{ "instance": { "ottr-20210331.htm": { "axisCustom": 0, "axisStandard": 20, "contextCount": 201, "dts": { "calculationLink": { "local": [ "ottr-20210331_cal.xml" ] }, "definitionLink": { "local": [ "ottr-20210331_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": [ "ottr-20210331.htm" ] }, "labelLink": { "local": [ "ottr-20210331_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" ] }, "presentationLink": { "local": [ "ottr-20210331_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" ] }, "schema": { "local": [ "ottr-20210331.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/deprecated-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" ] } }, "elementCount": 447, "entityCount": 1, "hidden": { "http://fasb.org/us-gaap/2020-01-31": 1, "http://xbrl.sec.gov/dei/2020-01-31": 5, "total": 6 }, "keyCustom": 23, "keyStandard": 295, "memberCustom": 53, "memberStandard": 24, "nsprefix": "ottr", "nsuri": "http://www.otpco.com/20210331", "report": { "R1": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "dei:DocumentType", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "true", "longName": "0001001 - Document - Cover", "role": "http://www.otpco.com/role/Cover", "shortName": "Cover", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "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": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SegmentReportingDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2104102 - Disclosure - Segment Information", "role": "http://www.otpco.com/role/SegmentInformation", "shortName": "Segment Information", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SegmentReportingDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R11": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:RevenueFromContractWithCustomerTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2108103 - Disclosure - Revenue", "role": "http://www.otpco.com/role/Revenue", "shortName": "Revenue", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:RevenueFromContractWithCustomerTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R12": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SupplementalBalanceSheetDisclosuresTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2111104 - Disclosure - Select Balance Sheet Information", "role": "http://www.otpco.com/role/SelectBalanceSheetInformation", "shortName": "Select Balance Sheet Information", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SupplementalBalanceSheetDisclosuresTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R13": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfRegulatoryAssetsAndLiabilitiesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2118105 - Disclosure - Regulatory Matters", "role": "http://www.otpco.com/role/RegulatoryMatters", "shortName": "Regulatory Matters", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfRegulatoryAssetsAndLiabilitiesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R14": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DebtDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2121106 - Disclosure - Short-Term and Long-Term Borrowings", "role": "http://www.otpco.com/role/ShortTermandLongTermBorrowings", "shortName": "Short-Term and Long-Term Borrowings", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DebtDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R15": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:PensionAndOtherPostretirementBenefitsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2126107 - Disclosure - Pension Plan and Other Postretirement Benefits", "role": "http://www.otpco.com/role/PensionPlanandOtherPostretirementBenefits", "shortName": "Pension Plan and Other Postretirement Benefits", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:PensionAndOtherPostretirementBenefitsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R16": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:IncomeTaxDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2130108 - Disclosure - Income Taxes", "role": "http://www.otpco.com/role/IncomeTaxes", "shortName": "Income Taxes", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:IncomeTaxDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R17": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2133109 - Disclosure - Commitments and Contingencies", "role": "http://www.otpco.com/role/CommitmentsandContingencies", "shortName": "Commitments and Contingencies", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R18": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:StockholdersEquityNoteDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2135110 - Disclosure - Stockholders' Equity", "role": "http://www.otpco.com/role/StockholdersEquity", "shortName": "Stockholders' Equity", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:StockholdersEquityNoteDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R19": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2137111 - Disclosure - Share-Based Payments", "role": "http://www.otpco.com/role/ShareBasedPayments", "shortName": "Share-Based Payments", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R2": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i5458f4d6e23940ca92dd24eb67c70571_I20210331", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1001002 - Statement - Consolidated Balance Sheets", "role": "http://www.otpco.com/role/ConsolidatedBalanceSheets", "shortName": "Consolidated Balance Sheets", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i5458f4d6e23940ca92dd24eb67c70571_I20210331", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R20": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:EarningsPerShareTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2142112 - Disclosure - Earnings Per Share", "role": "http://www.otpco.com/role/EarningsPerShare", "shortName": "Earnings Per Share", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:EarningsPerShareTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R21": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FairValueDisclosuresTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2145113 - Disclosure - Fair Value Measurements", "role": "http://www.otpco.com/role/FairValueMeasurements", "shortName": "Fair Value Measurements", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FairValueDisclosuresTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R22": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:BasisOfAccountingPolicyPolicyTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2202201 - Disclosure - Summary of Significant Accounting Policies (Policies)", "role": "http://www.otpco.com/role/SummaryofSignificantAccountingPoliciesPolicies", "shortName": "Summary of Significant Accounting Policies (Policies)", "subGroupType": "policies", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:BasisOfAccountingPolicyPolicyTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R23": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfSegmentReportingInformationBySegmentTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2305301 - Disclosure - Segment Information (Tables)", "role": "http://www.otpco.com/role/SegmentInformationTables", "shortName": "Segment Information (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfSegmentReportingInformationBySegmentTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R24": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DisaggregationOfRevenueTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2309302 - Disclosure - Revenue (Tables)", "role": "http://www.otpco.com/role/RevenueTables", "shortName": "Revenue (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DisaggregationOfRevenueTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R25": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2312303 - Disclosure - Select Balance Sheet Information (Tables)", "role": "http://www.otpco.com/role/SelectBalanceSheetInformationTables", "shortName": "Select Balance Sheet Information (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R26": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "ottr:ScheduleOfRegulatoryAssetsAndLiabilitiesTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2319304 - Disclosure - Regulatory Matters (Tables)", "role": "http://www.otpco.com/role/RegulatoryMattersTables", "shortName": "Regulatory Matters (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "ottr:ScheduleOfRegulatoryAssetsAndLiabilitiesTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R27": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfLineOfCreditFacilitiesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2322305 - Disclosure - Short-Term and Long-Term Borrowings (Tables)", "role": "http://www.otpco.com/role/ShortTermandLongTermBorrowingsTables", "shortName": "Short-Term and Long-Term Borrowings (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfLineOfCreditFacilitiesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R28": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfNetBenefitCostsTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2327306 - Disclosure - Pension Plan and Other Postretirement Benefits (Tables)", "role": "http://www.otpco.com/role/PensionPlanandOtherPostretirementBenefitsTables", "shortName": "Pension Plan and Other Postretirement Benefits (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfNetBenefitCostsTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R29": { "firstAnchor": { "ancestors": [ "div", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2331307 - Disclosure - Income Taxes (Tables)", "role": "http://www.otpco.com/role/IncomeTaxesTables", "shortName": "Income Taxes (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "div", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R3": { "firstAnchor": { "ancestors": [ "span", "div", "td", "tr", "table", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i5458f4d6e23940ca92dd24eb67c70571_I20210331", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:CommonStockSharesAuthorized", "reportCount": 1, "unique": true, "unitRef": "shares", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1002003 - Statement - Consolidated Balance Sheets (Parentheticals)", "role": "http://www.otpco.com/role/ConsolidatedBalanceSheetsParentheticals", "shortName": "Consolidated Balance Sheets (Parentheticals)", "subGroupType": "parenthetical", "uniqueAnchor": { "ancestors": [ "span", "div", "td", "tr", "table", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i5458f4d6e23940ca92dd24eb67c70571_I20210331", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:CommonStockSharesAuthorized", "reportCount": 1, "unique": true, "unitRef": "shares", "xsiNil": "false" } }, "R30": { "firstAnchor": { "ancestors": [ "div", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i7851798e531549c7b04471423ed4fd5d_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2338308 - Disclosure - Share-Based Payments (Tables)", "role": "http://www.otpco.com/role/ShareBasedPaymentsTables", "shortName": "Share-Based Payments (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "div", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i7851798e531549c7b04471423ed4fd5d_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R31": { "firstAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2343309 - Disclosure - Earnings Per Share (Tables)", "role": "http://www.otpco.com/role/EarningsPerShareTables", "shortName": "Earnings Per Share (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R32": { "firstAnchor": { "ancestors": [ "div", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2346310 - Disclosure - Fair Value Measurements (Tables)", "role": "http://www.otpco.com/role/FairValueMeasurementsTables", "shortName": "Fair Value Measurements (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "div", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R33": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:NumberOfOperatingSegments", "reportCount": 1, "unique": true, "unitRef": "segment", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2403401 - Disclosure - Summary of Significant Accounting Policies - Narrative (Details)", "role": "http://www.otpco.com/role/SummaryofSignificantAccountingPoliciesNarrativeDetails", "shortName": "Summary of Significant Accounting Policies - Narrative (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:NumberOfOperatingSegments", "reportCount": 1, "unique": true, "unitRef": "segment", "xsiNil": "false" } }, "R34": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:NumberOfReportableSegments", "reportCount": 1, "unique": true, "unitRef": "segment", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2406402 - Disclosure - Segment Information - Narrative (Details)", "role": "http://www.otpco.com/role/SegmentInformationNarrativeDetails", "shortName": "Segment Information - Narrative (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:NumberOfReportableSegments", "reportCount": 1, "unique": true, "unitRef": "segment", "xsiNil": "false" } }, "R35": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:DisaggregationOfRevenueTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:Revenues", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2407403 - Disclosure - Segment Information - Business Segments (Details)", "role": "http://www.otpco.com/role/SegmentInformationBusinessSegmentsDetails", "shortName": "Segment Information - Business Segments (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfSegmentReportingInformationBySegmentTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i0c39f2c8027f4d1bb8fea9444282064f_D20210101-20210331", "decimals": "-3", "lang": "en-US", "name": "us-gaap:NetIncomeLoss", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R36": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:DisaggregationOfRevenueTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:Revenues", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2410404 - Disclosure - Revenue (Details)", "role": "http://www.otpco.com/role/RevenueDetails", "shortName": "Revenue (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:DisaggregationOfRevenueTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i85a0b2c2d5034088809484baf6160690_D20210101-20210331", "decimals": "-3", "lang": "en-US", "name": "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R37": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i5458f4d6e23940ca92dd24eb67c70571_I20210331", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:AccountsReceivableGrossCurrent", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2413405 - Disclosure - Select Balance Sheet Information - Schedule of Receivables (Details)", "role": "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofReceivablesDetails", "shortName": "Select Balance Sheet Information - Schedule of Receivables (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i5458f4d6e23940ca92dd24eb67c70571_I20210331", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:AccountsReceivableGrossCurrent", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R38": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "ifaff5a04688f4997a27c915d8eb05db2_I20201231", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:AllowanceForDoubtfulAccountsReceivable", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2414406 - Disclosure - Select Balance Sheet Information - Summary of Activity in Allowance for Credit Losses (Details)", "role": "http://www.otpco.com/role/SelectBalanceSheetInformationSummaryofActivityinAllowanceforCreditLossesDetails", "shortName": "Select Balance Sheet Information - Summary of Activity in Allowance for Credit Losses (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:AccountsReceivableAllowanceForCreditLossTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": "-3", "lang": "en-US", "name": "us-gaap:AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R39": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfInventoryCurrentTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i5458f4d6e23940ca92dd24eb67c70571_I20210331", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:InventoryFinishedGoodsNetOfReserves", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2415407 - Disclosure - Select Balance Sheet Information - Schedule of Inventories (Details)", "role": "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofInventoriesDetails", "shortName": "Select Balance Sheet Information - Schedule of Inventories (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfInventoryCurrentTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i5458f4d6e23940ca92dd24eb67c70571_I20210331", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:InventoryFinishedGoodsNetOfReserves", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R4": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:DisaggregationOfRevenueTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:Revenues", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1003004 - Statement - Consolidated Statements of Income", "role": "http://www.otpco.com/role/ConsolidatedStatementsofIncome", "shortName": "Consolidated Statements of Income", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": "-3", "lang": "en-US", "name": "us-gaap:UtilitiesOperatingExpenseFuelUsed", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R40": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:InvestmentTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i5458f4d6e23940ca92dd24eb67c70571_I20210331", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:LifeInsuranceCorporateOrBankOwnedAmount", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2416408 - Disclosure - Select Balance Sheet Information - Schedule of Investments (Details)", "role": "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofInvestmentsDetails", "shortName": "Select Balance Sheet Information - Schedule of Investments (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:InvestmentTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i5458f4d6e23940ca92dd24eb67c70571_I20210331", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:LifeInsuranceCorporateOrBankOwnedAmount", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R41": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:PropertyPlantAndEquipmentTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i5458f4d6e23940ca92dd24eb67c70571_I20210331", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:PropertyPlantAndEquipmentNet", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2417409 - Disclosure - Select Balance Sheet Information - Schedule of Property, Plant and Equipment (Details)", "role": "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofPropertyPlantandEquipmentDetails", "shortName": "Select Balance Sheet Information - Schedule of Property, Plant and Equipment (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:PropertyPlantAndEquipmentTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i93b8b27d1eb148c7861a899d9576ab17_I20210331", "decimals": "-3", "lang": "en-US", "name": "us-gaap:PropertyPlantAndEquipmentGross", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R42": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "ottr:ScheduleOfRegulatoryAssetsAndLiabilitiesTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i5458f4d6e23940ca92dd24eb67c70571_I20210331", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:RegulatoryAssetsCurrent", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2420410 - Disclosure - Regulatory Matters - Regulatory Assets and Liabilities (Details)", "role": "http://www.otpco.com/role/RegulatoryMattersRegulatoryAssetsandLiabilitiesDetails", "shortName": "Regulatory Matters - Regulatory Assets and Liabilities (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "ottr:ScheduleOfRegulatoryAssetsAndLiabilitiesTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i19ab0b4199c74009b1f0f0737b91f5a4_I20210331", "decimals": "-3", "lang": "en-US", "name": "us-gaap:RegulatoryLiabilityCurrent", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R43": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfLineOfCreditFacilitiesTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i5458f4d6e23940ca92dd24eb67c70571_I20210331", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2423411 - Disclosure - Short-Term and Long-Term Borrowings - Lines of Credit (Details)", "role": "http://www.otpco.com/role/ShortTermandLongTermBorrowingsLinesofCreditDetails", "shortName": "Short-Term and Long-Term Borrowings - Lines of Credit (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfLineOfCreditFacilitiesTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i5458f4d6e23940ca92dd24eb67c70571_I20210331", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R44": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfDebtTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i5458f4d6e23940ca92dd24eb67c70571_I20210331", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:LongTermDebt", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2424412 - Disclosure - Short-Term and Long-Term Borrowings - Breakdown of Outstanding Long-term Debt (Details)", "role": "http://www.otpco.com/role/ShortTermandLongTermBorrowingsBreakdownofOutstandingLongtermDebtDetails", "shortName": "Short-Term and Long-Term Borrowings - Breakdown of Outstanding Long-term Debt (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfDebtTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i5458f4d6e23940ca92dd24eb67c70571_I20210331", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:LongTermDebt", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R45": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i6ecfb12dd5e042bc9370a02208f0fcfe_I20210331", "decimals": "INF", "first": true, "lang": "en-US", "name": "ottr:DebtToTotalCapitalizationRatio", "reportCount": 1, "unique": true, "unitRef": "number", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2425413 - Disclosure - Short-Term and Long-Term Borrowings - Narrative (Details)", "role": "http://www.otpco.com/role/ShortTermandLongTermBorrowingsNarrativeDetails", "shortName": "Short-Term and Long-Term Borrowings - Narrative (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i6ecfb12dd5e042bc9370a02208f0fcfe_I20210331", "decimals": "INF", "first": true, "lang": "en-US", "name": "ottr:DebtToTotalCapitalizationRatio", "reportCount": 1, "unique": true, "unitRef": "number", "xsiNil": "false" } }, "R46": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfNetBenefitCostsTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "if795254b622743618b005519d6fe0eed_D20210101-20210331", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:DefinedBenefitPlanServiceCost", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2428414 - Disclosure - Pension Plan and Other Postretirement Benefits - Components of Net Periodic Benefit Cost (Details)", "role": "http://www.otpco.com/role/PensionPlanandOtherPostretirementBenefitsComponentsofNetPeriodicBenefitCostDetails", "shortName": "Pension Plan and Other Postretirement Benefits - Components of Net Periodic Benefit Cost (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:ScheduleOfNetBenefitCostsTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "if795254b622743618b005519d6fe0eed_D20210101-20210331", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:DefinedBenefitPlanServiceCost", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R47": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i5eaa61a1a36b40fa928874c3234f1b59_D20210101-20210131", "decimals": "-5", "first": true, "lang": "en-US", "name": "us-gaap:DefinedBenefitPlanContributionsByEmployer", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2429415 - Disclosure - Pension Plan and Other Postretirement Benefits - Narrative (Details)", "role": "http://www.otpco.com/role/PensionPlanandOtherPostretirementBenefitsNarrativeDetails", "shortName": "Pension Plan and Other Postretirement Benefits - Narrative (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i5eaa61a1a36b40fa928874c3234f1b59_D20210101-20210131", "decimals": "-5", "first": true, "lang": "en-US", "name": "us-gaap:DefinedBenefitPlanContributionsByEmployer", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R48": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "us-gaap:ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock", "div", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate", "reportCount": 1, "unique": true, "unitRef": "number", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2432416 - Disclosure - Income Taxes - Effective Income Tax Rate (Details)", "role": "http://www.otpco.com/role/IncomeTaxesEffectiveIncomeTaxRateDetails", "shortName": "Income Taxes - Effective Income Tax Rate (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "us-gaap:ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock", "div", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate", "reportCount": 1, "unique": true, "unitRef": "number", "xsiNil": "false" } }, "R49": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i909b346225e247199e0e9bdd1f5efbdc_I20210331", "decimals": "-5", "first": true, "lang": "en-US", "name": "ottr:Ottr_EstimatedLiabilityForFERCOrderedMISOTariffRefundObligation", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2434417 - Disclosure - Commitments and Contingencies (Details)", "role": "http://www.otpco.com/role/CommitmentsandContingenciesDetails", "shortName": "Commitments and Contingencies (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i909b346225e247199e0e9bdd1f5efbdc_I20210331", "decimals": "-5", "first": true, "lang": "en-US", "name": "ottr:Ottr_EstimatedLiabilityForFERCOrderedMISOTariffRefundObligation", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R5": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:NetIncomeLoss", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1004005 - Statement - Consolidated Statements of Comprehensive Income", "role": "http://www.otpco.com/role/ConsolidatedStatementsofComprehensiveIncome", "shortName": "Consolidated Statements of Comprehensive Income", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": "-3", "lang": "en-US", "name": "us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R50": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i5458f4d6e23940ca92dd24eb67c70571_I20210331", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:CapitalizationLongtermDebtAndEquity", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2436418 - Disclosure - Stockholders' Equity (Details)", "role": "http://www.otpco.com/role/StockholdersEquityDetails", "shortName": "Stockholders' Equity (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "ix:continuation", "span", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i64d25bede44040d68b760a8240bb3271_D20210101-20210331", "decimals": "3", "lang": "en-US", "name": "ottr:EquityToTotalCapitalizationRatio", "reportCount": 1, "unique": true, "unitRef": "number", "xsiNil": "false" } }, "R51": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": "-5", "first": true, "lang": "en-US", "name": "us-gaap:AllocatedShareBasedCompensationExpense", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2439419 - Disclosure - Share-Based Payments - Narrative (Details)", "role": "http://www.otpco.com/role/ShareBasedPaymentsNarrativeDetails", "shortName": "Share-Based Payments - Narrative (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": "-5", "first": true, "lang": "en-US", "name": "us-gaap:AllocatedShareBasedCompensationExpense", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R52": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "us-gaap:DisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock", "div", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i351a6d3b0c0f42888872781fe42498a5_I20201231", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber", "reportCount": 1, "unique": true, "unitRef": "shares", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2440420 - Disclosure - Share-Based Payments - Summary of Restricted Stock Awards and Stock Performance Awards (Details)", "role": "http://www.otpco.com/role/ShareBasedPaymentsSummaryofRestrictedStockAwardsandStockPerformanceAwardsDetails", "shortName": "Share-Based Payments - Summary of Restricted Stock Awards and Stock Performance Awards (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "us-gaap:DisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock", "div", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i351a6d3b0c0f42888872781fe42498a5_I20201231", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber", "reportCount": 1, "unique": true, "unitRef": "shares", "xsiNil": "false" } }, "R53": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "ottr:ScheduleOfShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsValuationAssumptionsTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i0ab2465096c74a779daef1aca23f0dac_D20210101-20210331", "decimals": "4", "first": true, "lang": "en-US", "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate", "reportCount": 1, "unique": true, "unitRef": "number", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2441421 - Disclosure - Share-Based Payments - Weighted-Average Assumptions (Details)", "role": "http://www.otpco.com/role/ShareBasedPaymentsWeightedAverageAssumptionsDetails", "shortName": "Share-Based Payments - Weighted-Average Assumptions (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "ottr:ScheduleOfShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsValuationAssumptionsTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i0ab2465096c74a779daef1aca23f0dac_D20210101-20210331", "decimals": "4", "first": true, "lang": "en-US", "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate", "reportCount": 1, "unique": true, "unitRef": "number", "xsiNil": "false" } }, "R54": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:WeightedAverageNumberOfSharesOutstandingBasic", "reportCount": 1, "unitRef": "shares", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2444422 - Disclosure - Earnings Per Share (Details)", "role": "http://www.otpco.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": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": "-3", "lang": "en-US", "name": "us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment", "reportCount": 1, "unique": true, "unitRef": "shares", "xsiNil": "false" } }, "R55": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "us-gaap:InvestmentTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i5458f4d6e23940ca92dd24eb67c70571_I20210331", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:EquitySecuritiesFvNi", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2447423 - Disclosure - Fair Value Measurements - Schedule of Fair Value Measurements, Recurring and Nonrecurring (Details)", "role": "http://www.otpco.com/role/FairValueMeasurementsScheduleofFairValueMeasurementsRecurringandNonrecurringDetails", "shortName": "Fair Value Measurements - Schedule of Fair Value Measurements, Recurring and Nonrecurring (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock", "div", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i44f6ee084e304f729668c7da0bb0e632_I20210331", "decimals": "-3", "lang": "en-US", "name": "us-gaap:CashAndCashEquivalentsFairValueDisclosure", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R56": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "ix:continuation", "div", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "id4f7bbf1057f4c809c8eaebae195f88d_I20210331", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:CashAndCashEquivalentsFairValueDisclosure", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2448424 - Disclosure - Fair Value Measurements - Schedule of Fair Value of Assets and Liabilities (Details)", "role": "http://www.otpco.com/role/FairValueMeasurementsScheduleofFairValueofAssetsandLiabilitiesDetails", "shortName": "Fair Value Measurements - Schedule of Fair Value of Assets and Liabilities (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "ix:continuation", "div", "ix:continuation", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "id4f7bbf1057f4c809c8eaebae195f88d_I20210331", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:CashAndCashEquivalentsFairValueDisclosure", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R6": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i900353a404f042c9883241e203d1280c_I20191231", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:SharesOutstanding", "reportCount": 1, "unique": true, "unitRef": "shares", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1005006 - Statement - Consolidated Statements of Shareholders' Equity", "role": "http://www.otpco.com/role/ConsolidatedStatementsofShareholdersEquity", "shortName": "Consolidated Statements of Shareholders' Equity", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i900353a404f042c9883241e203d1280c_I20191231", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:SharesOutstanding", "reportCount": 1, "unique": true, "unitRef": "shares", "xsiNil": "false" } }, "R7": { "firstAnchor": { "ancestors": [ "span", "div", "td", "tr", "table", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:CommonStockDividendsPerShareDeclared", "reportCount": 1, "unique": true, "unitRef": "usdPerShare", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1006007 - Statement - Consolidated Statements of Shareholders' Equity (Parentheticals)", "role": "http://www.otpco.com/role/ConsolidatedStatementsofShareholdersEquityParentheticals", "shortName": "Consolidated Statements of Shareholders' Equity (Parentheticals)", "subGroupType": "parenthetical", "uniqueAnchor": { "ancestors": [ "span", "div", "td", "tr", "table", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": "INF", "first": true, "lang": "en-US", "name": "us-gaap:CommonStockDividendsPerShareDeclared", "reportCount": 1, "unique": true, "unitRef": "usdPerShare", "xsiNil": "false" } }, "R8": { "firstAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": "-3", "first": true, "lang": "en-US", "name": "us-gaap:NetIncomeLoss", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1007008 - Statement - Consolidated Statements of Cash Flows", "role": "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows", "shortName": "Consolidated Statements of Cash Flows", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "td", "tr", "table", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": "-3", "lang": "en-US", "name": "us-gaap:IncomeTaxCreditsAndAdjustments", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R9": { "firstAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SignificantAccountingPoliciesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2101101 - Disclosure - Summary of Significant Accounting Policies", "role": "http://www.otpco.com/role/SummaryofSignificantAccountingPolicies", "shortName": "Summary of Significant Accounting Policies", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "body", "html" ], "baseRef": "ottr-20210331.htm", "contextRef": "i3a76d1213b09470fa8c6c3f49fa75d98_D20210101-20210331", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SignificantAccountingPoliciesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } } }, "segmentCount": 80, "tag": { "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://www.otpco.com/role/Cover" ], "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://www.otpco.com/role/Cover" ], "xbrltype": "normalizedStringItemType" }, "dei_CoverAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Cover page.", "label": "Cover [Abstract]", "terseLabel": "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://www.otpco.com/role/Cover" ], "xbrltype": "gMonthDayItemType" }, "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://www.otpco.com/role/Cover" ], "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://www.otpco.com/role/Cover" ], "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://www.otpco.com/role/Cover" ], "xbrltype": "dateItemType" }, "dei_DocumentQuarterlyReport": { "auth_ref": [ "r529" ], "lang": { "en-us": { "role": { "documentation": "Boolean flag that is true only for a form used as an quarterly report.", "label": "Document Quarterly Report", "terseLabel": "Document Quarterly Report" } } }, "localname": "DocumentQuarterlyReport", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "presentation": [ "http://www.otpco.com/role/Cover" ], "xbrltype": "booleanItemType" }, "dei_DocumentTransitionReport": { "auth_ref": [ "r530" ], "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://www.otpco.com/role/Cover" ], "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://www.otpco.com/role/Cover" ], "xbrltype": "submissionTypeItemType" }, "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://www.otpco.com/role/Cover" ], "xbrltype": "normalizedStringItemType" }, "dei_EntityAddressAddressLine2": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Address Line 2 such as Street or Suite number", "label": "Entity Address, Address Line Two", "terseLabel": "Entity Address, Address Line Two" } } }, "localname": "EntityAddressAddressLine2", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "presentation": [ "http://www.otpco.com/role/Cover" ], "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://www.otpco.com/role/Cover" ], "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://www.otpco.com/role/Cover" ], "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://www.otpco.com/role/Cover" ], "xbrltype": "stateOrProvinceItemType" }, "dei_EntityCentralIndexKey": { "auth_ref": [ "r531" ], "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://www.otpco.com/role/Cover" ], "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://www.otpco.com/role/Cover" ], "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://www.otpco.com/role/Cover" ], "xbrltype": "yesNoItemType" }, "dei_EntityDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "All the names of the entities being reported upon in a document. Any legal structure used to conduct activities or to hold assets. Some examples of such structures are corporations, partnerships, limited liability companies, grantor trusts, and other trusts. This item does not include business and geographical segments which are included in the geographical or business segments domains.", "label": "Entity [Domain]", "terseLabel": "Entity [Domain]" } } }, "localname": "EntityDomain", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "presentation": [ "http://www.otpco.com/role/CommitmentsandContingenciesDetails", "http://www.otpco.com/role/StockholdersEquityDetails" ], "xbrltype": "domainItemType" }, "dei_EntityEmergingGrowthCompany": { "auth_ref": [ "r531" ], "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://www.otpco.com/role/Cover" ], "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://www.otpco.com/role/Cover" ], "xbrltype": "fileNumberItemType" }, "dei_EntityFilerCategory": { "auth_ref": [ "r531" ], "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://www.otpco.com/role/Cover" ], "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://www.otpco.com/role/Cover" ], "xbrltype": "edgarStateCountryItemType" }, "dei_EntityInteractiveDataCurrent": { "auth_ref": [ "r532" ], "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://www.otpco.com/role/Cover" ], "xbrltype": "yesNoItemType" }, "dei_EntityRegistrantName": { "auth_ref": [ "r531" ], "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://www.otpco.com/role/Cover" ], "xbrltype": "normalizedStringItemType" }, "dei_EntityShellCompany": { "auth_ref": [ "r531" ], "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://www.otpco.com/role/Cover" ], "xbrltype": "booleanItemType" }, "dei_EntitySmallBusiness": { "auth_ref": [ "r531" ], "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://www.otpco.com/role/Cover" ], "xbrltype": "booleanItemType" }, "dei_EntityTaxIdentificationNumber": { "auth_ref": [ "r531" ], "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://www.otpco.com/role/Cover" ], "xbrltype": "employerIdItemType" }, "dei_LegalEntityAxis": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The set of legal entities associated with a report.", "label": "Legal Entity [Axis]", "terseLabel": "Legal Entity [Axis]" } } }, "localname": "LegalEntityAxis", "nsuri": "http://xbrl.sec.gov/dei/2020-01-31", "presentation": [ "http://www.otpco.com/role/CommitmentsandContingenciesDetails", "http://www.otpco.com/role/StockholdersEquityDetails" ], "xbrltype": "stringItemType" }, "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://www.otpco.com/role/Cover" ], "xbrltype": "normalizedStringItemType" }, "dei_Security12bTitle": { "auth_ref": [ "r527" ], "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://www.otpco.com/role/Cover" ], "xbrltype": "securityTitleItemType" }, "dei_SecurityExchangeName": { "auth_ref": [ "r528" ], "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://www.otpco.com/role/Cover" ], "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://www.otpco.com/role/Cover" ], "xbrltype": "tradingSymbolItemType" }, "ottr_AccountsPayableOutstandingRelatedToCapitalAdditions": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Represents the accounts payable outstanding related to capital additions as part of noncash Investing Activities", "label": "Transactions Related to Capital Additions not Settled in Cash", "terseLabel": "Transactions Related to Capital Additions Not Settled in Cash" } } }, "localname": "AccountsPayableOutstandingRelatedToCapitalAdditions", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "ottr_AccountsReceivableAllowanceForCreditLossWriteoffAfterRecovery": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Accounts Receivable, Allowance for Credit Loss, Writeoff, after Recovery", "label": "Accounts Receivable, Allowance for Credit Loss, Writeoff, after Recovery", "negatedTerseLabel": "Reductions for Amounts Written-Off, Net of Recoveries" } } }, "localname": "AccountsReceivableAllowanceForCreditLossWriteoffAfterRecovery", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/SelectBalanceSheetInformationSummaryofActivityinAllowanceforCreditLossesDetails" ], "xbrltype": "monetaryItemType" }, "ottr_AlternativeRevenueProgramRidersMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Alternative Revenue Program Riders", "label": "Alternative Revenue Program Riders [Member]", "terseLabel": "Alternative Revenue Program Riders", "verboseLabel": "Alternative Revenue Program Riders" } } }, "localname": "AlternativeRevenueProgramRidersMember", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/RegulatoryMattersRegulatoryAssetsandLiabilitiesDetails" ], "xbrltype": "domainItemType" }, "ottr_AssetRetirementObligationsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Asset Retirement Obligations", "label": "Asset Retirement Obligations [Member]", "terseLabel": "Asset Retirement Obligations" } } }, "localname": "AssetRetirementObligationsMember", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/RegulatoryMattersRegulatoryAssetsandLiabilitiesDetails" ], "xbrltype": "domainItemType" }, "ottr_ChangeInChecksWrittenInExcessOfCash": { "auth_ref": [], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows": { "order": 3.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Represents change in checks written in excess of cash.", "label": "ottr_ChangeInChecksWrittenInExcessOfCash", "negatedLabel": "Change in Checks Written in Excess of Cash" } } }, "localname": "ChangeInChecksWrittenInExcessOfCash", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "ottr_DebtReacquisitionPremiumsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents information about debt reacquisition premiums.", "label": "Debt Reacquisition Premiums [Member]", "terseLabel": "Debt Reacquisition Premiums" } } }, "localname": "DebtReacquisitionPremiumsMember", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/RegulatoryMattersRegulatoryAssetsandLiabilitiesDetails" ], "xbrltype": "domainItemType" }, "ottr_DebtToTotalCapitalizationRatio": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents the required ratio of debt to total capitalization.", "label": "ottr_DebtToTotalCapitalizationRatio", "terseLabel": "Debt to total capitalization ratio" } } }, "localname": "DebtToTotalCapitalizationRatio", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/ShortTermandLongTermBorrowingsNarrativeDetails" ], "xbrltype": "percentItemType" }, "ottr_DeferredIncomeTaxesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents information about deferred income taxes.", "label": "Deferred Income Taxes [Member]", "terseLabel": "Deferred Income Taxes" } } }, "localname": "DeferredIncomeTaxesMember", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/RegulatoryMattersRegulatoryAssetsandLiabilitiesDetails" ], "xbrltype": "domainItemType" }, "ottr_DeferredRateCaseExpensesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Deferred Rate Case Expenses", "label": "Deferred Rate Case Expenses [Member]", "terseLabel": "Deferred Rate Case Expenses", "verboseLabel": "Deferred Rate Case Expenses" } } }, "localname": "DeferredRateCaseExpensesMember", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/RegulatoryMattersRegulatoryAssetsandLiabilitiesDetails" ], "xbrltype": "domainItemType" }, "ottr_DefinedBenefitPlanAmortizationOfGainsLossesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Defined Benefit Plan Amortization of Gains Losses [Abstract]", "label": "Amortization of Net Actuarial Loss", "terseLabel": "Amortization of Net Actuarial Loss:" } } }, "localname": "DefinedBenefitPlanAmortizationOfGainsLossesAbstract", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/PensionPlanandOtherPostretirementBenefitsComponentsofNetPeriodicBenefitCostDetails" ], "xbrltype": "stringItemType" }, "ottr_DefinedBenefitPlanAmortizationOfGainsLossesFromOtherComprehensiveIncome": { "auth_ref": [], "calculation": { "http://www.otpco.com/role/PensionPlanandOtherPostretirementBenefitsComponentsofNetPeriodicBenefitCostDetails": { "order": 2.0, "parentTag": "us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount of gains or losses recognized in net periodic benefit cost from other comprehensive income.", "label": "From Other Comprehensive Income", "negatedLabel": "From Other Comprehensive Income" } } }, "localname": "DefinedBenefitPlanAmortizationOfGainsLossesFromOtherComprehensiveIncome", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/PensionPlanandOtherPostretirementBenefitsComponentsofNetPeriodicBenefitCostDetails" ], "xbrltype": "monetaryItemType" }, "ottr_DefinedBenefitPlanAmortizationOfGainsLossesFromRegulatoryAssets": { "auth_ref": [], "calculation": { "http://www.otpco.com/role/PensionPlanandOtherPostretirementBenefitsComponentsofNetPeriodicBenefitCostDetails": { "order": 4.0, "parentTag": "us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount of gains or losses recognized in net periodic benefit cost from regulatory assets.", "label": "ottr_DefinedBenefitPlanAmortizationOfGainsLossesFromRegulatoryAssets", "negatedLabel": "From Regulatory Asset" } } }, "localname": "DefinedBenefitPlanAmortizationOfGainsLossesFromRegulatoryAssets", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/PensionPlanandOtherPostretirementBenefitsComponentsofNetPeriodicBenefitCostDetails" ], "xbrltype": "monetaryItemType" }, "ottr_DefinedBenefitPlanAmortizationOfPriorServiceCostCreditAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Defined Benefit Plan Amortization of Prior Service Cost Credit [Abstract]", "label": "Amortization of Prior Service Cost", "terseLabel": "Amortization of Prior Service Cost:" } } }, "localname": "DefinedBenefitPlanAmortizationOfPriorServiceCostCreditAbstract", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/PensionPlanandOtherPostretirementBenefitsComponentsofNetPeriodicBenefitCostDetails" ], "xbrltype": "stringItemType" }, "ottr_DefinedBenefitPlanAmortizationOfPriorServiceCostFromOtherComprehensiveIncomeCredit": { "auth_ref": [], "calculation": { "http://www.otpco.com/role/PensionPlanandOtherPostretirementBenefitsComponentsofNetPeriodicBenefitCostDetails": { "order": 7.0, "parentTag": "us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of the prior service cost or credit recognized in net periodic benefit cost relating to benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation from other comprehensive income.", "label": "ottr_DefinedBenefitPlanAmortizationOfPriorServiceCostFromOtherComprehensiveIncomeCredit", "verboseLabel": "From Other Comprehensive Income" } } }, "localname": "DefinedBenefitPlanAmortizationOfPriorServiceCostFromOtherComprehensiveIncomeCredit", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/PensionPlanandOtherPostretirementBenefitsComponentsofNetPeriodicBenefitCostDetails" ], "xbrltype": "monetaryItemType" }, "ottr_DefinedBenefitPlanAmortizationOfPriorServiceCostFromRegulatoryAssetsCredit": { "auth_ref": [], "calculation": { "http://www.otpco.com/role/PensionPlanandOtherPostretirementBenefitsComponentsofNetPeriodicBenefitCostDetails": { "order": 5.0, "parentTag": "us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of the prior service cost or credit recognized in net periodic benefit cost relating to benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation from regulatory assets.", "label": "From Regulatory Asset", "terseLabel": "From Regulatory Asset" } } }, "localname": "DefinedBenefitPlanAmortizationOfPriorServiceCostFromRegulatoryAssetsCredit", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/PensionPlanandOtherPostretirementBenefitsComponentsofNetPeriodicBenefitCostDetails" ], "xbrltype": "monetaryItemType" }, "ottr_EffectiveIncomeTaxRateReconciliationAllowanceForEquityFundsUsedDuringConstructionPercent": { "auth_ref": [], "calculation": { "http://www.otpco.com/role/IncomeTaxesEffectiveIncomeTaxRateDetails": { "order": 8.0, "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations", "weight": 1.0 } }, "lang": { "en-us": { "role": { "documentation": "Effective Income Tax Rate Reconciliation, Allowance for Equity, Funds Used During Construction, Percent", "label": "Effective Income Tax Rate Reconciliation, Allowance for Equity, Funds Used During Construction, Percent", "terseLabel": "Allowance for Equity Funds Used During Construction" } } }, "localname": "EffectiveIncomeTaxRateReconciliationAllowanceForEquityFundsUsedDuringConstructionPercent", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/IncomeTaxesEffectiveIncomeTaxRateDetails" ], "xbrltype": "percentItemType" }, "ottr_EffectiveIncomeTaxRateReconciliationAmortizationOfExcessDeferredTaxes": { "auth_ref": [], "calculation": { "http://www.otpco.com/role/IncomeTaxesEffectiveIncomeTaxRateDetails": { "order": 3.0, "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations", "weight": 1.0 } }, "lang": { "en-us": { "role": { "documentation": "Effective Income Tax Rate Reconciliation, Amortization of Excess Deferred Taxes", "label": "Effective Income Tax Rate Reconciliation, Amortization of Excess Deferred Taxes", "terseLabel": "Amortization of Excess Deferred Income Taxes" } } }, "localname": "EffectiveIncomeTaxRateReconciliationAmortizationOfExcessDeferredTaxes", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/IncomeTaxesEffectiveIncomeTaxRateDetails" ], "xbrltype": "percentItemType" }, "ottr_EffectiveIncomeTaxRateReconciliationCorporateOwnedLifeInsurancePercent": { "auth_ref": [], "calculation": { "http://www.otpco.com/role/IncomeTaxesEffectiveIncomeTaxRateDetails": { "order": 5.0, "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations", "weight": 1.0 } }, "lang": { "en-us": { "role": { "documentation": "Effective Income Tax Rate Reconciliation, Corporate-Owned Life Insurance, Percent", "label": "Effective Income Tax Rate Reconciliation, Corporate-Owned Life Insurance, Percent", "terseLabel": "Corporate-Owned Life Insurance" } } }, "localname": "EffectiveIncomeTaxRateReconciliationCorporateOwnedLifeInsurancePercent", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/IncomeTaxesEffectiveIncomeTaxRateDetails" ], "xbrltype": "percentItemType" }, "ottr_EffectiveIncomeTaxRateReconciliationTaxCreditProductionPercent": { "auth_ref": [], "calculation": { "http://www.otpco.com/role/IncomeTaxesEffectiveIncomeTaxRateDetails": { "order": 7.0, "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations", "weight": -1.0 } }, "lang": { "en-us": { "role": { "documentation": "Effective Income Tax Rate Reconciliation, Tax Credit, Production, Percent", "label": "Effective Income Tax Rate Reconciliation, Tax Credit, Production, Percent", "negatedTerseLabel": "Production Tax Credits (PTCs)" } } }, "localname": "EffectiveIncomeTaxRateReconciliationTaxCreditProductionPercent", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/IncomeTaxesEffectiveIncomeTaxRateDetails" ], "xbrltype": "percentItemType" }, "ottr_ElectricMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents information about Electric segment.", "label": "Electric [Member]", "terseLabel": "Electric" } } }, "localname": "ElectricMember", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofIncome", "http://www.otpco.com/role/RevenueDetails", "http://www.otpco.com/role/SegmentInformationBusinessSegmentsDetails" ], "xbrltype": "domainItemType" }, "ottr_ElectricPlantInServiceMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents information pertaining to electric plant in service.", "label": "Electric Plant in Service [Member]", "terseLabel": "Electric Plant in Service" } } }, "localname": "ElectricPlantInServiceMember", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofPropertyPlantandEquipmentDetails" ], "xbrltype": "domainItemType" }, "ottr_ElectricPlantMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents information pertaining to electric utility plant.", "label": "Electric Plant [Member]", "terseLabel": "Electric Plant in Service" } } }, "localname": "ElectricPlantMember", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofPropertyPlantandEquipmentDetails" ], "xbrltype": "domainItemType" }, "ottr_ElectricProductOtherMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Electric Product, Other", "label": "Electric Product, Other [Member]", "terseLabel": "Other" } } }, "localname": "ElectricProductOtherMember", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/RevenueDetails" ], "xbrltype": "domainItemType" }, "ottr_ElectronicProductRetailMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Electronic Product, Retail", "label": "Electronic Product, Retail [Member]", "terseLabel": "Total Retail" } } }, "localname": "ElectronicProductRetailMember", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/RevenueDetails" ], "xbrltype": "domainItemType" }, "ottr_EquityToTotalCapitalizationRatio": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents the ratio of Equity to total capitalization, which includes as equity minority interest and preferred stock as well as all of the components of common equity as presented on the balance sheet. Total capitalization is calculated as equity plus short-term debt plus long-term debt as presented on the balance sheet.", "label": "ottr_EquityToTotalCapitalizationRatio", "terseLabel": "Equity to total capitalization ratio" } } }, "localname": "EquityToTotalCapitalizationRatio", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/StockholdersEquityDetails" ], "xbrltype": "percentItemType" }, "ottr_ExecutiveSurvivorAndSupplementalRetirementPlanMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents information about executive survivor and supplemental retirement plan.", "label": "Executive Survivor and Supplemental Retirement Plan [Member]", "terseLabel": "Executive Survivor and Supplemental Retirement Plan" } } }, "localname": "ExecutiveSurvivorAndSupplementalRetirementPlanMember", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/PensionPlanandOtherPostretirementBenefitsComponentsofNetPeriodicBenefitCostDetails" ], "xbrltype": "domainItemType" }, "ottr_FederalEnergyRegulatoryCommissionMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents Federal Energy Regulatory Commission.", "label": "Federal Energy Regulatory Commission [Member]", "terseLabel": "Federal Energy Regulatory Commission" } } }, "localname": "FederalEnergyRegulatoryCommissionMember", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/CommitmentsandContingenciesDetails" ], "xbrltype": "domainItemType" }, "ottr_FuelClauseAdjustmentMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Fuel Clause Adjustment", "label": "Fuel Clause Adjustment [Member]", "terseLabel": "Fuel Clause Adjustments" } } }, "localname": "FuelClauseAdjustmentMember", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/RegulatoryMattersRegulatoryAssetsandLiabilitiesDetails" ], "xbrltype": "domainItemType" }, "ottr_GovernmentBackedAndGovernmentSponsoredEnterprisesDebtSecuritiesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents information about government-backed and Government-sponsored enterprises' debt securities.", "label": "Government-backed and Government-sponsored Enterprises' Debt Securities [Member]", "terseLabel": "Government-Backed and Government-Sponsored Enterprises\u2019 Debt Securities" } } }, "localname": "GovernmentBackedAndGovernmentSponsoredEnterprisesDebtSecuritiesMember", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/FairValueMeasurementsScheduleofFairValueMeasurementsRecurringandNonrecurringDetails" ], "xbrltype": "domainItemType" }, "ottr_ISOCostRecoveryTrackersMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "ISO Cost Recovery Trackers", "label": "ISO Cost Recovery Trackers [Member]", "terseLabel": "ISO Cost Recovery Trackers", "verboseLabel": "ISO Cost Recovery Trackers" } } }, "localname": "ISOCostRecoveryTrackersMember", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/RegulatoryMattersRegulatoryAssetsandLiabilitiesDetails" ], "xbrltype": "domainItemType" }, "ottr_IncreaseDecreaseInDeferredChargesAndOtherAssets": { "auth_ref": [], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows": { "order": 10.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The net change during the reporting period in the value of expenditures made during the current reporting period for benefits that will be received over a period of years. Deferred charges differ from prepaid expenses in that they usually extend over a long period of time and may or may not be regularly recurring costs of operation. Also includes, the net change during the reporting period in other assets not otherwise defined in the taxonomy.", "label": "Change in Deferred Debits and Other Assets", "terseLabel": "Change in Deferred Debits and Other Assets" } } }, "localname": "IncreaseDecreaseInDeferredChargesAndOtherAssets", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "ottr_IncreaseDecreaseInInterestPayableAndIncomeTaxesReceivablePayableNet": { "auth_ref": [], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows": { "order": 11.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The net change during the reporting period in the aggregate amount of interest payable and income taxes receivable/payable incurred but not paid.", "label": "Change in Interest Payable and Income Taxes Receivable", "terseLabel": "Change in Interest Payable and Income Taxes Receivable/Payable" } } }, "localname": "IncreaseDecreaseInInterestPayableAndIncomeTaxesReceivablePayableNet", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "ottr_IncreaseDecreaseInOtherOperatingLiabilitiesAndIncreaseDecreaseInDeferredLiabilities": { "auth_ref": [], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows": { "order": 9.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The net change during the reporting period in the value of obligations incurred during the current reporting period that will be paid for over a period of years or revenues received that will be earned over a period of years.", "label": "ottr_IncreaseDecreaseInOtherOperatingLiabilitiesAndIncreaseDecreaseInDeferredLiabilities", "negatedLabel": "Change in Noncurrent Liabilities and Deferred Credits" } } }, "localname": "IncreaseDecreaseInOtherOperatingLiabilitiesAndIncreaseDecreaseInDeferredLiabilities", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "ottr_InterestAndDividendCoverageRatio": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents the required interest and dividend coverage ratio.", "label": "ottr_InterestAndDividendCoverageRatio", "terseLabel": "Interest and dividend coverage ratio" } } }, "localname": "InterestAndDividendCoverageRatio", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/ShortTermandLongTermBorrowingsNarrativeDetails" ], "xbrltype": "pureItemType" }, "ottr_ManufacturingMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents information about manufacturing.", "label": "Manufacturing [Member]", "terseLabel": "Manufacturing" } } }, "localname": "ManufacturingMember", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/RevenueDetails", "http://www.otpco.com/role/SegmentInformationBusinessSegmentsDetails" ], "xbrltype": "domainItemType" }, "ottr_MetalPartsAndToolingMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents information pertaining to metal parts and tooling.", "label": "Metal Parts and Tooling [Member]", "terseLabel": "Metal Parts and Tooling" } } }, "localname": "MetalPartsAndToolingMember", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/RevenueDetails" ], "xbrltype": "domainItemType" }, "ottr_MinnesotaPublicUtilitiesCommissionMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents information about Minnesota Public Utilities Commission.", "label": "Minnesota Public Utilities Commission [Member]", "terseLabel": "Minnesota Public Utilities Commission" } } }, "localname": "MinnesotaPublicUtilitiesCommissionMember", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/StockholdersEquityDetails" ], "xbrltype": "domainItemType" }, "ottr_NetAssetsRestrictedFromDistribution": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Represents net assets restricted from distribution.", "label": "ottr_NetAssetsRestrictedFromDistribution", "terseLabel": "Net assets restricted from distribution" } } }, "localname": "NetAssetsRestrictedFromDistribution", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/StockholdersEquityDetails" ], "xbrltype": "monetaryItemType" }, "ottr_NonelectricOperationsPlantMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents information pertaining to nonelectric operations plant.", "label": "Nonelectric Operations Plant [Member]", "terseLabel": "Nonelectric Property, Plant and Equipment in Service" } } }, "localname": "NonelectricOperationsPlantMember", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofPropertyPlantandEquipmentDetails" ], "xbrltype": "domainItemType" }, "ottr_NonelectricPlantMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents information pertaining to properties other than electric plants.", "label": "Nonelectric Plant [Member]", "terseLabel": "Nonelectric Property, Plant and Equipment" } } }, "localname": "NonelectricPlantMember", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofPropertyPlantandEquipmentDetails" ], "xbrltype": "domainItemType" }, "ottr_OTPCreditAgreementMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents information about OTP credit agreement.", "label": "OTP Credit Agreement [Member]", "terseLabel": "OTP Credit Agreement" } } }, "localname": "OTPCreditAgreementMember", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/ShortTermandLongTermBorrowingsLinesofCreditDetails" ], "xbrltype": "domainItemType" }, "ottr_OtherRegulatoryAssetsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Other Regulatory Assets", "label": "Other Regulatory Assets [Member]", "terseLabel": "Other" } } }, "localname": "OtherRegulatoryAssetsMember", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/RegulatoryMattersRegulatoryAssetsandLiabilitiesDetails" ], "xbrltype": "domainItemType" }, "ottr_OtherRegulatoryLiabilitiesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Other Regulatory Liabilities", "label": "Other Regulatory Liabilities [Member]", "terseLabel": "Other" } } }, "localname": "OtherRegulatoryLiabilitiesMember", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/RegulatoryMattersRegulatoryAssetsandLiabilitiesDetails" ], "xbrltype": "domainItemType" }, "ottr_OtterTailCorporationCreditAgreementMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents information about the Otter Tail Corporation Credit Agreement.", "label": "Otter Tail Corporation Credit Agreement [Member]", "terseLabel": "OTC Credit Agreement" } } }, "localname": "OtterTailCorporationCreditAgreementMember", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/ShortTermandLongTermBorrowingsLinesofCreditDetails" ], "xbrltype": "domainItemType" }, "ottr_OtterTailPowerCompanyMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents information about Otter Tail Power Company.", "label": "Otter Tail Power Company [Member]", "terseLabel": "Otter Tail Power Company" } } }, "localname": "OtterTailPowerCompanyMember", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/CommitmentsandContingenciesDetails", "http://www.otpco.com/role/StockholdersEquityDetails" ], "xbrltype": "domainItemType" }, "ottr_Ottr_EstimatedLiabilityForFERCOrderedMISOTariffRefundObligation": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "This element represents amount of estimated liability for FERC ordered MISO tariff ROE refund obligation.", "label": "ottr_EstimatedLiabilityForFERCOrderedMISOTariffRefundObligation", "terseLabel": "Estimated liability of refund obligation" } } }, "localname": "Ottr_EstimatedLiabilityForFERCOrderedMISOTariffRefundObligation", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/CommitmentsandContingenciesDetails" ], "xbrltype": "monetaryItemType" }, "ottr_PartnershipInAssistingCommunityExpansionPaceNote254DueMarch182021Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents information about partnership in assisting community expansion (PACE) note, 2.54%, due March 18, 2021.", "label": "Partnership in Assisting Community Expansion (PACE) Note, 2.54%, due March 18, 2021 [Member]", "terseLabel": "PACE Note" } } }, "localname": "PartnershipInAssistingCommunityExpansionPaceNote254DueMarch182021Member", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/ShortTermandLongTermBorrowingsBreakdownofOutstandingLongtermDebtDetails" ], "xbrltype": "domainItemType" }, "ottr_PensionAndOtherPostretirementBenefitPlansMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Pension and Other Postretirement Benefit Plans", "label": "Pension and Other Postretirement Benefit Plans [Member]", "terseLabel": "Pension and Other Postretirement Benefit Plans", "verboseLabel": "Pension and Other Postretirement Benefit Plans" } } }, "localname": "PensionAndOtherPostretirementBenefitPlansMember", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/RegulatoryMattersRegulatoryAssetsandLiabilitiesDetails" ], "xbrltype": "domainItemType" }, "ottr_PercentageOfTargetAmountAsActualPayment": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents the percentage of target amount as a actual payment.", "label": "ottr_PercentageOfTargetAmountAsActualPayment", "terseLabel": "Percentage of target amount as actual payment" } } }, "localname": "PercentageOfTargetAmountAsActualPayment", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/ShareBasedPaymentsNarrativeDetails" ], "xbrltype": "percentItemType" }, "ottr_PlantRemovalObligationsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Plant Removal Obligations", "label": "Plant Removal Obligations [Member]", "terseLabel": "Plant Removal Obligations" } } }, "localname": "PlantRemovalObligationsMember", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/RegulatoryMattersRegulatoryAssetsandLiabilitiesDetails" ], "xbrltype": "domainItemType" }, "ottr_PlasticProductsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents information pertaining to plastic products.", "label": "Plastic Products [Member]", "terseLabel": "Plastic Products and Tooling" } } }, "localname": "PlasticProductsMember", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/RevenueDetails" ], "xbrltype": "domainItemType" }, "ottr_PlasticsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents information about plastics or the Plastics segment.", "label": "Plastics [Member]", "terseLabel": "Plastics" } } }, "localname": "PlasticsMember", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/RevenueDetails", "http://www.otpco.com/role/SegmentInformationBusinessSegmentsDetails" ], "xbrltype": "domainItemType" }, "ottr_ProductSalesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Product Sales", "label": "Product Sales [Member]", "terseLabel": "Product Sales" } } }, "localname": "ProductSalesMember", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "domainItemType" }, "ottr_RetailCommercialAndIndustrialMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Retail, Commercial and Industrial", "label": "Retail, Commercial and Industrial [Member]", "terseLabel": "Retail: Commercial and Industrial" } } }, "localname": "RetailCommercialAndIndustrialMember", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/RevenueDetails" ], "xbrltype": "domainItemType" }, "ottr_RetailOtherMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Retail, Other", "label": "Retail, Other [Member]", "terseLabel": "Retail: Other" } } }, "localname": "RetailOtherMember", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/RevenueDetails" ], "xbrltype": "domainItemType" }, "ottr_RetailResidentialMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Retail, Residential", "label": "Retail, Residential [Member]", "terseLabel": "Retail: Residential" } } }, "localname": "RetailResidentialMember", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/RevenueDetails" ], "xbrltype": "domainItemType" }, "ottr_ScheduleOfRegulatoryAssetsAndLiabilitiesLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Schedule of Regulatory Assets and Liabilities", "label": "Schedule of Regulatory Assets and Liabilities [Line Items]", "terseLabel": "Schedule of Regulatory Assets and Liabilities [Line Items]" } } }, "localname": "ScheduleOfRegulatoryAssetsAndLiabilitiesLineItems", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/RegulatoryMattersRegulatoryAssetsandLiabilitiesDetails" ], "xbrltype": "stringItemType" }, "ottr_ScheduleOfRegulatoryAssetsAndLiabilitiesTable": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Schedule of Regulatory Assets and Liabilities [Table]", "label": "Schedule of Regulatory Assets and Liabilities [Table]", "terseLabel": "Schedule of Regulatory Assets and Liabilities [Table]" } } }, "localname": "ScheduleOfRegulatoryAssetsAndLiabilitiesTable", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/RegulatoryMattersRegulatoryAssetsandLiabilitiesDetails" ], "xbrltype": "stringItemType" }, "ottr_ScheduleOfRegulatoryAssetsAndLiabilitiesTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Schedule of Regulatory Assets and Liabilities", "label": "Schedule of Regulatory Assets and Liabilities [Table Text Block]", "terseLabel": "Schedule of Regulatory Assets and Liabilities" } } }, "localname": "ScheduleOfRegulatoryAssetsAndLiabilitiesTableTextBlock", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/RegulatoryMattersTables" ], "xbrltype": "textBlockItemType" }, "ottr_ScheduleOfShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsValuationAssumptionsTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Schedule of Share-based Payment Award, Equity Instruments Other Than Options, Valuation Assumptions", "label": "Schedule of Share-based Payment Award, Equity Instruments Other Than Options, Valuation Assumptions [Table Text Block]", "terseLabel": "Schedule of Weighted-Average Assumptions" } } }, "localname": "ScheduleOfShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsValuationAssumptionsTableTextBlock", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/ShareBasedPaymentsTables" ], "xbrltype": "textBlockItemType" }, "ottr_ScrapMetalSalesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Scrap Metal Sales", "label": "Scrap Metal Sales [Member]", "terseLabel": "Scrap Metal Sales" } } }, "localname": "ScrapMetalSalesMember", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/RevenueDetails" ], "xbrltype": "domainItemType" }, "ottr_SecondShelfRegistrationMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Second Shelf Registration", "label": "Second Shelf Registration [Member]", "terseLabel": "Second Shelf Registration" } } }, "localname": "SecondShelfRegistrationMember", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/StockholdersEquityDetails" ], "xbrltype": "domainItemType" }, "ottr_SeniorUnsecuredNotes307SeriesADueFebruary252030Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Senior Unsecured Notes 3.07%, Series A, Due February 25, 2030", "label": "Senior Unsecured Notes 3.07%, Series A, Due February 25, 2030 [Member]", "terseLabel": "Series 2020A Senior Unsecured Notes" } } }, "localname": "SeniorUnsecuredNotes307SeriesADueFebruary252030Member", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/ShortTermandLongTermBorrowingsBreakdownofOutstandingLongtermDebtDetails" ], "xbrltype": "domainItemType" }, "ottr_SeniorUnsecuredNotes307SeriesADueOctober102029Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents series A senior unsecured notes 3.07% due October 10, 2019.", "label": "Senior Unsecured Notes 3.07%, Series A, Due October 10, 2029 [Member]", "terseLabel": "Series 2019A Senior Unsecured Notes" } } }, "localname": "SeniorUnsecuredNotes307SeriesADueOctober102029Member", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/ShortTermandLongTermBorrowingsBreakdownofOutstandingLongtermDebtDetails" ], "xbrltype": "domainItemType" }, "ottr_SeniorUnsecuredNotes322SeriesBDueAugust202030Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Senior Unsecured Notes 3.22%, Series B, Due August 20, 2030", "label": "Senior Unsecured Notes 3.22%, Series B, Due August 20, 2030 [Member]", "terseLabel": "Series 2020B Senior Unsecured Notes" } } }, "localname": "SeniorUnsecuredNotes322SeriesBDueAugust202030Member", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/ShortTermandLongTermBorrowingsBreakdownofOutstandingLongtermDebtDetails" ], "xbrltype": "domainItemType" }, "ottr_SeniorUnsecuredNotes352SeriesBDueOctober102039Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Related to debt.", "label": "Senior Unsecured Notes 3.52%, Series B, Due October 10, 2039 [Member]", "terseLabel": "Series 2019B Senior Unsecured Notes" } } }, "localname": "SeniorUnsecuredNotes352SeriesBDueOctober102039Member", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/ShortTermandLongTermBorrowingsBreakdownofOutstandingLongtermDebtDetails" ], "xbrltype": "domainItemType" }, "ottr_SeniorUnsecuredNotes362SeriesCDueFebruary252040Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Senior Unsecured Notes 3.62%, Series C, Due February 25, 2040", "label": "Senior Unsecured Notes 3.62%, Series C, Due February 25, 2040 [Member]", "terseLabel": "Series 2020C Senior Unsecured Notes" } } }, "localname": "SeniorUnsecuredNotes362SeriesCDueFebruary252040Member", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/ShortTermandLongTermBorrowingsBreakdownofOutstandingLongtermDebtDetails" ], "xbrltype": "domainItemType" }, "ottr_SeniorUnsecuredNotes382SeriesCDueOctober102049Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Related to debt.", "label": "Senior Unsecured Notes 3.82%, Series C, Due October 10, 2049 [Member]", "terseLabel": "Series 2019C Senior Unsecured Notes" } } }, "localname": "SeniorUnsecuredNotes382SeriesCDueOctober102049Member", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/ShortTermandLongTermBorrowingsBreakdownofOutstandingLongtermDebtDetails" ], "xbrltype": "domainItemType" }, "ottr_SeniorUnsecuredNotes392SeriesDDueFebruary252050Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Senior Unsecured Notes 3.92%, Series D, Due February 25, 2050", "label": "Senior Unsecured Notes 3.92%, Series D, Due February 25, 2050 [Member]", "terseLabel": "Series 2020D Senior Unsecured Notes" } } }, "localname": "SeniorUnsecuredNotes392SeriesDDueFebruary252050Member", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/ShortTermandLongTermBorrowingsBreakdownofOutstandingLongtermDebtDetails" ], "xbrltype": "domainItemType" }, "ottr_SeniorUnsecuredNotes407SeriesADueFebruary72048Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents information about Senior Unsecured Notes 4.07%, Series 2018A, due February 7, 2048.", "label": "Senior Unsecured Notes 4.07%, Series A, Due February 7, 2048 [Member]", "terseLabel": "Series 2018A Senior Unsecured Notes" } } }, "localname": "SeniorUnsecuredNotes407SeriesADueFebruary72048Member", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/ShortTermandLongTermBorrowingsBreakdownofOutstandingLongtermDebtDetails" ], "xbrltype": "domainItemType" }, "ottr_SeniorUnsecuredNotes463SeriesADueDecember12021Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents information about Senior Unsecured Notes 4.63%, due December 1, 2021.", "label": "Senior Unsecured Notes 4.63%, Series A, Due December 1, 2021 [Member]", "terseLabel": "Series 2011A Senior Unsecured Notes" } } }, "localname": "SeniorUnsecuredNotes463SeriesADueDecember12021Member", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/ShortTermandLongTermBorrowingsBreakdownofOutstandingLongtermDebtDetails" ], "xbrltype": "domainItemType" }, "ottr_SeniorUnsecuredNotes468SeriesADueFebruary272029Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents information about Senior Unsecured Notes 4.68%, Series A, due February 27, 2029.", "label": "Senior Unsecured Notes 4.68%, Series A, Due February 27, 2029 [Member]", "terseLabel": "Series 2013A Senior Unsecured Notes" } } }, "localname": "SeniorUnsecuredNotes468SeriesADueFebruary272029Member", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/ShortTermandLongTermBorrowingsBreakdownofOutstandingLongtermDebtDetails" ], "xbrltype": "domainItemType" }, "ottr_SeniorUnsecuredNotes547SeriesBDueFebruary272044Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents information about Senior Unsecured Notes 5.47%, Series B, due February 27, 2044.", "label": "Senior Unsecured Notes 5.47%, Series B, Due February 27, 2044 [Member]", "terseLabel": "Series 2013B Senior Unsecured Notes" } } }, "localname": "SeniorUnsecuredNotes547SeriesBDueFebruary272044Member", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/ShortTermandLongTermBorrowingsBreakdownofOutstandingLongtermDebtDetails" ], "xbrltype": "domainItemType" }, "ottr_SeniorUnsecuredNotes615SeriesBDueAugust202022Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents information about Senior Unsecured Notes 6.15%, Series B, due August 20, 2022.", "label": "Senior Unsecured Notes 6.15%, Series B, Due August 20, 2022 [Member]", "terseLabel": "Series 2007B Senior Unsecured Notes" } } }, "localname": "SeniorUnsecuredNotes615SeriesBDueAugust202022Member", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/ShortTermandLongTermBorrowingsBreakdownofOutstandingLongtermDebtDetails" ], "xbrltype": "domainItemType" }, "ottr_SeniorUnsecuredNotes637SeriesCDueAugust202027Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents information about Senior Unsecured Notes 6.37%, Series C, due August 20, 2027.", "label": "Senior Unsecured Notes 6.37%, Series C, Due August 20, 2027 [Member]", "terseLabel": "Series 2007C Senior Unsecured Notes" } } }, "localname": "SeniorUnsecuredNotes637SeriesCDueAugust202027Member", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/ShortTermandLongTermBorrowingsBreakdownofOutstandingLongtermDebtDetails" ], "xbrltype": "domainItemType" }, "ottr_SeniorUnsecuredNotes647SeriesDDueAugust202037Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents information about Senior Unsecured Notes 6.47%, Series D, due August 20, 2037.", "label": "Senior Unsecured Notes 6.47%, Series D, Due August 20, 2037 [Member]", "terseLabel": "Series 2007D Senior Unsecured Notes" } } }, "localname": "SeniorUnsecuredNotes647SeriesDDueAugust202037Member", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/ShortTermandLongTermBorrowingsBreakdownofOutstandingLongtermDebtDetails" ], "xbrltype": "domainItemType" }, "ottr_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestedAwardPeriod": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Share-based Compensation Arrangement by Share-based Payment Award, Vested Award Period", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Vested Award Period", "terseLabel": "Awards vesting period" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardVestedAwardPeriod", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/ShareBasedPaymentsNarrativeDetails" ], "xbrltype": "durationItemType" }, "ottr_The355GuaranteedSeniorNotesDueDecember152026Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents information about 3.55% Guaranteed Senior Notes, due December 15, 2026.", "label": "The 3.55% Guaranteed Senior Notes, Due December 15, 2026 [Member]", "terseLabel": "Guaranteed Senior Notes" } } }, "localname": "The355GuaranteedSeniorNotesDueDecember152026Member", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/ShortTermandLongTermBorrowingsBreakdownofOutstandingLongtermDebtDetails" ], "xbrltype": "domainItemType" }, "ottr_UnrecoveredProjectCostsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Unrecovered Project Costs", "label": "Unrecovered Project Costs [Member]", "terseLabel": "Unrecovered Project Costs" } } }, "localname": "UnrecoveredProjectCostsMember", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/RegulatoryMattersRegulatoryAssetsandLiabilitiesDetails" ], "xbrltype": "domainItemType" }, "ottr_WholesaleMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Sale of product through wholesale purchases.", "label": "Wholesale [Member]", "terseLabel": "Wholesale" } } }, "localname": "WholesaleMember", "nsuri": "http://www.otpco.com/20210331", "presentation": [ "http://www.otpco.com/role/RevenueDetails" ], "xbrltype": "domainItemType" }, "srt_ConsolidationItemsAxis": { "auth_ref": [ "r161", "r174", "r175", "r176", "r177", "r179", "r181", "r185" ], "lang": { "en-us": { "role": { "label": "Consolidation Items [Axis]", "terseLabel": "Consolidation Items [Axis]" } } }, "localname": "ConsolidationItemsAxis", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://www.otpco.com/role/RevenueDetails", "http://www.otpco.com/role/SegmentInformationBusinessSegmentsDetails" ], "xbrltype": "stringItemType" }, "srt_ConsolidationItemsDomain": { "auth_ref": [ "r161", "r174", "r175", "r176", "r177", "r179", "r181", "r185" ], "lang": { "en-us": { "role": { "label": "Consolidation Items [Domain]", "terseLabel": "Consolidation Items [Domain]" } } }, "localname": "ConsolidationItemsDomain", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://www.otpco.com/role/RevenueDetails", "http://www.otpco.com/role/SegmentInformationBusinessSegmentsDetails" ], "xbrltype": "domainItemType" }, "srt_MaximumMember": { "auth_ref": [ "r354", "r359", "r455", "r456", "r457", "r458", "r459", "r460", "r479", "r513", "r515" ], "lang": { "en-us": { "role": { "label": "Maximum [Member]", "terseLabel": "Maximum" } } }, "localname": "MaximumMember", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://www.otpco.com/role/ShareBasedPaymentsNarrativeDetails", "http://www.otpco.com/role/ShortTermandLongTermBorrowingsNarrativeDetails", "http://www.otpco.com/role/StockholdersEquityDetails" ], "xbrltype": "domainItemType" }, "srt_MinimumMember": { "auth_ref": [ "r354", "r359", "r455", "r456", "r457", "r458", "r459", "r460", "r479", "r513", "r515" ], "lang": { "en-us": { "role": { "label": "Minimum [Member]", "terseLabel": "Minimum" } } }, "localname": "MinimumMember", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://www.otpco.com/role/ShareBasedPaymentsNarrativeDetails", "http://www.otpco.com/role/ShortTermandLongTermBorrowingsNarrativeDetails", "http://www.otpco.com/role/StockholdersEquityDetails" ], "xbrltype": "domainItemType" }, "srt_ProductOrServiceAxis": { "auth_ref": [ "r188", "r262", "r264", "r480", "r512", "r514" ], "lang": { "en-us": { "role": { "label": "Product and Service [Axis]", "terseLabel": "Product and Service [Axis]" } } }, "localname": "ProductOrServiceAxis", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofIncome", "http://www.otpco.com/role/RevenueDetails" ], "xbrltype": "stringItemType" }, "srt_ProductsAndServicesDomain": { "auth_ref": [ "r188", "r262", "r264", "r480", "r512", "r514" ], "lang": { "en-us": { "role": { "label": "Product and Service [Domain]", "terseLabel": "Product and Service [Domain]" } } }, "localname": "ProductsAndServicesDomain", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofIncome", "http://www.otpco.com/role/RevenueDetails" ], "xbrltype": "domainItemType" }, "srt_RangeAxis": { "auth_ref": [ "r298", "r354", "r359", "r455", "r456", "r457", "r458", "r459", "r460", "r479", "r513", "r515" ], "lang": { "en-us": { "role": { "label": "Statistical Measurement [Axis]", "terseLabel": "Statistical Measurement [Axis]" } } }, "localname": "RangeAxis", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://www.otpco.com/role/ShareBasedPaymentsNarrativeDetails", "http://www.otpco.com/role/ShortTermandLongTermBorrowingsNarrativeDetails", "http://www.otpco.com/role/StockholdersEquityDetails" ], "xbrltype": "stringItemType" }, "srt_RangeMember": { "auth_ref": [ "r298", "r354", "r359", "r455", "r456", "r457", "r458", "r459", "r460", "r479", "r513", "r515" ], "lang": { "en-us": { "role": { "label": "Statistical Measurement [Domain]", "terseLabel": "Statistical Measurement [Domain]" } } }, "localname": "RangeMember", "nsuri": "http://fasb.org/srt/2020-01-31", "presentation": [ "http://www.otpco.com/role/ShareBasedPaymentsNarrativeDetails", "http://www.otpco.com/role/ShortTermandLongTermBorrowingsNarrativeDetails", "http://www.otpco.com/role/StockholdersEquityDetails" ], "xbrltype": "domainItemType" }, "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_AccountsPayableCurrent": { "auth_ref": [ "r46" ], "calculation": { "http://www.otpco.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", "terseLabel": "Accounts Payable" } } }, "localname": "AccountsPayableCurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccountsReceivableAllowanceForCreditLossTableTextBlock": { "auth_ref": [ "r213" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of allowance for credit loss on accounts receivable.", "label": "Accounts Receivable, Allowance for Credit Loss [Table Text Block]", "terseLabel": "Summary of Activity in Allowance for Credit Losses" } } }, "localname": "AccountsReceivableAllowanceForCreditLossTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/SelectBalanceSheetInformationTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_AccountsReceivableGross": { "auth_ref": [ "r193" ], "calculation": { "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofReceivablesDetails": { "order": 1.0, "parentTag": "us-gaap_AccountsReceivableNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business.", "label": "Accounts Receivable, before Allowance for Credit Loss", "totalLabel": "Total Receivables" } } }, "localname": "AccountsReceivableGross", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofReceivablesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccountsReceivableGrossCurrent": { "auth_ref": [ "r193", "r194" ], "calculation": { "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofReceivablesDetails": { "order": 3.0, "parentTag": "us-gaap_AccountsReceivableGross", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount, before 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, before Allowance for Credit Loss, Current", "terseLabel": "Trade" } } }, "localname": "AccountsReceivableGrossCurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofReceivablesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccountsReceivableNet": { "auth_ref": [ "r29", "r496" ], "calculation": { "http://www.otpco.com/role/ConsolidatedBalanceSheets": { "order": 2.0, "parentTag": "us-gaap_AssetsCurrent", "weight": 1.0 }, "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofReceivablesDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "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.", "label": "Accounts Receivable, after Allowance for Credit Loss", "terseLabel": "Receivables, net of allowance for credit losses", "totalLabel": "Receivables, net of allowance for credit losses" } } }, "localname": "AccountsReceivableNet", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets", "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofReceivablesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrent": { "auth_ref": [ "r8", "r49", "r389" ], "calculation": { "http://www.otpco.com/role/ConsolidatedBalanceSheets": { "order": 1.0, "parentTag": "us-gaap_LiabilitiesCurrent", "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": "Accrued Taxes" } } }, "localname": "AccrualForTaxesOtherThanIncomeTaxesCurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccumulatedDeferredInvestmentTaxCredit": { "auth_ref": [ "r55", "r128", "r390" ], "calculation": { "http://www.otpco.com/role/ConsolidatedBalanceSheets": { "order": 2.0, "parentTag": "us-gaap_LiabilitiesNoncurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The noncurrent portion of the reserve for accumulated deferred investment tax credits as of the balance sheet date. This is the remaining investment credit, which will reduce the cost of services collected from ratepayers by a ratable portion over the investment's regulatory life.", "label": "Accumulated Deferred Investment Tax Credit", "terseLabel": "Deferred Tax Credits" } } }, "localname": "AccumulatedDeferredInvestmentTaxCredit", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLossMember": { "auth_ref": [ "r68", "r73", "r76", "r417" ], "lang": { "en-us": { "role": { "documentation": "Accumulated other comprehensive income (loss) related to gain (loss) component of defined benefit plans attributable to the parent.", "label": "Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member]", "terseLabel": "Unamortized Actuarial Losses and Prior Service Costs Related to Pension and Postretirement Benefits, net of tax" } } }, "localname": "AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLossMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofShareholdersEquity" ], "xbrltype": "domainItemType" }, "us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment": { "auth_ref": [ "r44", "r229" ], "calculation": { "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofPropertyPlantandEquipmentDetails": { "order": 1.0, "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", "terseLabel": "Less Accumulated Depreciation and Amortization" } } }, "localname": "AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofPropertyPlantandEquipmentDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember": { "auth_ref": [ "r65", "r66", "r67", "r73", "r76" ], "lang": { "en-us": { "role": { "documentation": "Accumulated unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), attributable to parent.", "label": "AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member]", "terseLabel": "Unrealized Gain (Loss) on Available-for-Sale Debt, net of tax" } } }, "localname": "AccumulatedNetUnrealizedInvestmentGainLossMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofShareholdersEquity" ], "xbrltype": "domainItemType" }, "us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax": { "auth_ref": [ "r32", "r71", "r72", "r73", "r500", "r520", "r521" ], "calculation": { "http://www.otpco.com/role/ConsolidatedBalanceSheets": { "order": 3.0, "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", "verboseLabel": "Accumulated Other Comprehensive Loss" } } }, "localname": "AccumulatedOtherComprehensiveIncomeLossNetOfTax", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccumulatedOtherComprehensiveIncomeMember": { "auth_ref": [ "r70", "r73", "r76", "r115", "r116", "r117", "r417", "r516", "r517" ], "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://www.otpco.com/role/ConsolidatedStatementsofShareholdersEquity" ], "xbrltype": "domainItemType" }, "us-gaap_AdditionalPaidInCapitalCommonStock": { "auth_ref": [ "r30" ], "calculation": { "http://www.otpco.com/role/ConsolidatedBalanceSheets": { "order": 2.0, "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": "Additional Paid-In Capital" } } }, "localname": "AdditionalPaidInCapitalCommonStock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_AdditionalPaidInCapitalMember": { "auth_ref": [ "r115", "r116", "r117", "r380", "r381", "r382" ], "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": "Additional Paid-In Capital" } } }, "localname": "AdditionalPaidInCapitalMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofShareholdersEquity" ], "xbrltype": "domainItemType" }, "us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue": { "auth_ref": [ "r361", "r363", "r386", "r387" ], "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", "terseLabel": "Stock Compensation Expense" } } }, "localname": "AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofShareholdersEquity" ], "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://www.otpco.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_AllocatedShareBasedCompensationExpense": { "auth_ref": [ "r363", "r378", "r385" ], "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 payment arrangement, expense" } } }, "localname": "AllocatedShareBasedCompensationExpense", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ShareBasedPaymentsNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AllowanceForDoubtfulAccountsReceivable": { "auth_ref": [ "r195", "r209", "r211", "r212" ], "calculation": { "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofReceivablesDetails": { "order": 2.0, "parentTag": "us-gaap_AccountsReceivableNet", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of allowance for credit loss on accounts receivable.", "label": "Accounts Receivable, Allowance for Credit Loss", "periodEndLabel": "Ending Balance, March 31", "periodStartLabel": "Beginning Balance, January 1", "terseLabel": "Less Allowance for Credit Losses" } } }, "localname": "AllowanceForDoubtfulAccountsReceivable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofReceivablesDetails", "http://www.otpco.com/role/SelectBalanceSheetInformationSummaryofActivityinAllowanceforCreditLossesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease": { "auth_ref": [ "r213" ], "lang": { "en-us": { "role": { "documentation": "Amount of increase (decrease) in allowance for credit loss on accounts receivable.", "label": "Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease)", "terseLabel": "Additions Charged to Expense" } } }, "localname": "AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/SelectBalanceSheetInformationSummaryofActivityinAllowanceforCreditLossesDetails" ], "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": "Accounts Receivable, Allowance for Credit Loss [Roll Forward]" } } }, "localname": "AllowanceForDoubtfulAccountsReceivableRollforward", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/SelectBalanceSheetInformationSummaryofActivityinAllowanceforCreditLossesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AociBeforeTaxAttributableToParent": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount before tax of increase (decrease) in accumulated equity from transactions and other events and circumstances from non-owner sources, attributable to parent. Excludes net income (loss), and accumulated changes in equity from transactions resulting from investments by owners (distributions to owners).", "label": "AOCI before Tax, Attributable to Parent", "terseLabel": "Before Tax" } } }, "localname": "AociBeforeTaxAttributableToParent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofShareholdersEquity" ], "xbrltype": "monetaryItemType" }, "us-gaap_AociTaxAttributableToParent": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of tax expense (benefit) allocated to accumulated other comprehensive income (loss) attributable to parent.", "label": "AOCI Tax, Attributable to Parent", "negatedLabel": "Tax Effect" } } }, "localname": "AociTaxAttributableToParent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofShareholdersEquity" ], "xbrltype": "monetaryItemType" }, "us-gaap_Assets": { "auth_ref": [ "r110", "r169", "r176", "r183", "r204", "r414", "r418", "r435", "r483", "r497" ], "calculation": { "http://www.otpco.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", "verboseLabel": "Identifiable Assets" } } }, "localname": "Assets", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets", "http://www.otpco.com/role/SegmentInformationBusinessSegmentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AssetsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Assets [Abstract]", "terseLabel": "Assets" } } }, "localname": "AssetsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "stringItemType" }, "us-gaap_AssetsCurrent": { "auth_ref": [ "r4", "r5", "r63", "r110", "r204", "r414", "r418", "r435" ], "calculation": { "http://www.otpco.com/role/ConsolidatedBalanceSheets": { "order": 2.0, "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://www.otpco.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://www.otpco.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "stringItemType" }, "us-gaap_AssetsFairValueDisclosure": { "auth_ref": [ "r420" ], "calculation": { "http://www.otpco.com/role/FairValueMeasurementsScheduleofFairValueMeasurementsRecurringandNonrecurringDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.", "label": "Assets, Fair Value Disclosure", "totalLabel": "Total Assets" } } }, "localname": "AssetsFairValueDisclosure", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/FairValueMeasurementsScheduleofFairValueMeasurementsRecurringandNonrecurringDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AssetsNoncurrent": { "auth_ref": [ "r13", "r14", "r15", "r16", "r17", "r18", "r19", "r20", "r110", "r204", "r414", "r418", "r435" ], "calculation": { "http://www.otpco.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 after one year or beyond the normal operating cycle, if longer.", "label": "Assets, Noncurrent", "totalLabel": "Total Noncurrent Assets" } } }, "localname": "AssetsNoncurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_AssetsNoncurrentAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Assets, Noncurrent [Abstract]", "terseLabel": "Noncurrent Assets" } } }, "localname": "AssetsNoncurrentAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "stringItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtSecurities": { "auth_ref": [ "r197", "r198", "r217", "r487" ], "calculation": { "http://www.otpco.com/role/FairValueMeasurementsScheduleofFairValueMeasurementsRecurringandNonrecurringDetails": { "order": 1.0, "parentTag": "us-gaap_AssetsFairValueDisclosure", "weight": 1.0 }, "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofInvestmentsDetails": { "order": 2.0, "parentTag": "us-gaap_Investments", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).", "label": "Debt Securities, Available-for-sale", "terseLabel": "Debt Securities" } } }, "localname": "AvailableForSaleSecuritiesDebtSecurities", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/FairValueMeasurementsScheduleofFairValueMeasurementsRecurringandNonrecurringDetails", "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofInvestmentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AwardTypeAxis": { "auth_ref": [ "r364", "r379" ], "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://www.otpco.com/role/EarningsPerShareDetails", "http://www.otpco.com/role/ShareBasedPaymentsNarrativeDetails", "http://www.otpco.com/role/ShareBasedPaymentsSummaryofRestrictedStockAwardsandStockPerformanceAwardsDetails", "http://www.otpco.com/role/ShareBasedPaymentsTables", "http://www.otpco.com/role/ShareBasedPaymentsWeightedAverageAssumptionsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_BasisOfAccountingPolicyPolicyTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for basis of accounting, or basis of presentation, used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS).", "label": "Basis of Accounting, Policy [Policy Text Block]", "terseLabel": "Basis of Presentation" } } }, "localname": "BasisOfAccountingPolicyPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/SummaryofSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_CapitalizationLongtermDebtAndEquity": { "auth_ref": [], "calculation": { "http://www.otpco.com/role/ConsolidatedBalanceSheets": { "order": 1.0, "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "This element represents the total consolidated (as applicable) capitalization of the entity which is comprised of its long-term debt and equity instruments. The table may be detailed by subsidiary (legal entity) and include information by type of debt or equity detailed by instrument.", "label": "Capitalization, Long-term Debt and Equity", "totalLabel": "Total Capitalization", "verboseLabel": "Total capitalization" } } }, "localname": "CapitalizationLongtermDebtAndEquity", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets", "http://www.otpco.com/role/StockholdersEquityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CapitalizationLongtermDebtAndEquityAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Capitalization, Long-term Debt and Equity [Abstract]", "terseLabel": "Capitalization" } } }, "localname": "CapitalizationLongtermDebtAndEquityAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "stringItemType" }, "us-gaap_CarryingReportedAmountFairValueDisclosureMember": { "auth_ref": [ "r433", "r434" ], "lang": { "en-us": { "role": { "documentation": "Measured as reported on the statement of financial position (balance sheet).", "label": "Reported Value Measurement [Member]", "terseLabel": "Carrying Amount" } } }, "localname": "CarryingReportedAmountFairValueDisclosureMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/FairValueMeasurementsScheduleofFairValueofAssetsandLiabilitiesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CashAndCashEquivalentsAtCarryingValue": { "auth_ref": [ "r2", "r40", "r106" ], "calculation": { "http://www.otpco.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", "terseLabel": "Cash and Cash Equivalents" } } }, "localname": "CashAndCashEquivalentsAtCarryingValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashAndCashEquivalentsFairValueDisclosure": { "auth_ref": [], "calculation": { "http://www.otpco.com/role/FairValueMeasurementsScheduleofFairValueMeasurementsRecurringandNonrecurringDetails": { "order": 3.0, "parentTag": "us-gaap_AssetsFairValueDisclosure", "weight": 1.0 } }, "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": "Money Market Funds" } } }, "localname": "CashAndCashEquivalentsFairValueDisclosure", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/FairValueMeasurementsScheduleofFairValueMeasurementsRecurringandNonrecurringDetails", "http://www.otpco.com/role/FairValueMeasurementsScheduleofFairValueofAssetsandLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents": { "auth_ref": [ "r100", "r106", "r107" ], "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 Period", "periodStartLabel": "Cash and Cash Equivalents at Beginning of Period" } } }, "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect": { "auth_ref": [ "r100", "r436" ], "calculation": { "http://www.otpco.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": "Net Change in Cash and Cash Equivalents" } } }, "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_ClassOfStockLineItems": { "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": "Class of Stock [Line Items]", "terseLabel": "Class of Stock [Line Items]" } } }, "localname": "ClassOfStockLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/StockholdersEquityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_CommitmentsAndContingencies": { "auth_ref": [ "r54", "r237", "r488", "r504" ], "calculation": { "http://www.otpco.com/role/ConsolidatedBalanceSheets": { "order": 4.0, "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 9)" } } }, "localname": "CommitmentsAndContingencies", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_CommitmentsAndContingenciesDisclosureAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Commitments and Contingencies Disclosure [Abstract]" } } }, "localname": "CommitmentsAndContingenciesDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_CommitmentsAndContingenciesDisclosureTextBlock": { "auth_ref": [ "r234", "r235", "r236", "r238" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for commitments and contingencies.", "label": "Commitments and Contingencies Disclosure [Text Block]", "terseLabel": "Commitments and Contingencies" } } }, "localname": "CommitmentsAndContingenciesDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/CommitmentsandContingencies" ], "xbrltype": "textBlockItemType" }, "us-gaap_CommonStockDividendsPerShareDeclared": { "auth_ref": [ "r251" ], "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": "Common Dividends (in dollars per share)" } } }, "localname": "CommonStockDividendsPerShareDeclared", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofShareholdersEquityParentheticals" ], "xbrltype": "perShareItemType" }, "us-gaap_CommonStockMember": { "auth_ref": [ "r115", "r116" ], "lang": { "en-us": { "role": { "documentation": "Stock that is subordinate to all other stock of the issuer.", "label": "Common Stock [Member]", "terseLabel": "Common Shares" } } }, "localname": "CommonStockMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofShareholdersEquity" ], "xbrltype": "domainItemType" }, "us-gaap_CommonStockParOrStatedValuePerShare": { "auth_ref": [ "r28" ], "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://www.otpco.com/role/ConsolidatedBalanceSheetsParentheticals" ], "xbrltype": "perShareItemType" }, "us-gaap_CommonStockSharesAuthorized": { "auth_ref": [ "r28" ], "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, shares authorized (in shares)" } } }, "localname": "CommonStockSharesAuthorized", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheetsParentheticals" ], "xbrltype": "sharesItemType" }, "us-gaap_CommonStockSharesOutstanding": { "auth_ref": [ "r28", "r244" ], "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", "terseLabel": "Common stock, shares outstanding (in shares)" } } }, "localname": "CommonStockSharesOutstanding", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheetsParentheticals" ], "xbrltype": "sharesItemType" }, "us-gaap_CommonStockValue": { "auth_ref": [ "r28" ], "calculation": { "http://www.otpco.com/role/ConsolidatedBalanceSheets": { "order": 1.0, "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 Shares: 50,000,000 share authorized of $5 par value; 41,510,455 and 41,469,879 outstanding at March\u00a031, 2021 and December 31, 2020" } } }, "localname": "CommonStockValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_CompensationAndRetirementDisclosureAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Retirement Benefits [Abstract]" } } }, "localname": "CompensationAndRetirementDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_ComprehensiveIncomeNetOfTax": { "auth_ref": [ "r79", "r81", "r82", "r86", "r491", "r508" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofComprehensiveIncome": { "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": "Total Comprehensive Income" } } }, "localname": "ComprehensiveIncomeNetOfTax", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofComprehensiveIncome" ], "xbrltype": "monetaryItemType" }, "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 Work in Progress" } } }, "localname": "ConstructionInProgressMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofPropertyPlantandEquipmentDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CorporateDebtSecuritiesMember": { "auth_ref": [ "r299", "r344", "r522" ], "lang": { "en-us": { "role": { "documentation": "Debt securities issued by domestic or foreign corporate business, banks and other entities with a promise of repayment.", "label": "Corporate Debt Securities [Member]", "terseLabel": "Corporate Debt Securities" } } }, "localname": "CorporateDebtSecuritiesMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/FairValueMeasurementsScheduleofFairValueMeasurementsRecurringandNonrecurringDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CorporateNonSegmentMember": { "auth_ref": [ "r174", "r175", "r176", "r177", "r179", "r185", "r187" ], "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": "Corporate" } } }, "localname": "CorporateNonSegmentMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/SegmentInformationBusinessSegmentsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CostsAndExpenses": { "auth_ref": [ "r88" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofIncome": { "order": 2.0, "parentTag": "us-gaap_OperatingIncomeLoss", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Total costs of sales and operating expenses for the period.", "label": "Costs and Expenses", "totalLabel": "Total Operating Expenses" } } }, "localname": "CostsAndExpenses", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_CostsAndExpensesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Costs and Expenses [Abstract]", "terseLabel": "Operating Expenses" } } }, "localname": "CostsAndExpensesAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "stringItemType" }, "us-gaap_DebtDisclosureAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Debt Disclosure [Abstract]" } } }, "localname": "DebtDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_DebtDisclosureTextBlock": { "auth_ref": [ "r240" ], "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": "Short-Term and Long-Term Borrowings" } } }, "localname": "DebtDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ShortTermandLongTermBorrowings" ], "xbrltype": "textBlockItemType" }, "us-gaap_DebtInstrumentAxis": { "auth_ref": [ "r22", "r23", "r24", "r484", "r485", "r495" ], "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://www.otpco.com/role/ShortTermandLongTermBorrowingsBreakdownofOutstandingLongtermDebtDetails", "http://www.otpco.com/role/ShortTermandLongTermBorrowingsLinesofCreditDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DebtInstrumentInterestRateStatedPercentage": { "auth_ref": [ "r51" ], "lang": { "en-us": { "role": { "documentation": "Contractual interest rate for funds borrowed, under the debt agreement.", "label": "Debt Instrument, Interest Rate, Stated Percentage", "terseLabel": "Rate" } } }, "localname": "DebtInstrumentInterestRateStatedPercentage", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ShortTermandLongTermBorrowingsBreakdownofOutstandingLongtermDebtDetails" ], "xbrltype": "percentItemType" }, "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://www.otpco.com/role/ShortTermandLongTermBorrowingsBreakdownofOutstandingLongtermDebtDetails", "http://www.otpco.com/role/ShortTermandLongTermBorrowingsNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DebtInstrumentNameDomain": { "auth_ref": [ "r52" ], "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://www.otpco.com/role/ShortTermandLongTermBorrowingsBreakdownofOutstandingLongtermDebtDetails", "http://www.otpco.com/role/ShortTermandLongTermBorrowingsLinesofCreditDetails" ], "xbrltype": "domainItemType" }, "us-gaap_DebtInstrumentTable": { "auth_ref": [ "r52", "r112", "r245", "r248", "r249", "r250", "r445", "r446", "r447", "r494" ], "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://www.otpco.com/role/ShortTermandLongTermBorrowingsBreakdownofOutstandingLongtermDebtDetails", "http://www.otpco.com/role/ShortTermandLongTermBorrowingsNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DebtInstrumentUnamortizedDiscount": { "auth_ref": [ "r445", "r447" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount, after accumulated amortization, of debt discount.", "label": "Debt Instrument, Unamortized Discount", "terseLabel": "Unamortized Long-Term Debt Issuance Costs" } } }, "localname": "DebtInstrumentUnamortizedDiscount", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ShortTermandLongTermBorrowingsBreakdownofOutstandingLongtermDebtDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredIncomeTaxExpenseBenefit": { "auth_ref": [ "r104", "r111", "r398", "r403", "r404", "r405" ], "calculation": { "http://www.otpco.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 Taxes" } } }, "localname": "DeferredIncomeTaxExpenseBenefit", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredIncomeTaxLiabilitiesNet": { "auth_ref": [ "r391", "r392" ], "calculation": { "http://www.otpco.com/role/ConsolidatedBalanceSheets": { "order": 4.0, "parentTag": "us-gaap_LiabilitiesNoncurrent", "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://www.otpco.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_DefinedBenefitPensionPlanLiabilitiesNoncurrent": { "auth_ref": [ "r26", "r274", "r275", "r297" ], "calculation": { "http://www.otpco.com/role/ConsolidatedBalanceSheets": { "order": 5.0, "parentTag": "us-gaap_LiabilitiesNoncurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of liability, recognized in statement of financial position, for defined benefit pension plan, classified as noncurrent. Excludes other postretirement benefit plan.", "label": "Liability, Defined Benefit Pension Plan, Noncurrent", "terseLabel": "Pensions Benefit Liability" } } }, "localname": "DefinedBenefitPensionPlanLiabilitiesNoncurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_DefinedBenefitPlanContributionsByEmployer": { "auth_ref": [ "r291", "r299", "r301", "r342", "r344", "r345" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of contribution received by defined benefit plan from employer which increases plan assets.", "label": "Defined Benefit Plan, Plan Assets, Contributions by Employer", "terseLabel": "Contributions by employer" } } }, "localname": "DefinedBenefitPlanContributionsByEmployer", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/PensionPlanandOtherPostretirementBenefitsNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "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://www.otpco.com/role/PensionPlanandOtherPostretirementBenefitsComponentsofNetPeriodicBenefitCostDetails", "http://www.otpco.com/role/PensionPlanandOtherPostretirementBenefitsNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets": { "auth_ref": [ "r276", "r313", "r337", "r344", "r345" ], "calculation": { "http://www.otpco.com/role/PensionPlanandOtherPostretirementBenefitsComponentsofNetPeriodicBenefitCostDetails": { "order": 3.0, "parentTag": "us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan.", "label": "Defined Benefit Plan, Expected Return (Loss) on Plan Assets", "negatedLabel": "Expected Return on Assets" } } }, "localname": "DefinedBenefitPlanExpectedReturnOnPlanAssets", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/PensionPlanandOtherPostretirementBenefitsComponentsofNetPeriodicBenefitCostDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DefinedBenefitPlanInterestCost": { "auth_ref": [ "r276", "r280", "r312", "r336", "r344", "r345" ], "calculation": { "http://www.otpco.com/role/PensionPlanandOtherPostretirementBenefitsComponentsofNetPeriodicBenefitCostDetails": { "order": 6.0, "parentTag": "us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of cost recognized for passage of time related to defined benefit plan.", "label": "Defined Benefit Plan, Interest Cost", "terseLabel": "Interest Cost on Projected Benefit Obligation" } } }, "localname": "DefinedBenefitPlanInterestCost", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/PensionPlanandOtherPostretirementBenefitsComponentsofNetPeriodicBenefitCostDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost": { "auth_ref": [ "r310", "r334", "r344", "r345" ], "calculation": { "http://www.otpco.com/role/PensionPlanandOtherPostretirementBenefitsComponentsofNetPeriodicBenefitCostDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of net periodic benefit cost (credit) for defined benefit plan.", "label": "Defined Benefit Plan, Net Periodic Benefit Cost (Credit)", "totalLabel": "Net Periodic Pension Cost" } } }, "localname": "DefinedBenefitPlanNetPeriodicBenefitCost", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/PensionPlanandOtherPostretirementBenefitsComponentsofNetPeriodicBenefitCostDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DefinedBenefitPlanServiceCost": { "auth_ref": [ "r278", "r311", "r335", "r344", "r345" ], "calculation": { "http://www.otpco.com/role/PensionPlanandOtherPostretirementBenefitsComponentsofNetPeriodicBenefitCostDetails": { "order": 1.0, "parentTag": "us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost", "weight": 1.0 } }, "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": "Service Cost\u2013Benefit Earned During the Period" } } }, "localname": "DefinedBenefitPlanServiceCost", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/PensionPlanandOtherPostretirementBenefitsComponentsofNetPeriodicBenefitCostDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DepreciationDepletionAndAmortization": { "auth_ref": [ "r104", "r164" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows": { "order": 1.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 }, "http://www.otpco.com/role/ConsolidatedStatementsofIncome": { "order": 6.0, "parentTag": "us-gaap_CostsAndExpenses", "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://www.otpco.com/role/ConsolidatedStatementsofCashFlows", "http://www.otpco.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_DisaggregationOfRevenueLineItems": { "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": "Disaggregation of Revenue [Line Items]", "terseLabel": "Disaggregation of Revenue [Line Items]" } } }, "localname": "DisaggregationOfRevenueLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/RevenueDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DisaggregationOfRevenueTable": { "auth_ref": [ "r262", "r264", "r265", "r266", "r267", "r268", "r269", "r270" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of information about disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.", "label": "Disaggregation of Revenue [Table]", "terseLabel": "Disaggregation of Revenue [Table]" } } }, "localname": "DisaggregationOfRevenueTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/RevenueDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DisaggregationOfRevenueTableTextBlock": { "auth_ref": [ "r262" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.", "label": "Disaggregation of Revenue [Table Text Block]", "terseLabel": "Disaggregation of Revenue" } } }, "localname": "DisaggregationOfRevenueTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/RevenueTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock": { "auth_ref": [ "r388" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for share-based payment arrangement.", "label": "Share-based Payment Arrangement [Text Block]", "terseLabel": "Share-Based Payments" } } }, "localname": "DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ShareBasedPayments" ], "xbrltype": "textBlockItemType" }, "us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Share-based Payment Arrangement [Abstract]" } } }, "localname": "DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_DisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock": { "auth_ref": [ "r364", "r379" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of share-based payment arrangement.", "label": "Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]", "terseLabel": "Schedule of Share-based Compensation Arrangements by Share-based Payment Award" } } }, "localname": "DisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ShareBasedPaymentsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_DividendsCommonStockCash": { "auth_ref": [ "r251" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.", "label": "Dividends, Common Stock, Cash", "negatedLabel": "Common Dividends" } } }, "localname": "DividendsCommonStockCash", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofShareholdersEquity" ], "xbrltype": "monetaryItemType" }, "us-gaap_EarningsPerShareAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Earnings Per Share [Abstract]" } } }, "localname": "EarningsPerShareAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_EarningsPerShareBasic": { "auth_ref": [ "r87", "r120", "r121", "r122", "r123", "r124", "r129", "r131", "r137", "r138", "r139", "r143", "r144", "r492", "r509" ], "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 (in dollars per share)" } } }, "localname": "EarningsPerShareBasic", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "perShareItemType" }, "us-gaap_EarningsPerShareBasicAndDilutedAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Earnings Per Share, Basic and Diluted [Abstract]", "terseLabel": "Earnings Per Share:" } } }, "localname": "EarningsPerShareBasicAndDilutedAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "stringItemType" }, "us-gaap_EarningsPerShareDiluted": { "auth_ref": [ "r87", "r120", "r121", "r122", "r123", "r124", "r131", "r137", "r138", "r139", "r143", "r144", "r492", "r509" ], "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 (in dollars per share)" } } }, "localname": "EarningsPerShareDiluted", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "perShareItemType" }, "us-gaap_EarningsPerShareDilutedLineItems": { "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": "Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]", "terseLabel": "Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]" } } }, "localname": "EarningsPerShareDilutedLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/EarningsPerShareDetails" ], "xbrltype": "stringItemType" }, "us-gaap_EarningsPerShareTextBlock": { "auth_ref": [ "r140", "r141", "r142", "r145" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for earnings per share.", "label": "Earnings Per Share [Text Block]", "terseLabel": "Earnings Per Share" } } }, "localname": "EarningsPerShareTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/EarningsPerShare" ], "xbrltype": "textBlockItemType" }, "us-gaap_EffectiveIncomeTaxRateContinuingOperations": { "auth_ref": [ "r394" ], "calculation": { "http://www.otpco.com/role/IncomeTaxesEffectiveIncomeTaxRateDetails": { "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": "Effective Tax Rate" } } }, "localname": "EffectiveIncomeTaxRateContinuingOperations", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/IncomeTaxesEffectiveIncomeTaxRateDetails" ], "xbrltype": "percentItemType" }, "us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Effective Income Tax Rate Reconciliation, Percent [Abstract]", "terseLabel": "Increases (Decreases) in Tax from:" } } }, "localname": "EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/IncomeTaxesEffectiveIncomeTaxRateDetails" ], "xbrltype": "stringItemType" }, "us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate": { "auth_ref": [ "r394", "r406" ], "calculation": { "http://www.otpco.com/role/IncomeTaxesEffectiveIncomeTaxRateDetails": { "order": 2.0, "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://www.otpco.com/role/IncomeTaxesEffectiveIncomeTaxRateDetails" ], "xbrltype": "percentItemType" }, "us-gaap_EffectiveIncomeTaxRateReconciliationDeductionsEmployeeStockOwnershipPlanDividends": { "auth_ref": [ "r394", "r406" ], "calculation": { "http://www.otpco.com/role/IncomeTaxesEffectiveIncomeTaxRateDetails": { "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 deduction for dividend paid to employee stock ownership plan.", "label": "Effective Income Tax Rate Reconciliation, Deduction, Employee Stock Ownership Plan Dividend, Percent", "negatedTerseLabel": "Excess Tax Deduction on Stock Awards" } } }, "localname": "EffectiveIncomeTaxRateReconciliationDeductionsEmployeeStockOwnershipPlanDividends", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/IncomeTaxesEffectiveIncomeTaxRateDetails" ], "xbrltype": "percentItemType" }, "us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments": { "auth_ref": [ "r394", "r406" ], "calculation": { "http://www.otpco.com/role/IncomeTaxesEffectiveIncomeTaxRateDetails": { "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 attributable to other adjustments.", "label": "Effective Income Tax Rate Reconciliation, Other Adjustments, Percent", "terseLabel": "Other, Net" } } }, "localname": "EffectiveIncomeTaxRateReconciliationOtherAdjustments", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/IncomeTaxesEffectiveIncomeTaxRateDetails" ], "xbrltype": "percentItemType" }, "us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes": { "auth_ref": [ "r394", "r406" ], "calculation": { "http://www.otpco.com/role/IncomeTaxesEffectiveIncomeTaxRateDetails": { "order": 1.0, "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", "terseLabel": "State Taxes on Income, Net of Federal Tax" } } }, "localname": "EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/IncomeTaxesEffectiveIncomeTaxRateDetails" ], "xbrltype": "percentItemType" }, "us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsOther": { "auth_ref": [ "r394", "r406" ], "calculation": { "http://www.otpco.com/role/IncomeTaxesEffectiveIncomeTaxRateDetails": { "order": 9.0, "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 tax credits.", "label": "Effective Income Tax Rate Reconciliation, Tax Credit, Other, Percent", "negatedTerseLabel": "North Dakota Wind Tax Credit Amortization, Net of Federal Tax" } } }, "localname": "EffectiveIncomeTaxRateReconciliationTaxCreditsOther", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/IncomeTaxesEffectiveIncomeTaxRateDetails" ], "xbrltype": "percentItemType" }, "us-gaap_ElectricTransmissionMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "System used for the electrical transmission of the bulk transport of high voltage power, typically over longer distances, between generating plants and distribution systems. Typically comprised of towers, overhead conductors, underground conduits, roads and trails.", "label": "Electric Transmission [Member]", "terseLabel": "Transmission" } } }, "localname": "ElectricTransmissionMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/RevenueDetails" ], "xbrltype": "domainItemType" }, "us-gaap_EmployeeRelatedLiabilitiesCurrent": { "auth_ref": [ "r49" ], "calculation": { "http://www.otpco.com/role/ConsolidatedBalanceSheets": { "order": 6.0, "parentTag": "us-gaap_LiabilitiesCurrent", "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 Salaries and Wages" } } }, "localname": "EmployeeRelatedLiabilitiesCurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_EmployeeStockOptionMember": { "auth_ref": [ "r377" ], "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": "Employee Stock Purchase Plan Shares and Other" } } }, "localname": "EmployeeStockOptionMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/EarningsPerShareDetails" ], "xbrltype": "domainItemType" }, "us-gaap_EquityAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Equity [Abstract]" } } }, "localname": "EquityAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_EquityComponentDomain": { "auth_ref": [ "r115", "r116", "r117", "r119", "r125", "r127", "r146", "r208", "r244", "r251", "r380", "r381", "r382", "r399", "r400", "r437", "r438", "r439", "r440", "r441", "r442", "r516", "r517", "r518" ], "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://www.otpco.com/role/ConsolidatedStatementsofShareholdersEquity" ], "xbrltype": "domainItemType" }, "us-gaap_EquitySecuritiesFvNi": { "auth_ref": [ "r430" ], "calculation": { "http://www.otpco.com/role/FairValueMeasurementsScheduleofFairValueMeasurementsRecurringandNonrecurringDetails": { "order": 2.0, "parentTag": "us-gaap_AssetsFairValueDisclosure", "weight": 1.0 }, "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofInvestmentsDetails": { "order": 4.0, "parentTag": "us-gaap_Investments", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).", "label": "Equity Securities, FV-NI", "terseLabel": "Mutual Funds" } } }, "localname": "EquitySecuritiesFvNi", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/FairValueMeasurementsScheduleofFairValueMeasurementsRecurringandNonrecurringDetails", "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofInvestmentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EstimateOfFairValueFairValueDisclosureMember": { "auth_ref": [ "r432" ], "lang": { "en-us": { "role": { "documentation": "Measured as an estimate of fair value.", "label": "Estimate of Fair Value Measurement [Member]", "terseLabel": "Fair Value" } } }, "localname": "EstimateOfFairValueFairValueDisclosureMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/FairValueMeasurementsScheduleofFairValueofAssetsandLiabilitiesDetails" ], "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://www.otpco.com/role/FairValueMeasurementsScheduleofFairValueMeasurementsRecurringandNonrecurringDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable": { "auth_ref": [ "r420", "r421", "r422", "r427" ], "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, Recurring and Nonrecurring [Table]" } } }, "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/FairValueMeasurementsScheduleofFairValueMeasurementsRecurringandNonrecurringDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock": { "auth_ref": [ "r420", "r421", "r422", "r426", "r427" ], "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": "Schedule of Fair Value Measurements, Recurring and Nonrecurring" } } }, "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/FairValueMeasurementsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems": { "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, Balance Sheet Grouping, Financial Statement Captions [Line Items]", "terseLabel": "Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]" } } }, "localname": "FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/FairValueMeasurementsScheduleofFairValueofAssetsandLiabilitiesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueByBalanceSheetGroupingTable": { "auth_ref": [ "r420", "r433", "r434" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of information about the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities.", "label": "Fair Value, by Balance Sheet Grouping [Table]", "terseLabel": "Fair Value, by Balance Sheet Grouping [Table]" } } }, "localname": "FairValueByBalanceSheetGroupingTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/FairValueMeasurementsScheduleofFairValueofAssetsandLiabilitiesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueByBalanceSheetGroupingTextBlock": { "auth_ref": [ "r420", "r433" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities.", "label": "Fair Value, by Balance Sheet Grouping [Table Text Block]", "terseLabel": "Schedule of Fair Value of Assets and Liabilities" } } }, "localname": "FairValueByBalanceSheetGroupingTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/FairValueMeasurementsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_FairValueByFairValueHierarchyLevelAxis": { "auth_ref": [ "r299", "r301", "r302", "r303", "r304", "r305", "r306", "r344", "r421", "r452", "r453", "r454" ], "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://www.otpco.com/role/FairValueMeasurementsScheduleofFairValueMeasurementsRecurringandNonrecurringDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueByMeasurementBasisAxis": { "auth_ref": [ "r420", "r428" ], "lang": { "en-us": { "role": { "documentation": "Information by measurement basis.", "label": "Measurement Basis [Axis]", "terseLabel": "Measurement Basis [Axis]" } } }, "localname": "FairValueByMeasurementBasisAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/FairValueMeasurementsScheduleofFairValueofAssetsandLiabilitiesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueByMeasurementFrequencyAxis": { "auth_ref": [ "r420", "r421", "r423", "r424", "r429" ], "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://www.otpco.com/role/FairValueMeasurementsScheduleofFairValueMeasurementsRecurringandNonrecurringDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueDisclosureItemAmountsDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Measurement basis, for example, but not limited to, reported value, fair value, portion at fair value, portion at other than fair value.", "label": "Fair Value Measurement [Domain]", "terseLabel": "Fair Value Measurement [Domain]" } } }, "localname": "FairValueDisclosureItemAmountsDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/FairValueMeasurementsScheduleofFairValueofAssetsandLiabilitiesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueDisclosuresAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Fair Value Disclosures [Abstract]" } } }, "localname": "FairValueDisclosuresAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_FairValueDisclosuresTextBlock": { "auth_ref": [ "r425" ], "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]", "terseLabel": "Fair Value Measurements" } } }, "localname": "FairValueDisclosuresTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/FairValueMeasurements" ], "xbrltype": "textBlockItemType" }, "us-gaap_FairValueInputsLevel1Member": { "auth_ref": [ "r299", "r301", "r306", "r344", "r421", "r452" ], "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://www.otpco.com/role/FairValueMeasurementsScheduleofFairValueMeasurementsRecurringandNonrecurringDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueInputsLevel2Member": { "auth_ref": [ "r299", "r301", "r306", "r344", "r421", "r453" ], "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://www.otpco.com/role/FairValueMeasurementsScheduleofFairValueMeasurementsRecurringandNonrecurringDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueMeasurementFrequencyDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Measurement frequency.", "label": "Measurement Frequency [Domain]", "terseLabel": "Measurement Frequency [Domain]" } } }, "localname": "FairValueMeasurementFrequencyDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/FairValueMeasurementsScheduleofFairValueMeasurementsRecurringandNonrecurringDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueMeasurementsFairValueHierarchyDomain": { "auth_ref": [ "r299", "r301", "r302", "r303", "r304", "r305", "r306", "r344", "r452", "r453", "r454" ], "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://www.otpco.com/role/FairValueMeasurementsScheduleofFairValueMeasurementsRecurringandNonrecurringDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueMeasurementsRecurringMember": { "auth_ref": [ "r425", "r429" ], "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, Recurring" } } }, "localname": "FairValueMeasurementsRecurringMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/FairValueMeasurementsScheduleofFairValueMeasurementsRecurringandNonrecurringDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FinancialInstrumentAxis": { "auth_ref": [ "r199", "r200", "r210", "r213", "r214", "r215", "r216", "r218", "r219", "r220", "r221", "r449", "r450", "r451", "r452", "r453", "r454", "r455", "r456", "r457", "r458", "r459", "r460", "r461", "r462", "r463", "r464", "r465", "r466", "r467", "r468", "r469", "r470", "r471", "r472", "r473", "r474", "r475", "r476", "r477", "r478" ], "lang": { "en-us": { "role": { "documentation": "Information by type of financial instrument.", "label": "Financial Instrument [Axis]", "terseLabel": "Financial Instrument [Axis]" } } }, "localname": "FinancialInstrumentAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/FairValueMeasurementsScheduleofFairValueMeasurementsRecurringandNonrecurringDetails" ], "xbrltype": "stringItemType" }, "us-gaap_Goodwill": { "auth_ref": [ "r223", "r224", "r482" ], "calculation": { "http://www.otpco.com/role/ConsolidatedBalanceSheets": { "order": 1.0, "parentTag": "us-gaap_AssetsNoncurrent", "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", "terseLabel": "Goodwill" } } }, "localname": "Goodwill", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest": { "auth_ref": [ "r84", "r169", "r175", "r179", "r182", "r185", "r481", "r489", "r493", "r510" ], "calculation": { "http://www.otpco.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, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.", "label": "Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest", "totalLabel": "Income Before Income Taxes" } } }, "localname": "IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "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_IncomeTaxCreditsAndAdjustments": { "auth_ref": [ "r105" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows": { "order": 8.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "A credit or adjustment for government or taxing authority authorized decrease in taxes owed as a result of meeting certain tax policy conditions.", "label": "Income Tax Credits and Adjustments", "terseLabel": "Deferred Tax Credits" } } }, "localname": "IncomeTaxCreditsAndAdjustments", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxDisclosureAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Income Tax Disclosure [Abstract]" } } }, "localname": "IncomeTaxDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_IncomeTaxDisclosureTextBlock": { "auth_ref": [ "r395", "r396", "r397", "r401", "r407", "r409", "r410", "r411" ], "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]", "terseLabel": "Income Taxes" } } }, "localname": "IncomeTaxDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/IncomeTaxes" ], "xbrltype": "textBlockItemType" }, "us-gaap_IncomeTaxExpenseBenefit": { "auth_ref": [ "r111", "r126", "r127", "r167", "r393", "r402", "r408", "r511" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofIncome": { "order": 1.0, "parentTag": "us-gaap_NetIncomeLoss", "weight": -1.0 } }, "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)", "verboseLabel": "Income Tax Expense" } } }, "localname": "IncomeTaxExpenseBenefit", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities": { "auth_ref": [ "r103" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows": { "order": 7.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The increase (decrease) during the reporting period in the amounts payable to vendors for goods and services received and the amount of obligations and expenses incurred but not paid.", "label": "Increase (Decrease) in Accounts Payable and Accrued Liabilities", "terseLabel": "Change in Payables and Other Current Liabilities" } } }, "localname": "IncreaseDecreaseInAccountsPayableAndAccruedLiabilities", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction": { "auth_ref": [ "r103" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows": { "order": 3.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The increase (decrease) during the reporting period in the capitalized cost of equity (based on assumed rate of return) and / or borrowed funds (based on interest rate) used to finance construction of regulated assets, which is expected to be recovered through rate adjustments. As a result of this capitalization, net income is increased. This element pertains to certain regulated industries, such as public utilities.", "label": "Increase (Decrease) in Allowance for Equity Funds Used During Construction", "negatedLabel": "Allowance for Equity/Other Funds Used During Construction" } } }, "localname": "IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInInventories": { "auth_ref": [ "r103" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows": { "order": 12.0, "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": "Change in Inventories" } } }, "localname": "IncreaseDecreaseInInventories", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInOperatingCapitalAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Increase (Decrease) in Operating Capital [Abstract]", "terseLabel": "Cash (Used for) Provided by Current Assets and Current Liabilities:" } } }, "localname": "IncreaseDecreaseInOperatingCapitalAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_IncreaseDecreaseInOtherOperatingAssets": { "auth_ref": [ "r103" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows": { "order": 4.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of increase (decrease) in operating assets classified as other.", "label": "Increase (Decrease) in Other Operating Assets", "negatedLabel": "Change in Other Current Assets" } } }, "localname": "IncreaseDecreaseInOtherOperatingAssets", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInReceivables": { "auth_ref": [ "r103" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows": { "order": 6.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The increase (decrease) during the reporting period in the total amount due within one year (or one operating cycle) from all parties, associated with underlying transactions that are classified as operating activities.", "label": "Increase (Decrease) in Receivables", "negatedLabel": "Change in Receivables" } } }, "localname": "IncreaseDecreaseInReceivables", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.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://www.otpco.com/role/ConsolidatedStatementsofShareholdersEquity" ], "xbrltype": "stringItemType" }, "us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements": { "auth_ref": [ "r132", "r133", "r134", "r139" ], "calculation": { "http://www.otpco.com/role/EarningsPerShareDetails": { "order": 1.0, "parentTag": "us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment", "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": "Effect of Dilutive Securities (in shares)" } } }, "localname": "IncrementalCommonSharesAttributableToShareBasedPaymentArrangements", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/EarningsPerShareDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_IntangibleAssetsNetExcludingGoodwill": { "auth_ref": [ "r226", "r227" ], "calculation": { "http://www.otpco.com/role/ConsolidatedBalanceSheets": { "order": 5.0, "parentTag": "us-gaap_AssetsNoncurrent", "weight": 1.0 } }, "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": "Intangible Assets, net of accumulated amortization" } } }, "localname": "IntangibleAssetsNetExcludingGoodwill", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestAndDebtExpense": { "auth_ref": [ "r444" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofIncome": { "order": 1.0, "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Interest and debt related expenses associated with nonoperating financing activities of the entity.", "label": "Interest and Debt Expense", "terseLabel": "Interest Charges" } } }, "localname": "InterestAndDebtExpense", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_InventoryFinishedGoodsNetOfReserves": { "auth_ref": [ "r36", "r222" ], "calculation": { "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofInventoriesDetails": { "order": 2.0, "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://www.otpco.com/role/SelectBalanceSheetInformationScheduleofInventoriesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InventoryNet": { "auth_ref": [ "r3", "r61" ], "calculation": { "http://www.otpco.com/role/ConsolidatedBalanceSheets": { "order": 4.0, "parentTag": "us-gaap_AssetsCurrent", "weight": 1.0 }, "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofInventoriesDetails": { "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", "terseLabel": "Inventories", "totalLabel": "Inventories" } } }, "localname": "InventoryNet", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets", "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofInventoriesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InventoryRawMaterialsAndSupplies": { "auth_ref": [ "r60" ], "calculation": { "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofInventoriesDetails": { "order": 1.0, "parentTag": "us-gaap_InventoryNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Gross amount of unprocessed materials to be used in manufacturing or production process and supplies that will be consumed.", "label": "Inventory, Raw Materials and Supplies, Gross", "terseLabel": "Raw Material, Fuel and Supplies" } } }, "localname": "InventoryRawMaterialsAndSupplies", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofInventoriesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InventoryWorkInProcess": { "auth_ref": [ "r59" ], "calculation": { "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofInventoriesDetails": { "order": 3.0, "parentTag": "us-gaap_InventoryNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.", "label": "Inventory, Work in Process, Gross", "terseLabel": "Work in Process" } } }, "localname": "InventoryWorkInProcess", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofInventoriesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InvestmentTableTextBlock": { "auth_ref": [ "r202", "r203", "r205", "r207" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of investment.", "label": "Investment [Table Text Block]", "terseLabel": "Schedule of Investments" } } }, "localname": "InvestmentTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/SelectBalanceSheetInformationTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_Investments": { "auth_ref": [ "r506" ], "calculation": { "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofInvestmentsDetails": { "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 investments.", "label": "Investments", "totalLabel": "Total Investments" } } }, "localname": "Investments", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofInvestmentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LettersOfCreditOutstandingAmount": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.", "label": "Letters of Credit Outstanding, Amount", "terseLabel": "Letters of Credit" } } }, "localname": "LettersOfCreditOutstandingAmount", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ShortTermandLongTermBorrowingsLinesofCreditDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LiabilitiesAndStockholdersEquity": { "auth_ref": [ "r35", "r110", "r204", "r435", "r486", "r502" ], "calculation": { "http://www.otpco.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 Shareholders' Equity" } } }, "localname": "LiabilitiesAndStockholdersEquity", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_LiabilitiesAndStockholdersEquityAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Liabilities and Equity [Abstract]", "terseLabel": "Liabilities and Shareholders' Equity" } } }, "localname": "LiabilitiesAndStockholdersEquityAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "stringItemType" }, "us-gaap_LiabilitiesCurrent": { "auth_ref": [ "r50", "r110", "r204", "r415", "r418", "r419", "r435" ], "calculation": { "http://www.otpco.com/role/ConsolidatedBalanceSheets": { "order": 3.0, "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity", "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://www.otpco.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://www.otpco.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "stringItemType" }, "us-gaap_LiabilitiesNoncurrent": { "auth_ref": [ "r10", "r11", "r12", "r24", "r25", "r110", "r204", "r415", "r418", "r419", "r435" ], "calculation": { "http://www.otpco.com/role/ConsolidatedBalanceSheets": { "order": 2.0, "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of obligation due after one year or beyond the normal operating cycle, if longer.", "label": "Liabilities, Noncurrent", "totalLabel": "Total Noncurrent Liabilities and Deferred Credits" } } }, "localname": "LiabilitiesNoncurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_LiabilitiesNoncurrentAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Liabilities, Noncurrent [Abstract]", "terseLabel": "Noncurrent Liabilities and Deferred Credits" } } }, "localname": "LiabilitiesNoncurrentAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "stringItemType" }, "us-gaap_LifeInsuranceCorporateOrBankOwnedAmount": { "auth_ref": [ "r41", "r206" ], "calculation": { "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofInvestmentsDetails": { "order": 1.0, "parentTag": "us-gaap_Investments", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "This item represents the amount that could be realized under a life insurance contract or contracts owned by the Entity as of the date of the statement of financial position. Such Entity-owned life insurance policies are commonly known as corporate-owned life insurance (COLI) or bank-owned life insurance (BOLI).", "label": "Life Insurance, Corporate or Bank Owned, Amount", "terseLabel": "Corporate-Owned Life Insurance Policies" } } }, "localname": "LifeInsuranceCorporateOrBankOwnedAmount", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofInvestmentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LineOfCreditFacilityLineItems": { "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": "Line of Credit Facility [Line Items]", "terseLabel": "Line of Credit Facility [Line Items]" } } }, "localname": "LineOfCreditFacilityLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ShortTermandLongTermBorrowingsLinesofCreditDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity": { "auth_ref": [ "r47" ], "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 Limit" } } }, "localname": "LineOfCreditFacilityMaximumBorrowingCapacity", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ShortTermandLongTermBorrowingsLinesofCreditDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity": { "auth_ref": [ "r47" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).", "label": "Line of Credit Facility, Remaining Borrowing Capacity", "terseLabel": "Amount Available" } } }, "localname": "LineOfCreditFacilityRemainingBorrowingCapacity", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ShortTermandLongTermBorrowingsLinesofCreditDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LineOfCreditFacilityTable": { "auth_ref": [ "r47", "r112" ], "lang": { "en-us": { "role": { "documentation": "A table or schedule providing information pertaining to short-term or long-term contractual arrangements with lenders, including letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line.", "label": "Line of Credit Facility [Table]", "terseLabel": "Line of Credit Facility [Table]" } } }, "localname": "LineOfCreditFacilityTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ShortTermandLongTermBorrowingsLinesofCreditDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LongTermDebt": { "auth_ref": [ "r24", "r239", "r485", "r499" ], "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", "terseLabel": "Long-term debt" } } }, "localname": "LongTermDebt", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ShortTermandLongTermBorrowingsBreakdownofOutstandingLongtermDebtDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LongTermDebtCurrent": { "auth_ref": [ "r48" ], "calculation": { "http://www.otpco.com/role/ConsolidatedBalanceSheets": { "order": 7.0, "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 Maturities Net of Unamortized Debt Issuance Costs", "verboseLabel": "Current Maturities of Long-Term Debt" } } }, "localname": "LongTermDebtCurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets", "http://www.otpco.com/role/ShortTermandLongTermBorrowingsBreakdownofOutstandingLongtermDebtDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LongTermDebtFairValue": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.", "label": "Long-term Debt, Fair Value", "negatedLabel": "Long-Term Debt" } } }, "localname": "LongTermDebtFairValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/FairValueMeasurementsScheduleofFairValueofAssetsandLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LongTermDebtNoncurrent": { "auth_ref": [ "r52" ], "calculation": { "http://www.otpco.com/role/ConsolidatedBalanceSheets": { "order": 1.0, "parentTag": "us-gaap_CapitalizationLongtermDebtAndEquity", "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": "Total Long-Term Debt Net of Unamortized Debt Issuance Costs", "verboseLabel": "Long-Term Debt, net of current maturities" } } }, "localname": "LongTermDebtNoncurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets", "http://www.otpco.com/role/ShortTermandLongTermBorrowingsBreakdownofOutstandingLongtermDebtDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LongTermInvestments": { "auth_ref": [ "r41" ], "calculation": { "http://www.otpco.com/role/ConsolidatedBalanceSheets": { "order": 2.0, "parentTag": "us-gaap_AssetsNoncurrent", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle).", "label": "Long-term Investments", "terseLabel": "Investments" } } }, "localname": "LongTermInvestments", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_MoneyMarketFundsAtCarryingValue": { "auth_ref": [], "calculation": { "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofInvestmentsDetails": { "order": 3.0, "parentTag": "us-gaap_Investments", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Investment in short-term money-market instruments (such as commercial paper, banker's acceptances, repurchase agreements, government securities, certificates of deposit, and so forth) which are highly liquid (that is, readily convertible to known amounts of cash) and so near their maturity that they present an insignificant risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify as cash equivalents by definition. Original maturity means an original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months.", "label": "Money Market Funds, at Carrying Value", "terseLabel": "Money Market Funds" } } }, "localname": "MoneyMarketFundsAtCarryingValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofInvestmentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetCashProvidedByUsedInFinancingActivities": { "auth_ref": [ "r100" ], "calculation": { "http://www.otpco.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 Financing Activities" } } }, "localname": "NetCashProvidedByUsedInFinancingActivities", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.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": "Financing Activities" } } }, "localname": "NetCashProvidedByUsedInFinancingActivitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_NetCashProvidedByUsedInInvestingActivities": { "auth_ref": [ "r100" ], "calculation": { "http://www.otpco.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://www.otpco.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": "Investing Activities" } } }, "localname": "NetCashProvidedByUsedInInvestingActivitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_NetCashProvidedByUsedInOperatingActivities": { "auth_ref": [ "r100", "r102", "r105" ], "calculation": { "http://www.otpco.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://www.otpco.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": "Operating Activities" } } }, "localname": "NetCashProvidedByUsedInOperatingActivitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_NetIncomeLoss": { "auth_ref": [ "r1", "r77", "r80", "r85", "r105", "r110", "r118", "r120", "r121", "r122", "r123", "r126", "r127", "r136", "r169", "r175", "r179", "r182", "r185", "r204", "r435", "r490", "r507" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows": { "order": 15.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 }, "http://www.otpco.com/role/ConsolidatedStatementsofComprehensiveIncome": { "order": 2.0, "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax", "weight": 1.0 }, "http://www.otpco.com/role/ConsolidatedStatementsofIncome": { "order": null, "parentTag": null, "root": true, "weight": null } }, "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", "totalLabel": "Net Income", "verboseLabel": "Net Income (Loss)" } } }, "localname": "NetIncomeLoss", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows", "http://www.otpco.com/role/ConsolidatedStatementsofComprehensiveIncome", "http://www.otpco.com/role/ConsolidatedStatementsofIncome", "http://www.otpco.com/role/ConsolidatedStatementsofShareholdersEquity", "http://www.otpco.com/role/SegmentInformationBusinessSegmentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent": { "auth_ref": [ "r276" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofIncome": { "order": 3.0, "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of expense (reversal of expense) for net periodic benefit cost components, excluding service cost component, of defined benefit plan. Amount includes, but is not limited to, interest cost, expected (return) loss on plan asset, amortization of prior service cost (credit), amortization of (gain) loss, amortization of transition (asset) obligation, settlement (gain) loss, curtailment (gain) loss and certain termination benefits.", "label": "Net Periodic Defined Benefits Expense (Reversal of Expense), Excluding Service Cost Component", "terseLabel": "Nonservice Cost Components of Postretirement Benefits" } } }, "localname": "NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_NoncashInvestingAndFinancingItemsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Noncash Investing and Financing Items [Abstract]", "terseLabel": "Supplemental Disclosure of Noncash Investing Activities" } } }, "localname": "NoncashInvestingAndFinancingItemsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_NonoperatingIncomeExpenseAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Nonoperating Income (Expense) [Abstract]", "terseLabel": "Other Income and Expense" } } }, "localname": "NonoperatingIncomeExpenseAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "stringItemType" }, "us-gaap_NumberOfOperatingSegments": { "auth_ref": [ "r157" ], "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 operating segments" } } }, "localname": "NumberOfOperatingSegments", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/SummaryofSignificantAccountingPoliciesNarrativeDetails" ], "xbrltype": "integerItemType" }, "us-gaap_NumberOfReportableSegments": { "auth_ref": [ "r157" ], "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://www.otpco.com/role/SegmentInformationNarrativeDetails" ], "xbrltype": "integerItemType" }, "us-gaap_OperatingIncomeLoss": { "auth_ref": [ "r169", "r175", "r179", "r182", "r185" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofIncome": { "order": 2.0, "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest", "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" } } }, "localname": "OperatingIncomeLoss", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingSegmentsMember": { "auth_ref": [ "r174", "r175", "r176", "r177", "r179", "r185" ], "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://www.otpco.com/role/RevenueDetails", "http://www.otpco.com/role/SegmentInformationBusinessSegmentsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Organization, Consolidation and Presentation of Financial Statements [Abstract]" } } }, "localname": "OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_OtherAssetsCurrent": { "auth_ref": [ "r62" ], "calculation": { "http://www.otpco.com/role/ConsolidatedBalanceSheets": { "order": 3.0, "parentTag": "us-gaap_AssetsCurrent", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of current assets classified as other.", "label": "Other Assets, Current", "terseLabel": "Other Current Assets" } } }, "localname": "OtherAssetsCurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherAssetsNoncurrent": { "auth_ref": [ "r45" ], "calculation": { "http://www.otpco.com/role/ConsolidatedBalanceSheets": { "order": 3.0, "parentTag": "us-gaap_AssetsNoncurrent", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of noncurrent assets classified as other.", "label": "Other Assets, Noncurrent", "terseLabel": "Other Noncurrent Assets" } } }, "localname": "OtherAssetsNoncurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherCommitmentsLineItems": { "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": "Other Commitments [Line Items]", "terseLabel": "Other Commitments [Line Items]" } } }, "localname": "OtherCommitmentsLineItems", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/CommitmentsandContingenciesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_OtherCommitmentsTable": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Disclosure of information about obligations resulting from other commitments.", "label": "Other Commitments [Table]", "terseLabel": "Other Commitments [Table]" } } }, "localname": "OtherCommitmentsTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/CommitmentsandContingenciesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_OtherComprehensiveIncomeAvailableForSaleSecuritiesAdjustmentNetOfTaxPeriodIncreaseDecreaseAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax [Abstract]", "terseLabel": "Unrealized Gain (Loss) on Available-for-Sale Securities:" } } }, "localname": "OtherComprehensiveIncomeAvailableForSaleSecuritiesAdjustmentNetOfTaxPeriodIncreaseDecreaseAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofComprehensiveIncome" ], "xbrltype": "stringItemType" }, "us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent": { "auth_ref": [ "r412", "r413", "r416" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofComprehensiveIncome": { "order": 2.0, "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount after tax and reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities, attributable to parent entity. Excludes amounts related to other than temporary impairment (OTTI) loss.", "label": "Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent", "totalLabel": "Available-for-Sale Securities, net of tax" } } }, "localname": "OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofComprehensiveIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent": { "auth_ref": [ "r412", "r413", "r416" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofComprehensiveIncome": { "order": 2.0, "parentTag": "us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of tax expense (benefit), after reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities, attributable to parent entity. Excludes amounts related to other than temporary impairment (OTTI) loss.", "label": "Other Comprehensive Income (Loss), Available-for-sale Securities, Tax, Portion Attributable to Parent", "negatedLabel": "Income Tax (Expense) Benefit" } } }, "localname": "OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofComprehensiveIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPortionAttributableToParent": { "auth_ref": [ "r412", "r413", "r416" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofComprehensiveIncome": { "order": 2.0, "parentTag": "us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount, before tax, after reclassification adjustment, of (increase) decrease in accumulated other comprehensive (income) loss for defined benefit plan, attributable to parent entity.", "label": "Other Comprehensive (Income) Loss, Defined Benefit Plan, before Tax, after Reclassification Adjustment, Attributable to Parent", "negatedTerseLabel": "Amortization of Unrecognized Postretirement Benefit Losses and Costs" } } }, "localname": "OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPortionAttributableToParent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofComprehensiveIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecreaseAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax [Abstract]", "terseLabel": "Pension and Postretirement Benefit Plans:" } } }, "localname": "OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecreaseAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofComprehensiveIncome" ], "xbrltype": "stringItemType" }, "us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent": { "auth_ref": [ "r69", "r71", "r412", "r416" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofComprehensiveIncome": { "order": 1.0, "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", "negatedTotalLabel": "Pension and Postretirement Benefit Plan, net of tax" } } }, "localname": "OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofComprehensiveIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent": { "auth_ref": [ "r412", "r413", "r416" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofComprehensiveIncome": { "order": 1.0, "parentTag": "us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount, after reclassification adjustment, of tax (expense) benefit for (increase) decrease in accumulated other comprehensive income for defined benefit plan, attributable to parent.", "label": "Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax, Attributable to Parent", "terseLabel": "Income Tax Expense" } } }, "localname": "OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofComprehensiveIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent": { "auth_ref": [ "r78", "r81", "r412", "r413", "r416" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofComprehensiveIncome": { "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", "totalLabel": "Total Other Comprehensive Income", "verboseLabel": "Other Comprehensive Income" } } }, "localname": "OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofComprehensiveIncome", "http://www.otpco.com/role/ConsolidatedStatementsofShareholdersEquity" ], "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):" } } }, "localname": "OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofComprehensiveIncome" ], "xbrltype": "stringItemType" }, "us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax": { "auth_ref": [ "r71", "r74", "r75", "r201" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofComprehensiveIncome": { "order": 1.0, "parentTag": "us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount before tax of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.", "label": "Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax", "negatedLabel": "Reversal of Previously Recognized Losses (Gains) Realized on Sale of Investments and Included in Other Income (Expense) During Period" } } }, "localname": "OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofComprehensiveIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax": { "auth_ref": [ "r65", "r71", "r201" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofComprehensiveIncome": { "order": 3.0, "parentTag": "us-gaap_OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount, before tax and adjustment, of unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale.", "label": "OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment and Tax", "terseLabel": "Unrealized Gains (Losses) Arising During Period" } } }, "localname": "OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofComprehensiveIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherCostAndExpenseOperating": { "auth_ref": [ "r90" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofIncome": { "order": 7.0, "parentTag": "us-gaap_CostsAndExpenses", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The total amount of other operating cost and expense items that are associated with the entity's normal revenue producing operation.", "label": "Other Cost and Expense, Operating", "terseLabel": "Other Nonelectric Expenses" } } }, "localname": "OtherCostAndExpenseOperating", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherInvestments": { "auth_ref": [ "r41", "r505" ], "calculation": { "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofInvestmentsDetails": { "order": 5.0, "parentTag": "us-gaap_Investments", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of investments classified as other.", "label": "Other Investments", "terseLabel": "Other Investments" } } }, "localname": "OtherInvestments", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofInvestmentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherLiabilitiesCurrent": { "auth_ref": [ "r6", "r7", "r49" ], "calculation": { "http://www.otpco.com/role/ConsolidatedBalanceSheets": { "order": 4.0, "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", "terseLabel": "Other Current Liabilities" } } }, "localname": "OtherLiabilitiesCurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherLiabilitiesNoncurrent": { "auth_ref": [ "r53" ], "calculation": { "http://www.otpco.com/role/ConsolidatedBalanceSheets": { "order": 6.0, "parentTag": "us-gaap_LiabilitiesNoncurrent", "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 Noncurrent Liabilities" } } }, "localname": "OtherLiabilitiesNoncurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherNoncashIncomeExpense": { "auth_ref": [ "r105" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows": { "order": 14.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of income (expense) included in net income that results in no cash inflow (outflow), classified as other.", "label": "Other Noncash Income (Expense)", "negatedLabel": "Other\u2014Net" } } }, "localname": "OtherNoncashIncomeExpense", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherNonoperatingIncomeExpense": { "auth_ref": [ "r91" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofIncome": { "order": 4.0, "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of income (expense) related to nonoperating activities, classified as other.", "label": "Other Nonoperating Income (Expense)", "terseLabel": "Other Income (Expense)" } } }, "localname": "OtherNonoperatingIncomeExpense", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember": { "auth_ref": [ "r273", "r274", "r277", "r278", "r279", "r280", "r281", "r282", "r283", "r284", "r285", "r286", "r287", "r288", "r289", "r290", "r291", "r292", "r293", "r294", "r295", "r296", "r297", "r298", "r299", "r301", "r302", "r303", "r304", "r305", "r306", "r308", "r309", "r310", "r311", "r312", "r313", "r314", "r315", "r316", "r317", "r318", "r319", "r320", "r321", "r322", "r324", "r327", "r331", "r334", "r335", "r336", "r337", "r338", "r339", "r340", "r341", "r342", "r343", "r344", "r345", "r348", "r349", "r350", "r351", "r352", "r353" ], "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": "Other Postretirement Benefits Plan" } } }, "localname": "OtherPostretirementBenefitPlansDefinedBenefitMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/PensionPlanandOtherPostretirementBenefitsComponentsofNetPeriodicBenefitCostDetails" ], "xbrltype": "domainItemType" }, "us-gaap_OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent": { "auth_ref": [ "r26", "r274", "r275", "r297" ], "calculation": { "http://www.otpco.com/role/ConsolidatedBalanceSheets": { "order": 3.0, "parentTag": "us-gaap_LiabilitiesNoncurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of liability, recognized in statement of financial position, for defined benefit other postretirement plan, classified as noncurrent. Excludes pension plan.", "label": "Liability, Other Postretirement Defined Benefit Plan, Noncurrent", "terseLabel": "Other Postretirement Benefits Liability" } } }, "localname": "OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherReceivablesGrossCurrent": { "auth_ref": [], "calculation": { "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofReceivablesDetails": { "order": 1.0, "parentTag": "us-gaap_AccountsReceivableGross", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount, before allowance, of receivables classified as other, due within one year or the operating cycle, if longer.", "label": "Other Receivables, Gross, Current", "terseLabel": "Other" } } }, "localname": "OtherReceivablesGrossCurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofReceivablesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsForProceedsFromInvestments": { "auth_ref": [ "r113" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows": { "order": 1.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The net cash paid (received) associated with the acquisition or disposal of all investments, including securities and other assets.", "label": "Payments for (Proceeds from) Investments", "negatedLabel": "Cash Used for Investments and Other Assets" } } }, "localname": "PaymentsForProceedsFromInvestments", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsForRepurchaseOfCommonStock": { "auth_ref": [ "r96" ], "calculation": { "http://www.otpco.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": "Payments for Shares Withheld for Employee Tax Obligations" } } }, "localname": "PaymentsForRepurchaseOfCommonStock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsOfDebtIssuanceCosts": { "auth_ref": [ "r98" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows": { "order": 2.0, "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": "Short-Term and Long-Term Debt Issuance Expenses" } } }, "localname": "PaymentsOfDebtIssuanceCosts", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsOfDividends": { "auth_ref": [ "r96" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows": { "order": 7.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests.", "label": "Payments of Dividends", "negatedLabel": "Dividends Paid" } } }, "localname": "PaymentsOfDividends", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsOfStockIssuanceCosts": { "auth_ref": [ "r99" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows": { "order": 6.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The cash outflow for cost incurred directly with the issuance of an equity security.", "label": "Payments of Stock Issuance Costs", "negatedLabel": "Common Stock Issuance Expenses" } } }, "localname": "PaymentsOfStockIssuanceCosts", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsToAcquireProductiveAssets": { "auth_ref": [ "r93" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows": { "order": 3.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets.", "label": "Payments to Acquire Productive Assets", "negatedLabel": "Capital Expenditures" } } }, "localname": "PaymentsToAcquireProductiveAssets", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock": { "auth_ref": [ "r298", "r300", "r306", "r323", "r325", "r326", "r327", "r328", "r329", "r344", "r346", "r347", "r348", "r360" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for retirement benefits.", "label": "Retirement Benefits [Text Block]", "terseLabel": "Pension Plan and Other Postretirement Benefits" } } }, "localname": "PensionAndOtherPostretirementBenefitsDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/PensionPlanandOtherPostretirementBenefits" ], "xbrltype": "textBlockItemType" }, "us-gaap_PensionContributions": { "auth_ref": [ "r101" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows": { "order": 2.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of cash outflow for pension benefit. Includes, but is not limited to, employer contribution to fund plan asset and payment to retiree. Excludes other postretirement benefit.", "label": "Payment for Pension Benefits", "negatedLabel": "Discretionary Contribution to Pension Plan" } } }, "localname": "PensionContributions", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_PensionPlansDefinedBenefitMember": { "auth_ref": [ "r272", "r274", "r277", "r278", "r279", "r280", "r281", "r282", "r283", "r284", "r285", "r286", "r287", "r288", "r289", "r290", "r291", "r292", "r293", "r294", "r295", "r296", "r297", "r298", "r299", "r301", "r302", "r303", "r304", "r305", "r306", "r307", "r308", "r309", "r310", "r311", "r312", "r313", "r314", "r315", "r316", "r317", "r318", "r319", "r320", "r321", "r322", "r324", "r327", "r331", "r334", "r335", "r336", "r337", "r338", "r339", "r340", "r341", "r342", "r343", "r344", "r345", "r348", "r349", "r355", "r356", "r357", "r358" ], "lang": { "en-us": { "role": { "documentation": "Plan designed to provide participant with pension benefits. Includes, but is not limited to, defined benefit and defined contribution plans. Excludes other postretirement benefits.", "label": "Pension Plan [Member]", "terseLabel": "Pension Plan" } } }, "localname": "PensionPlansDefinedBenefitMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/PensionPlanandOtherPostretirementBenefitsComponentsofNetPeriodicBenefitCostDetails", "http://www.otpco.com/role/PensionPlanandOtherPostretirementBenefitsNarrativeDetails" ], "xbrltype": "domainItemType" }, "us-gaap_PerformanceSharesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Share-based payment arrangement awarded for meeting performance target.", "label": "Performance Shares [Member]", "terseLabel": "Stock Performance Awards" } } }, "localname": "PerformanceSharesMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/EarningsPerShareDetails", "http://www.otpco.com/role/ShareBasedPaymentsNarrativeDetails", "http://www.otpco.com/role/ShareBasedPaymentsSummaryofRestrictedStockAwardsandStockPerformanceAwardsDetails", "http://www.otpco.com/role/ShareBasedPaymentsTables", "http://www.otpco.com/role/ShareBasedPaymentsWeightedAverageAssumptionsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_PortionAtFairValueFairValueDisclosureMember": { "auth_ref": [ "r431" ], "lang": { "en-us": { "role": { "documentation": "Measured at fair value for financial reporting purposes.", "label": "Portion at Fair Value Measurement [Member]", "terseLabel": "Portion at Fair Value Measurement" } } }, "localname": "PortionAtFairValueFairValueDisclosureMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/FairValueMeasurementsScheduleofFairValueofAssetsandLiabilitiesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ProceedsFromIssuanceOfCommonStock": { "auth_ref": [ "r94" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows": { "order": 8.0, "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 Common Stock" } } }, "localname": "ProceedsFromIssuanceOfCommonStock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromIssuanceOfLongTermDebt": { "auth_ref": [ "r95" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows": { "order": 4.0, "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://www.otpco.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromRepaymentsOfShortTermDebt": { "auth_ref": [ "r113" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows": { "order": 1.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The net cash inflow or outflow for borrowing having initial term of repayment within one year or the normal operating cycle, if longer.", "label": "Proceeds from (Repayments of) Short-term Debt", "verboseLabel": "Net Short-Term Borrowings" } } }, "localname": "ProceedsFromRepaymentsOfShortTermDebt", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromSaleOfProductiveAssets": { "auth_ref": [ "r92" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows": { "order": 2.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The cash inflow from the sale of property, plant and equipment (capital expenditures), software, and other intangible assets.", "label": "Proceeds from Sale of Productive Assets", "terseLabel": "Proceeds from Disposal of Noncurrent Assets" } } }, "localname": "ProceedsFromSaleOfProductiveAssets", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_PropertyPlantAndEquipmentByTypeAxis": { "auth_ref": [ "r44", "r230" ], "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://www.otpco.com/role/SelectBalanceSheetInformationScheduleofPropertyPlantandEquipmentDetails" ], "xbrltype": "stringItemType" }, "us-gaap_PropertyPlantAndEquipmentGross": { "auth_ref": [ "r43", "r228" ], "calculation": { "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofPropertyPlantandEquipmentDetails": { "order": 2.0, "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": "Property, plant and equipment, gross" } } }, "localname": "PropertyPlantAndEquipmentGross", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofPropertyPlantandEquipmentDetails" ], "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://www.otpco.com/role/SelectBalanceSheetInformationScheduleofPropertyPlantandEquipmentDetails" ], "xbrltype": "stringItemType" }, "us-gaap_PropertyPlantAndEquipmentNet": { "auth_ref": [ "r16", "r17", "r230", "r503" ], "calculation": { "http://www.otpco.com/role/ConsolidatedBalanceSheets": { "order": 6.0, "parentTag": "us-gaap_AssetsNoncurrent", "weight": 1.0 }, "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofPropertyPlantandEquipmentDetails": { "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 of accumulated depreciation", "totalLabel": "Property, Plant and Equipment, net of accumulated depreciation" } } }, "localname": "PropertyPlantAndEquipmentNet", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets", "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofPropertyPlantandEquipmentDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PropertyPlantAndEquipmentTextBlock": { "auth_ref": [ "r16", "r230" ], "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": "Schedule of Property, Plant and Equipment" } } }, "localname": "PropertyPlantAndEquipmentTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/SelectBalanceSheetInformationTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_PropertyPlantAndEquipmentTypeDomain": { "auth_ref": [ "r16", "r228" ], "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://www.otpco.com/role/SelectBalanceSheetInformationScheduleofPropertyPlantandEquipmentDetails" ], "xbrltype": "domainItemType" }, "us-gaap_PublicUtilitiesRequestedEquityCapitalStructurePercentage": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Percentage of public utility's requested equity to capital, including debt and equity.", "label": "Public Utilities, Requested Equity Capital Structure, Percentage", "terseLabel": "Public utilities, requested equity capital structure, percentage" } } }, "localname": "PublicUtilitiesRequestedEquityCapitalStructurePercentage", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/StockholdersEquityDetails" ], "xbrltype": "percentItemType" }, "us-gaap_PublicUtilityAxis": { "auth_ref": [ "r42" ], "lang": { "en-us": { "role": { "documentation": "Information by type of utility plant.", "label": "Public Utility [Axis]", "terseLabel": "Public Utility [Axis]" } } }, "localname": "PublicUtilityAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofPropertyPlantandEquipmentDetails" ], "xbrltype": "stringItemType" }, "us-gaap_RegulatoryAgencyAxis": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Information by name of regulatory agency.", "label": "Regulatory Agency [Axis]", "terseLabel": "Regulatory Agency [Axis]" } } }, "localname": "RegulatoryAgencyAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/CommitmentsandContingenciesDetails", "http://www.otpco.com/role/StockholdersEquityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_RegulatoryAgencyDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Organization that establishes and ensures compliance with rules or regulations.", "label": "Regulatory Agency [Domain]", "terseLabel": "Regulatory Agency [Domain]" } } }, "localname": "RegulatoryAgencyDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/CommitmentsandContingenciesDetails", "http://www.otpco.com/role/StockholdersEquityDetails" ], "xbrltype": "domainItemType" }, "us-gaap_RegulatoryAssetAmortizationPeriod": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Amortization period for the recovery of regulatory asset, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.", "label": "Regulatory Asset, Amortization Period", "terseLabel": "Regulatory Assets - Remaining Recovery/Refund Period" } } }, "localname": "RegulatoryAssetAmortizationPeriod", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/RegulatoryMattersRegulatoryAssetsandLiabilitiesDetails" ], "xbrltype": "durationItemType" }, "us-gaap_RegulatoryAssetAxis": { "auth_ref": [ "r523", "r524", "r526" ], "lang": { "en-us": { "role": { "documentation": "Information by type of regulatory asset.", "label": "Regulatory Asset [Axis]", "terseLabel": "Regulatory Asset [Axis]" } } }, "localname": "RegulatoryAssetAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/RegulatoryMattersRegulatoryAssetsandLiabilitiesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_RegulatoryAssetDomain": { "auth_ref": [ "r523" ], "lang": { "en-us": { "role": { "documentation": "Rate action of a regulator resulting in capitalization of costs incurred.", "label": "Regulatory Asset [Domain]", "terseLabel": "Regulatory Asset [Domain]" } } }, "localname": "RegulatoryAssetDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/RegulatoryMattersRegulatoryAssetsandLiabilitiesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_RegulatoryAssetsAndLiabilitiesDisclosureAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Regulatory Assets and Liabilities Disclosure [Abstract]" } } }, "localname": "RegulatoryAssetsAndLiabilitiesDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_RegulatoryAssetsCurrent": { "auth_ref": [ "r523" ], "calculation": { "http://www.otpco.com/role/ConsolidatedBalanceSheets": { "order": 5.0, "parentTag": "us-gaap_AssetsCurrent", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are expected to be recovered through revenue sources within one year or the normal operating cycle, if longer. Such costs are capitalized if they meet both of the following criteria: a. It is probable that future revenue in an amount at least equal to the capitalized cost will result from inclusion of that cost in allowable costs for rate-making purposes. b. Based on available evidence, the future revenue will be provided to permit recovery of the previously incurred cost rather than to provide for expected levels of similar future costs. If the revenue will be provided through an automatic rate-adjustment clause, this criterion requires that the regulator's intent clearly be to permit recovery of the previously incurred cost.", "label": "Regulatory Assets, Current", "terseLabel": "Regulatory assets - current", "verboseLabel": "Regulatory Assets" } } }, "localname": "RegulatoryAssetsCurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets", "http://www.otpco.com/role/RegulatoryMattersRegulatoryAssetsandLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_RegulatoryAssetsNoncurrent": { "auth_ref": [ "r523" ], "calculation": { "http://www.otpco.com/role/ConsolidatedBalanceSheets": { "order": 4.0, "parentTag": "us-gaap_AssetsNoncurrent", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are not expected to be recovered through revenue sources within one year or the normal operating cycle if longer.", "label": "Regulatory Assets, Noncurrent", "terseLabel": "Regulatory Assets", "verboseLabel": "Regulatory assets, long-term" } } }, "localname": "RegulatoryAssetsNoncurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets", "http://www.otpco.com/role/RegulatoryMattersRegulatoryAssetsandLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_RegulatoryLiabilityAmortizationPeriod": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Amortization period for the recovery of regulatory liability, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.", "label": "Regulatory Liability, Amortization Period", "terseLabel": "Regulatory Liabilities - Remaining Recovery/Refund Period" } } }, "localname": "RegulatoryLiabilityAmortizationPeriod", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/RegulatoryMattersRegulatoryAssetsandLiabilitiesDetails" ], "xbrltype": "durationItemType" }, "us-gaap_RegulatoryLiabilityAxis": { "auth_ref": [ "r525" ], "lang": { "en-us": { "role": { "documentation": "Information by type of regulatory liability.", "label": "Regulatory Liability [Axis]", "terseLabel": "Regulatory Liability [Axis]" } } }, "localname": "RegulatoryLiabilityAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/RegulatoryMattersRegulatoryAssetsandLiabilitiesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_RegulatoryLiabilityCurrent": { "auth_ref": [ "r525" ], "calculation": { "http://www.otpco.com/role/ConsolidatedBalanceSheets": { "order": 5.0, "parentTag": "us-gaap_LiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount for the individual regulatory current liability as itemized in a table of regulatory current liabilities as of the end of the period.", "label": "Regulatory Liability, Current", "terseLabel": "Regulatory Liabilities", "verboseLabel": "Regulatory liabilities, current" } } }, "localname": "RegulatoryLiabilityCurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets", "http://www.otpco.com/role/RegulatoryMattersRegulatoryAssetsandLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_RegulatoryLiabilityDomain": { "auth_ref": [ "r525" ], "lang": { "en-us": { "role": { "documentation": "Rate action of a regulator resulting in accrual of costs or expenses.", "label": "Regulatory Liability [Domain]", "terseLabel": "Regulatory Liability [Domain]" } } }, "localname": "RegulatoryLiabilityDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/RegulatoryMattersRegulatoryAssetsandLiabilitiesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_RegulatoryLiabilityNoncurrent": { "auth_ref": [ "r53" ], "calculation": { "http://www.otpco.com/role/ConsolidatedBalanceSheets": { "order": 1.0, "parentTag": "us-gaap_LiabilitiesNoncurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount for the individual regulatory noncurrent liability as itemized in a table of regulatory noncurrent liabilities as of the end of the period.", "label": "Regulatory Liability, Noncurrent", "terseLabel": "Regulatory liabilities, long -term", "verboseLabel": "Regulatory Liabilities" } } }, "localname": "RegulatoryLiabilityNoncurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets", "http://www.otpco.com/role/RegulatoryMattersRegulatoryAssetsandLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_RepaymentsOfLongTermDebt": { "auth_ref": [ "r97" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows": { "order": 9.0, "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": "Payments for Retirement of Long-Term Debt" } } }, "localname": "RepaymentsOfLongTermDebt", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_RestrictedStockMember": { "auth_ref": [ "r140" ], "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": "Stock Awards" } } }, "localname": "RestrictedStockMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/EarningsPerShareDetails", "http://www.otpco.com/role/ShareBasedPaymentsNarrativeDetails", "http://www.otpco.com/role/ShareBasedPaymentsSummaryofRestrictedStockAwardsandStockPerformanceAwardsDetails", "http://www.otpco.com/role/ShareBasedPaymentsTables" ], "xbrltype": "domainItemType" }, "us-gaap_RetainedEarningsAccumulatedDeficit": { "auth_ref": [ "r31", "r251", "r383", "r501", "r519", "r521" ], "calculation": { "http://www.otpco.com/role/ConsolidatedBalanceSheets": { "order": 4.0, "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://www.otpco.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_RetainedEarningsMember": { "auth_ref": [ "r115", "r116", "r117", "r119", "r125", "r127", "r208", "r380", "r381", "r382", "r399", "r400", "r516", "r518" ], "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://www.otpco.com/role/ConsolidatedStatementsofShareholdersEquity" ], "xbrltype": "domainItemType" }, "us-gaap_RetirementPlanTypeAxis": { "auth_ref": [ "r272", "r273", "r274", "r277", "r278", "r279", "r280", "r281", "r282", "r283", "r284", "r285", "r286", "r287", "r288", "r289", "r290", "r291", "r292", "r293", "r294", "r295", "r296", "r297", "r298", "r299", "r301", "r302", "r303", "r304", "r305", "r306", "r307", "r308", "r309", "r310", "r311", "r312", "r313", "r314", "r315", "r316", "r317", "r318", "r319", "r320", "r321", "r322", "r324", "r327", "r331", "r334", "r335", "r336", "r337", "r338", "r339", "r340", "r341", "r342", "r343", "r344", "r345", "r348", "r349", "r350", "r351", "r352", "r353", "r355", "r356", "r357", "r358" ], "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://www.otpco.com/role/PensionPlanandOtherPostretirementBenefitsComponentsofNetPeriodicBenefitCostDetails", "http://www.otpco.com/role/PensionPlanandOtherPostretirementBenefitsNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_RetirementPlanTypeDomain": { "auth_ref": [ "r272", "r273", "r274", "r277", "r278", "r279", "r280", "r281", "r282", "r283", "r284", "r285", "r286", "r287", "r288", "r289", "r290", "r291", "r292", "r293", "r294", "r295", "r296", "r297", "r298", "r299", "r301", "r302", "r303", "r304", "r305", "r306", "r307", "r308", "r309", "r310", "r311", "r312", "r313", "r314", "r315", "r316", "r317", "r318", "r319", "r320", "r321", "r322", "r324", "r327", "r331", "r334", "r335", "r336", "r337", "r338", "r339", "r340", "r341", "r342", "r343", "r344", "r345", "r348", "r349", "r350", "r351", "r352", "r353", "r355", "r356", "r357", "r358" ], "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://www.otpco.com/role/PensionPlanandOtherPostretirementBenefitsComponentsofNetPeriodicBenefitCostDetails", "http://www.otpco.com/role/PensionPlanandOtherPostretirementBenefitsNarrativeDetails" ], "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": [ "r160", "r161", "r174", "r180", "r181", "r188", "r189", "r191", "r261", "r262", "r480" ], "calculation": { "http://www.otpco.com/role/RevenueDetails": { "order": 1.0, "parentTag": "us-gaap_Revenues", "weight": 1.0 } }, "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", "verboseLabel": "Total Operating Revenues from Contracts with Customers" } } }, "localname": "RevenueFromContractWithCustomerExcludingAssessedTax", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/RevenueDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_RevenueFromContractWithCustomerTextBlock": { "auth_ref": [ "r253", "r254", "r255", "r256", "r257", "r258", "r259", "r260", "r263", "r271" ], "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" } } }, "localname": "RevenueFromContractWithCustomerTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/Revenue" ], "xbrltype": "textBlockItemType" }, "us-gaap_RevenueNotFromContractWithCustomer": { "auth_ref": [ "r83" ], "calculation": { "http://www.otpco.com/role/RevenueDetails": { "order": 2.0, "parentTag": "us-gaap_Revenues", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of revenue that is not accounted for under Topic 606.", "label": "Revenue Not from Contract with Customer", "terseLabel": "Electric Segment - Alternative Revenue Program Revenues" } } }, "localname": "RevenueNotFromContractWithCustomer", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/RevenueDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_Revenues": { "auth_ref": [ "r83", "r110", "r160", "r161", "r174", "r180", "r181", "r188", "r189", "r191", "r204", "r435", "r493" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofIncome": { "order": 1.0, "parentTag": "us-gaap_OperatingIncomeLoss", "weight": 1.0 }, "http://www.otpco.com/role/RevenueDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "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": "Total Operating Revenues", "totalLabel": "Total Operating Revenues" } } }, "localname": "Revenues", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofIncome", "http://www.otpco.com/role/RevenueDetails", "http://www.otpco.com/role/SegmentInformationBusinessSegmentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_RevenuesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Revenues [Abstract]", "terseLabel": "Operating Revenues" } } }, "localname": "RevenuesAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "stringItemType" }, "us-gaap_SaleOfStockNameOfTransactionDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Sale of the entity's stock, including, but not limited to, initial public offering (IPO) and private placement.", "label": "Sale of Stock [Domain]", "terseLabel": "Sale of Stock [Domain]" } } }, "localname": "SaleOfStockNameOfTransactionDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/StockholdersEquityDetails" ], "xbrltype": "domainItemType" }, "us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.", "label": "Sale of Stock, Number of Shares Issued in Transaction", "terseLabel": "Number of shares issued (in shares)" } } }, "localname": "SaleOfStockNumberOfSharesIssuedInTransaction", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/StockholdersEquityDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock": { "auth_ref": [ "r58" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables.", "label": "Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]", "terseLabel": "Schedule of Receivables" } } }, "localname": "ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/SelectBalanceSheetInformationTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfDebtTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation.", "label": "Schedule of Debt [Table Text Block]", "terseLabel": "Schedule of Debt" } } }, "localname": "ScheduleOfDebtTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ShortTermandLongTermBorrowingsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable": { "auth_ref": [ "r330", "r331", "r332", "r333", "r344" ], "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://www.otpco.com/role/PensionPlanandOtherPostretirementBenefitsComponentsofNetPeriodicBenefitCostDetails", "http://www.otpco.com/role/PensionPlanandOtherPostretirementBenefitsNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock": { "auth_ref": [ "r139" ], "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 Earnings Per Share, Basic and Diluted" } } }, "localname": "ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/EarningsPerShareTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTable": { "auth_ref": [ "r131", "r135", "r137", "r139", "r144" ], "lang": { "en-us": { "role": { "documentation": "Complete disclosure pertaining to an entity's diluted earnings per share.", "label": "Schedule of Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Table]", "terseLabel": "Schedule of Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Table]" } } }, "localname": "ScheduleOfEarningsPerShareDilutedByCommonClassTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/EarningsPerShareDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock": { "auth_ref": [ "r394" ], "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": "Schedule of Effective Income Tax Rate Reconciliation" } } }, "localname": "ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/IncomeTaxesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfInventoryCurrentTableTextBlock": { "auth_ref": [ "r9", "r37", "r38", "r39" ], "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": "Schedule of Inventories" } } }, "localname": "ScheduleOfInventoryCurrentTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/SelectBalanceSheetInformationTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfLineOfCreditFacilitiesTextBlock": { "auth_ref": [ "r47", "r112" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of short-term or long-term contractual arrangements with lenders, including letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line.", "label": "Schedule of Line of Credit Facilities [Table Text Block]", "terseLabel": "Schedule of Line of Credit Facilities" } } }, "localname": "ScheduleOfLineOfCreditFacilitiesTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ShortTermandLongTermBorrowingsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfNetBenefitCostsTableTextBlock": { "auth_ref": [ "r310" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments.", "label": "Schedule of Net Benefit Costs [Table Text Block]", "terseLabel": "Schedule of Net Benefit Costs" } } }, "localname": "ScheduleOfNetBenefitCostsTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/PensionPlanandOtherPostretirementBenefitsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfPropertyPlantAndEquipmentTable": { "auth_ref": [ "r44", "r230" ], "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://www.otpco.com/role/SelectBalanceSheetInformationScheduleofPropertyPlantandEquipmentDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfRegulatoryAssetsAndLiabilitiesTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for detailed information about regulatory assets and liabilities, including current and noncurrent assets created when regulatory agencies permit the deferral of costs to the balance sheet that would otherwise be required to appear on the company's income statement and would be charged against current expenses or revenues, as well as current and noncurrent liabilities created when regulatory agencies permit.", "label": "Schedule of Regulatory Assets and Liabilities [Text Block]", "terseLabel": "Regulatory Matters" } } }, "localname": "ScheduleOfRegulatoryAssetsAndLiabilitiesTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/RegulatoryMatters" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable": { "auth_ref": [ "r169", "r172", "r178", "r225" ], "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://www.otpco.com/role/SegmentInformationBusinessSegmentsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock": { "auth_ref": [ "r169", "r172", "r178", "r225" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of the profit or loss and total assets for each reportable segment. 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 Text Block]", "terseLabel": "Schedule of Segment Reporting Information, by Segment" } } }, "localname": "ScheduleOfSegmentReportingInformationBySegmentTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/SegmentInformationTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable": { "auth_ref": [ "r364", "r379" ], "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://www.otpco.com/role/ShareBasedPaymentsNarrativeDetails", "http://www.otpco.com/role/ShareBasedPaymentsSummaryofRestrictedStockAwardsandStockPerformanceAwardsDetails", "http://www.otpco.com/role/ShareBasedPaymentsTables", "http://www.otpco.com/role/ShareBasedPaymentsWeightedAverageAssumptionsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfStockByClassTable": { "auth_ref": [ "r56", "r108", "r147", "r148", "r241", "r242", "r243", "r245", "r246", "r247", "r248", "r249", "r250", "r251" ], "lang": { "en-us": { "role": { "documentation": "Schedule detailing information related to equity by class of stock. Class of stock includes common, convertible, and preferred stocks which are not redeemable or redeemable solely at the option of the issuer. It also includes preferred stock with redemption features that are solely within the control of the issuer and mandatorily redeemable stock if redemption is required to occur only upon liquidation or termination of the reporting entity.", "label": "Schedule of Stock by Class [Table]", "terseLabel": "Schedule of Stock by Class [Table]" } } }, "localname": "ScheduleOfStockByClassTable", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/StockholdersEquityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_SegmentDomain": { "auth_ref": [ "r156", "r160", "r161", "r162", "r163", "r164", "r165", "r166", "r167", "r168", "r169", "r170", "r171", "r174", "r175", "r176", "r177", "r179", "r180", "r181", "r182", "r183", "r185", "r191", "r512" ], "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://www.otpco.com/role/RevenueDetails", "http://www.otpco.com/role/SegmentInformationBusinessSegmentsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_SegmentReportingAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Segment Reporting [Abstract]" } } }, "localname": "SegmentReportingAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "xbrltype": "stringItemType" }, "us-gaap_SegmentReportingDisclosureTextBlock": { "auth_ref": [ "r156", "r158", "r159", "r169", "r173", "r179", "r183", "r184", "r185", "r186", "r188", "r190", "r191", "r192" ], "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 Information" } } }, "localname": "SegmentReportingDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/SegmentInformation" ], "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://www.otpco.com/role/SegmentInformationBusinessSegmentsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensation": { "auth_ref": [ "r103" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows": { "order": 5.0, "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": "Stock Compensation Expense" } } }, "localname": "ShareBasedCompensation", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1": { "auth_ref": [ "r365" ], "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": "Award vesting period" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ShareBasedPaymentsNarrativeDetails" ], "xbrltype": "durationItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod": { "auth_ref": [ "r367" ], "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", "negatedTerseLabel": "Forfeited (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ShareBasedPaymentsSummaryofRestrictedStockAwardsandStockPerformanceAwardsDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue": { "auth_ref": [ "r371" ], "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://www.otpco.com/role/ShareBasedPaymentsSummaryofRestrictedStockAwardsandStockPerformanceAwardsDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod": { "auth_ref": [ "r369" ], "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://www.otpco.com/role/ShareBasedPaymentsSummaryofRestrictedStockAwardsandStockPerformanceAwardsDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue": { "auth_ref": [ "r369" ], "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://www.otpco.com/role/ShareBasedPaymentsSummaryofRestrictedStockAwardsandStockPerformanceAwardsDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber": { "auth_ref": [ "r368" ], "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": "End of year (in shares)", "periodStartLabel": "Beginning of year (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ShareBasedPaymentsSummaryofRestrictedStockAwardsandStockPerformanceAwardsDetails" ], "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": "Shares" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ShareBasedPaymentsSummaryofRestrictedStockAwardsandStockPerformanceAwardsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue": { "auth_ref": [ "r368" ], "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": "End of year (in dollars per share)", "periodStartLabel": "Beginning of year (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ShareBasedPaymentsSummaryofRestrictedStockAwardsandStockPerformanceAwardsDetails" ], "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://www.otpco.com/role/ShareBasedPaymentsSummaryofRestrictedStockAwardsandStockPerformanceAwardsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod": { "auth_ref": [ "r370" ], "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", "negatedTerseLabel": "Vested (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ShareBasedPaymentsSummaryofRestrictedStockAwardsandStockPerformanceAwardsDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue": { "auth_ref": [ "r372" ], "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 of awards vested" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ShareBasedPaymentsNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue": { "auth_ref": [ "r370" ], "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://www.otpco.com/role/ShareBasedPaymentsSummaryofRestrictedStockAwardsandStockPerformanceAwardsDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate": { "auth_ref": [ "r375" ], "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://www.otpco.com/role/ShareBasedPaymentsWeightedAverageAssumptionsDetails" ], "xbrltype": "percentItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate": { "auth_ref": [ "r374" ], "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://www.otpco.com/role/ShareBasedPaymentsWeightedAverageAssumptionsDetails" ], "xbrltype": "percentItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate": { "auth_ref": [ "r376" ], "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 interest rate" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ShareBasedPaymentsWeightedAverageAssumptionsDetails" ], "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://www.otpco.com/role/ShareBasedPaymentsNarrativeDetails", "http://www.otpco.com/role/ShareBasedPaymentsSummaryofRestrictedStockAwardsandStockPerformanceAwardsDetails", "http://www.otpco.com/role/ShareBasedPaymentsTables", "http://www.otpco.com/role/ShareBasedPaymentsWeightedAverageAssumptionsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain": { "auth_ref": [ "r362", "r366" ], "lang": { "en-us": { "role": { "documentation": "Award under share-based payment arrangement.", "label": "Award Type [Domain]", "terseLabel": "Award Type [Domain]" } } }, "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/EarningsPerShareDetails", "http://www.otpco.com/role/ShareBasedPaymentsNarrativeDetails", "http://www.otpco.com/role/ShareBasedPaymentsSummaryofRestrictedStockAwardsandStockPerformanceAwardsDetails", "http://www.otpco.com/role/ShareBasedPaymentsTables", "http://www.otpco.com/role/ShareBasedPaymentsWeightedAverageAssumptionsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1": { "auth_ref": [ "r373", "r384" ], "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://www.otpco.com/role/ShareBasedPaymentsWeightedAverageAssumptionsDetails" ], "xbrltype": "durationItemType" }, "us-gaap_SharesOutstanding": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Number of shares issued which are neither cancelled nor held in the treasury.", "label": "Shares, Outstanding", "periodEndLabel": "Ending balance, shares (in shares)", "periodStartLabel": "Beginning balance, shares (in shares)" } } }, "localname": "SharesOutstanding", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofShareholdersEquity" ], "xbrltype": "sharesItemType" }, "us-gaap_ShortTermBorrowings": { "auth_ref": [ "r21", "r484", "r498" ], "calculation": { "http://www.otpco.com/role/ConsolidatedBalanceSheets": { "order": 3.0, "parentTag": "us-gaap_LiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.", "label": "Short-term Debt", "terseLabel": "Short-Term Debt", "verboseLabel": "Amount Outstanding" } } }, "localname": "ShortTermBorrowings", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets", "http://www.otpco.com/role/ShortTermandLongTermBorrowingsLinesofCreditDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ShorttermDebtFairValue": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents the amount of short-term debt existing as of the balance sheet date.", "label": "Short-term Debt, Fair Value", "negatedLabel": "Short-Term Debt" } } }, "localname": "ShorttermDebtFairValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/FairValueMeasurementsScheduleofFairValueofAssetsandLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_SignificantAccountingPoliciesTextBlock": { "auth_ref": [ "r114" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for all significant accounting policies of the reporting entity.", "label": "Significant Accounting Policies [Text Block]", "terseLabel": "Summary of Significant Accounting Policies" } } }, "localname": "SignificantAccountingPoliciesTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/SummaryofSignificantAccountingPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_StatementBusinessSegmentsAxis": { "auth_ref": [ "r0", "r156", "r160", "r161", "r162", "r163", "r164", "r165", "r166", "r167", "r168", "r169", "r170", "r171", "r174", "r175", "r176", "r177", "r179", "r180", "r181", "r182", "r183", "r185", "r191", "r225", "r231", "r232", "r233", "r512" ], "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://www.otpco.com/role/RevenueDetails", "http://www.otpco.com/role/SegmentInformationBusinessSegmentsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_StatementEquityComponentsAxis": { "auth_ref": [ "r57", "r115", "r116", "r117", "r119", "r125", "r127", "r146", "r208", "r244", "r251", "r380", "r381", "r382", "r399", "r400", "r437", "r438", "r439", "r440", "r441", "r442", "r516", "r517", "r518" ], "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://www.otpco.com/role/ConsolidatedStatementsofShareholdersEquity" ], "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://www.otpco.com/role/ConsolidatedStatementsofIncome", "http://www.otpco.com/role/ConsolidatedStatementsofShareholdersEquity" ], "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": [ "r115", "r116", "r117", "r146", "r480" ], "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://www.otpco.com/role/ConsolidatedStatementsofIncome", "http://www.otpco.com/role/ConsolidatedStatementsofShareholdersEquity" ], "xbrltype": "stringItemType" }, "us-gaap_StockIssuedDuringPeriodSharesNewIssues": { "auth_ref": [ "r27", "r28", "r244", "r251" ], "lang": { "en-us": { "role": { "documentation": "Number of new stock issued during the period.", "label": "Stock Issued During Period, Shares, New Issues", "terseLabel": "Common Stock Issuances, Net of Expenses (in shares)" } } }, "localname": "StockIssuedDuringPeriodSharesNewIssues", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofShareholdersEquity" ], "xbrltype": "sharesItemType" }, "us-gaap_StockIssuedDuringPeriodValueNewIssues": { "auth_ref": [ "r27", "r28", "r244", "r251" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.", "label": "Stock Issued During Period, Value, New Issues", "terseLabel": "Common Stock Issuances, Net of Expenses" } } }, "localname": "StockIssuedDuringPeriodValueNewIssues", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofShareholdersEquity" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockRepurchasedAndRetiredDuringPeriodShares": { "auth_ref": [ "r27", "r28", "r244", "r251" ], "lang": { "en-us": { "role": { "documentation": "Number of shares that have been repurchased and retired during the period.", "label": "Stock Repurchased and Retired During Period, Shares", "negatedLabel": "Common Stock Retirements and Forfeitures (in shares)" } } }, "localname": "StockRepurchasedAndRetiredDuringPeriodShares", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofShareholdersEquity" ], "xbrltype": "sharesItemType" }, "us-gaap_StockRepurchasedAndRetiredDuringPeriodValue": { "auth_ref": [ "r27", "r28", "r244", "r251" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).", "label": "Stock Repurchased and Retired During Period, Value", "negatedLabel": "Common Stock Retirements and Forfeitures" } } }, "localname": "StockRepurchasedAndRetiredDuringPeriodValue", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofShareholdersEquity" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockholdersEquity": { "auth_ref": [ "r28", "r33", "r34", "r110", "r196", "r204", "r435" ], "calculation": { "http://www.otpco.com/role/ConsolidatedBalanceSheets": { "order": 2.0, "parentTag": "us-gaap_CapitalizationLongtermDebtAndEquity", "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 Shareholders' Equity" } } }, "localname": "StockholdersEquity", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets", "http://www.otpco.com/role/ConsolidatedStatementsofShareholdersEquity" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockholdersEquityAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Stockholders' Equity Attributable to Parent [Abstract]", "terseLabel": "Shareholders' Equity" } } }, "localname": "StockholdersEquityAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "stringItemType" }, "us-gaap_StockholdersEquityNoteDisclosureTextBlock": { "auth_ref": [ "r109", "r251", "r252" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.", "label": "Stockholders' Equity Note Disclosure [Text Block]", "terseLabel": "Stockholders' Equity" } } }, "localname": "StockholdersEquityNoteDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/StockholdersEquity" ], "xbrltype": "textBlockItemType" }, "us-gaap_SubsequentEventMember": { "auth_ref": [ "r443", "r448" ], "lang": { "en-us": { "role": { "documentation": "Identifies event that occurred after the balance sheet date but before financial statements are issued or available to be issued.", "label": "Subsequent Event [Member]", "terseLabel": "Subsequent Event" } } }, "localname": "SubsequentEventMember", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/StockholdersEquityDetails" ], "xbrltype": "domainItemType" }, "us-gaap_SubsequentEventTypeAxis": { "auth_ref": [ "r443", "r448" ], "lang": { "en-us": { "role": { "documentation": "Information by event that occurred after the balance sheet date but before financial statements are issued or available to be issued.", "label": "Subsequent Event Type [Axis]", "terseLabel": "Subsequent Event Type [Axis]" } } }, "localname": "SubsequentEventTypeAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/StockholdersEquityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_SubsequentEventTypeDomain": { "auth_ref": [ "r443", "r448" ], "lang": { "en-us": { "role": { "documentation": "Event that occurred after the balance sheet date but before financial statements are issued or available to be issued.", "label": "Subsequent Event Type [Domain]", "terseLabel": "Subsequent Event Type [Domain]" } } }, "localname": "SubsequentEventTypeDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/StockholdersEquityDetails" ], "xbrltype": "domainItemType" }, "us-gaap_SubsidiarySaleOfStockAxis": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Information by type of sale of the entity's stock.", "label": "Sale of Stock [Axis]", "terseLabel": "Sale of Stock [Axis]" } } }, "localname": "SubsidiarySaleOfStockAxis", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/StockholdersEquityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_SupplementalBalanceSheetDisclosuresTextBlock": { "auth_ref": [ "r64" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for supplemental balance sheet disclosures, including descriptions and amounts for assets, liabilities, and equity.", "label": "Supplemental Balance Sheet Disclosures [Text Block]", "terseLabel": "Select Balance Sheet Information" } } }, "localname": "SupplementalBalanceSheetDisclosuresTextBlock", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/SelectBalanceSheetInformation" ], "xbrltype": "textBlockItemType" }, "us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain": { "auth_ref": [ "r199", "r200", "r449", "r450", "r451", "r452", "r453", "r454", "r455", "r456", "r457", "r458", "r459", "r460", "r461", "r462", "r463", "r464", "r465", "r466", "r467", "r468", "r469", "r470", "r471", "r472", "r473", "r474", "r475", "r476", "r477", "r478" ], "lang": { "en-us": { "role": { "documentation": "Instrument or contract that imposes a contractual obligation to deliver cash or another financial instrument or to exchange other financial instruments on potentially unfavorable terms and conveys a contractual right to receive cash or another financial instrument or to exchange other financial instruments on potentially favorable terms.", "label": "Financial Instruments [Domain]", "terseLabel": "Financial Instruments [Domain]" } } }, "localname": "TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/FairValueMeasurementsScheduleofFairValueMeasurementsRecurringandNonrecurringDetails" ], "xbrltype": "domainItemType" }, "us-gaap_UnbilledReceivablesCurrent": { "auth_ref": [], "calculation": { "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofReceivablesDetails": { "order": 2.0, "parentTag": "us-gaap_AccountsReceivableGross", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount received for services rendered and products shipped, but not yet billed, for non-contractual agreements due within one year or the normal operating cycle, if longer.", "label": "Unbilled Receivables, Current", "terseLabel": "Unbilled Receivables" } } }, "localname": "UnbilledReceivablesCurrent", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofReceivablesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_UseOfEstimates": { "auth_ref": [ "r149", "r150", "r151", "r152", "r153", "r154", "r155" ], "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://www.otpco.com/role/SummaryofSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_UtilitiesOperatingExpenseFuelUsed": { "auth_ref": [ "r89" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofIncome": { "order": 4.0, "parentTag": "us-gaap_CostsAndExpenses", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of operating expense for fuel used by regulated operation.", "label": "Utilities Operating Expense, Fuel Used", "terseLabel": "Electric Production Fuel" } } }, "localname": "UtilitiesOperatingExpenseFuelUsed", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_UtilitiesOperatingExpenseMaintenanceAndOperations": { "auth_ref": [ "r89" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofIncome": { "order": 2.0, "parentTag": "us-gaap_CostsAndExpenses", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of operating expense for routine plant maintenance, repairs and operations of regulated operation.", "label": "Utilities Operating Expense, Maintenance and Operations", "terseLabel": "Electric Operating and Maintenance Expenses" } } }, "localname": "UtilitiesOperatingExpenseMaintenanceAndOperations", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_UtilitiesOperatingExpenseOther": { "auth_ref": [ "r89" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofIncome": { "order": 3.0, "parentTag": "us-gaap_CostsAndExpenses", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of other operating expense of regulated operation.", "label": "Utilities Operating Expense, Other", "terseLabel": "Electric Property Taxes" } } }, "localname": "UtilitiesOperatingExpenseOther", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_UtilitiesOperatingExpenseProductsAndServices": { "auth_ref": [ "r89" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofIncome": { "order": 1.0, "parentTag": "us-gaap_CostsAndExpenses", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of operating expense for products and services of regulated operation.", "label": "Utilities Operating Expense, Products and Services", "terseLabel": "Cost of Products Sold (excluding depreciation)" } } }, "localname": "UtilitiesOperatingExpenseProductsAndServices", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_UtilitiesOperatingExpensePurchasedPower": { "auth_ref": [ "r89" ], "calculation": { "http://www.otpco.com/role/ConsolidatedStatementsofIncome": { "order": 5.0, "parentTag": "us-gaap_CostsAndExpenses", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of operating expense for purchased power of regulated operation.", "label": "Utilities Operating Expense, Purchased Power", "terseLabel": "Electric Purchased Power" } } }, "localname": "UtilitiesOperatingExpensePurchasedPower", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "monetaryItemType" }, "us-gaap_UtilityPlantDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Plant owned by a utility entity used in the operations of the entity.", "label": "Utility Plant [Domain]", "terseLabel": "Utility Plant [Domain]" } } }, "localname": "UtilityPlantDomain", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/SelectBalanceSheetInformationScheduleofPropertyPlantandEquipmentDetails" ], "xbrltype": "domainItemType" }, "us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment": { "auth_ref": [ "r139" ], "calculation": { "http://www.otpco.com/role/EarningsPerShareDetails": { "order": 1.0, "parentTag": "us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding", "weight": 1.0 } }, "lang": { "en-us": { "role": { "documentation": "The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.", "label": "Weighted Average Number Diluted Shares Outstanding Adjustment", "totalLabel": "Total Dilutive Shares (in shares)" } } }, "localname": "WeightedAverageNumberDilutedSharesOutstandingAdjustment", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/EarningsPerShareDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustmentAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract]", "terseLabel": "Effect of Dilutive Securities:" } } }, "localname": "WeightedAverageNumberDilutedSharesOutstandingAdjustmentAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/EarningsPerShareDetails" ], "xbrltype": "stringItemType" }, "us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding": { "auth_ref": [ "r130", "r139" ], "calculation": { "http://www.otpco.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": "Diluted (in shares)", "totalLabel": "Weighted Average Common Shares Outstanding \u2013 Diluted (in shares)" } } }, "localname": "WeightedAverageNumberOfDilutedSharesOutstanding", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofIncome", "http://www.otpco.com/role/EarningsPerShareDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_WeightedAverageNumberOfSharesOutstandingBasic": { "auth_ref": [ "r129", "r139" ], "calculation": { "http://www.otpco.com/role/EarningsPerShareDetails": { "order": 2.0, "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": "Basic (in shares)", "verboseLabel": "Weighted Average Common Shares Outstanding - Basic (in shares)" } } }, "localname": "WeightedAverageNumberOfSharesOutstandingBasic", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofIncome", "http://www.otpco.com/role/EarningsPerShareDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Weighted Average Number of Shares Outstanding Reconciliation [Abstract]", "terseLabel": "Weighted-Average Common Shares Outstanding:" } } }, "localname": "WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract", "nsuri": "http://fasb.org/us-gaap/2020-01-31", "presentation": [ "http://www.otpco.com/role/ConsolidatedStatementsofIncome" ], "xbrltype": "stringItemType" } }, "unitCount": 5 } }, "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": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 201.5-02(24))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r100": { "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" }, "r101": { "Name": "Accounting Standards Codification", "Paragraph": "25", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(g)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=121586364&loc=d3e3536-108585" }, "r102": { "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" }, "r103": { "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" }, "r104": { "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" }, "r105": { "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" }, "r106": { "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" }, "r107": { "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" }, "r108": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08(d))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690" }, "r109": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08(e)(1))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690" }, "r11": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 201.5-02(25))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r110": { "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" }, "r111": { "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" }, "r112": { "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" }, "r113": { "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" }, "r114": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "235", "URI": "http://asc.fasb.org/topic&trid=2122369" }, "r115": { "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" }, "r116": { "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" }, "r117": { "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" }, "r118": { "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" }, "r119": { "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" }, "r12": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 201.5-02(26))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r120": { "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" }, "r121": { "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" }, "r122": { "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" }, "r123": { "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" }, "r124": { "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" }, "r125": { "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" }, "r126": { "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" }, "r127": { "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" }, "r128": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "255", "URI": "http://asc.fasb.org/extlink&oid=121605250&loc=d3e2408-110839" }, "r129": { "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" }, "r13": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(10))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r130": { "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" }, "r131": { "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" }, "r132": { "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" }, "r133": { "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" }, "r134": { "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" }, "r135": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=121326447&loc=d3e1278-109256" }, "r136": { "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" }, "r137": { "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" }, "r138": { "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" }, "r139": { "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" }, "r14": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(11))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r140": { "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" }, "r141": { "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" }, "r142": { "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" }, "r143": { "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" }, "r144": { "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" }, "r145": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "260", "URI": "http://asc.fasb.org/topic&trid=2144383" }, "r146": { "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" }, "r147": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "272", "URI": "http://asc.fasb.org/extlink&oid=6828210&loc=d3e70229-108054" }, "r148": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "272", "URI": "http://asc.fasb.org/extlink&oid=6373374&loc=d3e70434-108055" }, "r149": { "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" }, "r15": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(12))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r150": { "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" }, "r151": { "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" }, "r152": { "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" }, "r153": { "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" }, "r154": { "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" }, "r155": { "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" }, "r156": { "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" }, "r157": { "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" }, "r158": { "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" }, "r159": { "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" }, "r16": { "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" }, "r160": { "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" }, "r161": { "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" }, "r162": { "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" }, "r163": { "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" }, "r164": { "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" }, "r165": { "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" }, "r166": { "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" }, "r167": { "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" }, "r168": { "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" }, "r169": { "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" }, "r17": { "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" }, "r170": { "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" }, "r171": { "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" }, "r172": { "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" }, "r173": { "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" }, "r174": { "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" }, "r175": { "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" }, "r176": { "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" }, "r177": { "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" }, "r178": { "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" }, "r179": { "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" }, "r18": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(15))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r180": { "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" }, "r181": { "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" }, "r182": { "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" }, "r183": { "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" }, "r184": { "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" }, "r185": { "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" }, "r186": { "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" }, "r187": { "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" }, "r188": { "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" }, "r189": { "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" }, "r19": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(16))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r190": { "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" }, "r191": { "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" }, "r192": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "280", "URI": "http://asc.fasb.org/topic&trid=2134510" }, "r193": { "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" }, "r194": { "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" }, "r195": { "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" }, "r196": { "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" }, "r197": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121553693&loc=d3e26610-111562" }, "r198": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(aa)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563" }, "r199": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27232-111563" }, "r2": { "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" }, "r20": { "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" }, "r200": { "Name": "Accounting Standards Codification", "Paragraph": "5A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=SL120269820-111563" }, "r201": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=121645371&loc=d3e27357-111563" }, "r202": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "320", "URI": "http://asc.fasb.org/topic&trid=2196928" }, "r203": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "321", "URI": "http://asc.fasb.org/topic&trid=75115024" }, "r204": { "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" }, "r205": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "323", "URI": "http://asc.fasb.org/topic&trid=2196965" }, "r206": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "25", "SubTopic": "30", "Topic": "325", "URI": "http://asc.fasb.org/extlink&oid=6384206&loc=d3e41899-111602" }, "r207": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "325", "URI": "http://asc.fasb.org/topic&trid=2197064" }, "r208": { "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" }, "r209": { "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" }, "r21": { "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" }, "r210": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL82919244-210447" }, "r211": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447" }, "r212": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(f)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447" }, "r213": { "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" }, "r214": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL82919253-210447" }, "r215": { "Name": "Accounting Standards Codification", "Paragraph": "16", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL82919258-210447" }, "r216": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121599337&loc=SL82919230-210447" }, "r217": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121558606&loc=SL82898722-210454" }, "r218": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121582814&loc=SL82922888-210455" }, "r219": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121582814&loc=SL82922895-210455" }, "r22": { "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" }, "r220": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121582814&loc=SL82922900-210455" }, "r221": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "55", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121590138&loc=SL82922954-210456" }, "r222": { "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" }, "r223": { "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" }, "r224": { "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" }, "r225": { "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" }, "r226": { "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" }, "r227": { "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" }, "r228": { "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" }, "r229": { "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" }, "r23": { "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" }, "r230": { "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" }, "r231": { "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" }, "r232": { "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" }, "r233": { "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" }, "r234": { "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" }, "r235": { "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" }, "r236": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "440", "URI": "http://asc.fasb.org/topic&trid=2144648" }, "r237": { "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" }, "r238": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "450", "URI": "http://asc.fasb.org/topic&trid=2127136" }, "r239": { "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" }, "r24": { "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" }, "r240": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "470", "URI": "http://asc.fasb.org/topic&trid=2208564" }, "r241": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(CFRR 211.02)", "Topic": "480", "URI": "http://asc.fasb.org/extlink&oid=65877616&loc=d3e177068-122764" }, "r242": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=65888546&loc=d3e21300-112643" }, "r243": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21553-112644" }, "r244": { "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" }, "r245": { "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" }, "r246": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21484-112644" }, "r247": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21488-112644" }, "r248": { "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" }, "r249": { "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" }, "r25": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(23))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r250": { "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" }, "r251": { "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" }, "r252": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "505", "URI": "http://asc.fasb.org/topic&trid=2208762" }, "r253": { "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" }, "r254": { "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" }, "r255": { "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" }, "r256": { "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" }, "r257": { "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" }, "r258": { "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" }, "r259": { "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" }, "r26": { "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" }, "r260": { "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" }, "r261": { "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" }, "r262": { "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" }, "r263": { "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" }, "r264": { "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" }, "r265": { "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" }, "r266": { "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" }, "r267": { "Name": "Accounting Standards Codification", "Paragraph": "91", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121551570&loc=SL49130690-203046-203046" }, "r268": { "Name": "Accounting Standards Codification", "Paragraph": "91", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121551570&loc=SL49130690-203046-203046" }, "r269": { "Name": "Accounting Standards Codification", "Paragraph": "91", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Subparagraph": "(f)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121551570&loc=SL49130690-203046-203046" }, "r27": { "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" }, "r270": { "Name": "Accounting Standards Codification", "Paragraph": "91", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Subparagraph": "(g)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=121551570&loc=SL49130690-203046-203046" }, "r271": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "606", "URI": "http://asc.fasb.org/topic&trid=49130388" }, "r272": { "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" }, "r273": { "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" }, "r274": { "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" }, "r275": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=109237824&loc=d3e1731-114919" }, "r276": { "Name": "Accounting Standards Codification", "Paragraph": "3A", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=109237824&loc=SL108413299-114919" }, "r277": { "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" }, "r278": { "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" }, "r279": { "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" }, "r28": { "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" }, "r280": { "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" }, "r281": { "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" }, "r282": { "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" }, "r283": { "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" }, "r284": { "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" }, "r285": { "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" }, "r286": { "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" }, "r287": { "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" }, "r288": { "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" }, "r289": { "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" }, "r29": { "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" }, "r290": { "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" }, "r291": { "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" }, "r292": { "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" }, "r293": { "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" }, "r294": { "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" }, "r295": { "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" }, "r296": { "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" }, "r297": { "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" }, "r298": { "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" }, "r299": { "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" }, "r3": { "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" }, "r30": { "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" }, "r300": { "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" }, "r301": { "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" }, "r302": { "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" }, "r303": { "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" }, "r304": { "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" }, "r305": { "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" }, "r306": { "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" }, "r307": { "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" }, "r308": { "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" }, "r309": { "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" }, "r31": { "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" }, "r310": { "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" }, "r311": { "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" }, "r312": { "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" }, "r313": { "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" }, "r314": { "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" }, "r315": { "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" }, "r316": { "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" }, "r317": { "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" }, "r318": { "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" }, "r319": { "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" }, "r32": { "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" }, "r320": { "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" }, "r321": { "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" }, "r322": { "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" }, "r323": { "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" }, "r324": { "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" }, "r325": { "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" }, "r326": { "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" }, "r327": { "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" }, "r328": { "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" }, "r329": { "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" }, "r33": { "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" }, "r330": { "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" }, "r331": { "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" }, "r332": { "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" }, "r333": { "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" }, "r334": { "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" }, "r335": { "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" }, "r336": { "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" }, "r337": { "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" }, "r338": { "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" }, "r339": { "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" }, "r34": { "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" }, "r340": { "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" }, "r341": { "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" }, "r342": { "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" }, "r343": { "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" }, "r344": { "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" }, "r345": { "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" }, "r346": { "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" }, "r347": { "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" }, "r348": { "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" }, "r349": { "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" }, "r35": { "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" }, "r350": { "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" }, "r351": { "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" }, "r352": { "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" }, "r353": { "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" }, "r354": { "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" }, "r355": { "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" }, "r356": { "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" }, "r357": { "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" }, "r358": { "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" }, "r359": { "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" }, "r36": { "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" }, "r360": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "715", "URI": "http://asc.fasb.org/topic&trid=2235017" }, "r361": { "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" }, "r362": { "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" }, "r363": { "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" }, "r364": { "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" }, "r365": { "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" }, "r366": { "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" }, "r367": { "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" }, "r368": { "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" }, "r369": { "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" }, "r37": { "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" }, "r370": { "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" }, "r371": { "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" }, "r372": { "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" }, "r373": { "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" }, "r374": { "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" }, "r375": { "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" }, "r376": { "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" }, "r377": { "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" }, "r378": { "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" }, "r379": { "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" }, "r38": { "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" }, "r380": { "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" }, "r381": { "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" }, "r382": { "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" }, "r383": { "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" }, "r384": { "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" }, "r385": { "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" }, "r386": { "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" }, "r387": { "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" }, "r388": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "718", "URI": "http://asc.fasb.org/topic&trid=2228938" }, "r389": { "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" }, "r39": { "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" }, "r390": { "Name": "Accounting Standards Codification", "Paragraph": "27", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=120406818&loc=d3e32262-109318" }, "r391": { "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" }, "r392": { "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" }, "r393": { "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" }, "r394": { "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" }, "r395": { "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" }, "r396": { "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" }, "r397": { "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" }, "r398": { "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" }, "r399": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(d)(2)", "Topic": "740" }, "r4": { "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" }, "r40": { "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" }, "r400": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(d)(3)", "Topic": "740" }, "r401": { "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" }, "r402": { "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" }, "r403": { "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" }, "r404": { "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" }, "r405": { "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" }, "r406": { "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" }, "r407": { "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" }, "r408": { "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" }, "r409": { "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" }, "r41": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.12)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r410": { "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" }, "r411": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "740", "URI": "http://asc.fasb.org/topic&trid=2144680" }, "r412": { "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" }, "r413": { "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" }, "r414": { "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" }, "r415": { "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" }, "r416": { "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" }, "r417": { "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" }, "r418": { "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" }, "r419": { "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" }, "r42": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.13(b))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r420": { "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" }, "r421": { "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" }, "r422": { "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" }, "r423": { "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" }, "r424": { "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" }, "r425": { "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" }, "r426": { "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" }, "r427": { "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" }, "r428": { "Name": "Accounting Standards Codification", "Paragraph": "6A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=SL6742756-110258" }, "r429": { "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" }, "r43": { "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" }, "r430": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=99377092&loc=SL75136599-209740" }, "r431": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=116690757&loc=d3e13220-108610" }, "r432": { "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" }, "r433": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=121572278&loc=d3e13467-108611" }, "r434": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=121572278&loc=d3e13476-108611" }, "r435": { "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" }, "r436": { "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" }, "r437": { "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" }, "r438": { "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" }, "r439": { "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" }, "r44": { "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" }, "r440": { "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" }, "r441": { "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" }, "r442": { "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" }, "r443": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=6450520&loc=d3e32618-110901" }, "r444": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "835", "URI": "http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391" }, "r445": { "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" }, "r446": { "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" }, "r447": { "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" }, "r448": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "855", "URI": "http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662" }, "r449": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(2)(i)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719" }, "r45": { "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" }, "r450": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(2)(ii)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719" }, "r451": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(3)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719" }, "r452": { "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" }, "r453": { "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" }, "r454": { "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" }, "r455": { "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" }, "r456": { "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" }, "r457": { "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" }, "r458": { "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" }, "r459": { "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" }, "r46": { "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" }, "r460": { "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" }, "r461": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719" }, "r462": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=66007379&loc=d3e113888-111728" }, "r463": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=109249958&loc=SL34722452-111729" }, "r464": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(1)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122625-111746" }, "r465": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(2)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122625-111746" }, "r466": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(3)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122625-111746" }, "r467": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(4)(i)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122625-111746" }, "r468": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(1)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122739-111746" }, "r469": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(2)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122739-111746" }, "r47": { "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" }, "r470": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(3)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122739-111746" }, "r471": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(4)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122739-111746" }, "r472": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(5)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122739-111746" }, "r473": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(6)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122739-111746" }, "r474": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(7)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122739-111746" }, "r475": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(b)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122739-111746" }, "r476": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(e)(1)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122739-111746" }, "r477": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(e)(2)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122739-111746" }, "r478": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(e)(3)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=116651436&loc=d3e122739-111746" }, "r479": { "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" }, "r48": { "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" }, "r480": { "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" }, "r481": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "25", "SubTopic": "20", "Topic": "940", "URI": "http://asc.fasb.org/extlink&oid=68072869&loc=d3e41242-110953" }, "r482": { "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" }, "r483": { "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" }, "r484": { "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" }, "r485": { "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" }, "r486": { "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" }, "r487": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(6))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r488": { "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" }, "r489": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04(15))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r49": { "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" }, "r490": { "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" }, "r491": { "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" }, "r492": { "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" }, "r493": { "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" }, "r494": { "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" }, "r495": { "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" }, "r496": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(5))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r497": { "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" }, "r498": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(16)(a)(1))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r499": { "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" }, "r5": { "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" }, "r50": { "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" }, "r500": { "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" }, "r501": { "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" }, "r502": { "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" }, "r503": { "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" }, "r504": { "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" }, "r505": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03.1(f,g))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r506": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03.1(h))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r507": { "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" }, "r508": { "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" }, "r509": { "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" }, "r51": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.22(a)(1))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r510": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.7-04(8))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263" }, "r511": { "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" }, "r512": { "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" }, "r513": { "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" }, "r514": { "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" }, "r515": { "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" }, "r516": { "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" }, "r517": { "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" }, "r518": { "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" }, "r519": { "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" }, "r52": { "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" }, "r520": { "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" }, "r521": { "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" }, "r522": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "80", "Subparagraph": "(e)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=121641442&loc=d3e19393-158473" }, "r523": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "340", "Topic": "980", "URI": "http://asc.fasb.org/extlink&oid=6499975&loc=d3e44250-110382" }, "r524": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "340", "Topic": "980", "URI": "http://asc.fasb.org/extlink&oid=6499975&loc=d3e44264-110382" }, "r525": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "25", "SubTopic": "405", "Topic": "980", "URI": "http://asc.fasb.org/extlink&oid=6500807&loc=d3e48068-110394" }, "r526": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "715", "Topic": "980", "URI": "http://asc.fasb.org/extlink&oid=6501251&loc=d3e52485-110419" }, "r527": { "Name": "Exchange Act", "Number": "240", "Publisher": "SEC", "Section": "12", "Subsection": "b" }, "r528": { "Name": "Exchange Act", "Number": "240", "Publisher": "SEC", "Section": "12", "Subsection": "d1-1" }, "r529": { "Name": "Form 10-Q", "Number": "240", "Publisher": "SEC", "Section": "308", "Subsection": "a" }, "r53": { "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" }, "r530": { "Name": "Forms 10-K, 10-Q, 20-F", "Number": "240", "Publisher": "SEC", "Section": "13", "Subsection": "a-1" }, "r531": { "Name": "Regulation 12B", "Number": "240", "Publisher": "SEC", "Section": "12", "Subsection": "b-2" }, "r532": { "Name": "Regulation S-T", "Number": "232", "Publisher": "SEC", "Section": "405" }, "r54": { "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" }, "r55": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.26(b))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r56": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.28,29)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r57": { "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" }, "r58": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.3,4)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r59": { "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" }, "r6": { "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" }, "r60": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.6(a)(4),(5))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r61": { "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" }, "r62": { "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" }, "r63": { "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" }, "r64": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "210", "URI": "http://asc.fasb.org/topic&trid=2122208" }, "r65": { "Name": "Accounting Standards Codification", "Paragraph": "10A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669646-108580" }, "r66": { "Name": "Accounting Standards Codification", "Paragraph": "10A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(f)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669646-108580" }, "r67": { "Name": "Accounting Standards Codification", "Paragraph": "10A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(h)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669646-108580" }, "r68": { "Name": "Accounting Standards Codification", "Paragraph": "10A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(i)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL7669646-108580" }, "r69": { "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" }, "r7": { "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" }, "r70": { "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" }, "r71": { "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" }, "r72": { "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" }, "r73": { "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" }, "r74": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=d3e689-108580" }, "r75": { "Name": "Accounting Standards Codification", "Paragraph": "17A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=121641772&loc=SL34724391-108580" }, "r76": { "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" }, "r77": { "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" }, "r78": { "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" }, "r79": { "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" }, "r8": { "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" }, "r80": { "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" }, "r81": { "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" }, "r82": { "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" }, "r83": { "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" }, "r84": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(10))", "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(20))", "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(24))", "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(25))", "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)", "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 210.5-03.2(b))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227" }, "r9": { "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" }, "r90": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.3)", "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 210.5-03.9)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227" }, "r92": { "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" }, "r93": { "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" }, "r94": { "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" }, "r95": { "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" }, "r96": { "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" }, "r97": { "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" }, "r98": { "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" }, "r99": { "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" } }, "version": "2.1" }