486" ], "lang": { "en-US": { "role": { "documentation": "Number of shares authorized for issuance under share-based payment arrangement.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized", "terseLabel": "Number of shares authorized (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSNarrativeDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]", "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSStockOptionActivityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber": { "auth_ref": [ "r492" ], "lang": { "en-US": { "role": { "documentation": "The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number", "terseLabel": "Stock options, exercisable (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSStockOptionActivityDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice": { "auth_ref": [ "r492" ], "lang": { "en-US": { "role": { "documentation": "The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price", "terseLabel": "Weighted average exercise price, exercisable (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSStockOptionActivityDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue": { "auth_ref": [ "r504" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value", "terseLabel": "Intrinsic value of options exercised" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSStockOptionActivityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod": { "auth_ref": [ "r496" ], "lang": { "en-US": { "role": { "documentation": "For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period", "negatedLabel": "Forfeited or canceled (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSStockOptionActivityDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice": { "auth_ref": [ "r496" ], "lang": { "en-US": { "role": { "documentation": "Weighted average price of options that were either forfeited or expired.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price", "terseLabel": "Forfeited or canceled (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSStockOptionActivityDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod": { "auth_ref": [ "r493" ], "lang": { "en-US": { "role": { "documentation": "Net number of share options (or share units) granted during the period.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures", "verboseLabel": "Granted (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSStockOptionActivityDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue": { "auth_ref": [ "r503" ], "lang": { "en-US": { "role": { "documentation": "The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value", "terseLabel": "Weighted-average grant date fair value (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSRestrictedStockandRestrictedStockUnitsDetails", "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSWeightedAverageAssumptionsDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue": { "auth_ref": [ "r515" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value", "terseLabel": "Aggregate intrinsic value, outstanding" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSStockOptionActivityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber": { "auth_ref": [ "r491", "r515" ], "lang": { "en-US": { "role": { "documentation": "Number of options outstanding, including both vested and non-vested options.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number", "periodEndLabel": "Outstanding, end of period (in shares)", "periodStartLabel": "Outstanding, beginning of period (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSStockOptionActivityDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]", "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSStockOptionActivityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice": { "auth_ref": [ "r490" ], "lang": { "en-US": { "role": { "documentation": "Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price", "periodEndLabel": "Outstanding, end of period (in dollars per share)", "periodStartLabel": "Outstanding, beginning of period (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSStockOptionActivityDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]", "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSStockOptionActivityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue": { "auth_ref": [ "r505" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value", "terseLabel": "Aggregate intrinsic value, expected to vest" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSStockOptionActivityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber": { "auth_ref": [ "r506" ], "lang": { "en-US": { "role": { "documentation": "Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number", "terseLabel": "Stock options, expected to vest (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSStockOptionActivityDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice": { "auth_ref": [ "r506" ], "lang": { "en-US": { "role": { "documentation": "Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price", "terseLabel": "Weighted average exercise price, expected to vest (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSStockOptionActivityDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod": { "auth_ref": [ "r515" ], "lang": { "en-US": { "role": { "documentation": "Number of shares issued under share-based payment arrangement.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period", "terseLabel": "Shares issues (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSWeightedAverageAssumptionsDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain": { "auth_ref": [ "r482", "r487" ], "lang": { "en-US": { "role": { "documentation": "Award under share-based payment arrangement.", "label": "Award Type [Domain]", "terseLabel": "Equity Award [Domain]" } } }, "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY", "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSNarrativeDetails", "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSRestrictedStockandRestrictedStockUnitsDetails", "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSScheduleofTotalGrossSharebasedCompensationExpenseDetails", "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSStockOptionActivityDetails", "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSWeightedAverageAssumptionsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Weighted average price at which option holders acquired shares when converting their stock options into shares.", "label": "Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price", "terseLabel": "Exercised (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSStockOptionActivityDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.", "label": "Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price", "terseLabel": "Granted (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSStockOptionActivityDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy": { "auth_ref": [ "r128", "r484", "r488" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for award under share-based payment arrangement. Includes, but is not limited to, methodology and assumption used in measuring cost.", "label": "Share-based Payment Arrangement [Policy Text Block]", "terseLabel": "Share-Based Compensation" } } }, "localname": "ShareBasedCompensationOptionAndIncentivePlansPolicy", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1": { "auth_ref": [ "r507", "r525" ], "lang": { "en-US": { "role": { "documentation": "Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term", "terseLabel": "Expected term (in years)" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSWeightedAverageAssumptionsDetails" ], "xbrltype": "durationItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1": { "auth_ref": [ "r515" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value", "terseLabel": "Aggregate intrinsic value, exercisable" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSStockOptionActivityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1": { "auth_ref": [ "r515" ], "lang": { "en-US": { "role": { "documentation": "Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term", "verboseLabel": "Weighted average remaining contractual term, exercisable" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSStockOptionActivityDetails" ], "xbrltype": "durationItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2": { "auth_ref": [ "r506" ], "lang": { "en-US": { "role": { "documentation": "Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term", "verboseLabel": "Weighted average remaining contractual term, outstanding" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSStockOptionActivityDetails" ], "xbrltype": "durationItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1": { "auth_ref": [ "r506" ], "lang": { "en-US": { "role": { "documentation": "Weighted average remaining contractual term for fully vested and expected to vest options outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term", "verboseLabel": "Weighted average remaining contractual term, expected to vest" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSStockOptionActivityDetails" ], "xbrltype": "durationItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1": { "auth_ref": [ "r489" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value", "terseLabel": "Fair value of options vested" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSStockOptionActivityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Purchase price of common stock expressed as a percentage of its fair value.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent", "terseLabel": "Purchase price of common stock, percent" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSNarrativeDetails" ], "xbrltype": "percentItemType" }, "us-gaap_ShortMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Indicates the sale of a borrowed security or written option.", "label": "Short [Member]", "terseLabel": "Sell" } } }, "localname": "ShortMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSNotionalamountsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_SignificantAccountingPoliciesTextBlock": { "auth_ref": [ "r149" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for all significant accounting policies of the reporting entity.", "label": "Significant Accounting Policies [Text Block]", "verboseLabel": "SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES" } } }, "localname": "SignificantAccountingPoliciesTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIES" ], "xbrltype": "textBlockItemType" }, "us-gaap_StatementBusinessSegmentsAxis": { "auth_ref": [ "r0", "r206", "r210", "r211", "r212", "r213", "r214", "r215", "r216", "r217", "r218", "r219", "r220", "r221", "r224", "r225", "r226", "r227", "r229", "r230", "r231", "r232", "r233", "r235", "r242", "r278", "r308", "r322", "r325", "r736" ], "lang": { "en-US": { "role": { "documentation": "Information by business segments.", "label": "Segments [Axis]", "terseLabel": "Segments [Axis]" } } }, "localname": "StatementBusinessSegmentsAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONNarrativeDetails", "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSGoodwillActivityDetails", "http://cabotcmp.com/role/SEGMENTREPORTINGCapitalExpendituresDetails", "http://cabotcmp.com/role/SEGMENTREPORTINGReconciliationfromSegmentAdjustedEBITDADetails", "http://cabotcmp.com/role/SEGMENTREPORTINGRevenuefromExternalCustomersDetails" ], "xbrltype": "stringItemType" }, "us-gaap_StatementEquityComponentsAxis": { "auth_ref": [ "r54", "r150", "r151", "r152", "r155", "r164", "r166", "r191", "r259", "r345", "r350", "r521", "r522", "r523", "r563", "r564", "r653", "r654", "r655", "r656", "r657", "r659", "r744", "r745", "r746" ], "lang": { "en-US": { "role": { "documentation": "Information by component of equity.", "label": "Equity Components [Axis]", "terseLabel": "Equity Components [Axis]" } } }, "localname": "StatementEquityComponentsAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSDetails", "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY", "http://cabotcmp.com/role/DERIVATIVEFINANCIALINSTRUMENTSEffectofDerivativeInstrumentsonAccumulatedOtherComprehensiveIncomeDetails", "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESRecentlyAdoptedAccountingPronouncementsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_StatementLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Statement [Line Items]", "terseLabel": "Statement [Line Items]" } } }, "localname": "StatementLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY" ], "xbrltype": "stringItemType" }, "us-gaap_StatementOfCashFlowsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Statement of Cash Flows [Abstract]", "terseLabel": "Statement of Cash Flows [Abstract]" } } }, "localname": "StatementOfCashFlowsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_StatementOfFinancialPositionAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Statement of Financial Position [Abstract]", "terseLabel": "Statement of Financial Position [Abstract]" } } }, "localname": "StatementOfFinancialPositionAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Statement of Comprehensive Income [Abstract]", "terseLabel": "Statement of Comprehensive Income [Abstract]" } } }, "localname": "StatementOfIncomeAndComprehensiveIncomeAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_StatementOfStockholdersEquityAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Statement of Stockholders' Equity [Abstract]", "terseLabel": "Statement of Stockholders' Equity [Abstract]" } } }, "localname": "StatementOfStockholdersEquityAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_StatementTable": { "auth_ref": [ "r150", "r151", "r152", "r191", "r699" ], "lang": { "en-US": { "role": { "documentation": "Schedule reflecting a Statement of Income, Statement of Cash Flows, Statement of Financial Position, Statement of Shareholders' Equity and Other Comprehensive Income, or other statement as needed.", "label": "Statement [Table]", "terseLabel": "Statement [Table]" } } }, "localname": "StatementTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY" ], "xbrltype": "stringItemType" }, "us-gaap_StockCompensationPlanMember": { "auth_ref": [ "r182" ], "lang": { "en-US": { "role": { "documentation": "Share-based payment arrangement in which award of equity shares are granted. Arrangement includes, but is not limited to, grantor incurring liability for product and service based on price of its shares.", "label": "Share-based Payment Arrangement [Member]", "terseLabel": "Share-based Payment Arrangement" } } }, "localname": "StockCompensationPlanMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSStockOptionActivityDetails" ], "xbrltype": "domainItemType" }, "us-gaap_StockIssuedDuringPeriodSharesAcquisitions": { "auth_ref": [ "r20", "r21", "r350" ], "lang": { "en-US": { "role": { "documentation": "Number of shares of stock issued during the period pursuant to acquisitions.", "label": "Stock Issued During Period, Shares, Acquisitions", "terseLabel": "Issuance of common stock in connection with acquisition of KMG Chemicals, Inc (in shares)" } } }, "localname": "StockIssuedDuringPeriodSharesAcquisitions", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY" ], "xbrltype": "sharesItemType" }, "us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans": { "auth_ref": [ "r20", "r21", "r345", "r350" ], "lang": { "en-US": { "role": { "documentation": "Number of shares issued during the period as a result of an employee stock purchase plan.", "label": "Stock Issued During Period, Shares, Employee Stock Purchase Plans", "verboseLabel": "Issuance of stock under Employee Stock Purchase Program (in shares)" } } }, "localname": "StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY" ], "xbrltype": "sharesItemType" }, "us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross": { "auth_ref": [ "r345", "r350" ], "lang": { "en-US": { "role": { "documentation": "Total number of shares issued during the period, including shares forfeited, as a result of Restricted Stock Awards.", "label": "Stock Issued During Period, Shares, Restricted Stock Award, Gross", "terseLabel": "Issuance of restricted stock under Deposit Share Program (in shares)" } } }, "localname": "StockIssuedDuringPeriodSharesRestrictedStockAwardGross", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY" ], "xbrltype": "sharesItemType" }, "us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised": { "auth_ref": [ "r20", "r21", "r345", "r350", "r494" ], "lang": { "en-US": { "role": { "documentation": "Number of share options (or share units) exercised during the current period.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period", "negatedLabel": "Exercised (in shares)" } } }, "localname": "StockIssuedDuringPeriodSharesStockOptionsExercised", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSStockOptionActivityDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_StockIssuedDuringPeriodValueAcquisitions": { "auth_ref": [ "r54", "r345", "r350" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Value of stock issued pursuant to acquisitions during the period.", "label": "Stock Issued During Period, Value, Acquisitions", "terseLabel": "Issuance of common stock in connection with acquisition of KMG Chemicals, Inc." } } }, "localname": "StockIssuedDuringPeriodValueAcquisitions", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan": { "auth_ref": [ "r20", "r21", "r345", "r350" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Aggregate change in value for stock issued during the period as a result of employee stock purchase plan.", "label": "Stock Issued During Period, Value, Employee Stock Purchase Plan", "terseLabel": "Issuance of restricted stock under Deposit Share Program", "verboseLabel": "Issuance of stock under Employee Stock Purchase Plan" } } }, "localname": "StockIssuedDuringPeriodValueEmployeeStockPurchasePlan", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross": { "auth_ref": [ "r20", "r21", "r345", "r350" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Aggregate value of stock related to Restricted Stock Awards issued during the period.", "label": "Stock Issued During Period, Value, Restricted Stock Award, Gross", "terseLabel": "Issuance of restricted stock under Deposit Share Program" } } }, "localname": "StockIssuedDuringPeriodValueRestrictedStockAwardGross", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised": { "auth_ref": [ "r54", "r345", "r350" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Value of stock issued as a result of the exercise of stock options.", "label": "Stock Issued During Period, Value, Stock Options Exercised", "terseLabel": "Exercise of stock options" } } }, "localname": "StockIssuedDuringPeriodValueStockOptionsExercised", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockOptionMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Contracts conveying rights, but not obligations, to buy or sell a specific quantity of stock at a specified price during a specified period (an American option) or at a specified date (a European option).", "label": "Equity Option [Member]", "terseLabel": "Stock Options" } } }, "localname": "StockOptionMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SHAREBASEDCOMPENSATIONPLANSScheduleofTotalGrossSharebasedCompensationExpenseDetails" ], "xbrltype": "domainItemType" }, "us-gaap_StockRepurchasedDuringPeriodShares": { "auth_ref": [ "r20", "r21", "r345", "r350" ], "lang": { "en-US": { "role": { "documentation": "Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.", "label": "Stock Repurchased During Period, Shares", "terseLabel": "Repurchase of common stock - other (in shares)" } } }, "localname": "StockRepurchasedDuringPeriodShares", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY" ], "xbrltype": "sharesItemType" }, "us-gaap_StockholdersEquity": { "auth_ref": [ "r21", "r26", "r27", "r130", "r250", "r255", "r649" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS": { "order": 1.0, "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.", "label": "Stockholders' Equity Attributable to Parent", "periodEndLabel": "Ending Balance", "periodStartLabel": "Beginning Balance", "totalLabel": "Total stockholders\u2019 equity" } } }, "localname": "StockholdersEquity", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSDetails", "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS", "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest": { "auth_ref": [ "r130", "r150", "r151", "r152", "r155", "r164", "r255", "r259", "r350", "r521", "r522", "r523", "r563", "r564", "r594", "r595", "r605", "r649", "r653", "r654", "r659", "r745", "r746" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.", "label": "Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest", "terseLabel": "Effect of the adoption of the stranded tax effect accounting standard" } } }, "localname": "StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY", "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESRecentlyAdoptedAccountingPronouncementsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]", "terseLabel": "Stockholders\u2019 equity:" } } }, "localname": "StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS", "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETSParenthetical" ], "xbrltype": "stringItemType" }, "us-gaap_SubsegmentsAxis": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Information by business subsegments.", "label": "Subsegments [Axis]", "terseLabel": "Subsegments [Axis]" } } }, "localname": "SubsegmentsAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSGoodwillActivityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_SubsegmentsDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Divisions of a component of an entity that engage in business activities from which they may earn revenue and incur expenses, including transactions with other components of the same entity.", "label": "Subsegments [Domain]", "terseLabel": "Subsegments [Domain]" } } }, "localname": "SubsegmentsDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/GOODWILLANDOTHERINTANGIBLEASSETSGoodwillActivityDetails" ], "xbrltype": "domainItemType" }, "us-gaap_SummaryOfIncomeTaxContingenciesTextBlock": { "auth_ref": [ "r541", "r547", "r549" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure for tax positions taken in the tax returns filed or to be filed for which it is more likely than not that the tax position will not be sustained upon examination by taxing authorities and other income tax contingencies. Includes, but is not limited to, interest and penalties, reconciliation of unrecognized tax benefits, unrecognized tax benefits that would affect the effective tax rate, tax years that remain subject to examination by tax jurisdictions, and information about positions for which it is reasonably possible that amounts unrecognized will significantly change within 12 months.", "label": "Summary of Income Tax Contingencies [Table Text Block]", "terseLabel": "Reconciliation of gross unrecognized ftax benefits" } } }, "localname": "SummaryOfIncomeTaxContingenciesTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_SupplementalCashFlowInformationAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Supplemental Cash Flow Information [Abstract]", "terseLabel": "Supplemental disclosure of cash flow information:" } } }, "localname": "SupplementalCashFlowInformationAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "stringItemType" }, "us-gaap_TaxCreditCarryforwardAmount": { "auth_ref": [ "r554" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.", "label": "Tax Credit Carryforward, Amount", "terseLabel": "Tax credit carryforward" } } }, "localname": "TaxCreditCarryforwardAmount", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESNetOperatingLossCapitalandTaxCreditCarryforwardsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_TaxCutsAndJobsActOf2017ReclassificationFromAociToRetainedEarningsTaxEffect": { "auth_ref": [ "r68" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of increase (decrease) in accumulated other comprehensive income (AOCI) for reclassification to retained earnings of tax effect from remeasurement of deferred tax pursuant to Tax Cuts and Jobs Act.", "label": "Tax Cuts and Jobs Act, Reclassification from AOCI to Retained Earnings, Tax Effect", "terseLabel": "Effect of the adoption of the stranded tax effect accounting standard, net of tax" } } }, "localname": "TaxCutsAndJobsActOf2017ReclassificationFromAociToRetainedEarningsTaxEffect", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_TaxCutsAndJobsActOf2017TransitionTaxForAccumulatedForeignEarningsIncomeTaxExpense": { "auth_ref": [ "r560" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS": { "order": 4.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of income tax expense from transition tax on accumulated earnings of controlled foreign corporation deemed repatriated pursuant to Tax Cuts and Jobs Act.", "label": "Tax Cuts and Jobs Act, Transition Tax for Accumulated Foreign Earnings, Income Tax Expense", "terseLabel": "Deemed repatriation transition tax" } } }, "localname": "TaxCutsAndJobsActOf2017TransitionTaxForAccumulatedForeignEarningsIncomeTaxExpense", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS" ], "xbrltype": "monetaryItemType" }, "us-gaap_TechnologyBasedIntangibleAssetsMember": { "auth_ref": [ "r586" ], "lang": { "en-US": { "role": { "documentation": "Technology-based intangible assets, including, but not limited to, patented technology, unpatented technology, and developed technology rights.", "label": "Technology-Based Intangible Assets [Member]", "terseLabel": "Technology and know-how", "verboseLabel": "Product technology" } } }, "localname": "TechnologyBasedIntangibleAssetsMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONIdentifiableIntangibleAssetsAcquiredDetails", "http://cabotcmp.com/role/LONGLIVEDASSETIMPAIRMENTWOODTREATMENTLonglivedAssetImpairmentDetails" ], "xbrltype": "domainItemType" }, "us-gaap_TreasuryStockMember": { "auth_ref": [ "r53", "r351" ], "lang": { "en-US": { "role": { "documentation": "Shares of an entity that have been repurchased by the entity. This stock has no voting rights and receives no dividends. Note that treasury stock may be recorded at its total cost or separately as par (or stated) value and additional paid in capital. Classified within stockholders' equity if nonredeemable or redeemable solely at the option of the issuer. Classified within temporary equity if redemption is outside the control of the issuer.", "label": "Treasury Stock [Member]", "terseLabel": "Treasury Stock" } } }, "localname": "TreasuryStockMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY" ], "xbrltype": "domainItemType" }, "us-gaap_TreasuryStockShares": { "auth_ref": [ "r53", "r351" ], "lang": { "en-US": { "role": { "documentation": "Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.", "label": "Treasury Stock, Shares", "periodEndLabel": "Ending Balance, Treasure Stock (in shares)", "periodStartLabel": "Beginning Balance, Treasury Stock (in shares)", "terseLabel": "Treasury stock (in shares)" } } }, "localname": "TreasuryStockShares", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETSParenthetical", "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY" ], "xbrltype": "sharesItemType" }, "us-gaap_TreasuryStockSharesAcquired": { "auth_ref": [ "r21", "r345", "r350" ], "lang": { "en-US": { "role": { "documentation": "Number of shares that have been repurchased during the period and are being held in treasury.", "label": "Treasury Stock, Shares, Acquired", "terseLabel": "Repurchase of common stock under Share Repurchase Program (in shares)" } } }, "localname": "TreasuryStockSharesAcquired", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY" ], "xbrltype": "sharesItemType" }, "us-gaap_TreasuryStockValue": { "auth_ref": [ "r53", "r351", "r352" ], "calculation": { "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS": { "order": 1.0, "parentTag": "us-gaap_StockholdersEquity", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury.", "label": "Treasury Stock, Value", "negatedLabel": "Treasury stock at cost, 10,834 shares at September\u00a030, 2020 and 10,491 shares at September\u00a030, 2019" } } }, "localname": "TreasuryStockValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDBALANCESHEETS" ], "xbrltype": "monetaryItemType" }, "us-gaap_TreasuryStockValueAcquiredCostMethod": { "auth_ref": [ "r345", "r350", "r351" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.", "label": "Treasury Stock, Value, Acquired, Cost Method", "negatedLabel": "Repurchases of common stock under Share Repurchase Program" } } }, "localname": "TreasuryStockValueAcquiredCostMethod", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTOFCHANGESINSTOCKHOLDERSEQUITY" ], "xbrltype": "monetaryItemType" }, "us-gaap_TypeOfAdoptionMember": { "auth_ref": [ "r154", "r155", "r156", "r157", "r256", "r257", "r258", "r259", "r260", "r261", "r517", "r518", "r519", "r520", "r521", "r522", "r523", "r524", "r561", "r562", "r563", "r564", "r701", "r702", "r703", "r742", "r743", "r744", "r745", "r746", "r747", "r748", "r749", "r750", "r751", "r752", "r753" ], "lang": { "en-US": { "role": { "documentation": "Amendment to accounting standards.", "label": "Accounting Standards Update [Domain]", "terseLabel": "Accounting Standards Update [Domain]" } } }, "localname": "TypeOfAdoptionMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESRecentlyAdoptedAccountingPronouncementsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_UnconditionalPurchaseObligationCategoryOfGoodsOrServicesAcquiredDomain": { "auth_ref": [ "r326", "r327", "r329", "r330" ], "lang": { "en-US": { "role": { "documentation": "General description of the goods or services to be purchased from the counterparty to the unconditional purchase arrangement.", "label": "Unconditional Purchase Obligation, Category of Goods or Services Acquired [Domain]", "terseLabel": "Unconditional Purchase Obligation, Category of Goods or Services Acquired [Domain]" } } }, "localname": "UnconditionalPurchaseObligationCategoryOfGoodsOrServicesAcquiredDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/COMMITMENTSANDCONTINGENCIESNarrativeDetails" ], "xbrltype": "domainItemType" }, "us-gaap_UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic": { "auth_ref": [ "r175", "r178", "r179" ], "calculation": { "http://cabotcmp.com/role/EARNINGSPERSHAREDetails": { "order": 1.0, "parentTag": "us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of undistributed earnings (loss) allocated to participating securities for the basic earnings (loss) per share or per unit calculation under the two-class method.", "label": "Undistributed Earnings (Loss) Allocated to Participating Securities, Basic", "negatedLabel": "Less: income attributable to participating securities" } } }, "localname": "UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EARNINGSPERSHAREDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_UnrecognizedTaxBenefits": { "auth_ref": [ "r532", "r543" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of unrecognized tax benefits.", "label": "Unrecognized Tax Benefits", "periodEndLabel": "Ending balance", "periodStartLabel": "Beginning balance" } } }, "localname": "UnrecognizedTaxBenefits", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESChangesintheGrossUnrecognizedTaxbenefitsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions": { "auth_ref": [ "r544" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.", "label": "Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions", "negatedTerseLabel": "Reduction for tax positions relating to prior fiscal years" } } }, "localname": "UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESChangesintheGrossUnrecognizedTaxbenefitsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued": { "auth_ref": [ "r540" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.", "label": "Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued", "terseLabel": "Income tax interest and penalties accrued" } } }, "localname": "UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESChangesintheGrossUnrecognizedTaxbenefitsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions": { "auth_ref": [ "r545" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.", "label": "Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions", "terseLabel": "Additions for tax positions relating to the current fiscal year" } } }, "localname": "UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESChangesintheGrossUnrecognizedTaxbenefitsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions": { "auth_ref": [ "r544" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.", "label": "Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions", "terseLabel": "Additions for tax positions relating to prior fiscal years" } } }, "localname": "UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESChangesintheGrossUnrecognizedTaxbenefitsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations": { "auth_ref": [ "r546" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.", "label": "Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations", "negatedLabel": "Lapse of statute of limitations" } } }, "localname": "UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/INCOMETAXESChangesintheGrossUnrecognizedTaxbenefitsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_UseOfEstimates": { "auth_ref": [ "r192", "r193", "r195", "r196", "r202", "r203", "r204" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles.", "label": "Use of Estimates, Policy [Policy Text Block]", "terseLabel": "Use of Estimates" } } }, "localname": "UseOfEstimates", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_UseRightsMember": { "auth_ref": [ "r588" ], "lang": { "en-US": { "role": { "documentation": "Legal right to use or benefit from the use of natural resources or access. Examples include, but are not limited to, drilling rights, water rights, air rights, timber cutting rights and route authorities.", "label": "Use Rights [Member]", "terseLabel": "EPA product registration rights" } } }, "localname": "UseRightsMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/BUSINESSCOMBINATIONIdentifiableIntangibleAssetsAcquiredDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember": { "auth_ref": [ "r147" ], "lang": { "en-US": { "role": { "documentation": "Valuation allowance of deferred tax asset attributable to deductible temporary difference and carryforward.", "label": "SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member]", "terseLabel": "Valuation allowance" } } }, "localname": "ValuationAllowanceOfDeferredTaxAssetsMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SCHEDULEIIVALUATIONANDQUALIFYINGACCOUNTSDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ValuationAllowancesAndReservesBalance": { "auth_ref": [ "r141", "r146" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of valuation and qualifying accounts and reserves.", "label": "SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount", "periodEndLabel": "Balance At End of Year", "periodStartLabel": "Balance At Beginning of Year" } } }, "localname": "ValuationAllowancesAndReservesBalance", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SCHEDULEIIVALUATIONANDQUALIFYINGACCOUNTSDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense": { "auth_ref": [ "r144" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of increase in valuation and qualifying accounts and reserves from charge to cost and expense.", "label": "SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense", "verboseLabel": "Amount of Charge (Benefit) To Expenses" } } }, "localname": "ValuationAllowancesAndReservesChargedToCostAndExpense", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SCHEDULEIIVALUATIONANDQUALIFYINGACCOUNTSDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ValuationAllowancesAndReservesDomain": { "auth_ref": [ "r141", "r142", "r143", "r145", "r146" ], "lang": { "en-US": { "role": { "documentation": "Valuation and qualifying accounts and reserves.", "label": "SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain]", "terseLabel": "SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain]" } } }, "localname": "ValuationAllowancesAndReservesDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SCHEDULEIIVALUATIONANDQUALIFYINGACCOUNTSDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ValuationAllowancesAndReservesTypeAxis": { "auth_ref": [ "r141", "r142", "r143", "r145", "r146" ], "lang": { "en-US": { "role": { "documentation": "Information by valuation and qualifying accounts and reserves.", "label": "SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis]", "terseLabel": "SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis]" } } }, "localname": "ValuationAllowancesAndReservesTypeAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/SCHEDULEIIVALUATIONANDQUALIFYINGACCOUNTSDetails" ], "xbrltype": "stringItemType" }, "us-gaap_VariableRateAxis": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Information by type of variable rate.", "label": "Variable Rate [Axis]", "terseLabel": "Variable Rate [Axis]" } } }, "localname": "VariableRateAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTNarrativeDetails", "http://cabotcmp.com/role/DEBTTotalDebtDetails" ], "xbrltype": "stringItemType" }, "us-gaap_VariableRateDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Interest rate that fluctuates over time as a result of an underlying benchmark interest rate or index.", "label": "Variable Rate [Domain]", "terseLabel": "Variable Rate [Domain]" } } }, "localname": "VariableRateDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/DEBTNarrativeDetails", "http://cabotcmp.com/role/DEBTTotalDebtDetails" ], "xbrltype": "domainItemType" }, "us-gaap_VehiclesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Equipment used primarily for road transportation.", "label": "Vehicles [Member]", "terseLabel": "Vehicles" } } }, "localname": "VehiclesMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/PROPERTYPLANTANDEQUIPMENTDetails", "http://cabotcmp.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPropertyPlantandEquipmentDetails" ], "xbrltype": "domainItemType" }, "us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustmentAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract]", "verboseLabel": "Weighted average effect of dilutive securities" } } }, "localname": "WeightedAverageNumberDilutedSharesOutstandingAdjustmentAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EARNINGSPERSHAREDetails" ], "xbrltype": "stringItemType" }, "us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding": { "auth_ref": [ "r169", "r181" ], "calculation": { "http://cabotcmp.com/role/EARNINGSPERSHAREDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "lang": { "en-US": { "role": { "documentation": "The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.", "label": "Weighted Average Number of Shares Outstanding, Diluted", "terseLabel": "Weighted average diluted shares outstanding (in shares)", "totalLabel": "Diluted weighted average common shares (in shares)" } } }, "localname": "WeightedAverageNumberOfDilutedSharesOutstanding", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFINCOME", "http://cabotcmp.com/role/EARNINGSPERSHAREDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_WeightedAverageNumberOfSharesOutstandingBasic": { "auth_ref": [ "r167", "r181" ], "calculation": { "http://cabotcmp.com/role/EARNINGSPERSHAREDetails": { "order": 1.0, "parentTag": "us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding", "weight": 1.0 } }, "lang": { "en-US": { "role": { "documentation": "Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.", "label": "Weighted Average Number of Shares Outstanding, Basic", "terseLabel": "Weighted average basic shares outstanding (in shares)", "verboseLabel": "Weighted average common shares (in shares)" } } }, "localname": "WeightedAverageNumberOfSharesOutstandingBasic", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/CONSOLIDATEDSTATEMENTSOFINCOME", "http://cabotcmp.com/role/EARNINGSPERSHAREDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Weighted Average Number of Shares Outstanding, Basic [Abstract]", "verboseLabel": "Denominator:" } } }, "localname": "WeightedAverageNumberOfSharesOutstandingBasicAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://cabotcmp.com/role/EARNINGSPERSHAREDetails" ], "xbrltype": "stringItemType" } }, "unitCount": 7 } }, "std_ref": { "r0": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)", "Topic": "205", "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=d3e1361-107760" }, "r1": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "205", "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=SL51721683-107760" }, "r10": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=121566466&loc=d3e6911-107765" }, "r100": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585" }, "r101": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585" }, "r102": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585" }, "r103": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585" }, "r104": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585" }, "r105": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585" }, "r106": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585" }, "r107": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3291-108585" }, "r108": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3291-108585" }, "r109": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3291-108585" }, "r11": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=121566466&loc=d3e6935-107765" }, "r110": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3291-108585" }, "r111": { "Name": "Accounting Standards Codification", "Paragraph": "17", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3367-108585" }, "r112": { "Name": "Accounting Standards Codification", "Paragraph": "21C", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=SL94080552-108585" }, "r113": { "Name": "Accounting Standards Codification", "Paragraph": "24", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3521-108585" }, "r114": { "Name": "Accounting Standards Codification", "Paragraph": "25", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3536-108585" }, "r115": { "Name": "Accounting Standards Codification", "Paragraph": "25", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3536-108585" }, "r116": { "Name": "Accounting Standards Codification", "Paragraph": "27", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3581-108585" }, "r117": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585" }, "r118": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585" }, "r119": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585" }, "r12": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=121566466&loc=d3e7018-107765" }, "r120": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3044-108585" }, "r121": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121583591&loc=d3e4273-108586" }, "r122": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121583591&loc=d3e4297-108586" }, "r123": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121583591&loc=d3e4304-108586" }, "r124": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121583591&loc=d3e4313-108586" }, "r125": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121583591&loc=d3e4332-108586" }, "r126": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121583591&loc=SL98516268-108586" }, "r127": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=84158767&loc=d3e18726-107790" }, "r128": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790" }, "r129": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=84158767&loc=d3e18823-107790" }, "r13": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6361739&loc=d3e7789-107766" }, "r130": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08(g)(1)(ii))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690" }, "r131": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08(h)(1)(i))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690" }, "r132": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08(h))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690" }, "r133": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08.(e),(f))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690" }, "r134": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08.(f))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690" }, "r135": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08.(h)(1)(i))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690" }, "r136": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08.(h)(1))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690" }, "r137": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08.(h))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690" }, "r138": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08.(n))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690" }, "r139": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.12-04(a))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e24072-122690" }, "r14": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(1))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r140": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.12-04.(a))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e24072-122690" }, "r141": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.12-09(Column B))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690" }, "r142": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.12-09(Column C(1)))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690" }, "r143": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.12-09(Column C(2)))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690" }, "r144": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.12-09(Column C)(1))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690" }, "r145": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.12-09(Column D))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690" }, "r146": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.12-09(Column E))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690" }, "r147": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.12-09(ColumnA))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690" }, "r148": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.12-09)", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690" }, "r149": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "235", "URI": "http://asc.fasb.org/topic&trid=2122369" }, "r15": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(13))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r150": { "Name": "Accounting Standards Codification", "Paragraph": "23", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=115929471&loc=d3e21914-107793" }, "r151": { "Name": "Accounting Standards Codification", "Paragraph": "24", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=115929471&loc=d3e21930-107793" }, "r152": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=115929471&loc=d3e21711-107793" }, "r153": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=115929471&loc=d3e21728-107793" }, "r154": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)(2)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794" }, "r155": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)(3)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794" }, "r156": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)(4)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794" }, "r157": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(2)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794" }, "r158": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794" }, "r159": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22694-107794" }, "r16": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(14))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r160": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22694-107794" }, "r161": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22583-107794" }, "r162": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22595-107794" }, "r163": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22644-107794" }, "r164": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22644-107794" }, "r165": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22658-107794" }, "r166": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22663-107794" }, "r167": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=d3e1448-109256" }, "r168": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=d3e1377-109256" }, "r169": { "Name": "Accounting Standards Codification", "Paragraph": "16", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=d3e1505-109256" }, "r17": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(19))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r170": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=d3e1252-109256" }, "r171": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=d3e1707-109256" }, "r172": { "Name": "Accounting Standards Codification", "Paragraph": "23", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=d3e1757-109256" }, "r173": { "Name": "Accounting Standards Codification", "Paragraph": "28A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=d3e1500-109256" }, "r174": { "Name": "Accounting Standards Codification", "Paragraph": "60B", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=SL5780133-109256" }, "r175": { "Name": "Accounting Standards Codification", "Paragraph": "60B", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=SL5780133-109256" }, "r176": { "Name": "Accounting Standards Codification", "Paragraph": "60B", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=SL5780133-109256" }, "r177": { "Name": "Accounting Standards Codification", "Paragraph": "60B", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=SL5780133-109256" }, "r178": { "Name": "Accounting Standards Codification", "Paragraph": "65", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=d3e2793-109256" }, "r179": { "Name": "Accounting Standards Codification", "Paragraph": "66", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=d3e2814-109256" }, "r18": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(20))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r180": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=d3e1337-109256" }, "r181": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257" }, "r182": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257" }, "r183": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=6371337&loc=d3e3630-109257" }, "r184": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=109243012&loc=SL65017193-207537" }, "r185": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=120380238&loc=d3e3842-109258" }, "r186": { "Name": "Accounting Standards Codification", "Paragraph": "52", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=120380238&loc=d3e4984-109258" }, "r187": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "260", "URI": "http://asc.fasb.org/topic&trid=2144383" }, "r188": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "270", "URI": "http://asc.fasb.org/extlink&oid=116846552&loc=d3e543-108305" }, "r189": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "270", "URI": "http://asc.fasb.org/extlink&oid=121640914&loc=d3e1280-108306" }, "r19": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(22))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r190": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "270", "URI": "http://asc.fasb.org/topic&trid=2126967" }, "r191": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "272", "URI": "http://asc.fasb.org/extlink&oid=6828210&loc=d3e70191-108054" }, "r192": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592" }, "r193": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592" }, "r194": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592" }, "r195": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6161-108592" }, "r196": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6191-108592" }, "r197": { "Name": "Accounting Standards Codification", "Paragraph": "16", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6327-108592" }, "r198": { "Name": "Accounting Standards Codification", "Paragraph": "18", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592" }, "r199": { "Name": "Accounting Standards Codification", "Paragraph": "18", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592" }, "r2": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "205", "URI": "http://asc.fasb.org/topic&trid=2122149" }, "r20": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(28))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r200": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592" }, "r201": { "Name": "Accounting Standards Codification", "Paragraph": "21", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6442-108592" }, "r202": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6061-108592" }, "r203": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6132-108592" }, "r204": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6143-108592" }, "r205": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "275", "URI": "http://asc.fasb.org/topic&trid=2134479" }, "r206": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8657-108599" }, "r207": { "Name": "Accounting Standards Codification", "Paragraph": "18", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8672-108599" }, "r208": { "Name": "Accounting Standards Codification", "Paragraph": "21", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8721-108599" }, "r209": { "Name": "Accounting Standards Codification", "Paragraph": "21", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8721-108599" }, "r21": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(29))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r210": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599" }, "r211": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599" }, "r212": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599" }, "r213": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599" }, "r214": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599" }, "r215": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599" }, "r216": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(g)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599" }, "r217": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(h)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599" }, "r218": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(j)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599" }, "r219": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599" }, "r22": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(3))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r220": { "Name": "Accounting Standards Codification", "Paragraph": "25", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8813-108599" }, "r221": { "Name": "Accounting Standards Codification", "Paragraph": "25", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8813-108599" }, "r222": { "Name": "Accounting Standards Codification", "Paragraph": "25", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8813-108599" }, "r223": { "Name": "Accounting Standards Codification", "Paragraph": "26", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8844-108599" }, "r224": { "Name": "Accounting Standards Codification", "Paragraph": "30", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599" }, "r225": { "Name": "Accounting Standards Codification", "Paragraph": "30", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599" }, "r226": { "Name": "Accounting Standards Codification", "Paragraph": "30", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599" }, "r227": { "Name": "Accounting Standards Codification", "Paragraph": "30", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599" }, "r228": { "Name": "Accounting Standards Codification", "Paragraph": "30", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599" }, "r229": { "Name": "Accounting Standards Codification", "Paragraph": "31", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8924-108599" }, "r23": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(30)(a)(1))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r230": { "Name": "Accounting Standards Codification", "Paragraph": "32", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599" }, "r231": { "Name": "Accounting Standards Codification", "Paragraph": "32", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599" }, "r232": { "Name": "Accounting Standards Codification", "Paragraph": "32", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599" }, "r233": { "Name": "Accounting Standards Codification", "Paragraph": "32", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599" }, "r234": { "Name": "Accounting Standards Codification", "Paragraph": "32", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599" }, "r235": { "Name": "Accounting Standards Codification", "Paragraph": "32", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599" }, "r236": { "Name": "Accounting Standards Codification", "Paragraph": "34", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8981-108599" }, "r237": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e8475-108599" }, "r238": { "Name": "Accounting Standards Codification", "Paragraph": "40", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e9031-108599" }, "r239": { "Name": "Accounting Standards Codification", "Paragraph": "41", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e9038-108599" }, "r24": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(30)(a)(3))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r240": { "Name": "Accounting Standards Codification", "Paragraph": "41", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e9038-108599" }, "r241": { "Name": "Accounting Standards Codification", "Paragraph": "41", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e9038-108599" }, "r242": { "Name": "Accounting Standards Codification", "Paragraph": "42", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=120311839&loc=d3e9054-108599" }, "r243": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "280", "URI": "http://asc.fasb.org/topic&trid=2134510" }, "r244": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522" }, "r245": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121593590&loc=d3e4531-111522" }, "r246": { "Name": "Accounting Standards Codification", "Paragraph": "11B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524" }, "r247": { "Name": "Accounting Standards Codification", "Paragraph": "11B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(4)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524" }, "r248": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=d3e5033-111524" }, "r249": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=121611835&loc=d3e5074-111524" }, "r25": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(30)(a)(4))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r250": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 4.E)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=27010918&loc=d3e74512-122707" }, "r251": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=84159169&loc=d3e10133-111534" }, "r252": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=84159169&loc=d3e10149-111534" }, "r253": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=84159169&loc=d3e10178-111534" }, "r254": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121553693&loc=d3e26853-111562" }, "r255": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "323", "URI": "http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571" }, "r256": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121646688&loc=SL121648383-210437" }, "r257": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121646688&loc=SL121648383-210437" }, "r258": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121646688&loc=SL121648383-210437" }, "r259": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121646688&loc=SL121648383-210437" }, "r26": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(30))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r260": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(e)(3)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121646688&loc=SL121648383-210437" }, "r261": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(e)(4)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121646688&loc=SL121648383-210437" }, "r262": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599878&loc=SL82895884-210446" }, "r263": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447" }, "r264": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447" }, "r265": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(e)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447" }, "r266": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447" }, "r267": { "Name": "Accounting Standards Codification", "Paragraph": "79", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121647567&loc=SL82922352-210448" }, "r268": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "330", "URI": "http://asc.fasb.org/extlink&oid=116847112&loc=d3e4492-108314" }, "r269": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "330", "URI": "http://asc.fasb.org/extlink&oid=116847112&loc=d3e4556-108314" }, "r27": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(31))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r270": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 5.BB)", "Topic": "330", "URI": "http://asc.fasb.org/extlink&oid=27011343&loc=d3e100047-122729" }, "r271": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "330", "URI": "http://asc.fasb.org/topic&trid=2126998" }, "r272": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266" }, "r273": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=99380562&loc=d3e13777-109266" }, "r274": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=120320667&loc=SL49117168-202975" }, "r275": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267" }, "r276": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(e)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267" }, "r277": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(f)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267" }, "r278": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267" }, "r279": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=121556970&loc=d3e13854-109267" }, "r28": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(32))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r280": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=121556970&loc=d3e13854-109267" }, "r281": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274" }, "r282": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274" }, "r283": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275" }, "r284": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)(1)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275" }, "r285": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)(3)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275" }, "r286": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(b)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275" }, "r287": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(d)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275" }, "r288": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275" }, "r289": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "((a)(1),(b))", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275" }, "r29": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(4)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r290": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275" }, "r291": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)(1)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275" }, "r292": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)(2)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275" }, "r293": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)(3)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275" }, "r294": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(b)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275" }, "r295": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(d)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275" }, "r296": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(d)(2)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275" }, "r297": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(b),(d)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16373-109275" }, "r298": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "350", "URI": "http://asc.fasb.org/topic&trid=2144416" }, "r299": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "05", "SubTopic": "10", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=109226317&loc=d3e202-110218" }, "r3": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=121566466&loc=d3e6676-107765" }, "r30": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(6)(a)(1))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r300": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=109226348&loc=d3e2420-110228" }, "r301": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229" }, "r302": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229" }, "r303": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229" }, "r304": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229" }, "r305": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=109226691&loc=d3e2921-110230" }, "r306": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=109226691&loc=d3e2921-110230" }, "r307": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=109226691&loc=d3e2941-110230" }, "r308": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=109226691&loc=d3e2941-110230" }, "r309": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 5.CC)", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=27011434&loc=d3e125687-122742" }, "r31": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(6)(a)(3))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r310": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "360", "URI": "http://asc.fasb.org/topic&trid=2155823" }, "r311": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "35", "SubTopic": "20", "Topic": "410", "URI": "http://asc.fasb.org/extlink&oid=6392603&loc=d3e7123-110846" }, "r312": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "410", "URI": "http://asc.fasb.org/extlink&oid=6392676&loc=d3e7480-110848" }, "r313": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "410", "URI": "http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849" }, "r314": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)(1)", "Topic": "410", "URI": "http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849" }, "r315": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)(2)", "Topic": "410", "URI": "http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849" }, "r316": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)(3)", "Topic": "410", "URI": "http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849" }, "r317": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)(4)", "Topic": "410", "URI": "http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849" }, "r318": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "410", "URI": "http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849" }, "r319": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "SubTopic": "20", "Topic": "410", "URI": "http://asc.fasb.org/subtopic&trid=2175671" }, "r32": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(6)(a)(4))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r320": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "410", "URI": "http://asc.fasb.org/extlink&oid=6393242&loc=d3e13201-110859" }, "r321": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "420", "URI": "http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869" }, "r322": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "420", "URI": "http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869" }, "r323": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 5.P.3)", "Topic": "420", "URI": "http://asc.fasb.org/extlink&oid=115931487&loc=d3e140864-122747" }, "r324": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 5.P.4(b))", "Topic": "420", "URI": "http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747" }, "r325": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 5.P.4(d))", "Topic": "420", "URI": "http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747" }, "r326": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "440", "URI": "http://asc.fasb.org/extlink&oid=121559207&loc=d3e25336-109308" }, "r327": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "440", "URI": "http://asc.fasb.org/extlink&oid=121559207&loc=d3e25336-109308" }, "r328": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "440", "URI": "http://asc.fasb.org/extlink&oid=121559207&loc=d3e25336-109308" }, "r329": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "440", "URI": "http://asc.fasb.org/extlink&oid=121559207&loc=d3e25336-109308" }, "r33": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(6)(a))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r330": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "440", "URI": "http://asc.fasb.org/extlink&oid=121559207&loc=d3e25383-109308" }, "r331": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "440", "URI": "http://asc.fasb.org/topic&trid=2144648" }, "r332": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "450", "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349" }, "r333": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "450", "URI": "http://asc.fasb.org/extlink&oid=116646759&loc=d3e15243-108350" }, "r334": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "20", "Subparagraph": "(SAB Topic 5.Y.Q4)", "Topic": "450", "URI": "http://asc.fasb.org/extlink&oid=27011672&loc=d3e149879-122751" }, "r335": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "20", "Topic": "450", "URI": "http://asc.fasb.org/extlink&oid=27011672&loc=d3e149975-122751" }, "r336": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "450", "URI": "http://asc.fasb.org/topic&trid=2127136" }, "r337": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "460", "URI": "http://asc.fasb.org/extlink&oid=121555522&loc=d3e12053-110248" }, "r338": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "460", "URI": "http://asc.fasb.org/extlink&oid=121555522&loc=d3e12069-110248" }, "r339": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601" }, "r34": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(6)(b))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r340": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=6802200&loc=SL6230698-112601" }, "r341": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(1)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=120520924&loc=SL6031897-161870" }, "r342": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(2)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=120520924&loc=SL6031897-161870" }, "r343": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(3)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=120520924&loc=SL6031897-161870" }, "r344": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "470", "URI": "http://asc.fasb.org/topic&trid=2208564" }, "r345": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644" }, "r346": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644" }, "r347": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21506-112644" }, "r348": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21521-112644" }, "r349": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21538-112644" }, "r35": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(6)(c))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r350": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.3-04)", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770" }, "r351": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655" }, "r352": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=6405834&loc=d3e23315-112656" }, "r353": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121556615&loc=SL49130531-203044" }, "r354": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121556615&loc=SL49130532-203044" }, "r355": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121556615&loc=SL49130533-203044" }, "r356": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130551-203045" }, "r357": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045" }, "r358": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045" }, "r359": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045" }, "r36": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(7))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r360": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045" }, "r361": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045" }, "r362": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130556-203045" }, "r363": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)(1)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130556-203045" }, "r364": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)(2)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130556-203045" }, "r365": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130558-203045" }, "r366": { "Name": "Accounting Standards Codification", "Paragraph": "17", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130561-203045" }, "r367": { "Name": "Accounting Standards Codification", "Paragraph": "18", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130563-203045" }, "r368": { "Name": "Accounting Standards Codification", "Paragraph": "18", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130563-203045" }, "r369": { "Name": "Accounting Standards Codification", "Paragraph": "19", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130564-203045" }, "r37": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(8))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r370": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130566-203045" }, "r371": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130566-203045" }, "r372": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130566-203045" }, "r373": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130566-203045" }, "r374": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130543-203045" }, "r375": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045" }, "r376": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130549-203045" }, "r377": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130549-203045" }, "r378": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121604090&loc=SL49130550-203045" }, "r379": { "Name": "Accounting Standards Codification", "Paragraph": "91", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121551570&loc=SL49130690-203046-203046" }, "r38": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.1)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r380": { "Name": "Accounting Standards Codification", "Paragraph": "91", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121551570&loc=SL49130690-203046-203046" }, "r381": { "Name": "Accounting Standards Codification", "Paragraph": "91", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121551570&loc=SL49130690-203046-203046" }, "r382": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "606", "URI": "http://asc.fasb.org/topic&trid=49130388" }, "r383": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "15", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "712", "URI": "http://asc.fasb.org/extlink&oid=6410066&loc=d3e79218-111664" }, "r384": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "15", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "712", "URI": "http://asc.fasb.org/extlink&oid=6410066&loc=d3e79218-111664" }, "r385": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=109237824&loc=d3e1703-114919" }, "r386": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r387": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(1)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r388": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(10)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r389": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(2)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r39": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.13(a))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r390": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(3)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r391": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(4)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r392": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(5)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r393": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(6)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r394": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(7)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r395": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(8)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r396": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(9)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r397": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r398": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(1)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r399": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(2)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r4": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=121566466&loc=d3e6676-107765" }, "r40": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.13)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r400": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(3)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r401": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(4)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r402": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(5)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r403": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(6)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r404": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(7)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r405": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(8)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r406": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r407": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(i)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r408": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(ii)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r409": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(iii)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r41": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.14)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r410": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(iv)(01)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r411": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(iv)(02)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r412": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(iv)(02)(A)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r413": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(iv)(02)(B)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r414": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(iv)(02)(C)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r415": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(iv)(03)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r416": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(e)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r417": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(f)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r418": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(g)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r419": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(h)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r42": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.17)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r420": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(h)(1)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r421": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(h)(2)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r422": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(h)(3)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r423": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(h)(4)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r424": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(h)(5)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r425": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(h)(6)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r426": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(h)(7)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r427": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(i)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r428": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(j)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r429": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(k)(1)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r43": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.19(a))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r430": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(k)(2)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r431": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(k)(3)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r432": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(k)(4)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r433": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(l)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r434": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(n)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r435": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(o)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r436": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(p)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r437": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(q)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r438": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(r)(1)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r439": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(r)(2)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r44": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.19(a),20,24)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r440": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r441": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e2410-114920" }, "r442": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e2417-114920" }, "r443": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e2417-114920" }, "r444": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e2417-114920" }, "r445": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e2439-114920" }, "r446": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e2709-114920" }, "r447": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(1)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e2709-114920" }, "r448": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(2)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e2709-114920" }, "r449": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(3)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e2709-114920" }, "r45": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.19(b),22(b))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r450": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(4)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e2709-114920" }, "r451": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(5)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e2709-114920" }, "r452": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(6)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e2709-114920" }, "r453": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(7)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e2709-114920" }, "r454": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e2709-114920" }, "r455": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e2919-114920" }, "r456": { "Name": "Accounting Standards Codification", "Paragraph": "17", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921" }, "r457": { "Name": "Accounting Standards Codification", "Paragraph": "18", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118257860&loc=d3e4587-114921" }, "r458": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "20", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=21916913&loc=d3e273930-122802" }, "r459": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "60", "Subparagraph": "(c)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=6414203&loc=d3e39689-114964" }, "r46": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.19,20)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r460": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "70", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942" }, "r461": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "35", "SubTopic": "80", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=29639808&loc=d3e29008-114946" }, "r462": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "80", "Subparagraph": "(a)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450702-114947" }, "r463": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "80", "Subparagraph": "(b)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450702-114947" }, "r464": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "80", "Subparagraph": "(c)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450702-114947" }, "r465": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "80", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450702-114947" }, "r466": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "80", "Subparagraph": "(a)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947" }, "r467": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "80", "Subparagraph": "(b)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947" }, "r468": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "80", "Subparagraph": "(c)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947" }, "r469": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "80", "Subparagraph": "(d)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947" }, "r47": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.19-26)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r470": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "80", "Subparagraph": "(e)(1)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947" }, "r471": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "80", "Subparagraph": "(e)(2)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947" }, "r472": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "80", "Subparagraph": "(f)(1)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947" }, "r473": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "80", "Subparagraph": "(f)(2)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947" }, "r474": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "80", "Subparagraph": "(f)(3)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947" }, "r475": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "80", "Subparagraph": "(a)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450673-114947" }, "r476": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "80", "Subparagraph": "(b)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450673-114947" }, "r477": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "80", "Subparagraph": "(c)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450673-114947" }, "r478": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "80", "Subparagraph": "(b)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450691-114947" }, "r479": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "55", "SubTopic": "80", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=35742348&loc=SL14450788-114948" }, "r48": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.20)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r480": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "715", "URI": "http://asc.fasb.org/topic&trid=2235017" }, "r481": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "35", "SubTopic": "10", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=121326096&loc=d3e4534-113899" }, "r482": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901" }, "r483": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901" }, "r484": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901" }, "r485": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(1)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r486": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(3)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r487": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a),(g)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r488": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b),(f)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r489": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r49": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.21)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r490": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)(i)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r491": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)(i)-(ii)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r492": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)(iii)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r493": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)(iv)(1)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r494": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)(iv)(2)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r495": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)(iv)(3)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r496": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)(iv)(3)-(4)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r497": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(2)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r498": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(2)(i)-(ii)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r499": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(2)(iii)(1)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r5": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=121566466&loc=d3e6676-107765" }, "r50": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.22)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r500": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(2)(iii)(2)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r501": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(2)(iii)(3)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r502": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r503": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)(1)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r504": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)(2)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r505": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r506": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(e)(1)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r507": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)(2)(i)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r508": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)(2)(ii)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r509": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)(2)(iii)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r51": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.24)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r510": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)(2)(iv)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r511": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(g)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r512": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(h)(1)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r513": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(h)(1)(i)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r514": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(i)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r515": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r516": { "Name": "Accounting Standards Codification", "Paragraph": "2A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=SL79508275-113901" }, "r517": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333" }, "r518": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333" }, "r519": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333" }, "r52": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.25)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r520": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333" }, "r521": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333" }, "r522": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(f)(1)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333" }, "r523": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(f)(2)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333" }, "r524": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(g)(2)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333" }, "r525": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 14.D.2)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809" }, "r526": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 14.F)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809" }, "r527": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120383193&loc=d3e11149-113907" }, "r528": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120383193&loc=d3e11178-113907" }, "r529": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "718", "URI": "http://asc.fasb.org/topic&trid=2228938" }, "r53": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.29,30)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r530": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "720", "URI": "http://asc.fasb.org/extlink&oid=6419918&loc=d3e35281-107843" }, "r531": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "730", "URI": "http://asc.fasb.org/extlink&oid=6420194&loc=d3e21568-108373" }, "r532": { "Name": "Accounting Standards Codification", "Paragraph": "10B", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=120406818&loc=SL37586934-109318" }, "r533": { "Name": "Accounting Standards Codification", "Paragraph": "25", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=120406818&loc=d3e32247-109318" }, "r534": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=120406818&loc=d3e32280-109318" }, "r535": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=120406818&loc=d3e31917-109318" }, "r536": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=120406818&loc=d3e31931-109318" }, "r537": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32672-109319" }, "r538": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319" }, "r539": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32705-109319" }, "r54": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.29-31)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r540": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319" }, "r541": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319" }, "r542": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319" }, "r543": { "Name": "Accounting Standards Codification", "Paragraph": "15A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319" }, "r544": { "Name": "Accounting Standards Codification", "Paragraph": "15A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(1)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319" }, "r545": { "Name": "Accounting Standards Codification", "Paragraph": "15A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(2)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319" }, "r546": { "Name": "Accounting Standards Codification", "Paragraph": "15A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(4)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319" }, "r547": { "Name": "Accounting Standards Codification", "Paragraph": "15A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319" }, "r548": { "Name": "Accounting Standards Codification", "Paragraph": "17", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32809-109319" }, "r549": { "Name": "Accounting Standards Codification", "Paragraph": "19", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32840-109319" }, "r55": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.6(a))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r550": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319" }, "r551": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319" }, "r552": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32847-109319" }, "r553": { "Name": "Accounting Standards Codification", "Paragraph": "21", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32857-109319" }, "r554": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319" }, "r555": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319" }, "r556": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32621-109319" }, "r557": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32632-109319" }, "r558": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32639-109319" }, "r559": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32639-109319" }, "r56": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.6(b))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r560": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32639-109319" }, "r561": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "740" }, "r562": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "740" }, "r563": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(d)(2)", "Topic": "740" }, "r564": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(d)(3)", "Topic": "740" }, "r565": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB TOPIC 6.I.5.Q1)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=116825942&loc=d3e330036-122817" }, "r566": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB TOPIC 6.I.7)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=116825942&loc=d3e330036-122817" }, "r567": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 6.I.7)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=116825942&loc=d3e330036-122817" }, "r568": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 6.I.Fact.1)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=116825942&loc=d3e330036-122817" }, "r569": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 6.I.Fact.2)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=116825942&loc=d3e330036-122817" }, "r57": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.9)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r570": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 6.I.Fact.3)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=116825942&loc=d3e330036-122817" }, "r571": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 6.I.Fact.4)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=116825942&loc=d3e330036-122817" }, "r572": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 11.C)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=116825942&loc=d3e330215-122817" }, "r573": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=120385591&loc=d3e38679-109324" }, "r574": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "270", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=6424409&loc=d3e44925-109338" }, "r575": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=6424122&loc=d3e41874-109331" }, "r576": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "740", "URI": "http://asc.fasb.org/topic&trid=2144680" }, "r577": { "Name": "Accounting Standards Codification", "Paragraph": "23", "Publisher": "FASB", "Section": "25", "SubTopic": "10", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=116868678&loc=d3e1043-128460" }, "r578": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(g)(1)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463" }, "r579": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(h)(2)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463" }, "r58": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312" }, "r580": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(h)(3)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463" }, "r581": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(h)(4)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463" }, "r582": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463" }, "r583": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=79982066&loc=d3e1486-128463" }, "r584": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=121647850&loc=d3e4845-128472" }, "r585": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=121647850&loc=d3e4922-128472" }, "r586": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=121598580&loc=d3e5227-128473" }, "r587": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=121598580&loc=d3e5333-128473" }, "r588": { "Name": "Accounting Standards Codification", "Paragraph": "31", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Subparagraph": "(i)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=121598580&loc=d3e5419-128473" }, "r589": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "30", "SubTopic": "30", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=116859721&loc=d3e6578-128477" }, "r59": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312" }, "r590": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "30", "SubTopic": "30", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=116859721&loc=d3e6613-128477" }, "r591": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(b)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479" }, "r592": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(b)(1)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479" }, "r593": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "805", "URI": "http://asc.fasb.org/topic&trid=2303972" }, "r594": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=108774443&loc=SL4568447-111683" }, "r595": { "Name": "Accounting Standards Codification", "Paragraph": "16", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=108774443&loc=SL4568740-111683" }, "r596": { "Name": "Accounting Standards Codification", "Paragraph": "19", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=108774443&loc=SL4569616-111683" }, "r597": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=108774443&loc=SL4569643-111683" }, "r598": { "Name": "Accounting Standards Codification", "Paragraph": "25", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=116870748&loc=SL6758485-165988" }, "r599": { "Name": "Accounting Standards Codification", "Paragraph": "25", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=116870748&loc=SL6758485-165988" }, "r6": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=121566466&loc=d3e6676-107765" }, "r60": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313" }, "r600": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=d3e5614-111684" }, "r601": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(3)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684" }, "r602": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c),(3)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684" }, "r603": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(bb)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=121559654&loc=d3e5710-111685" }, "r604": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=121559654&loc=d3e5710-111685" }, "r605": { "Name": "Accounting Standards Codification", "Paragraph": "4I", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=120409616&loc=SL4590271-111686" }, "r606": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5579240-113959" }, "r607": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959" }, "r608": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959" }, "r609": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5580258-113959" }, "r61": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=99393222&loc=SL20226000-175313" }, "r610": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=d3e41620-113959" }, "r611": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=d3e41638-113959" }, "r612": { "Name": "Accounting Standards Codification", "Paragraph": "4A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5618551-113959" }, "r613": { "Name": "Accounting Standards Codification", "Paragraph": "4A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5618551-113959" }, "r614": { "Name": "Accounting Standards Codification", "Paragraph": "4A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)(1)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5618551-113959" }, "r615": { "Name": "Accounting Standards Codification", "Paragraph": "4B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a),(c)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5624163-113959" }, "r616": { "Name": "Accounting Standards Codification", "Paragraph": "4B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5624163-113959" }, "r617": { "Name": "Accounting Standards Codification", "Paragraph": "4B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5624163-113959" }, "r618": { "Name": "Accounting Standards Codification", "Paragraph": "4B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5624163-113959" }, "r619": { "Name": "Accounting Standards Codification", "Paragraph": "4C", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5624171-113959" }, "r62": { "Name": "Accounting Standards Codification", "Paragraph": "10A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a),(b),(c)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669646-108580" }, "r620": { "Name": "Accounting Standards Codification", "Paragraph": "4D", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(1)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5624177-113959" }, "r621": { "Name": "Accounting Standards Codification", "Paragraph": "4D", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(2)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5624177-113959" }, "r622": { "Name": "Accounting Standards Codification", "Paragraph": "4D", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5624177-113959" }, "r623": { "Name": "Accounting Standards Codification", "Paragraph": "4D", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5624177-113959" }, "r624": { "Name": "Accounting Standards Codification", "Paragraph": "4E", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5624181-113959" }, "r625": { "Name": "Accounting Standards Codification", "Paragraph": "4F", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=SL5624186-113959" }, "r626": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=d3e41641-113959" }, "r627": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=d3e41675-113959" }, "r628": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121590274&loc=d3e41678-113959" }, "r629": { "Name": "Accounting Standards Codification", "Paragraph": "182", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121582272&loc=SL5629052-113961" }, "r63": { "Name": "Accounting Standards Codification", "Paragraph": "10A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669646-108580" }, "r630": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "25", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121577467&loc=d3e76258-113986" }, "r631": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121549185&loc=d3e80845-113994" }, "r632": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "815", "URI": "http://asc.fasb.org/topic&trid=2229140" }, "r633": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r634": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r635": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(bb)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r636": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(bbb)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r637": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(bbb)(1)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r638": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(bbb)(2)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r639": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r64": { "Name": "Accounting Standards Codification", "Paragraph": "10A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(i),(j),(k)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669646-108580" }, "r640": { "Name": "Accounting Standards Codification", "Paragraph": "2C", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=SL7498348-110258" }, "r641": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19279-110258" }, "r642": { "Name": "Accounting Standards Codification", "Paragraph": "6A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=SL6742756-110258" }, "r643": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "60", "SubTopic": "10", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=7493716&loc=d3e21868-110260" }, "r644": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=121572278&loc=d3e13279-108611" }, "r645": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=121572278&loc=d3e13433-108611" }, "r646": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=121572278&loc=d3e13531-108611" }, "r647": { "Name": "Accounting Standards Codification", "Paragraph": "21", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=121572278&loc=d3e13537-108611" }, "r648": { "Name": "Accounting Standards Codification", "Paragraph": "21", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=121572278&loc=d3e13537-108611" }, "r649": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=75031198&loc=d3e14064-108612" }, "r65": { "Name": "Accounting Standards Codification", "Paragraph": "10A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(i-k)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669646-108580" }, "r650": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=109240200&loc=d3e30690-110894" }, "r651": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=6450222&loc=d3e30840-110895" }, "r652": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "230", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=98513438&loc=d3e33268-110906" }, "r653": { "Name": "Accounting Standards Codification", "Paragraph": "17", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32136-110900" }, "r654": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Subparagraph": "(a)", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900" }, "r655": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Subparagraph": "(b)", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900" }, "r656": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Subparagraph": "(c)", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900" }, "r657": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Subparagraph": "(d)", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900" }, "r658": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900" }, "r659": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901" }, "r66": { "Name": "Accounting Standards Codification", "Paragraph": "10A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669646-108580" }, "r660": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "835", "URI": "http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391" }, "r661": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "835", "URI": "http://asc.fasb.org/extlink&oid=119993939&loc=d3e28541-108399" }, "r662": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "835", "URI": "http://asc.fasb.org/extlink&oid=119993939&loc=d3e28551-108399" }, "r663": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "835", "URI": "http://asc.fasb.org/extlink&oid=119993939&loc=d3e28555-108399" }, "r664": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "55", "SubTopic": "30", "Topic": "835", "URI": "http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400" }, "r665": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "840", "URI": "http://asc.fasb.org/extlink&oid=121549808&loc=d3e36991-112694" }, "r666": { "Name": "Accounting Standards Codification", "Paragraph": "40", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Subparagraph": "(Note 1,3)", "Topic": "840", "URI": "http://asc.fasb.org/extlink&oid=121580752&loc=d3e38371-112697" }, "r667": { "Name": "Accounting Standards Codification", "Paragraph": "40", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Subparagraph": "(Note 3)", "Topic": "840", "URI": "http://asc.fasb.org/extlink&oid=121580752&loc=d3e38371-112697" }, "r668": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "840", "URI": "http://asc.fasb.org/extlink&oid=121573735&loc=d3e41499-112717" }, "r669": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "840", "URI": "http://asc.fasb.org/extlink&oid=121573735&loc=d3e41502-112717" }, "r67": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=d3e637-108580" }, "r670": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "840", "URI": "http://asc.fasb.org/extlink&oid=121573735&loc=d3e41502-112717" }, "r671": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121329987&loc=SL77916155-209984" }, "r672": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977" }, "r673": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977" }, "r674": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121603541&loc=SL77918631-209977" }, "r675": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121603541&loc=SL77918638-209977" }, "r676": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121603541&loc=SL77918643-209977" }, "r677": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918666-209980" }, "r678": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(3)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918673-209980" }, "r679": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980" }, "r68": { "Name": "Accounting Standards Codification", "Paragraph": "12A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL116659650-108580" }, "r680": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(g)(1)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980" }, "r681": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(g)(2)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980" }, "r682": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(g)(3)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980" }, "r683": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(g)(4)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980" }, "r684": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980" }, "r685": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980" }, "r686": { "Name": "Accounting Standards Codification", "Paragraph": "53", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=121568110&loc=SL77918982-209971" }, "r687": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "SubTopic": "20", "Topic": "842", "URI": "http://asc.fasb.org/subtopic&trid=77888251" }, "r688": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(bb)(1)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719" }, "r689": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(bb)(2)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719" }, "r69": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=d3e681-108580" }, "r690": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(bb)(3)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719" }, "r691": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)(1)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719" }, "r692": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)(2)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719" }, "r693": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)(3)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719" }, "r694": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(1)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719" }, "r695": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(2)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719" }, "r696": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(3)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719" }, "r697": { "Name": "Accounting Standards Codification", "Paragraph": "4D", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)(2)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=SL51823488-111719" }, "r698": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "910", "URI": "http://asc.fasb.org/extlink&oid=119991564&loc=SL119991595-234733" }, "r699": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 11.L)", "Topic": "924", "URI": "http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856" }, "r7": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=121566466&loc=d3e6801-107765" }, "r70": { "Name": "Accounting Standards Codification", "Paragraph": "14A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669686-108580" }, "r700": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "926", "URI": "http://asc.fasb.org/extlink&oid=120154696&loc=d3e54445-107959" }, "r701": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "926", "URI": "http://asc.fasb.org/extlink&oid=120154821&loc=SL120154904-197079" }, "r702": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "926", "URI": "http://asc.fasb.org/extlink&oid=120154821&loc=SL120154904-197079" }, "r703": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "926", "URI": "http://asc.fasb.org/extlink&oid=120154821&loc=SL120154904-197079" }, "r704": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "340", "Topic": "928", "URI": "http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004" }, "r705": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(10)(1))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r706": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(11))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r707": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(13))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r708": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(15)(1))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r709": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(16))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r71": { "Name": "Accounting Standards Codification", "Paragraph": "17B", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL34724394-108580" }, "r710": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(23))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r711": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03.17)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r712": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04(22))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r713": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04(23))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r714": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04(26))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r715": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04(27))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r716": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04.9)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r717": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "235", "Subparagraph": "(SX 210.9-05(b)(2))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399901&loc=d3e537907-122884" }, "r718": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "405", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=6957935&loc=d3e64057-112817" }, "r719": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "470", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823" }, "r72": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669619-108580" }, "r720": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "825", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=108315417&loc=d3e61044-112788" }, "r721": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(16))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r722": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(12))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r723": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(15)(b)(1))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r724": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(16))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r725": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(23)(a)(3))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r726": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(23)(a)(4))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r727": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(25))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r728": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(8))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r729": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03.(a),19)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r73": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669619-108580" }, "r730": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.7-04(18))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263" }, "r731": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.7-04(19))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263" }, "r732": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.7-04(22))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263" }, "r733": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.7-04(23))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263" }, "r734": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.7-04(9))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263" }, "r735": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "40", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=116884095&loc=d3e14764-158437" }, "r736": { "Name": "Accounting Standards Codification", "Paragraph": "4H", "Publisher": "FASB", "Section": "50", "SubTopic": "40", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=116884468&loc=SL65671331-158438" }, "r737": { "Name": "Accounting Standards Codification", "Paragraph": "7A", "Publisher": "FASB", "Section": "50", "SubTopic": "40", "Subparagraph": "(d)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121643868&loc=SL117782755-158439" }, "r738": { "Name": "Accounting Standards Codification", "Paragraph": "13H", "Publisher": "FASB", "Section": "55", "SubTopic": "40", "Subparagraph": "(a)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121639165&loc=SL117783719-158441" }, "r739": { "Name": "Accounting Standards Codification", "Paragraph": "13H", "Publisher": "FASB", "Section": "55", "SubTopic": "40", "Subparagraph": "(b)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121639165&loc=SL117783719-158441" }, "r74": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669619-108580" }, "r740": { "Name": "Accounting Standards Codification", "Paragraph": "13H", "Publisher": "FASB", "Section": "55", "SubTopic": "40", "Subparagraph": "(c)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121639165&loc=SL117783719-158441" }, "r741": { "Name": "Accounting Standards Codification", "Paragraph": "29F", "Publisher": "FASB", "Section": "55", "SubTopic": "40", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121639165&loc=SL117819544-158441" }, "r742": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(a)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641" }, "r743": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(b)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641" }, "r744": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(e)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641" }, "r745": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(f)(1)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641" }, "r746": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(f)(2)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641" }, "r747": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(g)(1)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641" }, "r748": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(g)(2)(i)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641" }, "r749": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(g)(2)(ii)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641" }, "r75": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669625-108580" }, "r750": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(g)(2)(iii)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641" }, "r751": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(g)(2)(iv)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641" }, "r752": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(h)(1)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641" }, "r753": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(h)(2)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641" }, "r754": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "50", "SubTopic": "825", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=99380617&loc=SL75241803-196195" }, "r755": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "310", "Subparagraph": "(SX 210.12-29(Footnote 4))", "Topic": "948", "URI": "http://asc.fasb.org/extlink&oid=120402547&loc=d3e617274-123014" }, "r756": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "740", "Topic": "954", "URI": "http://asc.fasb.org/extlink&oid=6491622&loc=d3e9504-115650" }, "r757": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "360", "Subparagraph": "(d)", "Topic": "958", "URI": "http://asc.fasb.org/extlink&oid=120429125&loc=d3e99779-112916" }, "r758": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "360", "Topic": "958", "URI": "http://asc.fasb.org/extlink&oid=120429125&loc=d3e99893-112916" }, "r759": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "360", "Topic": "958", "URI": "http://asc.fasb.org/extlink&oid=120429125&loc=SL120174063-112916" }, "r76": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669625-108580" }, "r760": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "360", "Subparagraph": "(SX 210.12-28(Column B))", "Topic": "970", "URI": "http://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024" }, "r761": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "360", "Subparagraph": "(SX 210.12-28(Column C))", "Topic": "970", "URI": "http://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024" }, "r762": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "360", "Subparagraph": "(SX 210.12-28(Column D))", "Topic": "970", "URI": "http://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024" }, "r763": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "360", "Subparagraph": "(SX 210.12-28(Column E))", "Topic": "970", "URI": "http://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024" }, "r764": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "360", "Subparagraph": "(SX 210.12-28(Column F))", "Topic": "970", "URI": "http://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024" }, "r765": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "360", "Subparagraph": "(SX 210.12-28(Column G))", "Topic": "970", "URI": "http://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024" }, "r766": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "360", "Subparagraph": "(SX 210.12-28(Column H))", "Topic": "970", "URI": "http://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024" }, "r767": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "360", "Subparagraph": "(SX 210.12-28(Column I))", "Topic": "970", "URI": "http://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024" }, "r768": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "360", "Subparagraph": "(SX 210.12-28(Footnote 2))", "Topic": "970", "URI": "http://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024" }, "r769": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "985", "URI": "http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756" }, "r77": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=d3e557-108580" }, "r770": { "Name": "Exchange Act", "Number": "240", "Publisher": "SEC", "Section": "12", "Subsection": "b" }, "r771": { "Name": "Exchange Act", "Number": "240", "Publisher": "SEC", "Section": "12", "Subsection": "b-23" }, "r772": { "Name": "Exchange Act", "Number": "240", "Publisher": "SEC", "Section": "12", "Subsection": "d1-1" }, "r773": { "Name": "Form 10-K", "Number": "249", "Publisher": "SEC", "Section": "310" }, "r774": { "Name": "Form 20-F", "Number": "249", "Publisher": "SEC", "Section": "220", "Subsection": "f" }, "r775": { "Name": "Form 40-F", "Number": "249", "Publisher": "SEC", "Section": "240", "Subsection": "f" }, "r776": { "Name": "Forms 10-K, 10-Q, 20-F", "Number": "240", "Publisher": "SEC", "Section": "13", "Subsection": "a-1" }, "r777": { "Name": "Regulation 12B", "Number": "240", "Publisher": "SEC", "Section": "12", "Subsection": "b-2" }, "r778": { "Name": "Regulation S-T", "Number": "232", "Publisher": "SEC", "Section": "405" }, "r779": { "Footnote": "2", "Name": "Regulation S-X (SX)", "Number": "210", "Publisher": "SEC", "Section": "12", "Subsection": "28" }, "r78": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=116657188&loc=SL116659661-227067" }, "r780": { "Footnote": "4", "Name": "Regulation S-X (SX)", "Number": "210", "Publisher": "SEC", "Section": "12", "Subsection": "29" }, "r781": { "Name": "Regulation S-X (SX)", "Number": "210", "Publisher": "SEC", "Section": "12", "Subsection": "09" }, "r79": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(210.5-03(11))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227" }, "r8": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=121566466&loc=d3e6812-107765" }, "r80": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(1))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227" }, "r81": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(20))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227" }, "r82": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(21))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227" }, "r83": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(24))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227" }, "r84": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(25))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227" }, "r85": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(5))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227" }, "r86": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(8))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227" }, "r87": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.1)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227" }, "r88": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.1,2)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227" }, "r89": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.19)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227" }, "r9": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=121566466&loc=d3e6904-107765" }, "r90": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.2(a),(d))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227" }, "r91": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.4)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227" }, "r92": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.7(b))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227" }, "r93": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.7)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227" }, "r94": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.9)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227" }, "r95": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "220", "URI": "http://asc.fasb.org/topic&trid=2134417" }, "r96": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3151-108585" }, "r97": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3179-108585" }, "r98": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3179-108585" }, "r99": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3179-108585" } }, "version": "2.1" }