{ "instance": { "d329221ds1.htm": { "axisCustom": 4, "axisStandard": 36, "contextCount": 357, "dts": { "calculationLink": { "local": [ "atip-20211231_cal.xml" ] }, "definitionLink": { "local": [ "atip-20211231_def.xml" ] }, "inline": { "local": [ "d329221ds1.htm" ] }, "labelLink": { "local": [ "atip-20211231_lab.xml" ] }, "presentationLink": { "local": [ "atip-20211231_pre.xml" ] }, "schema": { "local": [ "atip-20211231.xsd" ], "remote": [ "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/2005/xbrldt-2005.xsd", "http://www.xbrl.org/2006/ref-2006-02-27.xsd", "http://www.xbrl.org/lrr/arcrole/factExplanatory-2009-12-16.xsd", "http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd", "http://www.xbrl.org/lrr/role/net-2009-12-16.xsd", "http://www.xbrl.org/lrr/role/reference-2009-12-16.xsd", "https://www.xbrl.org/2020/extensible-enumerations-2.0.xsd", "https://www.xbrl.org/dtr/type/2020-01-21/types.xsd", "https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd", "https://xbrl.fasb.org/srt/2021/elts/srt-roles-2021-01-31.xsd", "https://xbrl.fasb.org/srt/2021/elts/srt-types-2021-01-31.xsd", "https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd", "https://xbrl.fasb.org/us-gaap/2021/elts/us-roles-2021-01-31.xsd", "https://xbrl.fasb.org/us-gaap/2021/elts/us-types-2021-01-31.xsd", "https://xbrl.sec.gov/country/2021/country-2021.xsd", "https://xbrl.sec.gov/currency/2021/currency-2021.xsd", "https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd", "https://xbrl.sec.gov/exch/2021/exch-2021.xsd", "https://xbrl.sec.gov/naics/2021/naics-2021.xsd", "https://xbrl.sec.gov/sic/2021/sic-2021.xsd", "https://xbrl.sec.gov/stpr/2021/stpr-2021.xsd" ] } }, "elementCount": 746, "entityCount": 1, "hidden": { "http://fasb.org/us-gaap/2021-01-31": 3, "http://xbrl.sec.gov/dei/2021q4": 2, "total": 5 }, "keyCustom": 95, "keyStandard": 357, "memberCustom": 47, "memberStandard": 58, "nsprefix": "atip", "nsuri": "http://ati.com/20211231", "report": { "R1": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "dei:DocumentType", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "true", "longName": "1001 - Document - Cover", "role": "http://ati.com/role/Cover", "shortName": "Cover", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "dei:DocumentType", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R10": { "firstAnchor": { "ancestors": [ "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "atip:ReverseRecapitalizationDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1010 - Disclosure - Business Combinations and Divestiture", "role": "http://ati.com/role/BusinessCombinationsAndDivestiture", "shortName": "Business Combinations and Divestiture", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "atip:ReverseRecapitalizationDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R100": { "firstAnchor": { "ancestors": [ "div", "td", "tr", "table", "srt:ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2020_AllowanceForCreditLossMemberusgaapValuationAllowancesAndReservesTypeAxis", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:ValuationAllowancesAndReservesBalance", "reportCount": 1, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1100 - Disclosure - Schedule II - Valuation and Qualifying Accounts (Details)", "role": "http://ati.com/role/ScheduleIiValuationAndQualifyingAccountsDetails", "shortName": "Schedule II - Valuation and Qualifying Accounts (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "div", "td", "tr", "table", "srt:ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2018_AllowanceForCreditLossMemberusgaapValuationAllowancesAndReservesTypeAxis", "decimals": "-3", "lang": null, "name": "us-gaap:ValuationAllowancesAndReservesBalance", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" } }, "R11": { "firstAnchor": { "ancestors": [ "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:RevenueFromContractWithCustomerTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1011 - Disclosure - Revenue from Contracts with Customers", "role": "http://ati.com/role/RevenueFromContractsWithCustomers", "shortName": "Revenue from Contracts with Customers", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:RevenueFromContractWithCustomerTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R12": { "firstAnchor": { "ancestors": [ "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:GoodwillAndIntangibleAssetsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1012 - Disclosure - Goodwill, Trade Name and Other Intangible Assets", "role": "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssets", "shortName": "Goodwill, Trade Name and Other Intangible Assets", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:GoodwillAndIntangibleAssetsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R13": { "firstAnchor": { "ancestors": [ "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1013 - Disclosure - Property and Equipment", "role": "http://ati.com/role/PropertyAndEquipment", "shortName": "Property and Equipment", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R14": { "firstAnchor": { "ancestors": [ "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:AccountsPayableAccruedLiabilitiesAndOtherLiabilitiesDisclosureCurrentTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1014 - Disclosure - Accrued Expenses and Other Liabilities", "role": "http://ati.com/role/AccruedExpensesAndOtherLiabilities", "shortName": "Accrued Expenses and Other Liabilities", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:AccountsPayableAccruedLiabilitiesAndOtherLiabilitiesDisclosureCurrentTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R15": { "firstAnchor": { "ancestors": [ "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LongTermDebtTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1015 - Disclosure - Borrowings", "role": "http://ati.com/role/Borrowings", "shortName": "Borrowings", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LongTermDebtTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R16": { "firstAnchor": { "ancestors": [ "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DefinedContributionPlanTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1016 - Disclosure - Employee Benefit Plans", "role": "http://ati.com/role/EmployeeBenefitPlans", "shortName": "Employee Benefit Plans", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DefinedContributionPlanTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R17": { "firstAnchor": { "ancestors": [ "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1017 - Disclosure - Share-Based Compensation", "role": "http://ati.com/role/ShareBasedCompensation", "shortName": "Share-Based Compensation", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R18": { "firstAnchor": { "ancestors": [ "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:StockholdersEquityNoteDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1018 - Disclosure - Stockholders' Equity", "role": "http://ati.com/role/StockholdersEquity", "shortName": "Stockholders' Equity", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:StockholdersEquityNoteDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R19": { "firstAnchor": { "ancestors": [ "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:PreferredStockTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1019 - Disclosure - Redeemable Preferred Stock", "role": "http://ati.com/role/RedeemablePreferredStock", "shortName": "Redeemable Preferred Stock", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:PreferredStockTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R2": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "div", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1002 - Statement - Consolidated Balance Sheets", "role": "http://ati.com/role/ConsolidatedBalanceSheets", "shortName": "Consolidated Balance Sheets", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "td", "tr", "table", "div", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" } }, "R20": { "firstAnchor": { "ancestors": [ "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "atip:WarrantAndRightsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1020 - Disclosure - Warrant Liability", "role": "http://ati.com/role/WarrantLiability", "shortName": "Warrant Liability", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "atip:WarrantAndRightsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R21": { "firstAnchor": { "ancestors": [ "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DerivativesAndFairValueTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1021 - Disclosure - Contingent Common Shares Liability", "role": "http://ati.com/role/ContingentCommonSharesLiability", "shortName": "Contingent Common Shares Liability", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DerivativesAndFairValueTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R22": { "firstAnchor": { "ancestors": [ "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FairValueDisclosuresTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1022 - Disclosure - Fair Value Measurements", "role": "http://ati.com/role/FairValueMeasurements", "shortName": "Fair Value Measurements", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FairValueDisclosuresTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R23": { "firstAnchor": { "ancestors": [ "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:IncomeTaxDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1023 - Disclosure - Income Taxes", "role": "http://ati.com/role/IncomeTaxes", "shortName": "Income Taxes", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:IncomeTaxDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R24": { "firstAnchor": { "ancestors": [ "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LesseeOperatingLeasesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1024 - Disclosure - Leases", "role": "http://ati.com/role/Leases", "shortName": "Leases", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LesseeOperatingLeasesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R25": { "firstAnchor": { "ancestors": [ "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1025 - Disclosure - Commitments and Contingencies", "role": "http://ati.com/role/CommitmentsAndContingencies", "shortName": "Commitments and Contingencies", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R26": { "firstAnchor": { "ancestors": [ "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:EarningsPerShareTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1026 - Disclosure - (Loss) Earnings per Share", "role": "http://ati.com/role/LossEarningsPerShare", "shortName": "(Loss) Earnings per Share", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:EarningsPerShareTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R27": { "firstAnchor": { "ancestors": [ "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:QuarterlyFinancialInformationTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1027 - Disclosure - Selected Quarterly Financial Data (Unaudited)", "role": "http://ati.com/role/SelectedQuarterlyFinancialDataUnaudited", "shortName": "Selected Quarterly Financial Data (Unaudited)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:QuarterlyFinancialInformationTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R28": { "firstAnchor": { "ancestors": [ "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SubsequentEventsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1028 - Disclosure - Subsequent Events", "role": "http://ati.com/role/SubsequentEvents", "shortName": "Subsequent Events", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SubsequentEventsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R29": { "firstAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "srt:ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1029 - Disclosure - Schedule II - Valuation and Qualifying Accounts", "role": "http://ati.com/role/ScheduleIiValuationAndQualifyingAccounts", "shortName": "Schedule II - Valuation and Qualifying Accounts", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "srt:ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R3": { "firstAnchor": { "ancestors": [ "div", "td", "tr", "table", "div", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1003 - Statement - Consolidated Balance Sheets (Parenthetical)", "role": "http://ati.com/role/ConsolidatedBalanceSheetsParenthetical", "shortName": "Consolidated Balance Sheets (Parenthetical)", "subGroupType": "parenthetical", "uniqueAnchor": { "ancestors": [ "div", "td", "tr", "table", "div", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" } }, "R30": { "firstAnchor": { "ancestors": [ "us-gaap:BasisOfPresentationAndSignificantAccountingPoliciesTextBlock", "div", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:BasisOfAccountingPolicyPolicyTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1030 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies (Policies)", "role": "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPolicies", "shortName": "Basis of Presentation and Summary of Significant Accounting Policies (Policies)", "subGroupType": "policies", "uniqueAnchor": { "ancestors": [ "us-gaap:BasisOfPresentationAndSignificantAccountingPoliciesTextBlock", "div", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:BasisOfAccountingPolicyPolicyTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R31": { "firstAnchor": { "ancestors": [ "div", "td", "tr", "table", "ix:continuation", "div", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "atip:ScheduleOfGovernmentAssistanceTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1031 - Disclosure - Overview of the Company (Tables)", "role": "http://ati.com/role/OverviewOfTheCompanyTables", "shortName": "Overview of the Company (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "div", "td", "tr", "table", "ix:continuation", "div", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "atip:ScheduleOfGovernmentAssistanceTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R32": { "firstAnchor": { "ancestors": [ "div", "us-gaap:PropertyPlantAndEquipmentPolicyTextBlock", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "atip:DisclosureOfUsefulLivesOfPropertyPlantAndEquipmentTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1032 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies (Tables)", "role": "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesTables", "shortName": "Basis of Presentation and Summary of Significant Accounting Policies (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "div", "us-gaap:PropertyPlantAndEquipmentPolicyTextBlock", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "atip:DisclosureOfUsefulLivesOfPropertyPlantAndEquipmentTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R33": { "firstAnchor": { "ancestors": [ "atip:ReverseRecapitalizationDisclosureTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "atip:ScheduleOfReverseRecapitalizationTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1033 - Disclosure - Business Combinations and Divestiture (Tables)", "role": "http://ati.com/role/BusinessCombinationsAndDivestitureTables", "shortName": "Business Combinations and Divestiture (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "atip:ReverseRecapitalizationDisclosureTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "atip:ScheduleOfReverseRecapitalizationTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R34": { "firstAnchor": { "ancestors": [ "us-gaap:RevenueFromContractWithCustomerTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DisaggregationOfRevenueTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1034 - Disclosure - Revenue from Contracts with Customers (Tables)", "role": "http://ati.com/role/RevenueFromContractsWithCustomersTables", "shortName": "Revenue from Contracts with Customers (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "us-gaap:RevenueFromContractWithCustomerTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DisaggregationOfRevenueTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R35": { "firstAnchor": { "ancestors": [ "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfGoodwillTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1035 - Disclosure - Goodwill, Trade Name and Other Intangible Assets (Tables)", "role": "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssetsTables", "shortName": "Goodwill, Trade Name and Other Intangible Assets (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfGoodwillTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R36": { "firstAnchor": { "ancestors": [ "us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:PropertyPlantAndEquipmentTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1036 - Disclosure - Property and Equipment (Tables)", "role": "http://ati.com/role/PropertyAndEquipmentTables", "shortName": "Property and Equipment (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:PropertyPlantAndEquipmentTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R37": { "firstAnchor": { "ancestors": [ "us-gaap:AccountsPayableAccruedLiabilitiesAndOtherLiabilitiesDisclosureCurrentTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfAccruedLiabilitiesTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1037 - Disclosure - Accrued Expenses and Other Liabilities (Tables)", "role": "http://ati.com/role/AccruedExpensesAndOtherLiabilitiesTables", "shortName": "Accrued Expenses and Other Liabilities (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "us-gaap:AccountsPayableAccruedLiabilitiesAndOtherLiabilitiesDisclosureCurrentTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfAccruedLiabilitiesTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R38": { "firstAnchor": { "ancestors": [ "us-gaap:LongTermDebtTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfDebtInstrumentsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1038 - Disclosure - Borrowings (Tables)", "role": "http://ati.com/role/BorrowingsTables", "shortName": "Borrowings (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "us-gaap:LongTermDebtTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfDebtInstrumentsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R39": { "firstAnchor": { "ancestors": [ "us-gaap:DefinedContributionPlanTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DefinedContributionPlanDisclosuresTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1039 - Disclosure - Employee Benefit Plans (Tables)", "role": "http://ati.com/role/EmployeeBenefitPlansTables", "shortName": "Employee Benefit Plans (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "us-gaap:DefinedContributionPlanTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DefinedContributionPlanDisclosuresTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R4": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "div", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax", "reportCount": 1, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1004 - Statement - Consolidated Statements of Operations", "role": "http://ati.com/role/ConsolidatedStatementsOfOperations", "shortName": "Consolidated Statements of Operations", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "td", "tr", "table", "div", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": "-3", "lang": null, "name": "us-gaap:LaborAndRelatedExpense", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" } }, "R40": { "firstAnchor": { "ancestors": [ "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1040 - Disclosure - Share-Based Compensation (Tables)", "role": "http://ati.com/role/ShareBasedCompensationTables", "shortName": "Share-Based Compensation (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R41": { "firstAnchor": { "ancestors": [ "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfCapitalUnitsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1041 - Disclosure - Stockholders' Equity (Tables)", "role": "http://ati.com/role/StockholdersEquityTables", "shortName": "Stockholders' Equity (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfCapitalUnitsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R42": { "firstAnchor": { "ancestors": [ "atip:WarrantAndRightsDisclosureTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "atip:ScheduleOfWarrantLiabilitiesTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1042 - Disclosure - Warrant Liability (Tables)", "role": "http://ati.com/role/WarrantLiabilityTables", "shortName": "Warrant Liability (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "atip:WarrantAndRightsDisclosureTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "atip:ScheduleOfWarrantLiabilitiesTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R43": { "firstAnchor": { "ancestors": [ "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1043 - Disclosure - Fair Value Measurements (Tables)", "role": "http://ati.com/role/FairValueMeasurementsTables", "shortName": "Fair Value Measurements (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R44": { "firstAnchor": { "ancestors": [ "us-gaap:IncomeTaxDisclosureTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1044 - Disclosure - Income Taxes (Tables)", "role": "http://ati.com/role/IncomeTaxesTables", "shortName": "Income Taxes (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "us-gaap:IncomeTaxDisclosureTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R45": { "firstAnchor": { "ancestors": [ "div", "us-gaap:LesseeOperatingLeasesTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LeaseCostTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1045 - Disclosure - Leases (Tables)", "role": "http://ati.com/role/LeasesTables", "shortName": "Leases (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "div", "us-gaap:LesseeOperatingLeasesTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LeaseCostTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R46": { "firstAnchor": { "ancestors": [ "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1046 - Disclosure - (Loss) Earnings per Share (Tables)", "role": "http://ati.com/role/LossEarningsPerShareTables", "shortName": "(Loss) Earnings per Share (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R47": { "firstAnchor": { "ancestors": [ "us-gaap:QuarterlyFinancialInformationTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1047 - Disclosure - Selected Quarterly Financial Data (Unaudited) (Tables)", "role": "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedTables", "shortName": "Selected Quarterly Financial Data (Unaudited) (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "us-gaap:QuarterlyFinancialInformationTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R48": { "firstAnchor": { "ancestors": [ "div", "us-gaap:NatureOfOperations", "div", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2021", "decimals": "INF", "first": true, "lang": null, "name": "us-gaap:NumberOfStores", "reportCount": 1, "unique": true, "unitRef": "Unit_clinic", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1048 - Disclosure - Overview of the Company - Narrative (Details)", "role": "http://ati.com/role/OverviewOfTheCompanyNarrativeDetails", "shortName": "Overview of the Company - Narrative (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "div", "us-gaap:NatureOfOperations", "div", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2021", "decimals": "INF", "first": true, "lang": null, "name": "us-gaap:NumberOfStores", "reportCount": 1, "unique": true, "unitRef": "Unit_clinic", "xsiNil": "false" } }, "R49": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "ix:continuation", "ix:continuation", "div", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P10_01_2020To12_31_2020_GovernmentAssistanceCARESActProviderReliefFundMemberATIPGovernmentAssistanceAxis", "decimals": "-5", "first": true, "lang": null, "name": "atip:ProceedsFromGovernmentAssistance", "reportCount": 1, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1049 - Disclosure - Overview of the Company - General Distributions (Details)", "role": "http://ati.com/role/OverviewOfTheCompanyGeneralDistributionsDetails", "shortName": "Overview of the Company - General Distributions (Details)", "subGroupType": "details", "uniqueAnchor": null }, "R5": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "div", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:ProfitLoss", "reportCount": 1, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1005 - Statement - Consolidated Statements of Comprehensive Income (Loss)", "role": "http://ati.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss", "shortName": "Consolidated Statements of Comprehensive Income (Loss)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "td", "tr", "table", "div", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": "-3", "lang": null, "name": "us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" } }, "R50": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "div", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:Assets", "reportCount": 1, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1050 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies (Details)", "role": "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails", "shortName": "Basis of Presentation and Summary of Significant Accounting Policies (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "div", "us-gaap:SegmentReportingPolicyPolicyTextBlock", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": "0", "lang": null, "name": "us-gaap:NumberOfOperatingSegments", "reportCount": 1, "unique": true, "unitRef": "Unit_segment", "xsiNil": "false" } }, "R51": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock", "us-gaap:GoodwillAndIntangibleAssetsPolicyTextBlock", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021_MinimumMembersrtRangeAxis_NoncompeteAgreementsMemberusgaapFiniteLivedIntangibleAssetsByMajorClassAxis", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FiniteLivedIntangibleAssetUsefulLife", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1051 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies - Intangible Assets (Details)", "role": "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesIntangibleAssetsDetails", "shortName": "Basis of Presentation and Summary of Significant Accounting Policies - Intangible Assets (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock", "us-gaap:GoodwillAndIntangibleAssetsPolicyTextBlock", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021_MinimumMembersrtRangeAxis_NoncompeteAgreementsMemberusgaapFiniteLivedIntangibleAssetsByMajorClassAxis", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FiniteLivedIntangibleAssetUsefulLife", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R52": { "firstAnchor": { "ancestors": [ "div", "us-gaap:AdvertisingCostsPolicyTextBlock", "ix:continuation", "div", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021_SellingGeneralAndAdministrativeExpensesMemberusgaapIncomeStatementLocationAxis", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:AdvertisingExpense", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1052 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies - Advertising costs (Details)", "role": "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesAdvertisingCostsDetails", "shortName": "Basis of Presentation and Summary of Significant Accounting Policies - Advertising costs (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "div", "us-gaap:AdvertisingCostsPolicyTextBlock", "ix:continuation", "div", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021_SellingGeneralAndAdministrativeExpensesMemberusgaapIncomeStatementLocationAxis", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:AdvertisingExpense", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" } }, "R53": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "ix:continuation", "us-gaap:PropertyPlantAndEquipmentPolicyTextBlock", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021_EquipmentMemberusgaapPropertyPlantAndEquipmentByTypeAxis_MinimumMembersrtRangeAxis", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:PropertyPlantAndEquipmentUsefulLife", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1053 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies - Property and Equipment (Details)", "role": "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPropertyAndEquipmentDetails", "shortName": "Basis of Presentation and Summary of Significant Accounting Policies - Property and Equipment (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "table", "ix:continuation", "us-gaap:PropertyPlantAndEquipmentPolicyTextBlock", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021_EquipmentMemberusgaapPropertyPlantAndEquipmentByTypeAxis_MinimumMembersrtRangeAxis", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:PropertyPlantAndEquipmentUsefulLife", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R54": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "atip:ScheduleOfReverseRecapitalizationTableTextBlock", "atip:ReverseRecapitalizationDisclosureTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P06_16_2021To06_16_2021", "decimals": "-3", "first": true, "lang": null, "name": "atip:StockConvertedReverseRecapitalizationShares", "reportCount": 1, "unitRef": "Unit_shares", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1054 - Disclosure - Business Combinations and Divestiture - Narrative (Details)", "role": "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "shortName": "Business Combinations and Divestiture - Narrative (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "div", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn06_16_2021", "decimals": "-5", "lang": null, "name": "atip:FairValueDisclosureWarrantLiability", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" } }, "R55": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "atip:ScheduleOfReverseRecapitalizationTableTextBlock", "atip:ReverseRecapitalizationDisclosureTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn06_16_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:CommonStockSharesOutstanding", "reportCount": 1, "unitRef": "Unit_shares", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1055 - Disclosure - Business Combinations and Divestiture - Summary of Shares Issued and Outstanding (Details)", "role": "http://ati.com/role/BusinessCombinationsAndDivestitureSummaryOfSharesIssuedAndOutstandingDetails", "shortName": "Business Combinations and Divestiture - Summary of Shares Issued and Outstanding (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "table", "atip:ScheduleOfReverseRecapitalizationTableTextBlock", "atip:ReverseRecapitalizationDisclosureTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P06_16_2021To06_16_2021", "decimals": "-3", "lang": null, "name": "us-gaap:StockIssuedDuringPeriodSharesAcquisitions", "reportCount": 1, "unique": true, "unitRef": "Unit_shares", "xsiNil": "false" } }, "R56": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "ix:continuation", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P06_16_2021To06_16_2021", "decimals": "-3", "first": true, "lang": null, "name": "atip:CashAcquiredThroughReverseRecapitalization", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1056 - Disclosure - Business Combinations and Divestiture - Flow of Funds (Details)", "role": "http://ati.com/role/BusinessCombinationsAndDivestitureFlowOfFundsDetails", "shortName": "Business Combinations and Divestiture - Flow of Funds (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "table", "ix:continuation", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P06_16_2021To06_16_2021", "decimals": "-3", "first": true, "lang": null, "name": "atip:CashAcquiredThroughReverseRecapitalization", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" } }, "R57": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock", "us-gaap:QuarterlyFinancialInformationTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P10_01_2021To12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax", "reportCount": 1, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1057 - Disclosure - Revenue from Contracts with Customers (Details)", "role": "http://ati.com/role/RevenueFromContractsWithCustomersDetails", "shortName": "Revenue from Contracts with Customers (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:DisaggregationOfRevenueTableTextBlock", "us-gaap:RevenueFromContractWithCustomerTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021_HealthCarePatientServiceMembersrtProductOrServiceAxis", "decimals": "INF", "lang": null, "name": "atip:RevenueFromContractWithCustomerExcludingAssessedTaxPercent", "reportCount": 1, "unique": true, "unitRef": "Unit_pure", "xsiNil": "false" } }, "R58": { "firstAnchor": { "ancestors": [ "div", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": "INF", "first": true, "lang": null, "name": "us-gaap:NumberOfReportingUnits", "reportCount": 1, "unique": true, "unitRef": "Unit_unit", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1058 - Disclosure - Goodwill, Trade Name and Other Intangible Assets - Narrative (Details)", "role": "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssetsNarrativeDetails", "shortName": "Goodwill, Trade Name and Other Intangible Assets - Narrative (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "div", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": "INF", "first": true, "lang": null, "name": "us-gaap:NumberOfReportingUnits", "reportCount": 1, "unique": true, "unitRef": "Unit_unit", "xsiNil": "false" } }, "R59": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "div", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2020", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:Goodwill", "reportCount": 1, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1059 - Disclosure - Goodwill, Trade Name and Other Intangible Assets - Goodwill (Details)", "role": "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssetsGoodwillDetails", "shortName": "Goodwill, Trade Name and Other Intangible Assets - Goodwill (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:ScheduleOfGoodwillTextBlock", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": "-3", "lang": null, "name": "us-gaap:GoodwillAcquiredDuringPeriod", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" } }, "R6": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "div", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2018_CommonStockMemberusgaapStatementEquityComponentsAxis", "decimals": "INF", "first": true, "lang": null, "name": "us-gaap:SharesIssued", "reportCount": 1, "unique": true, "unitRef": "Unit_shares", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1006 - Statement - Consolidated Statements of Changes in Stockholders' Equity", "role": "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity", "shortName": "Consolidated Statements of Changes in Stockholders' Equity", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "td", "tr", "table", "div", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2018_CommonStockMemberusgaapStatementEquityComponentsAxis", "decimals": "INF", "first": true, "lang": null, "name": "us-gaap:SharesIssued", "reportCount": 1, "unique": true, "unitRef": "Unit_shares", "xsiNil": "false" } }, "R60": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "div", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:IntangibleAssetsNetExcludingGoodwill", "reportCount": 1, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1060 - Disclosure - Goodwill, Trade Name and Other Intangible Assets - Intangible Assets (Details)", "role": "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssetsIntangibleAssetsDetails", "shortName": "Goodwill, Trade Name and Other Intangible Assets - Intangible Assets (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:ScheduleOfIndefiniteLivedIntangibleAssetsTableTextBlock", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2021_NoncompeteAgreementsMemberusgaapFiniteLivedIntangibleAssetsByMajorClassAxis", "decimals": "-3", "lang": null, "name": "us-gaap:FiniteLivedIntangibleAssetsGross", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" } }, "R61": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:PropertyPlantAndEquipmentTextBlock", "us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:PropertyPlantAndEquipmentGross", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1061 - Disclosure - Property and Equipment - Carrying Amount (Details)", "role": "http://ati.com/role/PropertyAndEquipmentCarryingAmountDetails", "shortName": "Property and Equipment - Carrying Amount (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:PropertyPlantAndEquipmentTextBlock", "us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:PropertyPlantAndEquipmentGross", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" } }, "R62": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "div", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:PropertyPlantAndEquipmentNet", "reportCount": 1, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1062 - Disclosure - Property and Equipment - Narrative (Details)", "role": "http://ati.com/role/PropertyAndEquipmentNarrativeDetails", "shortName": "Property and Equipment - Narrative (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "div", "us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2021_SoftwareAndSoftwareDevelopmentCostsMemberusgaapPropertyPlantAndEquipmentByTypeAxis", "decimals": "-5", "lang": null, "name": "us-gaap:PropertyPlantAndEquipmentNet", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" } }, "R63": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "ix:continuation", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:Depreciation", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1063 - Disclosure - Property and Equipment - Depreciation Expense (Details)", "role": "http://ati.com/role/PropertyAndEquipmentDepreciationExpenseDetails", "shortName": "Property and Equipment - Depreciation Expense (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "table", "ix:continuation", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:Depreciation", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" } }, "R64": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:ScheduleOfAccruedLiabilitiesTableTextBlock", "us-gaap:AccountsPayableAccruedLiabilitiesAndOtherLiabilitiesDisclosureCurrentTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:EmployeeRelatedLiabilitiesCurrent", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1064 - Disclosure - Accrued Expenses and Other Liabilities (Details)", "role": "http://ati.com/role/AccruedExpensesAndOtherLiabilitiesDetails", "shortName": "Accrued Expenses and Other Liabilities (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:ScheduleOfAccruedLiabilitiesTableTextBlock", "us-gaap:AccountsPayableAccruedLiabilitiesAndOtherLiabilitiesDisclosureCurrentTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:EmployeeRelatedLiabilitiesCurrent", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" } }, "R65": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:ScheduleOfMaturitiesOfLongTermDebtTableTextBlock", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:DebtInstrumentCarryingAmount", "reportCount": 1, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1065 - Disclosure - Borrowings - Long-term debt (Details)", "role": "http://ati.com/role/BorrowingsLongTermDebtDetails", "shortName": "Borrowings - Long-term debt (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:ScheduleOfDebtInstrumentsTextBlock", "us-gaap:LongTermDebtTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2021", "decimals": "-3", "lang": null, "name": "us-gaap:DebtInstrumentUnamortizedDiscount", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" } }, "R66": { "firstAnchor": { "ancestors": [ "div", "td", "tr", "table", "div", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:RepaymentsOfLongTermDebt", "reportCount": 1, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1066 - Disclosure - Borrowings - Narrative (Details)", "role": "http://ati.com/role/BorrowingsNarrativeDetails", "shortName": "Borrowings - Narrative (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "div", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021_LineOfCreditMemberusgaapLongtermDebtTypeAxis_RevolvingCreditFacilityMemberusgaapCreditFacilityAxis", "decimals": "3", "lang": null, "name": "us-gaap:LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage", "reportCount": 1, "unique": true, "unitRef": "Unit_pure", "xsiNil": "false" } }, "R67": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:ScheduleOfMaturitiesOfLongTermDebtTableTextBlock", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1067 - Disclosure - Borrowings - Maturities (Details)", "role": "http://ati.com/role/BorrowingsMaturitiesDetails", "shortName": "Borrowings - Maturities (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:ScheduleOfMaturitiesOfLongTermDebtTableTextBlock", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" } }, "R68": { "firstAnchor": { "ancestors": [ "div", "us-gaap:DefinedContributionPlanTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": "INF", "first": true, "lang": null, "name": "us-gaap:DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent", "reportCount": 1, "unique": true, "unitRef": "Unit_pure", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1068 - Disclosure - Employee Benefit Plans - Narratives (Details)", "role": "http://ati.com/role/EmployeeBenefitPlansNarrativesDetails", "shortName": "Employee Benefit Plans - Narratives (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "div", "us-gaap:DefinedContributionPlanTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": "INF", "first": true, "lang": null, "name": "us-gaap:DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent", "reportCount": 1, "unique": true, "unitRef": "Unit_pure", "xsiNil": "false" } }, "R69": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:DefinedContributionPlanDisclosuresTableTextBlock", "us-gaap:DefinedContributionPlanTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:DefinedContributionPlanCostRecognized", "reportCount": 1, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1069 - Disclosure - Employee Benefit Plans (Details)", "role": "http://ati.com/role/EmployeeBenefitPlansDetails", "shortName": "Employee Benefit Plans (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:DefinedContributionPlanDisclosuresTableTextBlock", "us-gaap:DefinedContributionPlanTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021_LaborAndRelatedExpenseMemberusgaapIncomeStatementLocationAxis", "decimals": "-3", "lang": null, "name": "us-gaap:DefinedContributionPlanCostRecognized", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" } }, "R7": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "div", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:ProfitLoss", "reportCount": 1, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1007 - Statement - Consolidated Statements of Cash Flows", "role": "http://ati.com/role/ConsolidatedStatementsOfCashFlows", "shortName": "Consolidated Statements of Cash Flows", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "td", "tr", "table", "div", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": "-3", "lang": null, "name": "us-gaap:DepreciationDepletionAndAmortization", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" } }, "R70": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:ScheduleOfCapitalUnitsTextBlock", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2021", "decimals": "0", "first": true, "lang": null, "name": "us-gaap:CommonStockCapitalSharesReservedForFutureIssuance", "reportCount": 1, "unitRef": "Unit_shares", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1070 - Disclosure - Share-Based Compensation - Narrative (Details)", "role": "http://ati.com/role/ShareBasedCompensationNarrativeDetails", "shortName": "Share-Based Compensation - Narrative (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "div", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2021_ATIPhysicalTherapy2021EquityIncentivePlanMemberusgaapPlanNameAxis", "decimals": "INF", "lang": null, "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized", "reportCount": 1, "unique": true, "unitRef": "Unit_shares", "xsiNil": "false" } }, "R71": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2020_ATIPhysicalTherapy2021EquityIncentivePlanMemberusgaapPlanNameAxis", "decimals": "INF", "first": true, "lang": null, "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber", "reportCount": 1, "unitRef": "Unit_shares", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1071 - Disclosure - Share-Based Compensation - Schedule of Share-based Payment Arrangement, Option, Activity (Details)", "role": "http://ati.com/role/ShareBasedCompensationScheduleOfShareBasedPaymentArrangementOptionActivityDetails", "shortName": "Share-Based Compensation - Schedule of Share-based Payment Arrangement, Option, Activity (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021_ATIPhysicalTherapy2021EquityIncentivePlanMemberusgaapPlanNameAxis", "decimals": "INF", "lang": null, "name": "us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised", "reportCount": 1, "unique": true, "unitRef": "Unit_shares", "xsiNil": "false" } }, "R72": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "ix:continuation", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021_ATIPhysicalTherapy2021EquityIncentivePlanMemberusgaapPlanNameAxis_EmployeeStockOptionMemberusgaapAwardTypeAxis", "decimals": "2", "first": true, "lang": null, "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue", "reportCount": 1, "unique": true, "unitRef": "Unit_USD_per_Share", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1072 - Disclosure - Share-Based Compensation - Valuation Assumption (Details)", "role": "http://ati.com/role/ShareBasedCompensationValuationAssumptionDetails", "shortName": "Share-Based Compensation - Valuation Assumption (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "table", "ix:continuation", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021_ATIPhysicalTherapy2021EquityIncentivePlanMemberusgaapPlanNameAxis_EmployeeStockOptionMemberusgaapAwardTypeAxis", "decimals": "2", "first": true, "lang": null, "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue", "reportCount": 1, "unique": true, "unitRef": "Unit_USD_per_Share", "xsiNil": "false" } }, "R73": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:ScheduleOfUnvestedRestrictedStockUnitsRollForwardTableTextBlock", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2020_RestrictedStockUnitsRSUMemberusgaapAwardTypeAxis", "decimals": "INF", "first": true, "lang": null, "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber", "reportCount": 1, "unitRef": "Unit_shares", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1073 - Disclosure - Share-Based Compensation - Activity Of Unvested RSUs And The Respective Weighted-Average Fair Value (Details)", "role": "http://ati.com/role/ShareBasedCompensationActivityOfUnvestedRsusAndTheRespectiveWeightedAverageFairValueDetails", "shortName": "Share-Based Compensation - Activity Of Unvested RSUs And The Respective Weighted-Average Fair Value (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:ScheduleOfUnvestedRestrictedStockUnitsRollForwardTableTextBlock", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2020_RestrictedStockUnitsRSUMemberusgaapAwardTypeAxis", "decimals": "0", "lang": null, "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue", "reportCount": 1, "unique": true, "unitRef": "Unit_USD_per_Share", "xsiNil": "false" } }, "R74": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "atip:ScheduleOfUnvestedRestrictedStockAwardsRollForwardTableTextBlock", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2020_RestrictedStockMemberusgaapAwardTypeAxis", "decimals": "INF", "first": true, "lang": null, "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber", "reportCount": 1, "unitRef": "Unit_shares", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1074 - Disclosure - Share-Based Compensation - Activity Of Unvested RSAs And The Respective Weighted-Average Fair Value (Details)", "role": "http://ati.com/role/ShareBasedCompensationActivityOfUnvestedRsasAndTheRespectiveWeightedAverageFairValueDetails", "shortName": "Share-Based Compensation - Activity Of Unvested RSAs And The Respective Weighted-Average Fair Value (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "table", "atip:ScheduleOfUnvestedRestrictedStockAwardsRollForwardTableTextBlock", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2020_RestrictedStockMemberusgaapAwardTypeAxis", "decimals": "0", "lang": null, "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue", "reportCount": 1, "unique": true, "unitRef": "Unit_USD_per_Share", "xsiNil": "false" } }, "R75": { "firstAnchor": { "ancestors": [ "div", "td", "tr", "table", "div", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2021", "decimals": "INF", "first": true, "lang": null, "name": "us-gaap:PreferredStockSharesAuthorized", "reportCount": 1, "unitRef": "Unit_shares", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1075 - Disclosure - Stockholders' Equity - Narrative (Details)", "role": "http://ati.com/role/StockholdersEquityNarrativeDetails", "shortName": "Stockholders' Equity - Narrative (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "div", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2021_CommonClassAMemberusgaapStatementClassOfStockAxis", "decimals": "INF", "lang": null, "name": "us-gaap:CommonStockSharesAuthorized", "reportCount": 1, "unique": true, "unitRef": "Unit_shares", "xsiNil": "false" } }, "R76": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:ScheduleOfCapitalUnitsTextBlock", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2021", "decimals": "0", "first": true, "lang": null, "name": "us-gaap:CommonStockCapitalSharesReservedForFutureIssuance", "reportCount": 1, "unitRef": "Unit_shares", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1076 - Disclosure - Stockholders' Equity - Reserved Shares (Details)", "role": "http://ati.com/role/StockholdersEquityReservedSharesDetails", "shortName": "Stockholders' Equity - Reserved Shares (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:ScheduleOfCapitalUnitsTextBlock", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2021_EarnoutSharesMemberusgaapAwardTypeAxis", "decimals": "0", "lang": null, "name": "us-gaap:CommonStockCapitalSharesReservedForFutureIssuance", "reportCount": 1, "unique": true, "unitRef": "Unit_shares", "xsiNil": "false" } }, "R77": { "firstAnchor": { "ancestors": [ "div", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P06_16_2021To06_16_2021", "decimals": "-5", "first": true, "lang": null, "name": "atip:GainLossOnCashSettlementForOutstandingPreferredStock", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1077 - Disclosure - Redeemable Preferred Stock (Details)", "role": "http://ati.com/role/RedeemablePreferredStockDetails", "shortName": "Redeemable Preferred Stock (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "div", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P06_16_2021To06_16_2021", "decimals": "-5", "first": true, "lang": null, "name": "atip:GainLossOnCashSettlementForOutstandingPreferredStock", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" } }, "R78": { "firstAnchor": { "ancestors": [ "div", "atip:WarrantAndRightsDisclosureTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2021", "decimals": "INF", "first": true, "lang": null, "name": "us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1", "reportCount": 1, "unitRef": "Unit_USD_per_Share", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1078 - Disclosure - Warrant Liability - Narrative (Details)", "role": "http://ati.com/role/WarrantLiabilityNarrativeDetails", "shortName": "Warrant Liability - Narrative (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "div", "atip:WarrantAndRightsDisclosureTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "lang": "en-US", "name": "atip:ClassOfWarrantOrRightExpirationPeriod", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R79": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "atip:ScheduleOfWarrantLiabilitiesTableTextBlock", "atip:WarrantAndRightsDisclosureTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn06_15_2021", "decimals": "-3", "first": true, "lang": null, "name": "atip:WarrantLiabilityNoncurrent", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1079 - Disclosure - Warrant Liability - Warrant Liability (Details)", "role": "http://ati.com/role/WarrantLiabilityWarrantLiabilityDetails", "shortName": "Warrant Liability - Warrant Liability (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "table", "atip:ScheduleOfWarrantLiabilitiesTableTextBlock", "atip:WarrantAndRightsDisclosureTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn06_15_2021", "decimals": "-3", "first": true, "lang": null, "name": "atip:WarrantLiabilityNoncurrent", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" } }, "R8": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:NatureOfOperations", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1008 - Disclosure - Overview of the Company", "role": "http://ati.com/role/OverviewOfTheCompany", "shortName": "Overview of the Company", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:NatureOfOperations", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R80": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "div", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:DerivativeLiabilitiesNoncurrent", "reportCount": 1, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1080 - Disclosure - Contingent Common Shares Liability (Details)", "role": "http://ati.com/role/ContingentCommonSharesLiabilityDetails", "shortName": "Contingent Common Shares Liability (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "div", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P06_16_2021To06_16_2021", "decimals": "INF", "lang": null, "name": "atip:NumberOfTranches", "reportCount": 1, "unique": true, "unitRef": "Unit_tranche", "xsiNil": "false" } }, "R81": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn06_16_2021_FairValueInputsLevel3MemberusgaapFairValueByFairValueHierarchyLevelAxis_MeasurementInputRiskFreeInterestRateMemberusgaapMeasurementInputTypeAxis", "decimals": "2", "first": true, "lang": null, "name": "atip:EarnoutSharesLiabilityMeasurementInput", "reportCount": 1, "unique": true, "unitRef": "Unit_pure", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1081 - Disclosure - Fair Value Measurements - Measurement Inputs (Details)", "role": "http://ati.com/role/FairValueMeasurementsMeasurementInputsDetails", "shortName": "Fair Value Measurements - Measurement Inputs (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn06_16_2021_FairValueInputsLevel3MemberusgaapFairValueByFairValueHierarchyLevelAxis_MeasurementInputRiskFreeInterestRateMemberusgaapMeasurementInputTypeAxis", "decimals": "2", "first": true, "lang": null, "name": "atip:EarnoutSharesLiabilityMeasurementInput", "reportCount": 1, "unique": true, "unitRef": "Unit_pure", "xsiNil": "false" } }, "R82": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:ScheduleOfDerivativeLiabilitiesAtFairValueTableTextBlock", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn06_15_2021_EarnoutSharesLiabilityMemberusgaapFairValueByLiabilityClassAxis", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1082 - Disclosure - Fair Value Measurements - Changes in Fair Value of Level 3 Instruments (Details)", "role": "http://ati.com/role/FairValueMeasurementsChangesInFairValueOfLevel3InstrumentsDetails", "shortName": "Fair Value Measurements - Changes in Fair Value of Level 3 Instruments (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:ScheduleOfDerivativeLiabilitiesAtFairValueTableTextBlock", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn06_15_2021_EarnoutSharesLiabilityMemberusgaapFairValueByLiabilityClassAxis", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" } }, "R83": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock", "us-gaap:IncomeTaxDisclosureTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:CurrentFederalTaxExpenseBenefit", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1083 - Disclosure - Income Taxes - Summary of Company's Provision for Income Tax Expense (Benefit) (Details)", "role": "http://ati.com/role/IncomeTaxesSummaryOfCompanysProvisionForIncomeTaxExpenseBenefitDetails", "shortName": "Income Taxes - Summary of Company's Provision for Income Tax Expense (Benefit) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock", "us-gaap:IncomeTaxDisclosureTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:CurrentFederalTaxExpenseBenefit", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" } }, "R84": { "firstAnchor": { "ancestors": [ "div", "us-gaap:IncomeTaxDisclosureTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": "3", "first": true, "lang": null, "name": "us-gaap:EffectiveIncomeTaxRateContinuingOperations", "reportCount": 1, "unitRef": "Unit_pure", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1084 - Disclosure - Income Taxes - Narrative (Details)", "role": "http://ati.com/role/IncomeTaxesNarrativeDetails", "shortName": "Income Taxes - Narrative (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "div", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2021_DomesticCountryMemberusgaapIncomeTaxAuthorityAxis", "decimals": "-5", "lang": null, "name": "us-gaap:OperatingLossCarryforwards", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" } }, "R85": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "ix:continuation", "us-gaap:IncomeTaxDisclosureTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1085 - Disclosure - Income Taxes - Differences Between The Federal Tax Rate And The Company's Effective Tax Rate (Details)", "role": "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails", "shortName": "Income Taxes - Differences Between The Federal Tax Rate And The Company's Effective Tax Rate (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "table", "ix:continuation", "us-gaap:IncomeTaxDisclosureTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" } }, "R86": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1086 - Disclosure - Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details)", "role": "http://ati.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails", "shortName": "Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" } }, "R87": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "ix:continuation", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2020", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:UnrecognizedTaxBenefits", "reportCount": 1, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1087 - Disclosure - Income Taxes - Unrecognized Tax Benefits (Details)", "role": "http://ati.com/role/IncomeTaxesUnrecognizedTaxBenefitsDetails", "shortName": "Income Taxes - Unrecognized Tax Benefits (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "table", "ix:continuation", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2018", "decimals": "-3", "lang": null, "name": "us-gaap:UnrecognizedTaxBenefits", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" } }, "R88": { "firstAnchor": { "ancestors": [ "div", "us-gaap:LesseeOperatingLeasesTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2020To12_31_2020", "decimals": "-5", "first": true, "lang": null, "name": "atip:LesseeLeaseTerminationCosts", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1088 - Disclosure - Leases - Narrative (Details)", "role": "http://ati.com/role/LeasesNarrativeDetails", "shortName": "Leases - Narrative (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "div", "us-gaap:LesseeOperatingLeasesTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2020To12_31_2020", "decimals": "-5", "first": true, "lang": null, "name": "atip:LesseeLeaseTerminationCosts", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" } }, "R89": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "ix:continuation", "us-gaap:LesseeOperatingLeasesTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:OperatingLeaseCost", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1089 - Disclosure - Leases - Lease Cost (Details)", "role": "http://ati.com/role/LeasesLeaseCostDetails", "shortName": "Leases - Lease Cost (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "table", "ix:continuation", "us-gaap:LesseeOperatingLeasesTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:OperatingLeaseCost", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" } }, "R9": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:BasisOfPresentationAndSignificantAccountingPoliciesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1009 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies", "role": "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPolicies", "shortName": "Basis of Presentation and Summary of Significant Accounting Policies", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:BasisOfPresentationAndSignificantAccountingPoliciesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R90": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "ix:continuation", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:OperatingLeasePayments", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1090 - Disclosure - Leases - Supplemental Cash Flow (Details)", "role": "http://ati.com/role/LeasesSupplementalCashFlowDetails", "shortName": "Leases - Supplemental Cash Flow (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "table", "ix:continuation", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:OperatingLeasePayments", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" } }, "R91": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "ix:continuation", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:OperatingLeaseWeightedAverageRemainingLeaseTerm1", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1091 - Disclosure - Leases - Other Information (Details)", "role": "http://ati.com/role/LeasesOtherInformationDetails", "shortName": "Leases - Other Information (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "table", "ix:continuation", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2021", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:OperatingLeaseWeightedAverageRemainingLeaseTerm1", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R92": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1092 - Disclosure - Leases - Maturity (Details)", "role": "http://ati.com/role/LeasesMaturityDetails", "shortName": "Leases - Maturity (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" } }, "R93": { "firstAnchor": { "ancestors": [ "div", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2021", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:ContractualObligation", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1093 - Disclosure - Commitments and Contingencies (Details)", "role": "http://ati.com/role/CommitmentsAndContingenciesDetails", "shortName": "Commitments and Contingencies (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "div", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2021", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:ContractualObligation", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" } }, "R94": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock", "us-gaap:QuarterlyFinancialInformationTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P10_01_2021To12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:ProfitLoss", "reportCount": 1, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1094 - Disclosure - (Loss) Earnings per Share - (Loss) Earnings per Share Calculation (Details)", "role": "http://ati.com/role/LossEarningsPerShareLossEarningsPerShareCalculationDetails", "shortName": "(Loss) Earnings per Share - (Loss) Earnings per Share Calculation (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": "-3", "lang": null, "name": "us-gaap:ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" } }, "R95": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount", "reportCount": 1, "unique": true, "unitRef": "Unit_shares", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1095 - Disclosure - (Loss) Earnings per Share - Antidilutive Securities (Details)", "role": "http://ati.com/role/LossEarningsPerShareAntidilutiveSecuritiesDetails", "shortName": "(Loss) Earnings per Share - Antidilutive Securities (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P01_01_2021To12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount", "reportCount": 1, "unique": true, "unitRef": "Unit_shares", "xsiNil": "false" } }, "R96": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock", "us-gaap:QuarterlyFinancialInformationTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P10_01_2021To12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax", "reportCount": 1, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1096 - Disclosure - Selected Quarterly Financial Data (Unaudited) (Details)", "role": "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedDetails", "shortName": "Selected Quarterly Financial Data (Unaudited) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock", "us-gaap:QuarterlyFinancialInformationTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P10_01_2021To12_31_2021", "decimals": "-3", "lang": null, "name": "us-gaap:OperatingCostsAndExpenses", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" } }, "R97": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "div", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:RetainedEarningsAccumulatedDeficit", "reportCount": 1, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1097 - Disclosure - Selected Quarterly Financial Data (Unaudited) - Narrative (Details)", "role": "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedNarrativeDetails", "shortName": "Selected Quarterly Financial Data (Unaudited) - Narrative (Details)", "subGroupType": "details", "uniqueAnchor": null }, "R98": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock", "us-gaap:QuarterlyFinancialInformationTextBlock", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P10_01_2021To12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:GoodwillAndIntangibleAssetImpairment", "reportCount": 1, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1098 - Disclosure - Selected Quarterly Financial Data (Unaudited) - Statement of Income (Details)", "role": "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedStatementOfIncomeDetails", "shortName": "Selected Quarterly Financial Data (Unaudited) - Statement of Income (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentsTextBlock", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "P04_01_2021To06_30_2021_ScenarioPreviouslyReportedMembersrtRestatementAxis", "decimals": "-3", "lang": null, "name": "us-gaap:GoodwillAndIntangibleAssetImpairment", "reportCount": 1, "unique": true, "unitRef": "Unit_USD", "xsiNil": "false" } }, "R99": { "firstAnchor": { "ancestors": [ "td", "tr", "table", "us-gaap:ScheduleOfMaturitiesOfLongTermDebtTableTextBlock", "ix:continuation", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn12_31_2021", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:DebtInstrumentCarryingAmount", "reportCount": 1, "unitRef": "Unit_USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "1099 - Disclosure - Subsequent Events (Details)", "role": "http://ati.com/role/SubsequentEventsDetails", "shortName": "Subsequent Events (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "div", "ix:continuation", "div", "div", "div", "div", "body", "html" ], "baseRef": "d329221ds1.htm", "contextRef": "PAsOn02_24_2022_SubsequentEventMemberusgaapSubsequentEventTypeAxis", "decimals": "INF", "lang": null, "name": "us-gaap:ClassOfWarrantOrRightOutstanding", "reportCount": 1, "unique": true, "unitRef": "Unit_shares", "xsiNil": "false" } } }, "segmentCount": 113, "tag": { "atip_A2022FirstLienTermLoanMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "2022 First Lien Term Loan", "label": "2022 First Lien Term Loan [Member]", "terseLabel": "2022 First Lien Term Loan" } } }, "localname": "A2022FirstLienTermLoanMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "atip_ATIPhysicalTherapy2021EquityIncentivePlanMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "ATI Physical Therapy 2021 Equity Incentive Plan", "label": "ATI Physical Therapy 2021 Equity Incentive Plan [Member]", "terseLabel": "2021 Plan" } } }, "localname": "ATIPhysicalTherapy2021EquityIncentivePlanMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/ShareBasedCompensationNarrativeDetails", "http://ati.com/role/ShareBasedCompensationScheduleOfShareBasedPaymentArrangementOptionActivityDetails", "http://ati.com/role/ShareBasedCompensationValuationAssumptionDetails", "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "atip_ATIWorksiteSolutionsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "ATI Worksite Solutions", "label": "ATI Worksite Solutions [Member]", "terseLabel": "ATI Worksite Solutions" } } }, "localname": "ATIWorksiteSolutionsMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/RevenueFromContractsWithCustomersDetails" ], "xbrltype": "domainItemType" }, "atip_AccruedExpensesAndOtherLiabilitiesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Accrued Expenses and Other Liabilities", "label": "Accrued Expenses and Other Liabilities [Member]", "terseLabel": "Accrued Expenses and Other Liabilities" } } }, "localname": "AccruedExpensesAndOtherLiabilitiesMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/OverviewOfTheCompanyNarrativeDetails" ], "xbrltype": "domainItemType" }, "atip_AccruedTransactionRelatedCostCurrent": { "auth_ref": [], "calculation": { "http://ati.com/role/AccruedExpensesAndOtherLiabilitiesDetails": { "order": 5.0, "parentTag": "us-gaap_AccruedLiabilitiesAndOtherLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Accrued Transaction Related Cost, Current", "label": "Accrued Transaction Related Cost, Current", "terseLabel": "Transaction-related costs" } } }, "localname": "AccruedTransactionRelatedCostCurrent", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/AccruedExpensesAndOtherLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "atip_AdjustmentToAdditionalPaidInCapitalRecognitionOfContingentSharesLiability": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Adjustment To Additional Paid In Capital, Recognition of Contingent Shares Liability", "label": "Adjustment To Additional Paid In Capital, Recognition of Contingent Shares Liability", "negatedTerseLabel": "Contingent common shares liability recognized upon the closing of the Business Combination" } } }, "localname": "AdjustmentToAdditionalPaidInCapitalRecognitionOfContingentSharesLiability", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity" ], "xbrltype": "monetaryItemType" }, "atip_AdjustmentsToAdditionalPaidInCapitalRecapitalizationTransactionCosts": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Adjustments to Additional Paid in Capital, Recapitalization, Transaction Costs", "label": "Adjustments to Additional Paid in Capital, Recapitalization, Transaction Costs", "terseLabel": "Transaction cost off-set against additional paid-in capital" } } }, "localname": "AdjustmentsToAdditionalPaidInCapitalRecapitalizationTransactionCosts", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "atip_AdjustmentsToAdditionalPaidInCapitalWarrantLiabilityRecognizedInReverseRecapitalization": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Adjustments to Additional Paid in Capital, Warrant Liability Recognized in Reverse Recapitalization", "label": "Adjustments to Additional Paid in Capital, Warrant Liability Recognized in Reverse Recapitalization", "negatedTerseLabel": "Warrant liability recognized upon the closing of the Business Combination" } } }, "localname": "AdjustmentsToAdditionalPaidInCapitalWarrantLiabilityRecognizedInReverseRecapitalization", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity" ], "xbrltype": "monetaryItemType" }, "atip_AssociatedPayorClassAxis": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Associated Payor Class", "label": "Associated Payor Class [Axis]", "terseLabel": "Associated Payor Class [Axis]" } } }, "localname": "AssociatedPayorClassAxis", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/RevenueFromContractsWithCustomersDetails" ], "xbrltype": "stringItemType" }, "atip_AssociatedPayorClassDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Associated Payor Class [Domain]", "label": "Associated Payor Class [Domain]", "terseLabel": "Associated Payor Class [Domain]" } } }, "localname": "AssociatedPayorClassDomain", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/RevenueFromContractsWithCustomersDetails" ], "xbrltype": "domainItemType" }, "atip_BusinessCombinationShareRedemption": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Business Combination Share Redemption", "label": "Business Combination Share Redemption", "negatedTerseLabel": "Less: FAII Class A common stock redemptions (in shares)" } } }, "localname": "BusinessCombinationShareRedemption", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureSummaryOfSharesIssuedAndOutstandingDetails" ], "xbrltype": "sharesItemType" }, "atip_CashAcquiredThroughReverseRecapitalization": { "auth_ref": [], "calculation": { "http://ati.com/role/BusinessCombinationsAndDivestitureFlowOfFundsDetails": { "order": 2.0, "parentTag": "atip_ProceedsFromReverseRecapitalization", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Cash Acquired Through Reverse Recapitalization", "label": "Cash Acquired Through Reverse Recapitalization", "terseLabel": "Cash in trust with FAII as of the Closing Date of the Business Combination" } } }, "localname": "CashAcquiredThroughReverseRecapitalization", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureFlowOfFundsDetails" ], "xbrltype": "monetaryItemType" }, "atip_CashFlowLesseeAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Cash Flow, Lessee", "label": "Cash Flow, Lessee [Abstract]", "terseLabel": "Cash paid for amounts included in the measurement of lease liabilities:" } } }, "localname": "CashFlowLesseeAbstract", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/LeasesSupplementalCashFlowDetails" ], "xbrltype": "stringItemType" }, "atip_ChangeInFairValueOfContingentCommonShareLiability": { "auth_ref": [], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 22.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Change In Fair Value Of Contingent Common Share Liability", "label": "Change In Fair Value Of Contingent Common Share Liability", "terseLabel": "Change in fair value of contingent common shares liability" } } }, "localname": "ChangeInFairValueOfContingentCommonShareLiability", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "atip_ClassOfWarrantOrRightExercisePeriod": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Class Of Warrant Or Right, Exercise Period", "label": "Class Of Warrant Or Right, Exercise Period", "terseLabel": "Exercise period" } } }, "localname": "ClassOfWarrantOrRightExercisePeriod", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/SubsequentEventsDetails", "http://ati.com/role/WarrantLiabilityNarrativeDetails" ], "xbrltype": "durationItemType" }, "atip_ClassOfWarrantOrRightExpirationPeriod": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Class Of Warrant Or Right, Expiration Period", "label": "Class Of Warrant Or Right, Expiration Period", "terseLabel": "Expiration period" } } }, "localname": "ClassOfWarrantOrRightExpirationPeriod", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/WarrantLiabilityNarrativeDetails" ], "xbrltype": "durationItemType" }, "atip_ClassOfWarrantOrRightPeriodWarrantsAreNotTransferableAssignableOrSalableAfterBusinessCombination": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Class Of Warrant Or Right, Period Warrants Are Not Transferable, Assignable, or Salable After Business Combination", "label": "Class Of Warrant Or Right, Period Warrants Are Not Transferable, Assignable, or Salable After Business Combination", "terseLabel": "Period that warrants are not transferable, assignable, or salable" } } }, "localname": "ClassOfWarrantOrRightPeriodWarrantsAreNotTransferableAssignableOrSalableAfterBusinessCombination", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/WarrantLiabilityNarrativeDetails" ], "xbrltype": "durationItemType" }, "atip_ClassOfWarrantOrRightWarrantsTransferredAndSurrendered": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Class Of Warrant Or Right, Warrants Transferred And Surrendered", "label": "Class Of Warrant Or Right, Warrants Transferred And Surrendered", "terseLabel": "Warrants transferred and surrender in conjunction with business combination (in shares)" } } }, "localname": "ClassOfWarrantOrRightWarrantsTransferredAndSurrendered", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails" ], "xbrltype": "sharesItemType" }, "atip_ClinicsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Clinics", "label": "Clinics [Member]", "terseLabel": "Clinics" } } }, "localname": "ClinicsMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "domainItemType" }, "atip_CommercialPayorClassMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Commercial Payor Class", "label": "Commercial Payor Class [Member]", "terseLabel": "Commercial" } } }, "localname": "CommercialPayorClassMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/RevenueFromContractsWithCustomersDetails" ], "xbrltype": "domainItemType" }, "atip_CommonClassFMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Common Class F", "label": "Common Class F [Member]", "terseLabel": "Class F Common Stock" } } }, "localname": "CommonClassFMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/BusinessCombinationsAndDivestitureSummaryOfSharesIssuedAndOutstandingDetails", "http://ati.com/role/LossEarningsPerShareAntidilutiveSecuritiesDetails" ], "xbrltype": "domainItemType" }, "atip_CommonStockSharesIssuedRestricted": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Common Stock, Shares, Issued, Restricted", "label": "Common Stock, Shares, Issued, Restricted", "negatedTerseLabel": "Less: Restricted shares" } } }, "localname": "CommonStockSharesIssuedRestricted", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureSummaryOfSharesIssuedAndOutstandingDetails" ], "xbrltype": "sharesItemType" }, "atip_CommonStockSharesIssuedVestingShares": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Common Stock, Shares, Issued, Vesting Shares", "label": "Common Stock, Shares, Issued, Vesting Shares", "negatedTerseLabel": "Less: Vesting Shares" } } }, "localname": "CommonStockSharesIssuedVestingShares", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureSummaryOfSharesIssuedAndOutstandingDetails" ], "xbrltype": "sharesItemType" }, "atip_CommonStockVotingRightsVotesPerShare": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Common Stock, Voting Rights, Votes Per Share", "label": "Common Stock, Voting Rights, Votes Per Share", "terseLabel": "Common stock voting rights" } } }, "localname": "CommonStockVotingRightsVotesPerShare", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/StockholdersEquityNarrativeDetails" ], "xbrltype": "integerItemType" }, "atip_ComputerEquipmentAndSoftwareMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Computer Equipment And Software", "label": "Computer Equipment And Software [Member]", "terseLabel": "Computer equipment and software" } } }, "localname": "ComputerEquipmentAndSoftwareMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPropertyAndEquipmentDetails", "http://ati.com/role/PropertyAndEquipmentCarryingAmountDetails" ], "xbrltype": "domainItemType" }, "atip_ContingentCommonSharesLiabilityPolicyTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Contingent Common Shares Liability", "label": "Contingent Common Shares Liability [Policy Text Block]", "terseLabel": "Contingent common shares liability" } } }, "localname": "ContingentCommonSharesLiabilityPolicyTextBlock", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "atip_ContingentConsiderationCommonSharesLiabilitiesRecognizedUponTheClosingOfTheReverseRecapitalization": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Contingent Consideration Common Shares Liabilities Recognized Upon The Closing Of The Reverse Recapitalization", "label": "Contingent Consideration Common Shares Liabilities Recognized Upon The Closing Of The Reverse Recapitalization", "negatedTerseLabel": "Contingent common shares liability recognized upon the closing of the Business Combination" } } }, "localname": "ContingentConsiderationCommonSharesLiabilitiesRecognizedUponTheClosingOfTheReverseRecapitalization", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "atip_ConvertiblePreferredStockCashSettlementForOutstandingPreferredStock": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Convertible Preferred Stock, Cash Settlement For Outstanding Preferred Stock", "label": "Convertible Preferred Stock, Cash Settlement For Outstanding Preferred Stock", "terseLabel": "Equity consideration transferred in exchange for redemption of preferred stock" } } }, "localname": "ConvertiblePreferredStockCashSettlementForOutstandingPreferredStock", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/RedeemablePreferredStockDetails" ], "xbrltype": "monetaryItemType" }, "atip_DebtInstrumentCovenantLeverageRatioMaximum": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Debt Instrument, Covenant, Leverage Ratio, Maximum", "label": "Debt Instrument, Covenant, Leverage Ratio, Maximum", "terseLabel": "Maximum debt to EBITDA ratio allowed" } } }, "localname": "DebtInstrumentCovenantLeverageRatioMaximum", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BorrowingsNarrativeDetails", "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "pureItemType" }, "atip_DebtInstrumentCovenantLiquidityAmountMinimum": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Debt Instrument, Covenant, Liquidity Amount, Minimum", "label": "Debt Instrument, Covenant, Liquidity Amount, Minimum", "terseLabel": "Minimum liquidity amount" } } }, "localname": "DebtInstrumentCovenantLiquidityAmountMinimum", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "monetaryItemType" }, "atip_DebtInstrumentCovenantPeriodAxis": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Debt Instrument, Covenant, Period", "label": "Debt Instrument, Covenant, Period [Axis]", "terseLabel": "Debt Instrument, Covenant, Period [Axis]" } } }, "localname": "DebtInstrumentCovenantPeriodAxis", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "stringItemType" }, "atip_DebtInstrumentCovenantPeriodDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Debt Instrument, Covenant, Period [Domain]", "label": "Debt Instrument, Covenant, Period [Domain]", "terseLabel": "Debt Instrument, Covenant, Period [Domain]" } } }, "localname": "DebtInstrumentCovenantPeriodDomain", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "atip_DebtInstrumentCovenantPeriodOneMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Debt Instrument, Covenant, Period One", "label": "Debt Instrument, Covenant, Period One [Member]", "terseLabel": "Beginning in the second quarter of 2024" } } }, "localname": "DebtInstrumentCovenantPeriodOneMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "atip_DebtInstrumentCovenantPeriodThreeMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Debt Instrument, Covenant, Period Three", "label": "Debt Instrument, Covenant, Period Three [Member]", "terseLabel": "First quarter of 2025" } } }, "localname": "DebtInstrumentCovenantPeriodThreeMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "atip_DebtInstrumentCovenantPeriodTwoMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Debt Instrument, Covenant, Period Two", "label": "Debt Instrument, Covenant, Period Two [Member]", "terseLabel": "In third quarter of 2024" } } }, "localname": "DebtInstrumentCovenantPeriodTwoMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "atip_DebtInstrumentFloorInterestRate": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Debt Instrument, Floor Interest Rate", "label": "Debt Instrument, Floor Interest Rate", "terseLabel": "Floor rate (as a percent)" } } }, "localname": "DebtInstrumentFloorInterestRate", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "percentItemType" }, "atip_DebtInstrumentInterestInKindInterestRate": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Debt Instrument, Interest In-Kind, Interest Rate", "label": "Debt Instrument, Interest In-Kind, Interest Rate", "terseLabel": "interest in-kind interest to pay" } } }, "localname": "DebtInstrumentInterestInKindInterestRate", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "percentItemType" }, "atip_DebtInstrumentInterestInKindPremiumRate": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Debt Instrument, Interest In-Kind, Premium Rate", "label": "Debt Instrument, Interest In-Kind, Premium Rate", "terseLabel": "Premium rate" } } }, "localname": "DebtInstrumentInterestInKindPremiumRate", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "percentItemType" }, "atip_DebtInstrumentLimitOfRevolvingLoansSwinglineLoansAndLettersOfCreditAsAPercentOfTheTotalRevolvingCreditFacilityCommitment": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Debt Instrument, Limit Of Revolving Loans, Swingline Loans, And Letters Of Credit As A Percent Of The Total Revolving Credit Facility Commitment", "label": "Debt Instrument, Limit Of Revolving Loans, Swingline Loans, And Letters Of Credit As A Percent Of The Total Revolving Credit Facility Commitment", "terseLabel": "Limit of revolving loans, swingline loans, and letters of credit as a percent of the total revolving credit facility commitment (in percent)" } } }, "localname": "DebtInstrumentLimitOfRevolvingLoansSwinglineLoansAndLettersOfCreditAsAPercentOfTheTotalRevolvingCreditFacilityCommitment", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BorrowingsNarrativeDetails" ], "xbrltype": "percentItemType" }, "atip_DebtInstrumentSpringingMaturityLimitOnLoanOutstandingAsOfSpringingMaturityDate": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Debt Instrument, Springing Maturity, Limit On Loan Outstanding As Of Springing Maturity Date", "label": "Debt Instrument, Springing Maturity, Limit On Loan Outstanding As Of Springing Maturity Date", "terseLabel": "Limit on outstanding balance triggering springing maturity" } } }, "localname": "DebtInstrumentSpringingMaturityLimitOnLoanOutstandingAsOfSpringingMaturityDate", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BorrowingsNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "atip_DeferredTaxAssetsAcquisitionAndTransactionCosts": { "auth_ref": [], "calculation": { "http://ati.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails": { "order": 6.0, "parentTag": "us-gaap_DeferredTaxAssetsGross", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Deferred Tax Assets,, Acquisition and Transaction Costs", "label": "Deferred Tax Assets,, Acquisition and Transaction Costs", "terseLabel": "Acquisition and transaction costs" } } }, "localname": "DeferredTaxAssetsAcquisitionAndTransactionCosts", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "atip_DeferredTaxAssetsInterestExpense": { "auth_ref": [], "calculation": { "http://ati.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails": { "order": 8.0, "parentTag": "us-gaap_DeferredTaxAssetsGross", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Deferred Tax Assets, Interest Expense", "label": "Deferred Tax Assets, Interest Expense", "terseLabel": "Interest expense" } } }, "localname": "DeferredTaxAssetsInterestExpense", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "atip_DeferredTaxAssetsOperatingLeaseLiabilities": { "auth_ref": [], "calculation": { "http://ati.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails": { "order": 5.0, "parentTag": "us-gaap_DeferredTaxAssetsGross", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Deferred Tax Assets, Operating Lease Liabilities", "label": "Deferred Tax Assets, Operating Lease Liabilities", "terseLabel": "Operating lease liabilities" } } }, "localname": "DeferredTaxAssetsOperatingLeaseLiabilities", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "atip_DisclosureOfUsefulLivesOfPropertyPlantAndEquipmentTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Disclosure of useful lives of property plant and equipment [Table text block].", "label": "Disclosure Of Useful Lives Of Property Plant And Equipment [Table Text Block]", "terseLabel": "Schedule of Property and Equipment" } } }, "localname": "DisclosureOfUsefulLivesOfPropertyPlantAndEquipmentTableTextBlock", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesTables" ], "xbrltype": "textBlockItemType" }, "atip_DividendTypeAxis": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Dividend Type", "label": "Dividend Type [Axis]", "terseLabel": "Dividend Type [Axis]" } } }, "localname": "DividendTypeAxis", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "stringItemType" }, "atip_DividendTypeDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Dividend Type [Domain]", "label": "Dividend Type [Domain]", "terseLabel": "Dividend Type [Domain]" } } }, "localname": "DividendTypeDomain", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "atip_DividendsPaidInCashMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Dividends Paid In Cash", "label": "Dividends Paid In Cash [Member]", "terseLabel": "Dividends Paid In Cash" } } }, "localname": "DividendsPaidInCashMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "atip_DividendsPaidInKindMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Dividends Paid In-Kind", "label": "Dividends Paid In-Kind [Member]", "terseLabel": "Dividends Paid In-Kind" } } }, "localname": "DividendsPaidInKindMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "atip_EarnoutShareLiabilityMeasurementInputTerm": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Earnout Share Liability, Measurement Input, Term", "label": "Earnout Share Liability, Measurement Input, Term", "terseLabel": "Earnout Share, Term" } } }, "localname": "EarnoutShareLiabilityMeasurementInputTerm", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/FairValueMeasurementsMeasurementInputsDetails" ], "xbrltype": "durationItemType" }, "atip_EarnoutSharesLiabilityMeasurementInput": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Earnout Shares Liability, Measurement Input", "label": "Earnout Shares Liability, Measurement Input", "terseLabel": "Earnout Shares" } } }, "localname": "EarnoutSharesLiabilityMeasurementInput", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/FairValueMeasurementsMeasurementInputsDetails" ], "xbrltype": "decimalItemType" }, "atip_EarnoutSharesLiabilityMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Earnout Shares Liability", "label": "Earnout Shares Liability [Member]", "terseLabel": "Earnout Shares Liability" } } }, "localname": "EarnoutSharesLiabilityMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/ContingentCommonSharesLiabilityDetails", "http://ati.com/role/FairValueMeasurementsChangesInFairValueOfLevel3InstrumentsDetails" ], "xbrltype": "domainItemType" }, "atip_EarnoutSharesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Earnout Shares", "label": "Earnout Shares [Member]", "terseLabel": "Earnout Shares", "verboseLabel": "Earnout Shares reserved" } } }, "localname": "EarnoutSharesMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/ContingentCommonSharesLiabilityDetails", "http://ati.com/role/LossEarningsPerShareAntidilutiveSecuritiesDetails", "http://ati.com/role/StockholdersEquityReservedSharesDetails" ], "xbrltype": "domainItemType" }, "atip_EffectiveIncomeTaxRateReconciliationInterestExpenseOnRedeemablePreferredStock": { "auth_ref": [], "calculation": { "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails": { "order": 6.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Effective Income Tax Rate Reconciliation, Interest Expense On Redeemable Preferred Stock", "label": "Effective Income Tax Rate Reconciliation, Interest Expense On Redeemable Preferred Stock", "terseLabel": "Interest expense on redeemable preferred stock" } } }, "localname": "EffectiveIncomeTaxRateReconciliationInterestExpenseOnRedeemablePreferredStock", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails" ], "xbrltype": "monetaryItemType" }, "atip_EffectiveIncomeTaxRateReconciliationInterestExpenseOnRedeemablePreferredStockPercent": { "auth_ref": [], "calculation": { "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails": { "order": 15.0, "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations", "weight": 1.0 } }, "lang": { "en-us": { "role": { "documentation": "Effective Income Tax Rate Reconciliation, Interest Expense On Redeemable Preferred Stock, Percent", "label": "Effective Income Tax Rate Reconciliation, Interest Expense On Redeemable Preferred Stock, Percent", "terseLabel": "Interest expense on redeemable preferred stock" } } }, "localname": "EffectiveIncomeTaxRateReconciliationInterestExpenseOnRedeemablePreferredStockPercent", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails" ], "xbrltype": "percentItemType" }, "atip_EffectiveIncomeTaxReconciliationChangeInFairValueOfWarrantLiabilityAndContingentCommonSharesLiability": { "auth_ref": [], "calculation": { "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails": { "order": 7.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Effective Income Tax Reconciliation, Change In Fair Value Of Warrant Liability And Contingent Common Shares Liability", "label": "Effective Income Tax Reconciliation, Change In Fair Value Of Warrant Liability And Contingent Common Shares Liability", "terseLabel": "Changes in fair value of warrant liability and contingent common shares liability" } } }, "localname": "EffectiveIncomeTaxReconciliationChangeInFairValueOfWarrantLiabilityAndContingentCommonSharesLiability", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails" ], "xbrltype": "monetaryItemType" }, "atip_EffectiveIncomeTaxReconciliationChangeInFairValueOfWarrantLiabilityAndContingentCommonSharesLiabilityPercent": { "auth_ref": [], "calculation": { "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails": { "order": 16.0, "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations", "weight": 1.0 } }, "lang": { "en-us": { "role": { "documentation": "Effective Income Tax Reconciliation, Change In Fair Value Of Warrant Liability And Contingent Common Shares Liability, Percent", "label": "Effective Income Tax Reconciliation, Change In Fair Value Of Warrant Liability And Contingent Common Shares Liability, Percent", "terseLabel": "Changes in fair value of warrant liability and contingent common shares liability" } } }, "localname": "EffectiveIncomeTaxReconciliationChangeInFairValueOfWarrantLiabilityAndContingentCommonSharesLiabilityPercent", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails" ], "xbrltype": "percentItemType" }, "atip_EquityIssuedInAcquisitionValue": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Equity Issued In Acquisition, Value", "label": "Equity Issued In Acquisition, Value", "terseLabel": "Contributions related to acquisitions" } } }, "localname": "EquityIssuedInAcquisitionValue", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity" ], "xbrltype": "monetaryItemType" }, "atip_FairValueDisclosureWarrantLiability": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Fair Value Disclosure, Warrant Liability", "label": "Fair Value Disclosure, Warrant Liability", "terseLabel": "Fair value of warrant liability" } } }, "localname": "FairValueDisclosureWarrantLiability", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "atip_FirstIssuanceEarnoutSharesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "First Issuance, Earnout Shares", "label": "First Issuance, Earnout Shares [Member]", "terseLabel": "First Issuance, Earnout Shares" } } }, "localname": "FirstIssuanceEarnoutSharesMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/ContingentCommonSharesLiabilityDetails" ], "xbrltype": "domainItemType" }, "atip_FirstIssuanceVestingSharesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "First Issuance, Vesting Shares", "label": "First Issuance, Vesting Shares [Member]", "terseLabel": "First Issuance, Vesting Shares" } } }, "localname": "FirstIssuanceVestingSharesMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/ContingentCommonSharesLiabilityDetails" ], "xbrltype": "domainItemType" }, "atip_FirstLienCreditAgreementMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "First Lien Credit Agreement", "label": "First Lien Credit Agreement [Member]", "terseLabel": "First lien credit agreement" } } }, "localname": "FirstLienCreditAgreementMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BorrowingsNarrativeDetails" ], "xbrltype": "domainItemType" }, "atip_FirstLienTermLoanMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "First Lien Term Loan", "label": "First Lien Term Loan [Member]", "terseLabel": "First lien term loan" } } }, "localname": "FirstLienTermLoanMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BorrowingsLongTermDebtDetails", "http://ati.com/role/BorrowingsNarrativeDetails", "http://ati.com/role/BusinessCombinationsAndDivestitureFlowOfFundsDetails", "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "atip_FortressInvestmentGroupLLCMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Fortress Investment Group, LLC", "label": "Fortress Investment Group, LLC [Member]", "terseLabel": "Fortress" } } }, "localname": "FortressInvestmentGroupLLCMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails" ], "xbrltype": "domainItemType" }, "atip_FortressValueAcquisitionCorpIIFAIIMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Fortress Value Acquisition Corp. II (\"FAII\")", "label": "Fortress Value Acquisition Corp. II (\"FAII\") [Member]", "terseLabel": "FAII" } } }, "localname": "FortressValueAcquisitionCorpIIFAIIMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/BusinessCombinationsAndDivestitureSummaryOfSharesIssuedAndOutstandingDetails", "http://ati.com/role/LossEarningsPerShareAntidilutiveSecuritiesDetails" ], "xbrltype": "domainItemType" }, "atip_GainLossOnCashSettlementForOutstandingPreferredStock": { "auth_ref": [], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 26.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 }, "http://ati.com/role/ConsolidatedStatementsOfOperations": { "order": 14.0, "parentTag": "us-gaap_IncomeLossIncludingPortionAttributableToNoncontrollingInterest", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Gain (Loss) On Cash Settlement For Outstanding Preferred Stock", "label": "Gain (Loss) On Cash Settlement For Outstanding Preferred Stock", "negatedTerseLabel": "Loss on settlement of redeemable preferred stock" } } }, "localname": "GainLossOnCashSettlementForOutstandingPreferredStock", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows", "http://ati.com/role/ConsolidatedStatementsOfOperations", "http://ati.com/role/RedeemablePreferredStockDetails" ], "xbrltype": "monetaryItemType" }, "atip_GovernmentAssistanceAxis": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Government Assistance", "label": "Government Assistance [Axis]", "terseLabel": "Government Assistance [Axis]" } } }, "localname": "GovernmentAssistanceAxis", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/OverviewOfTheCompanyGeneralDistributionsDetails", "http://ati.com/role/OverviewOfTheCompanyNarrativeDetails" ], "xbrltype": "stringItemType" }, "atip_GovernmentAssistanceCARESActMAAPPFundsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Government Assistance, CARES Act, MAAPP Funds", "label": "Government Assistance, CARES Act, MAAPP Funds [Member]", "terseLabel": "CARES Act, MAAPP Funds" } } }, "localname": "GovernmentAssistanceCARESActMAAPPFundsMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/OverviewOfTheCompanyNarrativeDetails" ], "xbrltype": "domainItemType" }, "atip_GovernmentAssistanceCARESActProviderReliefFundMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Government Assistance, CARES Act, Provider Relief Fund", "label": "Government Assistance, CARES Act, Provider Relief Fund [Member]", "terseLabel": "CARES Act, Provider Relief Fund" } } }, "localname": "GovernmentAssistanceCARESActProviderReliefFundMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/OverviewOfTheCompanyGeneralDistributionsDetails", "http://ati.com/role/OverviewOfTheCompanyNarrativeDetails" ], "xbrltype": "domainItemType" }, "atip_GovernmentAssistanceDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Government Assistance [Domain]", "label": "Government Assistance [Domain]", "terseLabel": "Government Assistance [Domain]" } } }, "localname": "GovernmentAssistanceDomain", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/OverviewOfTheCompanyGeneralDistributionsDetails", "http://ati.com/role/OverviewOfTheCompanyNarrativeDetails" ], "xbrltype": "domainItemType" }, "atip_GovernmentPayorClassMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Government Payor Class", "label": "Government Payor Class [Member]", "terseLabel": "Government" } } }, "localname": "GovernmentPayorClassMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/RevenueFromContractsWithCustomersDetails" ], "xbrltype": "domainItemType" }, "atip_HomeHealthServiceLineMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Home Health Service Line", "label": "Home Health Service Line [Member]", "terseLabel": "Home Health service line" } } }, "localname": "HomeHealthServiceLineMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "domainItemType" }, "atip_IncreaseDecreaseInAccruedInterestOnRedeemablePreferredStock": { "auth_ref": [], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 28.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Increase (Decrease) In Accrued Interest On Redeemable Preferred Stock", "label": "Increase (Decrease) In Accrued Interest On Redeemable Preferred Stock", "terseLabel": "Non-cash interest expense on redeemable preferred stock" } } }, "localname": "IncreaseDecreaseInAccruedInterestOnRedeemablePreferredStock", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "atip_IncreaseDecreaseInMedicareAcceleratedAndAdvancePaymentFunds": { "auth_ref": [], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 14.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Increase (Decrease) In Medicare Accelerated And Advance Payment Funds", "label": "Increase (Decrease) In Medicare Accelerated And Advance Payment Funds", "terseLabel": "Medicare Accelerated and Advance Payment Program Funds" } } }, "localname": "IncreaseDecreaseInMedicareAcceleratedAndAdvancePaymentFunds", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "atip_InterestExpenseOnRedeemablePreferredStock": { "auth_ref": [], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfOperations": { "order": 16.0, "parentTag": "us-gaap_IncomeLossIncludingPortionAttributableToNoncontrollingInterest", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Interest Expense On Redeemable Preferred Stock", "label": "Interest Expense On Redeemable Preferred Stock", "terseLabel": "Interest expense on redeemable preferred stock" } } }, "localname": "InterestExpenseOnRedeemablePreferredStock", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfOperations" ], "xbrltype": "monetaryItemType" }, "atip_InterestIncomeExpenseNonoperatingNetExcludingRedeemablePreferredStock": { "auth_ref": [], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfOperations": { "order": 15.0, "parentTag": "us-gaap_IncomeLossIncludingPortionAttributableToNoncontrollingInterest", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Interest Income (Expense), Nonoperating, Net, Excluding Redeemable Preferred Stock", "label": "Interest Income (Expense), Nonoperating, Net, Excluding Redeemable Preferred Stock", "negatedTerseLabel": "Interest expense, net" } } }, "localname": "InterestIncomeExpenseNonoperatingNetExcludingRedeemablePreferredStock", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfOperations" ], "xbrltype": "monetaryItemType" }, "atip_IssuanceOfCommonStockUponVestingOrExerciseOfEquityAwardsShares": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Issuance Of Common Stock Upon Vesting Or Exercise Of Equity Awards, Shares", "label": "Issuance Of Common Stock Upon Vesting Or Exercise Of Equity Awards, Shares", "terseLabel": "Issuance of common stock upon vesting or exercise of equity awards (in shares)" } } }, "localname": "IssuanceOfCommonStockUponVestingOrExerciseOfEquityAwardsShares", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity" ], "xbrltype": "sharesItemType" }, "atip_LaborAndRelatedExpenseMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Labor And Related Expense", "label": "Labor And Related Expense [Member]", "terseLabel": "Salaries and related costs" } } }, "localname": "LaborAndRelatedExpenseMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/EmployeeBenefitPlansDetails" ], "xbrltype": "domainItemType" }, "atip_LeaseModificationOperatingLeaseAssetsAdditions": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Lease Modification, Operating Lease Assets, Additions", "label": "Lease Modification, Operating Lease Assets, Additions", "terseLabel": "Operating lease assets additions" } } }, "localname": "LeaseModificationOperatingLeaseAssetsAdditions", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/LeasesNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "atip_LeaseModificationOperationLeaseLiabilitiesAdditions": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Lease Modification, Operation Lease Liabilities, Additions", "label": "Lease Modification, Operation Lease Liabilities, Additions", "terseLabel": "Operating lease liabilities, additions" } } }, "localname": "LeaseModificationOperationLeaseLiabilitiesAdditions", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/LeasesNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "atip_LesseeLeaseTerminationCosts": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Lessee, Lease Termination Costs", "label": "Lessee, Lease Termination Costs", "terseLabel": "Total lease termination costs" } } }, "localname": "LesseeLeaseTerminationCosts", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/LeasesNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "atip_LesseeLeaseTerminationCostsOther": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Lessee, Lease Termination Costs, Other", "label": "Lessee, Lease Termination Costs, Other", "terseLabel": "Other lease termination costs" } } }, "localname": "LesseeLeaseTerminationCostsOther", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/LeasesNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "atip_ManagementServiceAgreementsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Management Service Agreements", "label": "Management Service Agreements [Member]", "terseLabel": "Management Service Agreements" } } }, "localname": "ManagementServiceAgreementsMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/RevenueFromContractsWithCustomersDetails" ], "xbrltype": "domainItemType" }, "atip_MedicareAcceleratedAndAdvancePaymentFundsAndDeferredEmployerSocialSecurityTaxCARESActCurrent": { "auth_ref": [], "calculation": { "http://ati.com/role/AccruedExpensesAndOtherLiabilitiesDetails": { "order": 2.0, "parentTag": "us-gaap_AccruedLiabilitiesAndOtherLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Medicare Accelerated and Advance Payment Funds And Deferred Employer Social Security Tax, CARES Act, Current", "label": "Medicare Accelerated and Advance Payment Funds And Deferred Employer Social Security Tax, CARES Act, Current", "terseLabel": "CARES Act funds" } } }, "localname": "MedicareAcceleratedAndAdvancePaymentFundsAndDeferredEmployerSocialSecurityTaxCARESActCurrent", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/AccruedExpensesAndOtherLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "atip_NetIncreaseDecreaseInCashRelatedToReverseRecapitalization": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Net Increase (Decrease) In Cash Related to Reverse Recapitalization", "label": "Net Increase (Decrease) In Cash Related to Reverse Recapitalization", "terseLabel": "Net decrease in cash related to Business Combination, PIPE investment and debt repayments" } } }, "localname": "NetIncreaseDecreaseInCashRelatedToReverseRecapitalization", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureFlowOfFundsDetails" ], "xbrltype": "monetaryItemType" }, "atip_NumberOfClinicsAcquired": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Number Of Clinics Acquired", "label": "Number Of Clinics Acquired", "terseLabel": "Number of clinics" } } }, "localname": "NumberOfClinicsAcquired", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails" ], "xbrltype": "integerItemType" }, "atip_NumberOfStoresUnderManagementServiceAgreements": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Number Of Stores Under Management Service Agreements", "label": "Number Of Stores Under Management Service Agreements", "terseLabel": "Number of stores under management service agreements" } } }, "localname": "NumberOfStoresUnderManagementServiceAgreements", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/OverviewOfTheCompanyNarrativeDetails" ], "xbrltype": "integerItemType" }, "atip_NumberOfTranches": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Number Of Tranches", "label": "Number Of Tranches", "terseLabel": "Number of tranches" } } }, "localname": "NumberOfTranches", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/ContingentCommonSharesLiabilityDetails" ], "xbrltype": "integerItemType" }, "atip_OneMonthAdjustedLIBORMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "One Month Adjusted L I B O R", "label": "One Month Adjusted L I B O R [Member]", "terseLabel": "One month adjusted LIBOR" } } }, "localname": "OneMonthAdjustedLIBORMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BorrowingsNarrativeDetails" ], "xbrltype": "domainItemType" }, "atip_OtherPayorClassMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Other Payor Class", "label": "Other Payor Class [Member]", "terseLabel": "Other" } } }, "localname": "OtherPayorClassMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/RevenueFromContractsWithCustomersDetails" ], "xbrltype": "domainItemType" }, "atip_PaymentsForLeaseTerminations": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Payments For Lease Terminations", "label": "Payments For Lease Terminations", "terseLabel": "Cash payments related to lease terminations" } } }, "localname": "PaymentsForLeaseTerminations", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/LeasesNarrativeDetails", "http://ati.com/role/LeasesSupplementalCashFlowDetails" ], "xbrltype": "monetaryItemType" }, "atip_PaymentsOfReverseRecapitalizationTransactionCosts": { "auth_ref": [], "calculation": { "http://ati.com/role/BusinessCombinationsAndDivestitureFlowOfFundsDetails": { "order": 4.0, "parentTag": "atip_ProceedsFromReverseRecapitalization", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Payments of Reverse Recapitalization Transaction Costs", "label": "Payments of Reverse Recapitalization Transaction Costs", "negatedTerseLabel": "FAII transaction costs paid at closing" } } }, "localname": "PaymentsOfReverseRecapitalizationTransactionCosts", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureFlowOfFundsDetails" ], "xbrltype": "monetaryItemType" }, "atip_PreferredStockDiscountOnDividendsPercent": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Preferred Stock, Discount On Dividends, Percent", "label": "Preferred Stock, Discount On Dividends, Percent", "terseLabel": "Discount on dividends" } } }, "localname": "PreferredStockDiscountOnDividendsPercent", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "percentItemType" }, "atip_PreferredStockDividendRateInKindIncreasePercent": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Preferred Stock, Dividend Rate, In-Kind, Increase Percent", "label": "Preferred Stock, Dividend Rate, In-Kind, Increase Percent", "terseLabel": "In-kind increasing percentage" } } }, "localname": "PreferredStockDividendRateInKindIncreasePercent", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "percentItemType" }, "atip_PreferredStockDividendRateQuarterlyIncreaseAfterSecondAnniversaryOfIssuancePercentage": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Preferred Stock, Dividend Rate, Quarterly Increase After Second Anniversary of Issuance, Percentage", "label": "Preferred Stock, Dividend Rate, Quarterly Increase After Second Anniversary of Issuance, Percentage", "terseLabel": "Quarterly increase in dividend rate after second anniversary" } } }, "localname": "PreferredStockDividendRateQuarterlyIncreaseAfterSecondAnniversaryOfIssuancePercentage", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/RedeemablePreferredStockDetails" ], "xbrltype": "percentItemType" }, "atip_PrivatePlacementWarrantMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Private Placement Warrant", "label": "Private Placement Warrant [Member]", "terseLabel": "Private Placement Warrants" } } }, "localname": "PrivatePlacementWarrantMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/WarrantLiabilityNarrativeDetails", "http://ati.com/role/WarrantLiabilityWarrantLiabilityDetails" ], "xbrltype": "domainItemType" }, "atip_ProceedsFromGovernmentAssistance": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Proceeds From Government Assistance", "label": "Proceeds From Government Assistance", "negatedTerseLabel": "General distributions received", "terseLabel": "General distributions received" } } }, "localname": "ProceedsFromGovernmentAssistance", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/OverviewOfTheCompanyGeneralDistributionsDetails", "http://ati.com/role/OverviewOfTheCompanyNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "atip_ProceedsFromReverseRecapitalization": { "auth_ref": [], "calculation": { "http://ati.com/role/BusinessCombinationsAndDivestitureFlowOfFundsDetails": { "order": 1.0, "parentTag": "atip_ProceedsFromReverseRecapitalizationTransactionNetOfTransactionCost", "weight": 1.0 }, "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 6.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Proceeds From Reverse Recapitalization", "label": "Proceeds From Reverse Recapitalization", "terseLabel": "Cash inflow from Business Combination", "totalLabel": "Cash inflow from Business Combination" } } }, "localname": "ProceedsFromReverseRecapitalization", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureFlowOfFundsDetails", "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "atip_ProceedsFromReverseRecapitalizationTransactionNetOfTransactionCost": { "auth_ref": [], "calculation": { "http://ati.com/role/BusinessCombinationsAndDivestitureFlowOfFundsDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Proceeds From Reverse Recapitalization Transaction Net Of Transaction Cost", "label": "Proceeds From Reverse Recapitalization Transaction Net Of Transaction Cost", "totalLabel": "Net proceeds from FAII in Business Combination" } } }, "localname": "ProceedsFromReverseRecapitalizationTransactionNetOfTransactionCost", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureFlowOfFundsDetails" ], "xbrltype": "monetaryItemType" }, "atip_ProductsAndServicesOtherMiscellaneousRevenueMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Products and Services, Other Miscellaneous Revenue", "label": "Products and Services, Other Miscellaneous Revenue [Member]", "terseLabel": "Other revenue" } } }, "localname": "ProductsAndServicesOtherMiscellaneousRevenueMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/RevenueFromContractsWithCustomersDetails" ], "xbrltype": "domainItemType" }, "atip_PublicWarrantMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Public Warrant", "label": "Public Warrant [Member]", "terseLabel": "Public Warrants" } } }, "localname": "PublicWarrantMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/WarrantLiabilityNarrativeDetails", "http://ati.com/role/WarrantLiabilityWarrantLiabilityDetails" ], "xbrltype": "domainItemType" }, "atip_RSFHInvestmentMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "RSFH Investment", "label": "RSFH Investment [Member]", "terseLabel": "RSFH Investment" } } }, "localname": "RSFHInvestmentMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails" ], "xbrltype": "domainItemType" }, "atip_RecapitalizationExchangeRatio": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Recapitalization Exchange Ratio", "label": "Recapitalization Exchange Ratio", "terseLabel": "Exchange ratio" } } }, "localname": "RecapitalizationExchangeRatio", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/StockholdersEquityNarrativeDetails" ], "xbrltype": "pureItemType" }, "atip_RentClinicSuppliedContractLaborAndOtherOperatingExpenses": { "auth_ref": [], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfOperations": { "order": 7.0, "parentTag": "us-gaap_OperatingCostsAndExpenses", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Rent, Clinic Supplied, Contract Labor and Other Operating Expenses", "label": "Rent, Clinic Supplied, Contract Labor and Other Operating Expenses", "terseLabel": "Rent, clinic supplies, contract labor and other" } } }, "localname": "RentClinicSuppliedContractLaborAndOtherOperatingExpenses", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfOperations" ], "xbrltype": "monetaryItemType" }, "atip_RentClinicSuppliesContractLaborAndOtherMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Rent, Clinic Supplies, Contract Labor, and Other", "label": "Rent, Clinic Supplies, Contract Labor, and Other [Member]", "terseLabel": "Rent, clinic supplies, contract labor and other" } } }, "localname": "RentClinicSuppliesContractLaborAndOtherMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/PropertyAndEquipmentDepreciationExpenseDetails" ], "xbrltype": "domainItemType" }, "atip_RepaymentsOfGovernmentAssistance": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Repayments Of Government Assistance", "label": "Repayments Of Government Assistance", "terseLabel": "Proceeds from sale of Home Health service line" } } }, "localname": "RepaymentsOfGovernmentAssistance", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/OverviewOfTheCompanyNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "atip_RevenueCycleManagementCostsCurrent": { "auth_ref": [], "calculation": { "http://ati.com/role/AccruedExpensesAndOtherLiabilitiesDetails": { "order": 4.0, "parentTag": "us-gaap_AccruedLiabilitiesAndOtherLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Revenue Cycle Management Costs, Current", "label": "Revenue Cycle Management Costs, Current", "terseLabel": "Revenue cycle management costs" } } }, "localname": "RevenueCycleManagementCostsCurrent", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/AccruedExpensesAndOtherLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "atip_RevenueFromContractWithCustomerExcludingAssessedTaxPercent": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Revenue From Contract With Customer, Excluding Assessed Tax, Percent", "label": "Revenue From Contract With Customer, Excluding Assessed Tax, Percent", "terseLabel": "Net operating revenue (as percent)" } } }, "localname": "RevenueFromContractWithCustomerExcludingAssessedTaxPercent", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/RevenueFromContractsWithCustomersDetails" ], "xbrltype": "percentItemType" }, "atip_ReverseRecapitalizationDerivativeLiabilityEarnoutPeriod": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Reverse Recapitalization, Derivative, Liability, Earnout Period", "label": "Reverse Recapitalization, Derivative, Liability, Earnout Period", "terseLabel": "Contingent common share liability term" } } }, "localname": "ReverseRecapitalizationDerivativeLiabilityEarnoutPeriod", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/ContingentCommonSharesLiabilityDetails" ], "xbrltype": "durationItemType" }, "atip_ReverseRecapitalizationDerivativeLiabilityEarnoutPeriodStockPriceTrigger": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Reverse Recapitalization, Derivative, Liability, Earnout Period, Stock Price Trigger", "label": "Reverse Recapitalization, Derivative, Liability, Earnout Period, Stock Price Trigger", "terseLabel": "Stock price trigger (in dollars per share)" } } }, "localname": "ReverseRecapitalizationDerivativeLiabilityEarnoutPeriodStockPriceTrigger", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/ContingentCommonSharesLiabilityDetails" ], "xbrltype": "perShareItemType" }, "atip_ReverseRecapitalizationDerivativeLiabilityEarnoutPeriodThresholdConsecutiveTradingDays": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Reverse Recapitalization, Derivative, Liability, Earnout Period, Threshold Consecutive Trading Days", "label": "Reverse Recapitalization, Derivative, Liability, Earnout Period, Threshold Consecutive Trading Days", "terseLabel": "Threshold consecutive trading days (in days)" } } }, "localname": "ReverseRecapitalizationDerivativeLiabilityEarnoutPeriodThresholdConsecutiveTradingDays", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/ContingentCommonSharesLiabilityDetails" ], "xbrltype": "integerItemType" }, "atip_ReverseRecapitalizationDerivativeLiabilityEarnoutPeriodThresholdTradingDays": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Reverse Recapitalization, Derivative, Liability, Earnout Period, Threshold Trading Days", "label": "Reverse Recapitalization, Derivative, Liability, Earnout Period, Threshold Trading Days", "terseLabel": "Threshold of trading days above stock price trigger (in days)" } } }, "localname": "ReverseRecapitalizationDerivativeLiabilityEarnoutPeriodThresholdTradingDays", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/ContingentCommonSharesLiabilityDetails" ], "xbrltype": "integerItemType" }, "atip_ReverseRecapitalizationDerivativeLiabilityShares": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Reverse Recapitalization, Derivative, Liability, Shares", "label": "Reverse Recapitalization, Derivative, Liability, Shares", "terseLabel": "Contingent common share liability (in shares, up to)", "verboseLabel": "Contingent consideration liability (in shares)" } } }, "localname": "ReverseRecapitalizationDerivativeLiabilityShares", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/ContingentCommonSharesLiabilityDetails", "http://ati.com/role/LossEarningsPerShareAntidilutiveSecuritiesDetails" ], "xbrltype": "sharesItemType" }, "atip_ReverseRecapitalizationDisclosureTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Reverse Recapitalization Disclosure", "label": "Reverse Recapitalization Disclosure [Text Block]", "terseLabel": "Business Combinations and Divestiture" } } }, "localname": "ReverseRecapitalizationDisclosureTextBlock", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestiture" ], "xbrltype": "textBlockItemType" }, "atip_ReverseRecapitalizationTransactionCost": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Reverse Recapitalization, Transaction Cost", "label": "Reverse Recapitalization, Transaction Cost", "negatedLabel": "Wilco Holdco, Inc. transaction costs expensed during the year ended December 31, 2021", "terseLabel": "Transaction cost" } } }, "localname": "ReverseRecapitalizationTransactionCost", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureFlowOfFundsDetails", "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "atip_ReverseRecapitalizationTransactionCostOffsetAgainstProceeds": { "auth_ref": [], "calculation": { "http://ati.com/role/BusinessCombinationsAndDivestitureFlowOfFundsDetails": { "order": 5.0, "parentTag": "atip_ProceedsFromReverseRecapitalizationTransactionNetOfTransactionCost", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Reverse Recapitalization, Transaction Cost Offset Against Proceeds", "label": "Reverse Recapitalization, Transaction Cost Offset Against Proceeds", "negatedTerseLabel": "Wilco Holdco, Inc. transaction costs offset against proceeds" } } }, "localname": "ReverseRecapitalizationTransactionCostOffsetAgainstProceeds", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureFlowOfFundsDetails" ], "xbrltype": "monetaryItemType" }, "atip_ScheduleOfGovernmentAssistanceTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Schedule Of Government Assistance", "label": "Schedule Of Government Assistance [Table Text Block]", "terseLabel": "Schedule of General Distribution Payments" } } }, "localname": "ScheduleOfGovernmentAssistanceTableTextBlock", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/OverviewOfTheCompanyTables" ], "xbrltype": "textBlockItemType" }, "atip_ScheduleOfReverseRecapitalizationLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Schedule Of Reverse Recapitalization [Line Items]", "label": "Schedule Of Reverse Recapitalization [Line Items]", "terseLabel": "Schedule Of Reverse Recapitalization [Line Items]" } } }, "localname": "ScheduleOfReverseRecapitalizationLineItems", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureFlowOfFundsDetails", "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/BusinessCombinationsAndDivestitureSummaryOfSharesIssuedAndOutstandingDetails" ], "xbrltype": "stringItemType" }, "atip_ScheduleOfReverseRecapitalizationTable": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Schedule Of Reverse Recapitalization [Table]", "label": "Schedule Of Reverse Recapitalization [Table]", "terseLabel": "Schedule Of Reverse Recapitalization [Table]" } } }, "localname": "ScheduleOfReverseRecapitalizationTable", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureFlowOfFundsDetails", "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/BusinessCombinationsAndDivestitureSummaryOfSharesIssuedAndOutstandingDetails" ], "xbrltype": "stringItemType" }, "atip_ScheduleOfReverseRecapitalizationTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Schedule of Reverse Recapitalization", "label": "Schedule of Reverse Recapitalization [Table Text Block]", "terseLabel": "Summary of Shares Issued and Flow of Funds Related to Business Combination" } } }, "localname": "ScheduleOfReverseRecapitalizationTableTextBlock", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureTables" ], "xbrltype": "textBlockItemType" }, "atip_ScheduleOfUnvestedRestrictedStockAwardsRollForwardTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Schedule Of Unvested Restricted Stock Awards Roll Forward", "label": "Schedule Of Unvested Restricted Stock Awards Roll Forward [Table Text Block]", "terseLabel": "Schedule Of Unvested Restricted Stock Awards Roll Forward" } } }, "localname": "ScheduleOfUnvestedRestrictedStockAwardsRollForwardTableTextBlock", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/ShareBasedCompensationTables" ], "xbrltype": "textBlockItemType" }, "atip_ScheduleOfWarrantLiabilitiesTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Schedule Of Warrant Liabilities", "label": "Schedule Of Warrant Liabilities [Table Text Block]", "terseLabel": "Summary of Warrant Liability" } } }, "localname": "ScheduleOfWarrantLiabilitiesTableTextBlock", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/WarrantLiabilityTables" ], "xbrltype": "textBlockItemType" }, "atip_SecondIssuanceEarnoutSharesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Second Issuance, Earnout Shares", "label": "Second Issuance, Earnout Shares [Member]", "terseLabel": "Second Issuance, Earnout Shares" } } }, "localname": "SecondIssuanceEarnoutSharesMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/ContingentCommonSharesLiabilityDetails" ], "xbrltype": "domainItemType" }, "atip_SecondIssuanceVestingSharesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Second Issuance, Vesting Shares", "label": "Second Issuance, Vesting Shares [Member]", "terseLabel": "Second Issuance, Vesting Shares" } } }, "localname": "SecondIssuanceVestingSharesMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/ContingentCommonSharesLiabilityDetails" ], "xbrltype": "domainItemType" }, "atip_SecondLienSubordinatedLoanMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Second Lien Subordinated Loan", "label": "Second Lien Subordinated Loan [Member]", "terseLabel": "Second lien subordinated loan" } } }, "localname": "SecondLienSubordinatedLoanMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BorrowingsLongTermDebtDetails", "http://ati.com/role/BorrowingsNarrativeDetails", "http://ati.com/role/BusinessCombinationsAndDivestitureFlowOfFundsDetails" ], "xbrltype": "domainItemType" }, "atip_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsIntendToCancelNumber": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Intend to Cancel, Number", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Intend to Cancel, Number", "terseLabel": "Shares intend to cancel (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsIntendToCancelNumber", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/ShareBasedCompensationNarrativeDetails" ], "xbrltype": "sharesItemType" }, "atip_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsIntendedIncreaseInNumberOfSharesReserved": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Intended Increase In Number Of Shares Reserved", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Intended Increase In Number Of Shares Reserved", "terseLabel": "Increase in number of shares reserved (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsIntendedIncreaseInNumberOfSharesReserved", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/ShareBasedCompensationNarrativeDetails" ], "xbrltype": "sharesItemType" }, "atip_ShareBasedPaymentAwardOptionsAggregateIntrinsicValueAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Share-Based Payment Award, Options, Aggregate Intrinsic Value", "label": "Share-Based Payment Award, Options, Aggregate Intrinsic Value [Abstract]", "terseLabel": "Aggregate Intrinsic Value" } } }, "localname": "ShareBasedPaymentAwardOptionsAggregateIntrinsicValueAbstract", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/ShareBasedCompensationScheduleOfShareBasedPaymentArrangementOptionActivityDetails" ], "xbrltype": "stringItemType" }, "atip_SocialSecurityTaxEmployerDeferralCARESAct": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Social Security Tax, Employer, Deferral, CARES Act", "label": "Social Security Tax, Employer, Deferral, CARES Act", "terseLabel": "Deferral of social security tax" } } }, "localname": "SocialSecurityTaxEmployerDeferralCARESAct", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/OverviewOfTheCompanyNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "atip_StockConvertedReverseRecapitalizationRestrictedShares": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Stock Converted, Reverse Recapitalization, Restricted, Shares", "label": "Stock Converted, Reverse Recapitalization, Restricted, Shares", "terseLabel": "Restricted shares (in shares)" } } }, "localname": "StockConvertedReverseRecapitalizationRestrictedShares", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/LossEarningsPerShareAntidilutiveSecuritiesDetails", "http://ati.com/role/StockholdersEquityNarrativeDetails", "http://ati.com/role/StockholdersEquityReservedSharesDetails" ], "xbrltype": "sharesItemType" }, "atip_StockConvertedReverseRecapitalizationShares": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Stock Converted, Reverse Recapitalization, Shares", "label": "Stock Converted, Reverse Recapitalization, Shares", "terseLabel": "Add: Shares issued to Wilco Holdco stockholders (in shares)", "verboseLabel": "Shares issued to Wilco Holdco stockholders (in shares)" } } }, "localname": "StockConvertedReverseRecapitalizationShares", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/BusinessCombinationsAndDivestitureSummaryOfSharesIssuedAndOutstandingDetails", "http://ati.com/role/StockholdersEquityNarrativeDetails" ], "xbrltype": "sharesItemType" }, "atip_StockConvertedReverseRecapitalizationUnrestrictedShares": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Stock Converted, Reverse Recapitalization, Unrestricted, Shares", "label": "Stock Converted, Reverse Recapitalization, Unrestricted, Shares", "terseLabel": "Unrestricted shares ( in shares)" } } }, "localname": "StockConvertedReverseRecapitalizationUnrestrictedShares", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/StockholdersEquityNarrativeDetails" ], "xbrltype": "sharesItemType" }, "atip_StockConvertedReverseRecapitalizationValuePerShare": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Stock Converted, Reverse Recapitalization, Value Per Share", "label": "Stock Converted, Reverse Recapitalization, Value Per Share", "terseLabel": "Shares issued to Wilco Holdco stockholders, value per share (in dollars per share)" } } }, "localname": "StockConvertedReverseRecapitalizationValuePerShare", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/StockholdersEquityNarrativeDetails" ], "xbrltype": "perShareItemType" }, "atip_StockIssuedDuringPeriodSharesReverseRecapitalization": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Stock Issued During Period, Shares, Reverse Recapitalization", "label": "Stock Issued During Period, Shares, Reverse Recapitalization", "terseLabel": "Net proceeds from FAII in Business Combination (in shares)" } } }, "localname": "StockIssuedDuringPeriodSharesReverseRecapitalization", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity" ], "xbrltype": "sharesItemType" }, "atip_StockIssuedDuringPeriodValueReverseRecapitalization": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Stock Issued During Period, Value, Reverse Recapitalization", "label": "Stock Issued During Period, Value, Reverse Recapitalization", "terseLabel": "Net proceeds from FAII in Business Combination" } } }, "localname": "StockIssuedDuringPeriodValueReverseRecapitalization", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity" ], "xbrltype": "monetaryItemType" }, "atip_StrikePrice001Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Strike Price 0.01", "label": "Strike Price 0.01 [Member]", "terseLabel": "Strike Price 0.01" } } }, "localname": "StrikePrice001Member", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "atip_StrikePrice300Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Strike Price 3.00", "label": "Strike Price 3.00 [Member]", "terseLabel": "Strike Price 3.00" } } }, "localname": "StrikePrice300Member", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "atip_ThirdIssuanceEarnoutSharesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Third Issuance, Earnout Shares", "label": "Third Issuance, Earnout Shares [Member]", "terseLabel": "Third Issuance, Earnout Shares" } } }, "localname": "ThirdIssuanceEarnoutSharesMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/ContingentCommonSharesLiabilityDetails" ], "xbrltype": "domainItemType" }, "atip_ThirdIssuanceVestingSharesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Third Issuance, Vesting Shares", "label": "Third Issuance, Vesting Shares [Member]", "terseLabel": "Third Issuance, Vesting Shares" } } }, "localname": "ThirdIssuanceVestingSharesMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/ContingentCommonSharesLiabilityDetails" ], "xbrltype": "domainItemType" }, "atip_ThreeAcquisitions2021Member": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Three Acquisitions 2021", "label": "Three Acquisitions 2021 [Member]", "terseLabel": "Three Acquisitions 2021" } } }, "localname": "ThreeAcquisitions2021Member", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails" ], "xbrltype": "domainItemType" }, "atip_TransactionRelatedAmountDueToFormerOwners": { "auth_ref": [], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 13.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Transaction-Related Amount Due To Former Owners", "label": "Transaction-Related Amount Due To Former Owners", "negatedTerseLabel": "Transaction-related amount due to former owners" } } }, "localname": "TransactionRelatedAmountDueToFormerOwners", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "atip_TransactionRelatedAmountDueToFormerOwnersCurrent": { "auth_ref": [], "calculation": { "http://ati.com/role/AccruedExpensesAndOtherLiabilitiesDetails": { "order": 6.0, "parentTag": "us-gaap_AccruedLiabilitiesAndOtherLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Transaction-Related Amount Due To Former Owners, Current", "label": "Transaction-Related Amount Due To Former Owners, Current", "terseLabel": "Transaction-related amount due to former owners" } } }, "localname": "TransactionRelatedAmountDueToFormerOwnersCurrent", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/AccruedExpensesAndOtherLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "atip_TransferredToGovernmentAssistance": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Transferred to Government Assistance", "label": "Transferred to Government Assistance", "terseLabel": "Transferred to government assistance" } } }, "localname": "TransferredToGovernmentAssistance", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/OverviewOfTheCompanyNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "atip_TreasuryStockPolicyTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Treasury Stock", "label": "Treasury Stock [Policy Text Block]", "terseLabel": "Treasury Stock" } } }, "localname": "TreasuryStockPolicyTextBlock", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "atip_VestingSharesLiabilityMeasurementInput": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Vesting Shares Liability, Measurement Input", "label": "Vesting Shares Liability, Measurement Input", "terseLabel": "Vesting Shares" } } }, "localname": "VestingSharesLiabilityMeasurementInput", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/FairValueMeasurementsMeasurementInputsDetails" ], "xbrltype": "decimalItemType" }, "atip_VestingSharesLiabilityMeasurementInputTerm": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Vesting Shares Liability, Measurement Input, Term", "label": "Vesting Shares Liability, Measurement Input, Term", "terseLabel": "Vesting Shares, Term" } } }, "localname": "VestingSharesLiabilityMeasurementInputTerm", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/FairValueMeasurementsMeasurementInputsDetails" ], "xbrltype": "durationItemType" }, "atip_VestingSharesLiabilityMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Vesting Shares Liability", "label": "Vesting Shares Liability [Member]", "terseLabel": "Vesting Shares Liability" } } }, "localname": "VestingSharesLiabilityMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/ContingentCommonSharesLiabilityDetails", "http://ati.com/role/FairValueMeasurementsChangesInFairValueOfLevel3InstrumentsDetails" ], "xbrltype": "domainItemType" }, "atip_VestingSharesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Vesting Shares", "label": "Vesting Shares [Member]", "terseLabel": "Vesting Shares", "verboseLabel": "Vesting Shares reserved" } } }, "localname": "VestingSharesMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/ContingentCommonSharesLiabilityDetails", "http://ati.com/role/StockholdersEquityReservedSharesDetails" ], "xbrltype": "domainItemType" }, "atip_WarrantAndRightsDisclosureTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Warrant And Rights Disclosure", "label": "Warrant And Rights Disclosure [Text Block]", "terseLabel": "Warrant Liability" } } }, "localname": "WarrantAndRightsDisclosureTextBlock", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/WarrantLiability" ], "xbrltype": "textBlockItemType" }, "atip_WarrantLiabilitiesRecognizedUponTheClosingOfTheReverseRecapitalization": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Warrant Liabilities Recognized Upon The Closing Of The Reverse Recapitalization", "label": "Warrant Liabilities Recognized Upon The Closing Of The Reverse Recapitalization", "negatedTerseLabel": "Warrant liability recognized upon the closing of the Business Combination" } } }, "localname": "WarrantLiabilitiesRecognizedUponTheClosingOfTheReverseRecapitalization", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "atip_WarrantLiabilityNoncurrent": { "auth_ref": [], "calculation": { "http://ati.com/role/ConsolidatedBalanceSheets": { "order": 19.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Warrant Liability, Noncurrent", "label": "Warrant Liability, Noncurrent", "periodEndLabel": "Fair value as of Business Combination, Ending Balance", "periodStartLabel": "Fair value as of Business Combination, Beginning Balance", "terseLabel": "Warrant liability" } } }, "localname": "WarrantLiabilityNoncurrent", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/ConsolidatedBalanceSheets", "http://ati.com/role/WarrantLiabilityWarrantLiabilityDetails" ], "xbrltype": "monetaryItemType" }, "atip_WarrantLiabilityPolicyTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Warrant Liability", "label": "Warrant Liability [Policy Text Block]", "terseLabel": "Warrant liability" } } }, "localname": "WarrantLiabilityPolicyTextBlock", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "atip_WilcoAcquisitionLP2016EquityIncentivePlanMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Wilco Acquisition, LP 2016 Equity Incentive Plan", "label": "Wilco Acquisition, LP 2016 Equity Incentive Plan [Member]", "terseLabel": "2016 Plan" } } }, "localname": "WilcoAcquisitionLP2016EquityIncentivePlanMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/LossEarningsPerShareAntidilutiveSecuritiesDetails", "http://ati.com/role/ShareBasedCompensationNarrativeDetails", "http://ati.com/role/StockholdersEquityNarrativeDetails", "http://ati.com/role/StockholdersEquityReservedSharesDetails" ], "xbrltype": "domainItemType" }, "atip_WilcoHoldcoIncMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Wilco Holdco, Inc.", "label": "Wilco Holdco, Inc. [Member]", "terseLabel": "Wilco Holdco, Inc." } } }, "localname": "WilcoHoldcoIncMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/LossEarningsPerShareAntidilutiveSecuritiesDetails", "http://ati.com/role/RedeemablePreferredStockDetails", "http://ati.com/role/StockholdersEquityNarrativeDetails" ], "xbrltype": "domainItemType" }, "atip_WorkersCompensationPayorClassMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Workers Compensation Payor Class", "label": "Workers Compensation Payor Class [Member]", "terseLabel": "Workers' compensation" } } }, "localname": "WorkersCompensationPayorClassMember", "nsuri": "http://ati.com/20211231", "presentation": [ "http://ati.com/role/RevenueFromContractsWithCustomersDetails" ], "xbrltype": "domainItemType" }, "dei_AmendmentFlag": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.", "label": "Amendment Flag", "terseLabel": "Amendment Flag" } } }, "localname": "AmendmentFlag", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://ati.com/role/Cover" ], "xbrltype": "booleanItemType" }, "dei_CoverAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Cover page.", "label": "Cover [Abstract]" } } }, "localname": "CoverAbstract", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "xbrltype": "stringItemType" }, "dei_DocumentInformationLineItems": { "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": "Document Information [Line Items]", "terseLabel": "Document Information [Line Items]" } } }, "localname": "DocumentInformationLineItems", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://ati.com/role/Cover" ], "xbrltype": "stringItemType" }, "dei_DocumentInformationTable": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Container to support the formal attachment of each official or unofficial, public or private document as part of a submission package.", "label": "Document Information [Table]", "terseLabel": "Document Information [Table]" } } }, "localname": "DocumentInformationTable", "nsuri": "http://xbrl.sec.gov/dei/2021q4", "presentation": [ "http://ati.com/role/Cover" ], "xbrltype": "stringItemType" }, "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/2021q4", "presentation": [ "http://ati.com/role/Cover" ], "xbrltype": "submissionTypeItemType" }, "dei_EntityCentralIndexKey": { "auth_ref": [ "r707" ], "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/2021q4", "presentation": [ "http://ati.com/role/Cover" ], "xbrltype": "centralIndexKeyItemType" }, "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/2021q4", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/BusinessCombinationsAndDivestitureSummaryOfSharesIssuedAndOutstandingDetails", "http://ati.com/role/LossEarningsPerShareAntidilutiveSecuritiesDetails", "http://ati.com/role/RedeemablePreferredStockDetails" ], "xbrltype": "domainItemType" }, "dei_EntityEmergingGrowthCompany": { "auth_ref": [ "r707" ], "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/2021q4", "presentation": [ "http://ati.com/role/Cover" ], "xbrltype": "booleanItemType" }, "dei_EntityFilerCategory": { "auth_ref": [ "r707" ], "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/2021q4", "presentation": [ "http://ati.com/role/Cover" ], "xbrltype": "filerCategoryItemType" }, "dei_EntityRegistrantName": { "auth_ref": [ "r707" ], "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/2021q4", "presentation": [ "http://ati.com/role/Cover" ], "xbrltype": "normalizedStringItemType" }, "dei_EntitySmallBusiness": { "auth_ref": [ "r707" ], "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/2021q4", "presentation": [ "http://ati.com/role/Cover" ], "xbrltype": "booleanItemType" }, "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/2021q4", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/BusinessCombinationsAndDivestitureSummaryOfSharesIssuedAndOutstandingDetails", "http://ati.com/role/LossEarningsPerShareAntidilutiveSecuritiesDetails", "http://ati.com/role/RedeemablePreferredStockDetails" ], "xbrltype": "stringItemType" }, "srt_ConsolidatedEntitiesAxis": { "auth_ref": [ "r127", "r283", "r287", "r292", "r514", "r515", "r523", "r524", "r614", "r704", "r709", "r711", "r712", "r713" ], "lang": { "en-us": { "role": { "documentation": "Information by consolidated entity or group of entities.", "label": "Consolidated Entities [Axis]", "terseLabel": "Consolidated Entities [Axis]" } } }, "localname": "ConsolidatedEntitiesAxis", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails" ], "xbrltype": "stringItemType" }, "srt_ConsolidatedEntitiesDomain": { "auth_ref": [ "r127", "r283", "r287", "r292", "r514", "r515", "r523", "r524", "r614", "r704", "r709", "r711", "r712", "r713" ], "lang": { "en-us": { "role": { "documentation": "Entity or group of entities consolidated into reporting entity.", "label": "Consolidated Entities [Domain]", "terseLabel": "Consolidated Entities [Domain]" } } }, "localname": "ConsolidatedEntitiesDomain", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails" ], "xbrltype": "domainItemType" }, "srt_CounterpartyNameAxis": { "auth_ref": [ "r61", "r63", "r125", "r126", "r298", "r332", "r714" ], "lang": { "en-us": { "role": { "documentation": "Information by name of counterparty. A counterparty is the other party that participates in a financial transaction. Examples include, but not limited to, the name of the financial institution.", "label": "Counterparty Name [Axis]", "terseLabel": "Counterparty Name [Axis]" } } }, "localname": "CounterpartyNameAxis", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/StockholdersEquityNarrativeDetails" ], "xbrltype": "stringItemType" }, "srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember": { "auth_ref": [ "r2", "r139", "r147", "r154", "r236", "r443", "r444", "r445", "r486", "r487", "r552", "r555", "r557", "r558", "r717" ], "lang": { "en-us": { "role": { "documentation": "Increase (decrease) to financial statements for cumulative-effect adjustment in period of adoption of amendment to accounting standards.", "label": "Cumulative Effect, Period of Adoption, Adjustment [Member]", "terseLabel": "Cumulative Effect, Period of Adoption, Adjustment" } } }, "localname": "CumulativeEffectPeriodOfAdoptionAdjustmentMember", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity" ], "xbrltype": "domainItemType" }, "srt_CumulativeEffectPeriodOfAdoptionAxis": { "auth_ref": [ "r2", "r139", "r147", "r154", "r236", "r443", "r444", "r445", "r486", "r487", "r552", "r555", "r557", "r558", "r717" ], "lang": { "en-us": { "role": { "documentation": "Information by cumulative-effect adjustment to financial statements in period of adoption of amendment to accounting standards.", "label": "Cumulative Effect, Period of Adoption [Axis]", "terseLabel": "Cumulative Effect, Period of Adoption [Axis]" } } }, "localname": "CumulativeEffectPeriodOfAdoptionAxis", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity" ], "xbrltype": "stringItemType" }, "srt_CumulativeEffectPeriodOfAdoptionDomain": { "auth_ref": [ "r2", "r139", "r147", "r154", "r236", "r443", "r444", "r445", "r486", "r487", "r552", "r555", "r557", "r558", "r717" ], "lang": { "en-us": { "role": { "documentation": "Cumulative-effect adjustment to financial statements in period of adoption of amendment to accounting standards.", "label": "Cumulative Effect, Period of Adoption [Domain]", "terseLabel": "Cumulative Effect, Period of Adoption [Domain]" } } }, "localname": "CumulativeEffectPeriodOfAdoptionDomain", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity" ], "xbrltype": "domainItemType" }, "srt_MaximumMember": { "auth_ref": [ "r297", "r331", "r401", "r403", "r624", "r625", "r626", "r627", "r628", "r629", "r630", "r683", "r685", "r705", "r706" ], "lang": { "en-us": { "role": { "documentation": "Upper limit of the provided range.", "label": "Maximum [Member]", "terseLabel": "Maximum" } } }, "localname": "MaximumMember", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesIntangibleAssetsDetails", "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPropertyAndEquipmentDetails", "http://ati.com/role/BorrowingsNarrativeDetails", "http://ati.com/role/LeasesNarrativeDetails", "http://ati.com/role/ShareBasedCompensationNarrativeDetails" ], "xbrltype": "domainItemType" }, "srt_MinimumMember": { "auth_ref": [ "r297", "r331", "r401", "r403", "r624", "r625", "r626", "r627", "r628", "r629", "r630", "r683", "r685", "r705", "r706" ], "lang": { "en-us": { "role": { "documentation": "Lower limit of the provided range.", "label": "Minimum [Member]", "terseLabel": "Minimum" } } }, "localname": "MinimumMember", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesIntangibleAssetsDetails", "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPropertyAndEquipmentDetails", "http://ati.com/role/BorrowingsNarrativeDetails", "http://ati.com/role/LeasesNarrativeDetails", "http://ati.com/role/ShareBasedCompensationNarrativeDetails" ], "xbrltype": "domainItemType" }, "srt_OwnershipAxis": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Information by name of entity in which ownership interest is disclosed. Excludes equity method investee and named security investment.", "label": "Ownership [Axis]", "terseLabel": "Ownership [Axis]" } } }, "localname": "OwnershipAxis", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails" ], "xbrltype": "stringItemType" }, "srt_OwnershipDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Name of entity in which ownership interest is disclosed. Excludes equity method investee and named security investment.", "label": "Ownership [Domain]", "terseLabel": "Ownership [Domain]" } } }, "localname": "OwnershipDomain", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails" ], "xbrltype": "domainItemType" }, "srt_ProductOrServiceAxis": { "auth_ref": [ "r216", "r377", "r379", "r631", "r682", "r684" ], "lang": { "en-us": { "role": { "documentation": "Information by product and service, or group of similar products and similar services.", "label": "Product and Service [Axis]", "terseLabel": "Product and Service [Axis]" } } }, "localname": "ProductOrServiceAxis", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfOperations", "http://ati.com/role/RevenueFromContractsWithCustomersDetails" ], "xbrltype": "stringItemType" }, "srt_ProductsAndServicesDomain": { "auth_ref": [ "r216", "r377", "r379", "r631", "r682", "r684" ], "lang": { "en-us": { "role": { "documentation": "Product or service, or a group of similar products or similar services.", "label": "Product and Service [Domain]", "terseLabel": "Product and Service [Domain]" } } }, "localname": "ProductsAndServicesDomain", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfOperations", "http://ati.com/role/RevenueFromContractsWithCustomersDetails" ], "xbrltype": "domainItemType" }, "srt_RangeAxis": { "auth_ref": [ "r297", "r331", "r388", "r401", "r403", "r624", "r625", "r626", "r627", "r628", "r629", "r630", "r683", "r685", "r705", "r706" ], "lang": { "en-us": { "role": { "documentation": "Information by statistical measurement. Includes, but is not limited to, minimum, maximum, weighted average, arithmetic average, and median.", "label": "Statistical Measurement [Axis]", "terseLabel": "Statistical Measurement [Axis]" } } }, "localname": "RangeAxis", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesIntangibleAssetsDetails", "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPropertyAndEquipmentDetails", "http://ati.com/role/BorrowingsNarrativeDetails", "http://ati.com/role/ContingentCommonSharesLiabilityDetails", "http://ati.com/role/LeasesNarrativeDetails", "http://ati.com/role/PropertyAndEquipmentNarrativeDetails", "http://ati.com/role/ShareBasedCompensationNarrativeDetails" ], "xbrltype": "stringItemType" }, "srt_RangeMember": { "auth_ref": [ "r297", "r331", "r388", "r401", "r403", "r624", "r625", "r626", "r627", "r628", "r629", "r630", "r683", "r685", "r705", "r706" ], "lang": { "en-us": { "role": { "documentation": "Statistical measurement. Includes, but is not limited to, minimum, maximum, weighted average, arithmetic average, and median.", "label": "Statistical Measurement [Domain]", "terseLabel": "Statistical Measurement [Domain]" } } }, "localname": "RangeMember", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesIntangibleAssetsDetails", "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPropertyAndEquipmentDetails", "http://ati.com/role/BorrowingsNarrativeDetails", "http://ati.com/role/ContingentCommonSharesLiabilityDetails", "http://ati.com/role/LeasesNarrativeDetails", "http://ati.com/role/PropertyAndEquipmentNarrativeDetails", "http://ati.com/role/ShareBasedCompensationNarrativeDetails" ], "xbrltype": "domainItemType" }, "srt_RepurchaseAgreementCounterpartyNameDomain": { "auth_ref": [ "r62", "r63", "r125", "r126", "r298", "r332" ], "lang": { "en-us": { "role": { "documentation": "Named other party that participates in a financial transaction. Examples include, but not limited to, the name of the financial institution.", "label": "Counterparty Name [Domain]", "terseLabel": "Counterparty Name [Domain]" } } }, "localname": "RepurchaseAgreementCounterpartyNameDomain", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/StockholdersEquityNarrativeDetails" ], "xbrltype": "domainItemType" }, "srt_RestatementAdjustmentMember": { "auth_ref": [ "r136", "r137", "r138", "r140", "r141", "r144", "r145", "r147", "r149", "r150", "r152", "r153", "r174", "r557", "r558" ], "lang": { "en-us": { "role": { "documentation": "Cumulative increase (decrease) for adjustment to previously issued financial statements. Includes, but is not limited to, adjustment for retrospective application of amendment to accounting standards, other change in accounting principle, correction of error, and other revision.", "label": "Revision of Prior Period, Adjustment [Member]", "terseLabel": "Revision of Prior Period, Adjustment" } } }, "localname": "RestatementAdjustmentMember", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity" ], "xbrltype": "domainItemType" }, "srt_RestatementAxis": { "auth_ref": [ "r3", "r136", "r137", "r138", "r140", "r141", "r144", "r145", "r146", "r147", "r149", "r150", "r151", "r152", "r153", "r154", "r174", "r237", "r238", "r446", "r487", "r553", "r557", "r558", "r559", "r688", "r689", "r690", "r691", "r692", "r693", "r694", "r695", "r696", "r697", "r718", "r719" ], "lang": { "en-us": { "role": { "documentation": "Information by adjustment to previously issued financial statements. Includes, but is not limited to, adjustment for retrospective application of amendment to accounting standards, other change in accounting principle, correction of error, and other revision.", "label": "Revision of Prior Period [Axis]", "terseLabel": "Revision of Prior Period [Axis]" } } }, "localname": "RestatementAxis", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails", "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity", "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssetsNarrativeDetails", "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedNarrativeDetails", "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedStatementOfIncomeDetails" ], "xbrltype": "stringItemType" }, "srt_RestatementDomain": { "auth_ref": [ "r3", "r136", "r137", "r138", "r140", "r141", "r144", "r145", "r146", "r147", "r149", "r150", "r151", "r152", "r153", "r154", "r174", "r237", "r238", "r446", "r487", "r553", "r557", "r558", "r559", "r688", "r689", "r690", "r691", "r692", "r693", "r694", "r695", "r696", "r697", "r718", "r719" ], "lang": { "en-us": { "role": { "documentation": "Adjustment to previously issued financial statements. Includes, but is not limited to, adjustment for retrospective application of amendment to accounting standards, other change in accounting principle, correction of error, and other revision.", "label": "Revision of Prior Period [Domain]", "terseLabel": "Revision of Prior Period [Domain]" } } }, "localname": "RestatementDomain", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails", "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity", "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssetsNarrativeDetails", "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedNarrativeDetails", "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedStatementOfIncomeDetails" ], "xbrltype": "domainItemType" }, "srt_RevisionOfPriorPeriodErrorCorrectionAdjustmentMember": { "auth_ref": [ "r144", "r145", "r146", "r149", "r150", "r152", "r153" ], "lang": { "en-us": { "role": { "documentation": "Cumulative increase (decrease) to previously issued financial statements for correction of error.", "label": "Revision of Prior Period, Error Correction, Adjustment [Member]", "terseLabel": "Revision of Prior Period, Error Correction, Adjustment" } } }, "localname": "RevisionOfPriorPeriodErrorCorrectionAdjustmentMember", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedNarrativeDetails", "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedStatementOfIncomeDetails" ], "xbrltype": "domainItemType" }, "srt_ScenarioPreviouslyReportedMember": { "auth_ref": [ "r3", "r136", "r138", "r140", "r141", "r144", "r145", "r146", "r147", "r149", "r150", "r152", "r153", "r174", "r237", "r238", "r446", "r487", "r553", "r557", "r558", "r559", "r688", "r689", "r690", "r691", "r692", "r693", "r694", "r695", "r696", "r697", "r718", "r719" ], "lang": { "en-us": { "role": { "documentation": "Represents amount as previously reported before adjustment for retrospective application of amendment to accounting standards, other change in accounting principle, correction of error, and other revision.", "label": "Previously Reported [Member]", "terseLabel": "As reported" } } }, "localname": "ScenarioPreviouslyReportedMember", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity", "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedNarrativeDetails", "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedStatementOfIncomeDetails" ], "xbrltype": "domainItemType" }, "srt_ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock": { "auth_ref": [ "r134", "r710" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for valuation and qualifying accounts and reserves.", "label": "SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]", "terseLabel": "Schedule II - Valuation and Qualifying Accounts" } } }, "localname": "ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://ati.com/role/ScheduleIiValuationAndQualifyingAccounts" ], "xbrltype": "textBlockItemType" }, "srt_ValuationAndQualifyingAccountsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]" } } }, "localname": "ValuationAndQualifyingAccountsAbstract", "nsuri": "http://fasb.org/srt/2021-01-31", "xbrltype": "stringItemType" }, "srt_ValuationAndQualifyingAccountsDisclosureLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]", "terseLabel": "SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]" } } }, "localname": "ValuationAndQualifyingAccountsDisclosureLineItems", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://ati.com/role/ScheduleIiValuationAndQualifyingAccountsDetails" ], "xbrltype": "stringItemType" }, "srt_ValuationAndQualifyingAccountsDisclosureTable": { "auth_ref": [ "r128", "r129", "r130", "r132", "r133", "r710" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of valuation and qualifying accounts and reserves.", "label": "SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table]", "terseLabel": "SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table]" } } }, "localname": "ValuationAndQualifyingAccountsDisclosureTable", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://ati.com/role/ScheduleIiValuationAndQualifyingAccountsDetails" ], "xbrltype": "stringItemType" }, "srt_WeightedAverageMember": { "auth_ref": [ "r624", "r626", "r629", "r705", "r706" ], "lang": { "en-us": { "role": { "documentation": "Average of a range of values, calculated with consideration of proportional relevance.", "label": "Weighted Average [Member]", "terseLabel": "Weighted Average" } } }, "localname": "WeightedAverageMember", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://ati.com/role/ContingentCommonSharesLiabilityDetails" ], "xbrltype": "domainItemType" }, "us-gaap_AccountingStandardsUpdate201602Member": { "auth_ref": [ "r592" ], "lang": { "en-us": { "role": { "documentation": "Accounting Standards Update 2016-02 Leases (Topic 842).", "label": "Accounting Standards Update 2016-02 [Member]", "terseLabel": "Accounting Standards Update 2016-02" } } }, "localname": "AccountingStandardsUpdate201602Member", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_AccountingStandardsUpdateExtensibleList": { "auth_ref": [ "r0", "r1", "r2", "r3", "r4", "r140", "r141", "r142", "r143", "r230", "r231", "r233", "r234", "r235", "r236", "r237", "r238", "r282", "r439", "r440", "r441", "r442", "r443", "r444", "r445", "r446", "r486", "r487", "r549", "r550", "r551", "r552", "r553", "r554", "r555", "r556", "r557", "r558", "r559", "r571", "r572", "r573", "r574", "r575", "r576", "r577", "r578", "r610", "r686", "r687", "r688", "r689", "r690", "r691", "r692", "r693", "r694", "r695", "r696", "r697", "r715", "r716", "r717", "r718", "r719" ], "lang": { "en-us": { "role": { "documentation": "Indicates amendment to accounting standards.", "label": "Accounting Standards Update [Extensible List]", "terseLabel": "Accounting Standards Update [Extensible Enumeration]" } } }, "localname": "AccountingStandardsUpdateExtensibleList", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity" ], "xbrltype": "enumerationSetItemType" }, "us-gaap_AccountsPayableAccruedLiabilitiesAndOtherLiabilitiesDisclosureCurrentTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for accounts payable, accrued expenses, and other liabilities that are classified as current at the end of the reporting period.", "label": "Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block]", "terseLabel": "Accrued Expenses and Other Liabilities" } } }, "localname": "AccountsPayableAccruedLiabilitiesAndOtherLiabilitiesDisclosureCurrentTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/AccruedExpensesAndOtherLiabilities" ], "xbrltype": "textBlockItemType" }, "us-gaap_AccountsPayableAndOtherAccruedLiabilitiesCurrent": { "auth_ref": [], "calculation": { "http://ati.com/role/AccruedExpensesAndOtherLiabilitiesDetails": { "order": 7.0, "parentTag": "us-gaap_AccruedLiabilitiesAndOtherLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of liabilities incurred to vendors for goods and services received, and accrued liabilities classified as other, payable within one year or the normal operating cycle, if longer.", "label": "Accounts Payable and Other Accrued Liabilities, Current", "terseLabel": "Other payables and accrued expenses" } } }, "localname": "AccountsPayableAndOtherAccruedLiabilitiesCurrent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/AccruedExpensesAndOtherLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccountsPayableCurrent": { "auth_ref": [ "r42", "r617" ], "calculation": { "http://ati.com/role/ConsolidatedBalanceSheets": { "order": 13.0, "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/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccountsReceivableNetCurrent": { "auth_ref": [ "r8", "r28", "r219", "r220" ], "calculation": { "http://ati.com/role/ConsolidatedBalanceSheets": { "order": 3.0, "parentTag": "us-gaap_AssetsCurrent", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.", "label": "Accounts Receivable, after Allowance for Credit Loss, Current", "terseLabel": "Accounts receivable (net of allowance for doubtful accounts of $53,533 and $69,693 at December\u00a031, 2021 and December\u00a031, 2020, respectively)" } } }, "localname": "AccountsReceivableNetCurrent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccruedLiabilitiesAndOtherLiabilities": { "auth_ref": [], "calculation": { "http://ati.com/role/AccruedExpensesAndOtherLiabilitiesDetails": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://ati.com/role/ConsolidatedBalanceSheets": { "order": 14.0, "parentTag": "us-gaap_LiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of expenses incurred but not yet paid nor invoiced, and liabilities classified as other.", "label": "Accrued Liabilities and Other Liabilities", "terseLabel": "Accrued expenses and other liabilities", "totalLabel": "Accrued expenses and other liabilities" } } }, "localname": "AccruedLiabilitiesAndOtherLiabilities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/AccruedExpensesAndOtherLiabilitiesDetails", "http://ati.com/role/ConsolidatedBalanceSheets", "http://ati.com/role/OverviewOfTheCompanyNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccruedProfessionalFeesCurrent": { "auth_ref": [ "r13", "r14", "r46" ], "calculation": { "http://ati.com/role/AccruedExpensesAndOtherLiabilitiesDetails": { "order": 3.0, "parentTag": "us-gaap_AccruedLiabilitiesAndOtherLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Carrying value as of the balance sheet date of obligations incurred through that date and payable for professional fees, such as for legal and accounting services received. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).", "label": "Accrued Professional Fees, Current", "terseLabel": "Accrued professional fees" } } }, "localname": "AccruedProfessionalFeesCurrent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/AccruedExpensesAndOtherLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment": { "auth_ref": [ "r40", "r268" ], "calculation": { "http://ati.com/role/PropertyAndEquipmentCarryingAmountDetails": { "order": 2.0, "parentTag": "us-gaap_PropertyPlantAndEquipmentNet", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.", "label": "Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment", "negatedTerseLabel": "Accumulated depreciation and amortization", "terseLabel": "Accumulated depreciation and amortization" } } }, "localname": "AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/PropertyAndEquipmentCarryingAmountDetails", "http://ati.com/role/PropertyAndEquipmentNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax": { "auth_ref": [ "r31", "r66", "r67", "r68", "r670", "r693", "r697" ], "calculation": { "http://ati.com/role/ConsolidatedBalanceSheets": { "order": 30.0, "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.", "label": "Accumulated Other Comprehensive Income (Loss), Net of Tax", "terseLabel": "Accumulated other comprehensive income (loss)" } } }, "localname": "AccumulatedOtherComprehensiveIncomeLossNetOfTax", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccumulatedOtherComprehensiveIncomeMember": { "auth_ref": [ "r65", "r68", "r75", "r76", "r77", "r136", "r137", "r138", "r520", "r688", "r689", "r719" ], "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/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity" ], "xbrltype": "domainItemType" }, "us-gaap_AdditionalPaidInCapital": { "auth_ref": [ "r29", "r446", "r617" ], "calculation": { "http://ati.com/role/ConsolidatedBalanceSheets": { "order": 29.0, "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of excess of issue price over par or stated value of stock and from other transaction involving stock or stockholder. Includes, but is not limited to, additional paid-in capital (APIC) for common and preferred stock.", "label": "Additional Paid in Capital", "terseLabel": "Additional paid-in capital" } } }, "localname": "AdditionalPaidInCapital", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_AdditionalPaidInCapitalMember": { "auth_ref": [ "r136", "r137", "r138", "r443", "r444", "r445", "r557" ], "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/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity" ], "xbrltype": "domainItemType" }, "us-gaap_AdjustmentsForNewAccountingPronouncementsAxis": { "auth_ref": [ "r0", "r1", "r2", "r3", "r4", "r140", "r141", "r142", "r143", "r154", "r230", "r231", "r233", "r234", "r235", "r236", "r237", "r238", "r282", "r439", "r440", "r441", "r442", "r443", "r444", "r445", "r446", "r484", "r485", "r486", "r487", "r549", "r550", "r551", "r552", "r553", "r554", "r555", "r556", "r557", "r558", "r559", "r571", "r572", "r573", "r574", "r575", "r576", "r577", "r578", "r610", "r633", "r634", "r635", "r686", "r687", "r688", "r689", "r690", "r691", "r692", "r693", "r694", "r695", "r696", "r697", "r715", "r716", "r717", "r718", "r719" ], "lang": { "en-us": { "role": { "documentation": "Information by amendment to accounting standards.", "label": "Accounting Standards Update [Axis]", "terseLabel": "Accounting Standards Update [Axis]" } } }, "localname": "AdjustmentsForNewAccountingPronouncementsAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of decrease to equity for grantee's tax withholding obligation for award under share-based payment arrangement.", "label": "Share-based Payment Arrangement, Decrease for Tax Withholding Obligation", "negatedTerseLabel": "Tax withholdings related to net share settlement of restricted stock awards" } } }, "localname": "AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity" ], "xbrltype": "monetaryItemType" }, "us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue": { "auth_ref": [ "r404", "r406", "r449", "r450" ], "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": "Share-based compensation" } } }, "localname": "AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity" ], "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 (loss) income to net cash (used in) provided by operating activities:" } } }, "localname": "AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_AdvertisingCostsPolicyTextBlock": { "auth_ref": [ "r452" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for advertising cost.", "label": "Advertising Cost [Policy Text Block]", "terseLabel": "Advertising costs" } } }, "localname": "AdvertisingCostsPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_AdvertisingExpense": { "auth_ref": [ "r453" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.", "label": "Advertising Expense", "terseLabel": "Advertising expense" } } }, "localname": "AdvertisingExpense", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesAdvertisingCostsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AllocatedShareBasedCompensationExpense": { "auth_ref": [ "r406", "r436", "r448" ], "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": "Stock-based compensation expense" } } }, "localname": "AllocatedShareBasedCompensationExpense", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AllowanceForCreditLossMember": { "auth_ref": [ "r128", "r129", "r130", "r132", "r133" ], "lang": { "en-us": { "role": { "documentation": "Allowance for credit loss from right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.", "label": "SEC Schedule, 12-09, Allowance, Credit Loss [Member]", "terseLabel": "Allowance for doubtful accounts" } } }, "localname": "AllowanceForCreditLossMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ScheduleIiValuationAndQualifyingAccountsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent": { "auth_ref": [ "r35", "r225", "r239" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of allowance for credit loss on accounts receivable, classified as current.", "label": "Accounts Receivable, Allowance for Credit Loss, Current", "terseLabel": "Allowance for doubtful accounts" } } }, "localname": "AllowanceForDoubtfulAccountsReceivableCurrent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedBalanceSheetsParenthetical" ], "xbrltype": "monetaryItemType" }, "us-gaap_AmortizationOfDebtDiscountPremium": { "auth_ref": [ "r88", "r107", "r310", "r587" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.", "label": "Amortization of Debt Discount (Premium)", "terseLabel": "Debt issuance discounts" } } }, "localname": "AmortizationOfDebtDiscountPremium", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AmortizationOfFinancingCosts": { "auth_ref": [ "r84", "r107", "r310", "r589" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of amortization expense attributable to debt issuance costs.", "label": "Amortization of Debt Issuance Costs", "terseLabel": "Amortization of debt issuance costs" } } }, "localname": "AmortizationOfFinancingCosts", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AmortizationOfFinancingCostsAndDiscounts": { "auth_ref": [ "r107", "r310", "r318", "r319", "r589" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 30.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of amortization expense attributable to debt discount (premium) and debt issuance costs.", "label": "Amortization of Debt Issuance Costs and Discounts", "terseLabel": "Amortization of debt issuance costs and original issue discount" } } }, "localname": "AmortizationOfFinancingCostsAndDiscounts", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount": { "auth_ref": [ "r171" ], "lang": { "en-us": { "role": { "documentation": "Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.", "label": "Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount", "terseLabel": "Total antidilutive securities (in shares)" } } }, "localname": "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/LossEarningsPerShareAntidilutiveSecuritiesDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis": { "auth_ref": [ "r171" ], "lang": { "en-us": { "role": { "documentation": "Information by type of antidilutive security.", "label": "Antidilutive Securities [Axis]", "terseLabel": "Antidilutive Securities [Axis]" } } }, "localname": "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/LossEarningsPerShareAntidilutiveSecuritiesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]", "terseLabel": "Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]" } } }, "localname": "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/LossEarningsPerShareAntidilutiveSecuritiesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AntidilutiveSecuritiesNameDomain": { "auth_ref": [ "r171" ], "lang": { "en-us": { "role": { "documentation": "Incremental common shares attributable to securities that were not included in diluted earnings per share (EPS) because to do so would increase EPS amounts or decrease loss per share amounts for the period presented.", "label": "Antidilutive Securities, Name [Domain]", "terseLabel": "Antidilutive Securities, Name [Domain]" } } }, "localname": "AntidilutiveSecuritiesNameDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/LossEarningsPerShareAntidilutiveSecuritiesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_Assets": { "auth_ref": [ "r121", "r199", "r208", "r214", "r232", "r283", "r284", "r285", "r286", "r287", "r288", "r289", "r290", "r291", "r292", "r293", "r514", "r523", "r570", "r615", "r617", "r650", "r668" ], "calculation": { "http://ati.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", "terseLabel": "Total assets", "totalLabel": "Total assets" } } }, "localname": "Assets", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails", "http://ati.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_AssetsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Assets [Abstract]", "terseLabel": "Assets:" } } }, "localname": "AssetsAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "stringItemType" }, "us-gaap_AssetsCurrent": { "auth_ref": [ "r10", "r12", "r59", "r121", "r232", "r283", "r284", "r285", "r286", "r287", "r288", "r289", "r290", "r291", "r292", "r293", "r514", "r523", "r570", "r615", "r617" ], "calculation": { "http://ati.com/role/ConsolidatedBalanceSheets": { "order": 1.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.", "label": "Assets, Current", "totalLabel": "Total current assets" } } }, "localname": "AssetsCurrent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.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/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "stringItemType" }, "us-gaap_AutomobilesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Vehicles that are used primarily for transporting people.", "label": "Automobiles [Member]", "terseLabel": "Automobiles" } } }, "localname": "AutomobilesMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPropertyAndEquipmentDetails", "http://ati.com/role/PropertyAndEquipmentCarryingAmountDetails" ], "xbrltype": "domainItemType" }, "us-gaap_AwardTypeAxis": { "auth_ref": [ "r407", "r438" ], "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/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationActivityOfUnvestedRsasAndTheRespectiveWeightedAverageFairValueDetails", "http://ati.com/role/ShareBasedCompensationActivityOfUnvestedRsusAndTheRespectiveWeightedAverageFairValueDetails", "http://ati.com/role/ShareBasedCompensationNarrativeDetails", "http://ati.com/role/ShareBasedCompensationValuationAssumptionDetails", "http://ati.com/role/StockholdersEquityReservedSharesDetails", "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_BalanceSheetLocationAxis": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Information by location on balance sheet (statement of financial position).", "label": "Balance Sheet Location [Axis]", "terseLabel": "Balance Sheet Location [Axis]" } } }, "localname": "BalanceSheetLocationAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/OverviewOfTheCompanyNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_BalanceSheetLocationDomain": { "auth_ref": [ "r536", "r540" ], "lang": { "en-us": { "role": { "documentation": "Location in the balance sheet (statement of financial position).", "label": "Balance Sheet Location [Domain]", "terseLabel": "Balance Sheet Location [Domain]" } } }, "localname": "BalanceSheetLocationDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/OverviewOfTheCompanyNarrativeDetails" ], "xbrltype": "domainItemType" }, "us-gaap_BaseRateMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Minimum rate investor will accept.", "label": "Base Rate [Member]", "terseLabel": "Base Rate" } } }, "localname": "BaseRateMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BorrowingsNarrativeDetails" ], "xbrltype": "domainItemType" }, "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/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_BasisOfPresentationAndSignificantAccountingPoliciesTextBlock": { "auth_ref": [ "r135" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for the basis of presentation and significant accounting policies concepts. Basis of presentation describes the underlying basis used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS). Accounting policies describe all significant accounting policies of the reporting entity.", "label": "Basis of Presentation and Significant Accounting Policies [Text Block]", "terseLabel": "Basis of Presentation and Summary of Significant Accounting Policies" } } }, "localname": "BasisOfPresentationAndSignificantAccountingPoliciesTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_BridgeLoanMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Financing which is expected to be replaced by a medium to long-term loan. The loan \"bridges\" the gap in time when otherwise no financing would be in place.", "label": "Bridge Loan [Member]", "terseLabel": "Bridge Loan" } } }, "localname": "BridgeLoanMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BorrowingsNarrativeDetails" ], "xbrltype": "domainItemType" }, "us-gaap_BuildingMember": { "auth_ref": [ "r267" ], "lang": { "en-us": { "role": { "documentation": "Facility held for productive use including, but not limited to, office, production, storage and distribution facilities.", "label": "Building [Member]", "terseLabel": "Buildings" } } }, "localname": "BuildingMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPropertyAndEquipmentDetails" ], "xbrltype": "domainItemType" }, "us-gaap_BusinessAcquisitionAcquireeDomain": { "auth_ref": [ "r400", "r402" ], "lang": { "en-us": { "role": { "documentation": "Identification of the acquiree in a material business combination (or series of individually immaterial business combinations), which may include the name or other type of identification of the acquiree.", "label": "Business Acquisition, Acquiree [Domain]", "terseLabel": "Business Acquisition, Acquiree [Domain]" } } }, "localname": "BusinessAcquisitionAcquireeDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/LossEarningsPerShareAntidilutiveSecuritiesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_BusinessAcquisitionAxis": { "auth_ref": [ "r400", "r402", "r499", "r500" ], "lang": { "en-us": { "role": { "documentation": "Information by business combination or series of individually immaterial business combinations.", "label": "Business Acquisition [Axis]", "terseLabel": "Business Acquisition [Axis]" } } }, "localname": "BusinessAcquisitionAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/LossEarningsPerShareAntidilutiveSecuritiesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_BusinessCombinationAndAssetAcquisitionAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Business Combination and Asset Acquisition [Abstract]" } } }, "localname": "BusinessCombinationAndAssetAcquisitionAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_BusinessCombinationContingentConsiderationLiability": { "auth_ref": [ "r503", "r504", "r506" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of liability recognized arising from contingent consideration in a business combination.", "label": "Business Combination, Contingent Consideration, Liability", "terseLabel": "Contingent consideration liability" } } }, "localname": "BusinessCombinationContingentConsiderationLiability", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CapitalExpendituresIncurredButNotYetPaid": { "auth_ref": [ "r112", "r113", "r114" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Future cash outflow to pay for purchases of fixed assets that have occurred.", "label": "Capital Expenditures Incurred but Not yet Paid", "terseLabel": "Purchases of property and equipment in accounts payable" } } }, "localname": "CapitalExpendituresIncurredButNotYetPaid", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashAndCashEquivalentsAtCarryingValue": { "auth_ref": [ "r7", "r37", "r109" ], "calculation": { "http://ati.com/role/ConsolidatedBalanceSheets": { "order": 2.0, "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/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashAndCashEquivalentsPolicyTextBlock": { "auth_ref": [ "r15", "r110" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for cash and cash equivalents, including the policy for determining which items are treated as cash equivalents. Other information that may be disclosed includes (1) the nature of any restrictions on the entity's use of its cash and cash equivalents, (2) whether the entity's cash and cash equivalents are insured or expose the entity to credit risk, (3) the classification of any negative balance accounts (overdrafts), and (4) the carrying basis of cash equivalents (for example, at cost) and whether the carrying amount of cash equivalents approximates fair value.", "label": "Cash and Cash Equivalents, Policy [Policy Text Block]", "terseLabel": "Cash and cash equivalents" } } }, "localname": "CashAndCashEquivalentsPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents": { "auth_ref": [ "r103", "r109", "r115" ], "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/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect": { "auth_ref": [ "r103", "r579" ], "calculation": { "http://ati.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 (decrease) increase in cash and cash equivalents" } } }, "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffectAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect [Abstract]", "terseLabel": "Changes in cash and cash equivalents:" } } }, "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffectAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_ClassOfStockDomain": { "auth_ref": [ "r118", "r121", "r158", "r159", "r164", "r168", "r170", "r181", "r182", "r183", "r232", "r283", "r287", "r288", "r289", "r292", "r293", "r329", "r330", "r334", "r338", "r570", "r708" ], "lang": { "en-us": { "role": { "documentation": "Share of stock differentiated by the voting rights the holder receives. Examples include, but are not limited to, common stock, redeemable preferred stock, nonredeemable preferred stock, and convertible stock.", "label": "Class of Stock [Domain]", "terseLabel": "Class of Stock [Domain]" } } }, "localname": "ClassOfStockDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/BusinessCombinationsAndDivestitureSummaryOfSharesIssuedAndOutstandingDetails", "http://ati.com/role/Cover", "http://ati.com/role/LossEarningsPerShareAntidilutiveSecuritiesDetails", "http://ati.com/role/RedeemablePreferredStockDetails", "http://ati.com/role/StockholdersEquityNarrativeDetails", "http://ati.com/role/StockholdersEquityReservedSharesDetails", "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "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/2021-01-31", "presentation": [ "http://ati.com/role/RedeemablePreferredStockDetails", "http://ati.com/role/StockholdersEquityNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ClassOfWarrantOrRightAxis": { "auth_ref": [ "r358", "r405" ], "lang": { "en-us": { "role": { "documentation": "Information by type of warrant or right issued.", "label": "Class of Warrant or Right [Axis]", "terseLabel": "Class of Warrant or Right [Axis]" } } }, "localname": "ClassOfWarrantOrRightAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/BusinessCombinationsAndDivestitureSummaryOfSharesIssuedAndOutstandingDetails", "http://ati.com/role/SubsequentEventsDetails", "http://ati.com/role/WarrantLiabilityNarrativeDetails", "http://ati.com/role/WarrantLiabilityWarrantLiabilityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ClassOfWarrantOrRightDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Name of the class or type of warrant or right outstanding. Warrants and rights represent derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months.", "label": "Class of Warrant or Right [Domain]", "terseLabel": "Class of Warrant or Right [Domain]" } } }, "localname": "ClassOfWarrantOrRightDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/BusinessCombinationsAndDivestitureSummaryOfSharesIssuedAndOutstandingDetails", "http://ati.com/role/SubsequentEventsDetails", "http://ati.com/role/WarrantLiabilityNarrativeDetails", "http://ati.com/role/WarrantLiabilityWarrantLiabilityDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1": { "auth_ref": [ "r347" ], "lang": { "en-us": { "role": { "documentation": "Exercise price per share or per unit of warrants or rights outstanding.", "label": "Class of Warrant or Right, Exercise Price of Warrants or Rights", "terseLabel": "Exercise price of warrant (in dollars per share)" } } }, "localname": "ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/SubsequentEventsDetails", "http://ati.com/role/WarrantLiabilityNarrativeDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ClassOfWarrantOrRightLineItems": { "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 Warrant or Right [Line Items]", "terseLabel": "Class of Warrant or Right [Line Items]" } } }, "localname": "ClassOfWarrantOrRightLineItems", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/WarrantLiabilityNarrativeDetails", "http://ati.com/role/WarrantLiabilityWarrantLiabilityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares.", "label": "Class of Warrant or Right, Number of Securities Called by Each Warrant or Right", "terseLabel": "Warrant entitles the holder to purchase (in shares)" } } }, "localname": "ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights": { "auth_ref": [ "r347" ], "lang": { "en-us": { "role": { "documentation": "Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.", "label": "Class of Warrant or Right, Number of Securities Called by Warrants or Rights", "terseLabel": "Number of shares called by each warrant" } } }, "localname": "ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/WarrantLiabilityNarrativeDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ClassOfWarrantOrRightOutstanding": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Number of warrants or rights outstanding.", "label": "Class of Warrant or Right, Outstanding", "terseLabel": "Number of outstanding warrants" } } }, "localname": "ClassOfWarrantOrRightOutstanding", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ClassOfWarrantOrRightTable": { "auth_ref": [ "r358", "r405" ], "lang": { "en-us": { "role": { "documentation": "Disclosure for warrants or rights issued, which includes the title of issue of securities called for by warrants and rights outstanding, the aggregate amount of securities called for by warrants and rights outstanding, the date from which the warrants or rights are exercisable, and the price at which the warrant or right is exercisable.", "label": "Class of Warrant or Right [Table]", "terseLabel": "Class of Warrant or Right [Table]" } } }, "localname": "ClassOfWarrantOrRightTable", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/WarrantLiabilityNarrativeDetails", "http://ati.com/role/WarrantLiabilityWarrantLiabilityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_CommitmentsAndContingencies": { "auth_ref": [ "r51", "r278", "r656", "r675" ], "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 18)" } } }, "localname": "CommitmentsAndContingencies", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.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/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_CommitmentsAndContingenciesDisclosureTextBlock": { "auth_ref": [ "r275", "r276", "r277", "r279", "r700" ], "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/2021-01-31", "presentation": [ "http://ati.com/role/CommitmentsAndContingencies" ], "xbrltype": "textBlockItemType" }, "us-gaap_CommonClassAMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Classification of common stock representing ownership interest in a corporation.", "label": "Common Class A [Member]", "terseLabel": "Class A common stock, $0.0001 par value", "verboseLabel": "Class A Common Stock" } } }, "localname": "CommonClassAMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/BusinessCombinationsAndDivestitureSummaryOfSharesIssuedAndOutstandingDetails", "http://ati.com/role/LossEarningsPerShareAntidilutiveSecuritiesDetails", "http://ati.com/role/RedeemablePreferredStockDetails", "http://ati.com/role/StockholdersEquityNarrativeDetails", "http://ati.com/role/StockholdersEquityReservedSharesDetails", "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CommonStockCapitalSharesReservedForFutureIssuance": { "auth_ref": [ "r53" ], "lang": { "en-us": { "role": { "documentation": "Aggregate number of common shares reserved for future issuance.", "label": "Common Stock, Capital Shares Reserved for Future Issuance", "terseLabel": "Total shares of common stock reserved" } } }, "localname": "CommonStockCapitalSharesReservedForFutureIssuance", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationNarrativeDetails", "http://ati.com/role/StockholdersEquityReservedSharesDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_CommonStockMember": { "auth_ref": [ "r136", "r137", "r557" ], "lang": { "en-us": { "role": { "documentation": "Stock that is subordinate to all other stock of the issuer.", "label": "Common Stock [Member]", "terseLabel": "Common Stock" } } }, "localname": "CommonStockMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity" ], "xbrltype": "domainItemType" }, "us-gaap_CommonStockParOrStatedValuePerShare": { "auth_ref": [ "r27" ], "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/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/ConsolidatedBalanceSheetsParenthetical", "http://ati.com/role/StockholdersEquityNarrativeDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_CommonStockSharesAuthorized": { "auth_ref": [ "r27" ], "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/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedBalanceSheetsParenthetical", "http://ati.com/role/StockholdersEquityNarrativeDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_CommonStockSharesIssued": { "auth_ref": [ "r27" ], "lang": { "en-us": { "role": { "documentation": "Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.", "label": "Common Stock, Shares, Issued", "terseLabel": "Common stock, shares issued (in shares)" } } }, "localname": "CommonStockSharesIssued", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/BusinessCombinationsAndDivestitureSummaryOfSharesIssuedAndOutstandingDetails", "http://ati.com/role/ConsolidatedBalanceSheetsParenthetical", "http://ati.com/role/StockholdersEquityNarrativeDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_CommonStockSharesOutstanding": { "auth_ref": [ "r27", "r346" ], "lang": { "en-us": { "role": { "disclosureGuidance": "Common stock, shares outstanding (in shares)", "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)", "verboseLabel": "Common stock, shares outstanding (in shares)" } } }, "localname": "CommonStockSharesOutstanding", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/BusinessCombinationsAndDivestitureSummaryOfSharesIssuedAndOutstandingDetails", "http://ati.com/role/ConsolidatedBalanceSheetsParenthetical", "http://ati.com/role/LossEarningsPerShareAntidilutiveSecuritiesDetails", "http://ati.com/role/StockholdersEquityNarrativeDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_CommonStockValue": { "auth_ref": [ "r27", "r617" ], "calculation": { "http://ati.com/role/ConsolidatedBalanceSheets": { "order": 27.0, "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": "Class A common stock, $0.0001 par value; 470.0 million shares authorized; 207.4 million shares issued, 197.4 million shares outstanding at December\u00a031, 2021; 138.9 million shares issued, 128.3 million shares outstanding at December\u00a031, 2020" } } }, "localname": "CommonStockValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.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/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_ComprehensiveIncomeNetOfTax": { "auth_ref": [ "r70", "r72", "r73", "r81", "r660", "r679" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.", "label": "Comprehensive Income (Loss), Net of Tax, Attributable to Parent", "totalLabel": "Comprehensive (loss) income attributable to ATI Physical Therapy, Inc." } } }, "localname": "ComprehensiveIncomeNetOfTax", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss" ], "xbrltype": "monetaryItemType" }, "us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest": { "auth_ref": [ "r70", "r72", "r80", "r512", "r513", "r530", "r659", "r678" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss": { "order": 4.0, "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income (loss) and other comprehensive income (loss), attributable to noncontrolling interests. Excludes changes in equity resulting from investments by owners and distributions to owners.", "label": "Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest", "terseLabel": "Net (loss) income attributable to non-controlling interest" } } }, "localname": "ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss" ], "xbrltype": "monetaryItemType" }, "us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest": { "auth_ref": [ "r70", "r72", "r79", "r511", "r530", "r658", "r677" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss": { "order": 1.0, "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax", "weight": 1.0 } }, "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. Excludes changes in equity resulting from investments by owners and distributions to owners.", "label": "Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest", "totalLabel": "Comprehensive (loss) income" } } }, "localname": "ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss" ], "xbrltype": "monetaryItemType" }, "us-gaap_ConcentrationRiskCreditRisk": { "auth_ref": [ "r187", "r665" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for credit risk.", "label": "Concentration Risk, Credit Risk, Policy [Policy Text Block]", "terseLabel": "Concentrations of business risk" } } }, "localname": "ConcentrationRiskCreditRisk", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_ConsolidationPolicyTextBlock": { "auth_ref": [ "r116", "r516" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy regarding (1) the principles it follows in consolidating or combining the separate financial statements, including the principles followed in determining the inclusion or exclusion of subsidiaries or other entities in the consolidated or combined financial statements and (2) its treatment of interests (for example, common stock, a partnership interest or other means of exerting influence) in other entities, for example consolidation or use of the equity or cost methods of accounting. The accounting policy may also address the accounting treatment for intercompany accounts and transactions, noncontrolling interest, and the income statement treatment in consolidation for issuances of stock by a subsidiary.", "label": "Consolidation, Policy [Policy Text Block]", "terseLabel": "Principles of consolidation" } } }, "localname": "ConsolidationPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_ConsolidationSubsidiariesOrOtherInvestmentsConsolidatedEntitiesPolicy": { "auth_ref": [ "r516" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for subsidiaries or other investments that are consolidated, including the accounting treatment for intercompany accounts or transactions and any noncontrolling interest.", "label": "Consolidation, Subsidiaries or Other Investments, Consolidated Entities, Policy [Policy Text Block]", "terseLabel": "Noncontrolling interests in consolidated affiliates" } } }, "localname": "ConsolidationSubsidiariesOrOtherInvestmentsConsolidatedEntitiesPolicy", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_ConsolidationVariableInterestEntityPolicy": { "auth_ref": [ "r522", "r526", "r527" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for consolidation to describe the significant judgments and assumptions made in determining whether a variable interest held by the entity requires the variable interest entity to be consolidated and (or) disclose information about its involvement with the variable interest entity; the methodology used by the entity for determining whether or not it is the primary beneficiary of the variable interest entity; and the significant factors considered and judgments made in determining that the power to direct the activities that significantly impact the economic performance of the variable interest entity are shared (as defined).", "label": "Consolidation, Variable Interest Entity, Policy [Policy Text Block]", "terseLabel": "Variable interest entities" } } }, "localname": "ConsolidationVariableInterestEntityPolicy", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_ConstructionInProgressMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service.", "label": "Construction in Progress [Member]", "terseLabel": "Construction-in-progress" } } }, "localname": "ConstructionInProgressMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/PropertyAndEquipmentCarryingAmountDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ContingentConsiderationByTypeAxis": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Information by type of contingent consideration.", "label": "Contingent Consideration by Type [Axis]", "terseLabel": "Contingent Consideration by Type [Axis]" } } }, "localname": "ContingentConsiderationByTypeAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureSummaryOfSharesIssuedAndOutstandingDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ContingentConsiderationTypeDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Description of contingent payment arrangement.", "label": "Contingent Consideration Type [Domain]", "terseLabel": "Contingent Consideration Type [Domain]" } } }, "localname": "ContingentConsiderationTypeDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureSummaryOfSharesIssuedAndOutstandingDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ContractualObligation": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments.", "label": "Contractual Obligation", "terseLabel": "Contractual obligation" } } }, "localname": "ContractualObligation", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/CommitmentsAndContingenciesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ConvertiblePreferredStockSharesIssuedUponConversion": { "auth_ref": [ "r25", "r26", "r341", "r347", "r351" ], "lang": { "en-us": { "role": { "documentation": "Number of shares issued for each share of convertible preferred stock that is converted.", "label": "Convertible Preferred Stock, Shares Issued upon Conversion", "terseLabel": "Equity consideration transferred in exchange for redemption of preferred stock (in shares)" } } }, "localname": "ConvertiblePreferredStockSharesIssuedUponConversion", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/RedeemablePreferredStockDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_CostOfSalesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Primary financial statement caption encompassing cost of sales.", "label": "Cost of Sales [Member]", "terseLabel": "Salaries and related costs" } } }, "localname": "CostOfSalesMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesAdvertisingCostsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CostOfSalesPolicyTextBlock": { "auth_ref": [ "r387" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for cost of product sold and service rendered.", "label": "Cost of Goods and Service [Policy Text Block]", "terseLabel": "Cost of services" } } }, "localname": "CostOfSalesPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_CreditFacilityAxis": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Information by type of credit facility. Credit facilities provide capital to borrowers without the need to structure a loan for each borrowing.", "label": "Credit Facility [Axis]", "terseLabel": "Credit Facility [Axis]" } } }, "localname": "CreditFacilityAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BorrowingsNarrativeDetails", "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_CreditFacilityDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Type of credit facility. Credit facilities provide capital to borrowers without the need to structure a loan for each borrowing.", "label": "Credit Facility [Domain]", "terseLabel": "Credit Facility [Domain]" } } }, "localname": "CreditFacilityDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BorrowingsNarrativeDetails", "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CurrentFederalTaxExpenseBenefit": { "auth_ref": [ "r122", "r480", "r490" ], "calculation": { "http://ati.com/role/IncomeTaxesSummaryOfCompanysProvisionForIncomeTaxExpenseBenefitDetails": { "order": 2.0, "parentTag": "us-gaap_CurrentIncomeTaxExpenseBenefit", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.", "label": "Current Federal Tax Expense (Benefit)", "terseLabel": "Federal" } } }, "localname": "CurrentFederalTaxExpenseBenefit", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesSummaryOfCompanysProvisionForIncomeTaxExpenseBenefitDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CurrentIncomeTaxExpenseBenefit": { "auth_ref": [ "r122", "r480", "r490", "r492" ], "calculation": { "http://ati.com/role/IncomeTaxesSummaryOfCompanysProvisionForIncomeTaxExpenseBenefitDetails": { "order": 1.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.", "label": "Current Income Tax Expense (Benefit)", "totalLabel": "Total current" } } }, "localname": "CurrentIncomeTaxExpenseBenefit", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesSummaryOfCompanysProvisionForIncomeTaxExpenseBenefitDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Current Income Tax Expense (Benefit), Continuing Operations [Abstract]", "terseLabel": "Current:" } } }, "localname": "CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesSummaryOfCompanysProvisionForIncomeTaxExpenseBenefitDetails" ], "xbrltype": "stringItemType" }, "us-gaap_CurrentStateAndLocalTaxExpenseBenefit": { "auth_ref": [ "r122", "r480", "r490" ], "calculation": { "http://ati.com/role/IncomeTaxesSummaryOfCompanysProvisionForIncomeTaxExpenseBenefitDetails": { "order": 3.0, "parentTag": "us-gaap_CurrentIncomeTaxExpenseBenefit", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations.", "label": "Current State and Local Tax Expense (Benefit)", "terseLabel": "State" } } }, "localname": "CurrentStateAndLocalTaxExpenseBenefit", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesSummaryOfCompanysProvisionForIncomeTaxExpenseBenefitDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtDisclosureAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Debt Disclosure [Abstract]" } } }, "localname": "DebtDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_DebtInstrumentAxis": { "auth_ref": [ "r18", "r19", "r20", "r120", "r127", "r294", "r295", "r296", "r297", "r298", "r299", "r300", "r301", "r302", "r303", "r304", "r305", "r306", "r307", "r308", "r309", "r310", "r316", "r317", "r318", "r319", "r590", "r651", "r653", "r667" ], "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/2021-01-31", "presentation": [ "http://ati.com/role/BorrowingsLongTermDebtDetails", "http://ati.com/role/BorrowingsNarrativeDetails", "http://ati.com/role/BusinessCombinationsAndDivestitureFlowOfFundsDetails", "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DebtInstrumentBasisSpreadOnVariableRate1": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Percentage points added to the reference rate to compute the variable rate on the debt instrument.", "label": "Debt Instrument, Basis Spread on Variable Rate", "terseLabel": "Basis spread on variable rate (as a percent)" } } }, "localname": "DebtInstrumentBasisSpreadOnVariableRate1", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BorrowingsNarrativeDetails", "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "percentItemType" }, "us-gaap_DebtInstrumentCarryingAmount": { "auth_ref": [ "r20", "r312", "r653", "r667" ], "calculation": { "http://ati.com/role/BorrowingsLongTermDebtDetails": { "order": 3.0, "parentTag": "us-gaap_LongTermDebt", "weight": 1.0 }, "http://ati.com/role/BorrowingsMaturitiesDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.", "label": "Long-term Debt, Gross", "terseLabel": "Total future maturities", "totalLabel": "Total future maturities" } } }, "localname": "DebtInstrumentCarryingAmount", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BorrowingsLongTermDebtDetails", "http://ati.com/role/BorrowingsMaturitiesDetails", "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtInstrumentInterestRateEffectivePercentage": { "auth_ref": [ "r48", "r315", "r588", "r590" ], "lang": { "en-us": { "role": { "documentation": "Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.", "label": "Debt Instrument, Interest Rate, Effective Percentage", "terseLabel": "Effective interest rate (in percent)" } } }, "localname": "DebtInstrumentInterestRateEffectivePercentage", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BorrowingsLongTermDebtDetails" ], "xbrltype": "percentItemType" }, "us-gaap_DebtInstrumentInterestRateStatedPercentage": { "auth_ref": [ "r48", "r295" ], "lang": { "en-us": { "role": { "documentation": "Contractual interest rate for funds borrowed, under the debt agreement.", "label": "Debt Instrument, Interest Rate, Stated Percentage", "terseLabel": "State interest rate (in percent)" } } }, "localname": "DebtInstrumentInterestRateStatedPercentage", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BorrowingsLongTermDebtDetails" ], "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/2021-01-31", "presentation": [ "http://ati.com/role/BorrowingsLongTermDebtDetails", "http://ati.com/role/BorrowingsNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DebtInstrumentNameDomain": { "auth_ref": [ "r49", "r120", "r127", "r294", "r295", "r296", "r297", "r298", "r299", "r300", "r301", "r302", "r303", "r304", "r305", "r306", "r307", "r308", "r309", "r310", "r316", "r317", "r318", "r319", "r590" ], "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/2021-01-31", "presentation": [ "http://ati.com/role/BorrowingsLongTermDebtDetails", "http://ati.com/role/BorrowingsNarrativeDetails", "http://ati.com/role/BusinessCombinationsAndDivestitureFlowOfFundsDetails", "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_DebtInstrumentTable": { "auth_ref": [ "r49", "r120", "r127", "r294", "r295", "r296", "r297", "r298", "r299", "r300", "r301", "r302", "r303", "r304", "r305", "r306", "r307", "r308", "r309", "r310", "r311", "r316", "r317", "r318", "r319", "r347", "r352", "r353", "r354", "r587", "r588", "r590", "r591", "r664" ], "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/2021-01-31", "presentation": [ "http://ati.com/role/BorrowingsLongTermDebtDetails", "http://ati.com/role/BorrowingsNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DebtInstrumentUnamortizedDiscount": { "auth_ref": [ "r301", "r587", "r591" ], "calculation": { "http://ati.com/role/BorrowingsLongTermDebtDetails": { "order": 1.0, "parentTag": "us-gaap_LongTermDebt", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount, after accumulated amortization, of debt discount.", "label": "Debt Instrument, Unamortized Discount", "negatedTerseLabel": "Less: unamortized debt issuance costs" } } }, "localname": "DebtInstrumentUnamortizedDiscount", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BorrowingsLongTermDebtDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet": { "auth_ref": [ "r301", "r313", "r316", "r317", "r589" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of unamortized debt discount (premium) and debt issuance costs.", "label": "Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net", "negatedTerseLabel": "Unamortized original issue discount and debt issuance costs" } } }, "localname": "DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BorrowingsMaturitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtPolicyTextBlock": { "auth_ref": [ "r280" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy related to debt. Includes, but is not limited to, debt issuance costs, the effects of refinancings, method of amortizing debt issuance costs and original issue discount, and classifications of debt.", "label": "Debt, Policy [Policy Text Block]", "terseLabel": "Deferred financing costs" } } }, "localname": "DebtPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_DeferredFederalIncomeTaxExpenseBenefit": { "auth_ref": [ "r122", "r481", "r490" ], "calculation": { "http://ati.com/role/IncomeTaxesSummaryOfCompanysProvisionForIncomeTaxExpenseBenefitDetails": { "order": 5.0, "parentTag": "us-gaap_DeferredIncomeTaxExpenseBenefit", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations.", "label": "Deferred Federal Income Tax Expense (Benefit)", "terseLabel": "Federal" } } }, "localname": "DeferredFederalIncomeTaxExpenseBenefit", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesSummaryOfCompanysProvisionForIncomeTaxExpenseBenefitDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredFinanceCostsNet": { "auth_ref": [ "r41", "r301", "r589" ], "calculation": { "http://ati.com/role/BorrowingsLongTermDebtDetails": { "order": 2.0, "parentTag": "us-gaap_LongTermDebt", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.", "label": "Debt Issuance Costs, Net", "negatedTerseLabel": "Less: unamortized original issue discount" } } }, "localname": "DeferredFinanceCostsNet", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BorrowingsLongTermDebtDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredIncomeTaxExpenseBenefit": { "auth_ref": [ "r107", "r122", "r481", "r490", "r491", "r492" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 33.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 }, "http://ati.com/role/IncomeTaxesSummaryOfCompanysProvisionForIncomeTaxExpenseBenefitDetails": { "order": 4.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.", "label": "Deferred Income Tax Expense (Benefit)", "terseLabel": "Deferred income tax provision", "totalLabel": "Total deferred" } } }, "localname": "DeferredIncomeTaxExpenseBenefit", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows", "http://ati.com/role/IncomeTaxesSummaryOfCompanysProvisionForIncomeTaxExpenseBenefitDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]", "terseLabel": "Deferred:" } } }, "localname": "DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesSummaryOfCompanysProvisionForIncomeTaxExpenseBenefitDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DeferredIncomeTaxLiabilities": { "auth_ref": [ "r21", "r22", "r470", "r652", "r666" ], "calculation": { "http://ati.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails": { "order": 11.0, "parentTag": "us-gaap_DeferredTaxLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of deferred tax liability attributable to taxable temporary differences.", "label": "Deferred Tax Liabilities, Gross", "totalLabel": "Total gross deferred income tax liabilities" } } }, "localname": "DeferredIncomeTaxLiabilities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredIncomeTaxLiabilitiesNet": { "auth_ref": [ "r458", "r459" ], "calculation": { "http://ati.com/role/ConsolidatedBalanceSheets": { "order": 21.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences with jurisdictional netting.", "label": "Deferred Income Tax Liabilities, Net", "terseLabel": "Deferred income tax liabilities" } } }, "localname": "DeferredIncomeTaxLiabilitiesNet", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit": { "auth_ref": [ "r122", "r481", "r490" ], "calculation": { "http://ati.com/role/IncomeTaxesSummaryOfCompanysProvisionForIncomeTaxExpenseBenefitDetails": { "order": 6.0, "parentTag": "us-gaap_DeferredIncomeTaxExpenseBenefit", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of deferred state and local tax expense (benefit) pertaining to income (loss) from continuing operations.", "label": "Deferred State and Local Income Tax Expense (Benefit)", "terseLabel": "State" } } }, "localname": "DeferredStateAndLocalIncomeTaxExpenseBenefit", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesSummaryOfCompanysProvisionForIncomeTaxExpenseBenefitDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsGross": { "auth_ref": [ "r471" ], "calculation": { "http://ati.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails": { "order": 2.0, "parentTag": "us-gaap_DeferredTaxAssetsNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.", "label": "Deferred Tax Assets, Gross", "totalLabel": "Total gross deferred income tax assets" } } }, "localname": "DeferredTaxAssetsGross", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsNet": { "auth_ref": [ "r473" ], "calculation": { "http://ati.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails": { "order": 1.0, "parentTag": "us-gaap_DeferredTaxLiabilities", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.", "label": "Deferred Tax Assets, Net of Valuation Allowance", "totalLabel": "Total gross deferred income tax assets, net of valuation allowance" } } }, "localname": "DeferredTaxAssetsNet", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsNetOfValuationAllowanceAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Deferred Tax Assets, Net of Valuation Allowance [Abstract]", "terseLabel": "Deferred income tax assets:" } } }, "localname": "DeferredTaxAssetsNetOfValuationAllowanceAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DeferredTaxAssetsOperatingLossCarryforwards": { "auth_ref": [ "r478", "r479" ], "calculation": { "http://ati.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails": { "order": 7.0, "parentTag": "us-gaap_DeferredTaxAssetsGross", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.", "label": "Deferred Tax Assets, Operating Loss Carryforwards", "terseLabel": "Net operating losses" } } }, "localname": "DeferredTaxAssetsOperatingLossCarryforwards", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsOther": { "auth_ref": [ "r478", "r479" ], "calculation": { "http://ati.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails": { "order": 9.0, "parentTag": "us-gaap_DeferredTaxAssetsGross", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other.", "label": "Deferred Tax Assets, Other", "terseLabel": "Other deferred tax assets" } } }, "localname": "DeferredTaxAssetsOther", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities": { "auth_ref": [ "r478", "r479" ], "calculation": { "http://ati.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails": { "order": 3.0, "parentTag": "us-gaap_DeferredTaxAssetsGross", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from accrued liabilities.", "label": "Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities", "terseLabel": "Accrued liabilities" } } }, "localname": "DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts": { "auth_ref": [ "r478", "r479" ], "calculation": { "http://ati.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails": { "order": 4.0, "parentTag": "us-gaap_DeferredTaxAssetsGross", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary difference from allowance for credit loss on accounts receivable.", "label": "Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Allowance for Doubtful Accounts", "terseLabel": "Provision for bad debt" } } }, "localname": "DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsValuationAllowance": { "auth_ref": [ "r472" ], "calculation": { "http://ati.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails": { "order": 10.0, "parentTag": "us-gaap_DeferredTaxAssetsNet", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.", "label": "Deferred Tax Assets, Valuation Allowance", "negatedTerseLabel": "Valuation allowance" } } }, "localname": "DeferredTaxAssetsValuationAllowance", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxLiabilities": { "auth_ref": [ "r459", "r473" ], "calculation": { "http://ati.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting.", "label": "Deferred Tax Liabilities, Net", "totalLabel": "Net deferred income tax liabilities" } } }, "localname": "DeferredTaxLiabilities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxLiabilitiesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Deferred Tax Liabilities, Gross [Abstract]", "terseLabel": "Deferred income tax liabilities:" } } }, "localname": "DeferredTaxLiabilitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill": { "auth_ref": [ "r478", "r479", "r507", "r508" ], "calculation": { "http://ati.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails": { "order": 12.0, "parentTag": "us-gaap_DeferredIncomeTaxLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of deferred tax liability attributable to taxable temporary differences from goodwill.", "label": "Deferred Tax Liabilities, Goodwill", "terseLabel": "Goodwill" } } }, "localname": "DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets": { "auth_ref": [ "r478", "r479" ], "calculation": { "http://ati.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails": { "order": 13.0, "parentTag": "us-gaap_DeferredIncomeTaxLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of deferred tax liability attributable to taxable temporary differences from intangible assets other than goodwill.", "label": "Deferred Tax Liabilities, Intangible Assets", "terseLabel": "Trade name/trademark" } } }, "localname": "DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxLiabilitiesLeasingArrangements": { "auth_ref": [ "r478", "r479" ], "calculation": { "http://ati.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails": { "order": 14.0, "parentTag": "us-gaap_DeferredIncomeTaxLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of deferred tax liability attributable to taxable temporary differences from leasing arrangements.", "label": "Deferred Tax Liabilities, Leasing Arrangements", "terseLabel": "Operating right-of-use assets" } } }, "localname": "DeferredTaxLiabilitiesLeasingArrangements", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxLiabilitiesOther": { "auth_ref": [ "r478", "r479" ], "calculation": { "http://ati.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails": { "order": 16.0, "parentTag": "us-gaap_DeferredIncomeTaxLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of deferred tax liability attributable to taxable temporary differences classified as other.", "label": "Deferred Tax Liabilities, Other", "terseLabel": "Other deferred tax liabilities" } } }, "localname": "DeferredTaxLiabilitiesOther", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment": { "auth_ref": [ "r478", "r479" ], "calculation": { "http://ati.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails": { "order": 15.0, "parentTag": "us-gaap_DeferredIncomeTaxLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment.", "label": "Deferred Tax Liabilities, Property, Plant and Equipment", "terseLabel": "Depreciation" } } }, "localname": "DeferredTaxLiabilitiesPropertyPlantAndEquipment", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DefinedContributionPlanCostRecognized": { "auth_ref": [ "r398" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of cost for defined contribution plan.", "label": "Defined Contribution Plan, Cost", "terseLabel": "Contributions to the plan" } } }, "localname": "DefinedContributionPlanCostRecognized", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/EmployeeBenefitPlansDetails", "http://ati.com/role/EmployeeBenefitPlansNarrativesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DefinedContributionPlanDisclosureLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Defined Contribution Plan Disclosure [Line Items]", "terseLabel": "Defined Contribution Plan Disclosure [Line Items]" } } }, "localname": "DefinedContributionPlanDisclosureLineItems", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/EmployeeBenefitPlansDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DefinedContributionPlanDisclosuresTableTextBlock": { "auth_ref": [ "r398" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of defined contribution pension plans or defined contribution other postretirement plans, separately for pension plans and other postretirement benefit plans.", "label": "Defined Contribution Plan Disclosures [Table Text Block]", "terseLabel": "Schedule of Defined Contribution Plan Disclosures" } } }, "localname": "DefinedContributionPlanDisclosuresTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/EmployeeBenefitPlansTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.", "label": "Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay", "terseLabel": "Defined contribution plan, employer matching contribution, percent of employees' gross pay (in percent)" } } }, "localname": "DefinedContributionPlanEmployerMatchingContributionPercent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/EmployeeBenefitPlansNarrativesDetails" ], "xbrltype": "percentItemType" }, "us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Percentage employer matches of the employee's percentage contribution matched.", "label": "Defined Contribution Plan, Employer Matching Contribution, Percent of Match", "terseLabel": "Defined contribution plan, employer matching contribution (in percent)" } } }, "localname": "DefinedContributionPlanEmployerMatchingContributionPercentOfMatch", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/EmployeeBenefitPlansNarrativesDetails" ], "xbrltype": "percentItemType" }, "us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.", "label": "Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent", "terseLabel": "Maximum employee contribution, percent" } } }, "localname": "DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/EmployeeBenefitPlansNarrativesDetails" ], "xbrltype": "percentItemType" }, "us-gaap_DefinedContributionPlanTable": { "auth_ref": [ "r398" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of information about defined contribution pension plans or defined contribution other postretirement plans, separately for pension plans and other postretirement benefit plans.", "label": "Defined Contribution Plan [Table]", "terseLabel": "Defined Contribution Plan [Table]" } } }, "localname": "DefinedContributionPlanTable", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/EmployeeBenefitPlansDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DefinedContributionPlanTextBlock": { "auth_ref": [ "r398", "r399" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for defined contribution plan.", "label": "Defined Contribution Plan [Text Block]", "terseLabel": "Employee Benefit Plans" } } }, "localname": "DefinedContributionPlanTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/EmployeeBenefitPlans" ], "xbrltype": "textBlockItemType" }, "us-gaap_Depreciation": { "auth_ref": [ "r107", "r266" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.", "label": "Depreciation", "terseLabel": "Total depreciation expense" } } }, "localname": "Depreciation", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/PropertyAndEquipmentDepreciationExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DepreciationDepletionAndAmortization": { "auth_ref": [ "r107", "r197" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 35.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.", "label": "Depreciation, Depletion and Amortization", "terseLabel": "Depreciation and amortization" } } }, "localname": "DepreciationDepletionAndAmortization", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_DerivativeContractTypeDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Financial instrument or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.", "label": "Derivative Contract [Domain]", "terseLabel": "Derivative Contract [Domain]" } } }, "localname": "DerivativeContractTypeDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/ContingentCommonSharesLiabilityDetails", "http://ati.com/role/LossEarningsPerShareAntidilutiveSecuritiesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_DerivativeGainLossOnDerivativeNet": { "auth_ref": [ "r538" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.", "label": "Derivative, Gain (Loss) on Derivative, Net", "terseLabel": "Gain (loss) on derivative", "verboseLabel": "Gain on derivative" } } }, "localname": "DerivativeGainLossOnDerivativeNet", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/ContingentCommonSharesLiabilityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DerivativeInstrumentRiskAxis": { "auth_ref": [ "r63", "r537", "r539", "r542", "r543" ], "lang": { "en-us": { "role": { "documentation": "Information by type of derivative contract.", "label": "Derivative Instrument [Axis]", "terseLabel": "Derivative Instrument [Axis]" } } }, "localname": "DerivativeInstrumentRiskAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/ContingentCommonSharesLiabilityDetails", "http://ati.com/role/LossEarningsPerShareAntidilutiveSecuritiesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Derivative Instruments and Hedging Activities Disclosure [Abstract]" } } }, "localname": "DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_DerivativeLiabilitiesNoncurrent": { "auth_ref": [ "r60" ], "calculation": { "http://ati.com/role/ConsolidatedBalanceSheets": { "order": 20.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.", "label": "Derivative Liability, Noncurrent", "terseLabel": "Contingent common shares liability" } } }, "localname": "DerivativeLiabilitiesNoncurrent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/ConsolidatedBalanceSheets", "http://ati.com/role/ContingentCommonSharesLiabilityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DerivativeLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Derivative [Line Items]", "terseLabel": "Derivative [Line Items]" } } }, "localname": "DerivativeLineItems", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ContingentCommonSharesLiabilityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DerivativeTable": { "auth_ref": [ "r531", "r532", "r533", "r534", "r535", "r541", "r542", "r544", "r545", "r547", "r548" ], "lang": { "en-us": { "role": { "documentation": "Schedule that describes and identifies a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item.", "label": "Derivative [Table]", "terseLabel": "Derivative [Table]" } } }, "localname": "DerivativeTable", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ContingentCommonSharesLiabilityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DerivativesAndFairValueTextBlock": { "auth_ref": [ "r560", "r568" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for derivatives and fair value of assets and liabilities.", "label": "Derivatives and Fair Value [Text Block]", "terseLabel": "Contingent Common Shares Liability" } } }, "localname": "DerivativesAndFairValueTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ContingentCommonSharesLiability" ], "xbrltype": "textBlockItemType" }, "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/2021-01-31", "presentation": [ "http://ati.com/role/RevenueFromContractsWithCustomersDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DisaggregationOfRevenueTable": { "auth_ref": [ "r377", "r379", "r380", "r381", "r382", "r383", "r384", "r385" ], "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/2021-01-31", "presentation": [ "http://ati.com/role/RevenueFromContractsWithCustomersDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DisaggregationOfRevenueTableTextBlock": { "auth_ref": [ "r377" ], "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 Net Operating Revenue By Major Service Line and Associated Payor Class" } } }, "localname": "DisaggregationOfRevenueTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/RevenueFromContractsWithCustomersTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock": { "auth_ref": [ "r451" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for share-based payment arrangement.", "label": "Share-based Payment Arrangement [Text Block]", "terseLabel": "Share-Based Compensation" } } }, "localname": "DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensation" ], "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/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_DisposalGroupClassificationAxis": { "auth_ref": [ "r5" ], "lang": { "en-us": { "role": { "documentation": "Information by disposal group classification.", "label": "Disposal Group Classification [Axis]", "terseLabel": "Disposal Group Classification [Axis]" } } }, "localname": "DisposalGroupClassificationAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DisposalGroupClassificationDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Component or group of components disposed of, including but not limited to, disposal group held-for-sale or disposed of by sale, disposed of by means other than sale, and discontinued operations.", "label": "Disposal Group Classification [Domain]", "terseLabel": "Disposal Group Classification [Domain]" } } }, "localname": "DisposalGroupClassificationDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails" ], "xbrltype": "domainItemType" }, "us-gaap_DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMember": { "auth_ref": [ "r265", "r271" ], "lang": { "en-us": { "role": { "documentation": "Disposal group that has been sold. Excludes disposals classified as discontinued operations.", "label": "Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member]", "terseLabel": "Disposal Group, Disposed of by Sale, Not Discontinued Operations" } } }, "localname": "DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails" ], "xbrltype": "domainItemType" }, "us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.", "label": "Disposal Group, Including Discontinued Operation, Consideration", "terseLabel": "Sale price" } } }, "localname": "DisposalGroupIncludingDiscontinuedOperationConsideration", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain": { "auth_ref": [ "r400", "r402" ], "lang": { "en-us": { "role": { "documentation": "Name of disposal group.", "label": "Disposal Group Name [Domain]", "terseLabel": "Disposal Group Name [Domain]" } } }, "localname": "DisposalGroupsIncludingDiscontinuedOperationsNameDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "domainItemType" }, "us-gaap_DomesticCountryMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Designated tax department of the government that is entitled to levy and collect income taxes from the entity in its country of domicile.", "label": "Domestic Tax Authority [Member]", "terseLabel": "Federal" } } }, "localname": "DomesticCountryMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesNarrativeDetails" ], "xbrltype": "domainItemType" }, "us-gaap_EarningsPerShareAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Earnings Per Share [Abstract]", "terseLabel": "(Loss) earnings per share of Class A common stock:", "verboseLabel": "(Loss) earnings per share of Class A common stock:" } } }, "localname": "EarningsPerShareAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfOperations", "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedDetails" ], "xbrltype": "stringItemType" }, "us-gaap_EarningsPerShareBasic": { "auth_ref": [ "r82", "r144", "r145", "r147", "r148", "r149", "r155", "r158", "r168", "r169", "r170", "r174", "r175", "r558", "r559", "r661", "r680" ], "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", "presentationGuidance": "Loss per share, Basic (in dollars per share)", "terseLabel": "Basic (loss) earnings per share (in dollars per share)", "verboseLabel": "Basic (in dollars per share)" } } }, "localname": "EarningsPerShareBasic", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfOperations", "http://ati.com/role/LossEarningsPerShareLossEarningsPerShareCalculationDetails", "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedDetails", "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedNarrativeDetails", "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedStatementOfIncomeDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_EarningsPerShareBasicAndDilutedAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Earnings Per Share, Basic and Diluted [Abstract]", "terseLabel": "Basic and diluted (loss) earnings per share:" } } }, "localname": "EarningsPerShareBasicAndDilutedAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/LossEarningsPerShareLossEarningsPerShareCalculationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_EarningsPerShareDiluted": { "auth_ref": [ "r82", "r144", "r145", "r147", "r148", "r149", "r158", "r168", "r169", "r170", "r174", "r175", "r558", "r559", "r661", "r680" ], "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", "presentationGuidance": "Loss per share, Diluted (in dollars per share)", "terseLabel": "Diluted (loss) earnings per share (in dollars per share)", "verboseLabel": "Diluted (in dollars per share)" } } }, "localname": "EarningsPerShareDiluted", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfOperations", "http://ati.com/role/LossEarningsPerShareLossEarningsPerShareCalculationDetails", "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedDetails", "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedStatementOfIncomeDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_EarningsPerSharePolicyTextBlock": { "auth_ref": [ "r171", "r172" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for computing basic and diluted earnings or loss per share for each class of common stock and participating security. Addresses all significant policy factors, including any antidilutive items that have been excluded from the computation and takes into account stock dividends, splits and reverse splits that occur after the balance sheet date of the latest reporting period but before the issuance of the financial statements.", "label": "Earnings Per Share, Policy [Policy Text Block]", "terseLabel": "(Loss) earnings per share" } } }, "localname": "EarningsPerSharePolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_EarningsPerShareTextBlock": { "auth_ref": [ "r171", "r172", "r173", "r176" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for earnings per share.", "label": "Earnings Per Share [Text Block]", "terseLabel": "(Loss) Earnings per Share" } } }, "localname": "EarningsPerShareTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/LossEarningsPerShare" ], "xbrltype": "textBlockItemType" }, "us-gaap_EffectiveIncomeTaxRateContinuingOperations": { "auth_ref": [ "r461" ], "calculation": { "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails": { "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", "terseLabel": "Effect income tax rate (in percent)", "totalLabel": "Total income tax (benefit) expense" } } }, "localname": "EffectiveIncomeTaxRateContinuingOperations", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails", "http://ati.com/role/IncomeTaxesNarrativeDetails" ], "xbrltype": "percentItemType" }, "us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Effective Income Tax Rate Reconciliation, Percent [Abstract]", "terseLabel": "Effective Income Tax Rate Reconciliation, Percent [Abstract]" } } }, "localname": "EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails" ], "xbrltype": "stringItemType" }, "us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate": { "auth_ref": [ "r123", "r461", "r493" ], "calculation": { "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails": { "order": 10.0, "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 income tax benefit at statutory rate" } } }, "localname": "EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails" ], "xbrltype": "percentItemType" }, "us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance": { "auth_ref": [ "r461", "r493" ], "calculation": { "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails": { "order": 14.0, "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 changes in the valuation allowance for deferred tax assets.", "label": "Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent", "terseLabel": "Valuation allowance" } } }, "localname": "EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails" ], "xbrltype": "percentItemType" }, "us-gaap_EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate": { "auth_ref": [ "r461", "r493" ], "calculation": { "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails": { "order": 12.0, "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 changes in the income tax rates.", "label": "Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent", "terseLabel": "Change in state tax rate" } } }, "localname": "EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails" ], "xbrltype": "percentItemType" }, "us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpense": { "auth_ref": [ "r461", "r493" ], "calculation": { "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails": { "order": 18.0, "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 nondeductible expenses.", "label": "Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent", "terseLabel": "Other permanent differences, net" } } }, "localname": "EffectiveIncomeTaxRateReconciliationNondeductibleExpense", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails" ], "xbrltype": "percentItemType" }, "us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses": { "auth_ref": [ "r461", "r493" ], "calculation": { "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails": { "order": 17.0, "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 impairment loss.", "label": "Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Percent", "terseLabel": "Goodwill and intangible asset impairment charges" } } }, "localname": "EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails" ], "xbrltype": "percentItemType" }, "us-gaap_EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes": { "auth_ref": [ "r461", "r493" ], "calculation": { "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails": { "order": 13.0, "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 revisions of previously reported income tax expense.", "label": "Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Percent", "terseLabel": "Prior period adjustments and other" } } }, "localname": "EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails" ], "xbrltype": "percentItemType" }, "us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes": { "auth_ref": [ "r461", "r493" ], "calculation": { "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails": { "order": 11.0, "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 income tax (benefit) expense, net of federal tax benefit" } } }, "localname": "EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails" ], "xbrltype": "percentItemType" }, "us-gaap_EmployeeRelatedLiabilitiesCurrent": { "auth_ref": [ "r46" ], "calculation": { "http://ati.com/role/AccruedExpensesAndOtherLiabilitiesDetails": { "order": 1.0, "parentTag": "us-gaap_AccruedLiabilitiesAndOtherLiabilities", "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": "Salaries and related costs" } } }, "localname": "EmployeeRelatedLiabilitiesCurrent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/AccruedExpensesAndOtherLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized": { "auth_ref": [ "r437" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of cost not yet recognized for nonvested award under share-based payment arrangement.", "label": "Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount", "terseLabel": "Unrecognized compensation expense" } } }, "localname": "EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationNarrativeDetails", "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1": { "auth_ref": [ "r437" ], "lang": { "en-us": { "role": { "documentation": "Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.", "label": "Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition", "terseLabel": "Period of recognition" } } }, "localname": "EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationNarrativeDetails" ], "xbrltype": "durationItemType" }, "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions": { "auth_ref": [ "r437" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of cost to be recognized for option under share-based payment arrangement.", "label": "Share-based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount", "terseLabel": "Share-based payment arrangement, nonvested award, option, cost not yet recognized, amount" } } }, "localname": "EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EmployeeStockOptionMember": { "auth_ref": [ "r435" ], "lang": { "en-us": { "role": { "documentation": "Share-based payment arrangement granting right, subject to vesting and other restrictions, to purchase or sell certain number of shares at predetermined price for specified period of time.", "label": "Share-based Payment Arrangement, Option [Member]", "terseLabel": "Stock options" } } }, "localname": "EmployeeStockOptionMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/LossEarningsPerShareAntidilutiveSecuritiesDetails", "http://ati.com/role/ShareBasedCompensationNarrativeDetails", "http://ati.com/role/ShareBasedCompensationValuationAssumptionDetails" ], "xbrltype": "domainItemType" }, "us-gaap_EquipmentMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Tangible personal property used to produce goods and services.", "label": "Equipment [Member]", "terseLabel": "Equipment" } } }, "localname": "EquipmentMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPropertyAndEquipmentDetails", "http://ati.com/role/PropertyAndEquipmentCarryingAmountDetails" ], "xbrltype": "domainItemType" }, "us-gaap_EquityAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Equity [Abstract]" } } }, "localname": "EquityAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_EquityComponentDomain": { "auth_ref": [ "r2", "r75", "r76", "r77", "r136", "r137", "r138", "r141", "r150", "r153", "r180", "r236", "r346", "r355", "r443", "r444", "r445", "r486", "r487", "r557", "r580", "r581", "r582", "r583", "r584", "r585", "r688", "r689", "r690", "r719" ], "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/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity" ], "xbrltype": "domainItemType" }, "us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems": { "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": "Error Corrections and Prior Period Adjustments Restatement [Line Items]", "terseLabel": "Error Corrections and Prior Period Adjustments Restatement [Line Items]" } } }, "localname": "ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails", "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedNarrativeDetails", "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedStatementOfIncomeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueAdjustmentOfWarrants": { "auth_ref": [ "r107", "r323" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 23.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 }, "http://ati.com/role/ConsolidatedStatementsOfOperations": { "order": 12.0, "parentTag": "us-gaap_IncomeLossIncludingPortionAttributableToNoncontrollingInterest", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of expense (income) related to adjustment to fair value of warrant liability.", "label": "Fair Value Adjustment of Warrants", "negatedLabel": "Change in fair value of warrant liability (Note 13)", "terseLabel": "Change in fair value of warrant liability", "verboseLabel": "Change in fair value of warrant liability (Note 13)" } } }, "localname": "FairValueAdjustmentOfWarrants", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/ConsolidatedStatementsOfCashFlows", "http://ati.com/role/ConsolidatedStatementsOfOperations", "http://ati.com/role/WarrantLiabilityWarrantLiabilityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems": { "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 Measurement Inputs and Valuation Techniques [Line Items]", "terseLabel": "Fair Value Measurement Inputs and Valuation Techniques [Line Items]" } } }, "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/FairValueMeasurementsMeasurementInputsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable": { "auth_ref": [ "r562" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of information about input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis.", "label": "Fair Value Measurement Inputs and Valuation Techniques [Table]", "terseLabel": "Fair Value Measurement Inputs and Valuation Techniques [Table]" } } }, "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/FairValueMeasurementsMeasurementInputsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock": { "auth_ref": [ "r562" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis.", "label": "Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]", "terseLabel": "Schedule of Key Fair Value Measurement Inputs" } } }, "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/FairValueMeasurementsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_FairValueByFairValueHierarchyLevelAxis": { "auth_ref": [ "r303", "r316", "r317", "r389", "r390", "r391", "r392", "r393", "r394", "r395", "r397", "r561", "r621", "r622", "r623" ], "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/2021-01-31", "presentation": [ "http://ati.com/role/FairValueMeasurementsMeasurementInputsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueByLiabilityClassAxis": { "auth_ref": [ "r565", "r566" ], "lang": { "en-us": { "role": { "documentation": "Information by class of liability.", "label": "Liability Class [Axis]", "terseLabel": "Liability Class [Axis]" } } }, "localname": "FairValueByLiabilityClassAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/ContingentCommonSharesLiabilityDetails", "http://ati.com/role/FairValueMeasurementsChangesInFairValueOfLevel3InstrumentsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueDisclosuresAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Fair Value Disclosures [Abstract]" } } }, "localname": "FairValueDisclosuresAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_FairValueDisclosuresTextBlock": { "auth_ref": [ "r565" ], "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/2021-01-31", "presentation": [ "http://ati.com/role/FairValueMeasurements" ], "xbrltype": "textBlockItemType" }, "us-gaap_FairValueInputsLevel3Member": { "auth_ref": [ "r303", "r316", "r317", "r389", "r390", "r391", "r392", "r393", "r394", "r395", "r397", "r561", "r623" ], "lang": { "en-us": { "role": { "documentation": "Unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.", "label": "Fair Value, Inputs, Level 3 [Member]", "terseLabel": "Fair Value, Inputs, Level 3" } } }, "localname": "FairValueInputsLevel3Member", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/FairValueMeasurementsMeasurementInputsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain": { "auth_ref": [ "r563" ], "lang": { "en-us": { "role": { "documentation": "Represents classes of liabilities measured and disclosed at fair value.", "label": "Fair Value by Liability Class [Domain]", "terseLabel": "Fair Value by Liability Class [Domain]" } } }, "localname": "FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/ContingentCommonSharesLiabilityDetails", "http://ati.com/role/FairValueMeasurementsChangesInFairValueOfLevel3InstrumentsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward": { "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": "Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]", "terseLabel": "Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]" } } }, "localname": "FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/FairValueMeasurementsChangesInFairValueOfLevel3InstrumentsDetails", "http://ati.com/role/WarrantLiabilityWarrantLiabilityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems": { "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, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]", "terseLabel": "Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]" } } }, "localname": "FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/FairValueMeasurementsChangesInFairValueOfLevel3InstrumentsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable": { "auth_ref": [ "r563", "r566" ], "lang": { "en-us": { "role": { "documentation": "Schedule of information required and determined to be provided for purposes of reconciling beginning and ending balances of fair value measurements of liabilities using significant unobservable inputs (level 3). Separately presenting changes during the period, attributable to: (1) total gains or losses for the period (realized and unrealized) and location reported in the statement of income (or activities); (2) purchases, sales, issuances, and settlements (net); (3) transfers in and/or out of Level 3.", "label": "Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table]", "terseLabel": "Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table]" } } }, "localname": "FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/FairValueMeasurementsChangesInFairValueOfLevel3InstrumentsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings": { "auth_ref": [ "r564" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3).", "label": "Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings", "terseLabel": "Changes in fair value" } } }, "localname": "FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/FairValueMeasurementsChangesInFairValueOfLevel3InstrumentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue": { "auth_ref": [ "r563" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.", "label": "Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value", "periodEndLabel": "Fair value as of December\u00a031, 2021", "periodStartLabel": "Fair value as of Business Combination, June 16, 2021" } } }, "localname": "FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/FairValueMeasurementsChangesInFairValueOfLevel3InstrumentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FairValueMeasurementsFairValueHierarchyDomain": { "auth_ref": [ "r303", "r316", "r317", "r389", "r390", "r391", "r392", "r393", "r394", "r395", "r397", "r621", "r622", "r623" ], "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/2021-01-31", "presentation": [ "http://ati.com/role/FairValueMeasurementsMeasurementInputsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueOfFinancialInstrumentsPolicy": { "auth_ref": [ "r567", "r569" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for determining the fair value of financial instruments.", "label": "Fair Value of Financial Instruments, Policy [Policy Text Block]", "terseLabel": "Fair value of financial instruments" } } }, "localname": "FairValueOfFinancialInstrumentsPolicy", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_FederalFundsEffectiveSwapRateMember": { "auth_ref": [ "r546" ], "lang": { "en-us": { "role": { "documentation": "Fixed rate on U.S. dollar, constant-notional interest rate swap having its variable-rate leg referenced to Federal Funds effective rate with no additional spread over Federal Funds effective rate on that variable-rate leg.", "label": "Fed Funds Effective Rate Overnight Index Swap Rate [Member]", "terseLabel": "Fed Funds Effective Rate" } } }, "localname": "FederalFundsEffectiveSwapRateMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BorrowingsNarrativeDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FiniteLivedIntangibleAssetUsefulLife": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.", "label": "Finite-Lived Intangible Asset, Useful Life", "terseLabel": "Useful life" } } }, "localname": "FiniteLivedIntangibleAssetUsefulLife", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesIntangibleAssetsDetails" ], "xbrltype": "durationItemType" }, "us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization": { "auth_ref": [ "r258" ], "calculation": { "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssetsIntangibleAssetsDetails": { "order": 3.0, "parentTag": "us-gaap_IntangibleAssetsNetExcludingGoodwill", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.", "label": "Finite-Lived Intangible Assets, Accumulated Amortization", "negatedTerseLabel": "Accumulated amortization:" } } }, "localname": "FiniteLivedIntangibleAssetsAccumulatedAmortization", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssetsIntangibleAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis": { "auth_ref": [ "r252", "r254", "r258", "r260", "r632", "r636" ], "lang": { "en-us": { "role": { "documentation": "Information by major type or class of finite-lived intangible assets.", "label": "Finite-Lived Intangible Assets by Major Class [Axis]", "terseLabel": "Finite-Lived Intangible Assets by Major Class [Axis]" } } }, "localname": "FiniteLivedIntangibleAssetsByMajorClassAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesIntangibleAssetsDetails", "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssetsIntangibleAssetsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FiniteLivedIntangibleAssetsGross": { "auth_ref": [ "r258", "r636" ], "calculation": { "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssetsIntangibleAssetsDetails": { "order": 2.0, "parentTag": "us-gaap_IntangibleAssetsNetExcludingGoodwill", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.", "label": "Finite-Lived Intangible Assets, Gross", "terseLabel": "Gross intangible assets" } } }, "localname": "FiniteLivedIntangibleAssetsGross", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssetsIntangibleAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetsLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Finite-Lived Intangible Assets [Line Items]", "terseLabel": "Finite-Lived Intangible Assets [Line Items]" } } }, "localname": "FiniteLivedIntangibleAssetsLineItems", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesIntangibleAssetsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain": { "auth_ref": [ "r252", "r257" ], "lang": { "en-us": { "role": { "documentation": "The major class of finite-lived intangible asset (for example, patents, trademarks, copyrights, etc.) A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.", "label": "Finite-Lived Intangible Assets, Major Class Name [Domain]", "terseLabel": "Finite-Lived Intangible Assets, Major Class Name [Domain]" } } }, "localname": "FiniteLivedIntangibleAssetsMajorClassNameDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesIntangibleAssetsDetails", "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssetsIntangibleAssetsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FurnitureAndFixturesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases.", "label": "Furniture and Fixtures [Member]", "terseLabel": "Furniture and fixtures" } } }, "localname": "FurnitureAndFixturesMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPropertyAndEquipmentDetails", "http://ati.com/role/PropertyAndEquipmentCarryingAmountDetails" ], "xbrltype": "domainItemType" }, "us-gaap_GainLossOnDerivativeInstrumentsNetPretax": { "auth_ref": [ "r537" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfOperations": { "order": 13.0, "parentTag": "us-gaap_IncomeLossIncludingPortionAttributableToNoncontrollingInterest", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects.", "label": "Gain (Loss) on Derivative Instruments, Net, Pretax", "negatedTerseLabel": "Change in fair value of contingent common shares liability (Note 14)" } } }, "localname": "GainLossOnDerivativeInstrumentsNetPretax", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfOperations" ], "xbrltype": "monetaryItemType" }, "us-gaap_GainLossOnSaleOfBusiness": { "auth_ref": [ "r107", "r521" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant.", "label": "Gain (Loss) on Disposition of Business", "terseLabel": "Gain on disposition of business" } } }, "localname": "GainLossOnSaleOfBusiness", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_GainLossOnSalesOfAssetsAndAssetImpairmentCharges": { "auth_ref": [ "r107" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 25.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of gain (loss) from the difference between the sale price or salvage price and the book value of an asset that was sold or retired, and gain (loss) from the write down of assets from their carrying value to fair value.", "label": "Gain (Loss) on Sale of Assets and Asset Impairment Charges", "negatedTerseLabel": "(Gain) loss on disposal and impairment of assets" } } }, "localname": "GainLossOnSalesOfAssetsAndAssetImpairmentCharges", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_GainLossOnTerminationOfLease": { "auth_ref": [ "r593" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 24.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of gain (loss) on termination of lease before expiration of lease term.", "label": "Gain (Loss) on Termination of Lease", "negatedLabel": "Loss on lease terminations and impairment", "terseLabel": "Loss on lease terminations and impairment" } } }, "localname": "GainLossOnTerminationOfLease", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows", "http://ati.com/role/LeasesNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_GainsLossesOnExtinguishmentOfDebt": { "auth_ref": [ "r107", "r320", "r321" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 27.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.", "label": "Gain (Loss) on Extinguishment of Debt", "negatedTerseLabel": "Loss on extinguishment of debt" } } }, "localname": "GainsLossesOnExtinguishmentOfDebt", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BorrowingsNarrativeDetails", "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_Goodwill": { "auth_ref": [ "r243", "r245", "r617", "r649" ], "calculation": { "http://ati.com/role/ConsolidatedBalanceSheets": { "order": 8.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.", "label": "Goodwill", "periodEndLabel": "Ending balance", "periodStartLabel": "Beginning balance", "terseLabel": "Goodwill, net" } } }, "localname": "Goodwill", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/ConsolidatedBalanceSheets", "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssetsGoodwillDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_GoodwillAcquiredDuringPeriod": { "auth_ref": [ "r246" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.", "label": "Goodwill, Acquired During Period", "terseLabel": "Additions \u2013 acquisitions" } } }, "localname": "GoodwillAcquiredDuringPeriod", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssetsGoodwillDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_GoodwillAndIntangibleAssetImpairment": { "auth_ref": [], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 36.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 }, "http://ati.com/role/ConsolidatedStatementsOfOperations": { "order": 10.0, "parentTag": "us-gaap_OperatingIncomeLoss", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Total loss recognized during the period from the impairment of goodwill plus the loss recognized in the period resulting from the impairment of the carrying amount of intangible assets, other than goodwill.", "label": "Goodwill and Intangible Asset Impairment", "terseLabel": "Goodwill and intangible asset impairment charges" } } }, "localname": "GoodwillAndIntangibleAssetImpairment", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows", "http://ati.com/role/ConsolidatedStatementsOfOperations", "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedDetails", "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedStatementOfIncomeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Goodwill and Intangible Assets Disclosure [Abstract]" } } }, "localname": "GoodwillAndIntangibleAssetsDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock": { "auth_ref": [ "r263" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for goodwill and intangible assets.", "label": "Goodwill and Intangible Assets Disclosure [Text Block]", "terseLabel": "Goodwill, Trade Name and Other Intangible Assets" } } }, "localname": "GoodwillAndIntangibleAssetsDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssets" ], "xbrltype": "textBlockItemType" }, "us-gaap_GoodwillAndIntangibleAssetsPolicyTextBlock": { "auth_ref": [ "r248", "r255" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for goodwill and intangible assets. This accounting policy also may address how an entity assesses and measures impairment of goodwill and intangible assets.", "label": "Goodwill and Intangible Assets, Policy [Policy Text Block]", "terseLabel": "Goodwill and intangible assets" } } }, "localname": "GoodwillAndIntangibleAssetsPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_GoodwillImpairmentLoss": { "auth_ref": [ "r107", "r244", "r247", "r249" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.", "label": "Goodwill, Impairment Loss", "negatedLabel": "Reductions - impairment charges", "terseLabel": "Goodwill impairment loss" } } }, "localname": "GoodwillImpairmentLoss", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssetsGoodwillDetails", "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssetsNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_GoodwillRollForward": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.", "label": "Goodwill [Roll Forward]", "terseLabel": "Goodwill [Roll Forward]" } } }, "localname": "GoodwillRollForward", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssetsGoodwillDetails" ], "xbrltype": "stringItemType" }, "us-gaap_HealthCareOrganizationAccountsPayableToThirdPartyPayor": { "auth_ref": [ "r699" ], "calculation": { "http://ati.com/role/AccruedExpensesAndOtherLiabilitiesDetails": { "order": 8.0, "parentTag": "us-gaap_AccruedLiabilitiesAndOtherLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount payable to third-party payor by health care organization for contractual adjustment and final settlement.", "label": "Health Care Organization, Accounts Payable to Third-Party Payor", "terseLabel": "Credit balance due to patients and payors" } } }, "localname": "HealthCareOrganizationAccountsPayableToThirdPartyPayor", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/AccruedExpensesAndOtherLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_HealthCarePatientServiceMember": { "auth_ref": [ "r379" ], "lang": { "en-us": { "role": { "documentation": "Service provided to patient for maintenance, diagnosis and treatment of physical and mental health. Excludes service to resident in health care facility.", "label": "Health Care, Patient Service [Member]", "terseLabel": "Net patient revenue" } } }, "localname": "HealthCarePatientServiceMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfOperations", "http://ati.com/role/RevenueFromContractsWithCustomersDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill": { "auth_ref": [ "r107", "r261" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value.", "label": "Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)", "terseLabel": "Impairment of indefinite lived intangible assets" } } }, "localname": "ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssetsNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock": { "auth_ref": [ "r264", "r272" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for recognizing and measuring the impairment of long-lived assets. An entity also may disclose its accounting policy for long-lived assets to be sold. This policy excludes goodwill and intangible assets.", "label": "Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block]", "terseLabel": "Impairment of long-lived assets" } } }, "localname": "ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_IncomeLossIncludingPortionAttributableToNoncontrollingInterest": { "auth_ref": [ "r77", "r86" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfOperations": { "order": 3.0, "parentTag": "us-gaap_ProfitLoss", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount, before tax, of income (loss) including portion attributable to noncontrolling interest. Includes, but is not limited to, income (loss) from continuing operations, discontinued operations and equity method investments.", "label": "Income (Loss), Including Portion Attributable to Noncontrolling Interest, before Tax", "terseLabel": "Loss before taxes", "totalLabel": "(Loss) income before taxes" } } }, "localname": "IncomeLossIncludingPortionAttributableToNoncontrollingInterest", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfOperations", "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedDetails", "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedStatementOfIncomeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeStatementAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Income Statement [Abstract]" } } }, "localname": "IncomeStatementAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis": { "auth_ref": [ "r400", "r402" ], "lang": { "en-us": { "role": { "documentation": "Information by name of disposal group.", "label": "Disposal Group Name [Axis]", "terseLabel": "Disposal Group Name [Axis]" } } }, "localname": "IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_IncomeStatementLocationAxis": { "auth_ref": [ "r270", "r274" ], "lang": { "en-us": { "role": { "documentation": "Information by location in the income statement.", "label": "Income Statement Location [Axis]", "terseLabel": "Income Statement Location [Axis]" } } }, "localname": "IncomeStatementLocationAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesAdvertisingCostsDetails", "http://ati.com/role/EmployeeBenefitPlansDetails", "http://ati.com/role/PropertyAndEquipmentDepreciationExpenseDetails" ], "xbrltype": "stringItemType" }, "us-gaap_IncomeStatementLocationDomain": { "auth_ref": [ "r274" ], "lang": { "en-us": { "role": { "documentation": "Location in the income statement.", "label": "Income Statement Location [Domain]", "terseLabel": "Income Statement Location [Domain]" } } }, "localname": "IncomeStatementLocationDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesAdvertisingCostsDetails", "http://ati.com/role/EmployeeBenefitPlansDetails", "http://ati.com/role/PropertyAndEquipmentDepreciationExpenseDetails" ], "xbrltype": "domainItemType" }, "us-gaap_IncomeTaxAuthorityAxis": { "auth_ref": [ "r463" ], "lang": { "en-us": { "role": { "documentation": "Information by tax jurisdiction.", "label": "Income Tax Authority [Axis]", "terseLabel": "Income Tax Authority [Axis]" } } }, "localname": "IncomeTaxAuthorityAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_IncomeTaxAuthorityDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Agency, division or body classification that levies income taxes, examines tax returns for compliance, or grants exemptions from or makes other decisions pertaining to income taxes.", "label": "Income Tax Authority [Domain]", "terseLabel": "Income Tax Authority [Domain]" } } }, "localname": "IncomeTaxAuthorityDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesNarrativeDetails" ], "xbrltype": "domainItemType" }, "us-gaap_IncomeTaxDisclosureAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Income Tax Disclosure [Abstract]" } } }, "localname": "IncomeTaxDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_IncomeTaxDisclosureTextBlock": { "auth_ref": [ "r123", "r462", "r468", "r475", "r488", "r494", "r496", "r497", "r498" ], "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/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxes" ], "xbrltype": "textBlockItemType" }, "us-gaap_IncomeTaxExpenseBenefit": { "auth_ref": [ "r124", "r152", "r153", "r198", "r460", "r489", "r495", "r681" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfOperations": { "order": 2.0, "parentTag": "us-gaap_ProfitLoss", "weight": -1.0 }, "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://ati.com/role/IncomeTaxesSummaryOfCompanysProvisionForIncomeTaxExpenseBenefitDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.", "label": "Income Tax Expense (Benefit)", "terseLabel": "Income tax (benefit) expense", "totalLabel": "Income tax (benefit) expense", "verboseLabel": "Income tax benefit" } } }, "localname": "IncomeTaxExpenseBenefit", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfOperations", "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails", "http://ati.com/role/IncomeTaxesSummaryOfCompanysProvisionForIncomeTaxExpenseBenefitDetails", "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedDetails", "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedNarrativeDetails", "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedStatementOfIncomeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Effective Income Tax Rate Reconciliation, Amount [Abstract]", "terseLabel": "Effective Income Tax Rate Reconciliation, Amount [Abstract]" } } }, "localname": "IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails" ], "xbrltype": "stringItemType" }, "us-gaap_IncomeTaxPolicyTextBlock": { "auth_ref": [ "r74", "r456", "r457", "r468", "r469", "r474", "r482" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements.", "label": "Income Tax, Policy [Policy Text Block]", "terseLabel": "Income taxes" } } }, "localname": "IncomeTaxPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance": { "auth_ref": [ "r461" ], "calculation": { "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails": { "order": 5.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount 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 increase (decrease) in the valuation allowance for deferred tax assets.", "label": "Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount", "terseLabel": "Valuation allowance" } } }, "localname": "IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate": { "auth_ref": [ "r455", "r461" ], "calculation": { "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails": { "order": 3.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount 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 increase (decrease) in the income tax rates.", "label": "Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount", "terseLabel": "Change in state tax rate" } } }, "localname": "IncomeTaxReconciliationChangeInEnactedTaxRate", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate": { "auth_ref": [ "r461" ], "calculation": { "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails": { "order": 1.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.", "label": "Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount", "terseLabel": "Federal income tax benefit at statutory rate" } } }, "localname": "IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxReconciliationNondeductibleExpense": { "auth_ref": [ "r461" ], "calculation": { "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails": { "order": 9.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount 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 nondeductible expenses.", "label": "Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount", "terseLabel": "Other permanent differences, net" } } }, "localname": "IncomeTaxReconciliationNondeductibleExpense", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses": { "auth_ref": [ "r461" ], "calculation": { "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails": { "order": 8.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount 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 nondeductible impairment loss.", "label": "Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Amount", "terseLabel": "Goodwill and intangible asset impairment charges" } } }, "localname": "IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxReconciliationPriorYearIncomeTaxes": { "auth_ref": [ "r461" ], "calculation": { "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails": { "order": 4.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount 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 revisions of previously reported income tax expense (benefit).", "label": "Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Amount", "terseLabel": "Prior period adjustments and other" } } }, "localname": "IncomeTaxReconciliationPriorYearIncomeTaxes", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes": { "auth_ref": [ "r461" ], "calculation": { "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails": { "order": 2.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount 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 state and local income tax expense (benefit).", "label": "Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount", "terseLabel": "State income tax (benefit) expense, net of federal tax benefit" } } }, "localname": "IncomeTaxReconciliationStateAndLocalIncomeTaxes", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesDifferencesBetweenTheFederalTaxRateAndTheCompanysEffectiveTaxRateDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxesPaidNet": { "auth_ref": [ "r111" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.", "label": "Income Taxes Paid, Net", "terseLabel": "Cash paid for (received from) taxes" } } }, "localname": "IncomeTaxesPaidNet", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInAccountsPayableTrade": { "auth_ref": [ "r106" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 18.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Change in recurring obligations of a business that arise from the acquisition of merchandise, materials, supplies and services used in the production and sale of goods and services.", "label": "Increase (Decrease) in Accounts Payable, Trade", "terseLabel": "Accounts payable" } } }, "localname": "IncreaseDecreaseInAccountsPayableTrade", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInAccountsReceivable": { "auth_ref": [ "r106" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 21.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services.", "label": "Increase (Decrease) in Accounts Receivable", "negatedTerseLabel": "Accounts receivable, net" } } }, "localname": "IncreaseDecreaseInAccountsReceivable", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities": { "auth_ref": [ "r106" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 17.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of increase (decrease) in accrued expenses, and obligations classified as other.", "label": "Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities", "terseLabel": "Accrued expenses and other liabilities" } } }, "localname": "IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInOperatingCapitalAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Increase (Decrease) in Operating Capital [Abstract]", "terseLabel": "Changes in:" } } }, "localname": "IncreaseDecreaseInOperatingCapitalAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_IncreaseDecreaseInOperatingLeaseLiability": { "auth_ref": [ "r106", "r602" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 16.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of increase (decrease) in obligation for operating lease.", "label": "Increase (Decrease) in Operating Lease Liability", "terseLabel": "Operating lease liabilities" } } }, "localname": "IncreaseDecreaseInOperatingLeaseLiability", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInOtherNoncurrentAssets": { "auth_ref": [ "r106" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 19.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of increase (decrease) in noncurrent assets classified as other.", "label": "Increase (Decrease) in Other Noncurrent Assets", "negatedTerseLabel": "Other non-current assets" } } }, "localname": "IncreaseDecreaseInOtherNoncurrentAssets", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities": { "auth_ref": [], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 15.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of increase (decrease) in noncurrent operating liabilities classified as other.", "label": "Increase (Decrease) in Other Noncurrent Liabilities", "terseLabel": "Other non-current liabilities" } } }, "localname": "IncreaseDecreaseInOtherNoncurrentLiabilities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets": { "auth_ref": [ "r106" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 20.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of increase (decrease) in prepaid expenses, and assets classified as other.", "label": "Increase (Decrease) in Prepaid Expense and Other Assets", "negatedTerseLabel": "Prepaid expenses and other current assets" } } }, "localname": "IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.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/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity" ], "xbrltype": "stringItemType" }, "us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis": { "auth_ref": [ "r253", "r259" ], "lang": { "en-us": { "role": { "documentation": "Information by type or class of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.", "label": "Indefinite-lived Intangible Assets [Axis]", "terseLabel": "Indefinite-lived Intangible Assets [Axis]" } } }, "localname": "IndefiniteLivedIntangibleAssetsByMajorClassAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssetsIntangibleAssetsDetails", "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssetsNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Indefinite-lived Intangible Assets [Line Items]", "terseLabel": "Indefinite-lived Intangible Assets [Line Items]" } } }, "localname": "IndefiniteLivedIntangibleAssetsByMajorClassLineItems", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssetsIntangibleAssetsDetails", "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssetsNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill": { "auth_ref": [ "r259" ], "calculation": { "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssetsIntangibleAssetsDetails": { "order": 1.0, "parentTag": "us-gaap_IntangibleAssetsNetExcludingGoodwill", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.", "label": "Indefinite-lived Intangible Assets (Excluding Goodwill)", "terseLabel": "Gross intangible assets" } } }, "localname": "IndefiniteLivedIntangibleAssetsExcludingGoodwill", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssetsIntangibleAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain": { "auth_ref": [ "r253", "r259" ], "lang": { "en-us": { "role": { "documentation": "The major class of indefinite-lived intangible asset (for example, trade names, etc. but not all-inclusive), excluding goodwill. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of the company.", "label": "Indefinite-lived Intangible Assets, Major Class Name [Domain]", "terseLabel": "Indefinite-lived Intangible Assets, Major Class Name [Domain]" } } }, "localname": "IndefiniteLivedIntangibleAssetsMajorClassNameDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssetsIntangibleAssetsDetails", "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssetsNarrativeDetails" ], "xbrltype": "domainItemType" }, "us-gaap_IntangibleAssetsNetExcludingGoodwill": { "auth_ref": [ "r251", "r256" ], "calculation": { "http://ati.com/role/ConsolidatedBalanceSheets": { "order": 9.0, "parentTag": "us-gaap_Assets", "weight": 1.0 }, "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssetsIntangibleAssetsDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.", "label": "Intangible Assets, Net (Excluding Goodwill)", "terseLabel": "Trade name and other intangible assets, net", "totalLabel": "Trade name and other intangible assets, net" } } }, "localname": "IntangibleAssetsNetExcludingGoodwill", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedBalanceSheets", "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssetsIntangibleAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestPaidNet": { "auth_ref": [ "r101", "r104", "r111" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.", "label": "Interest Paid, Excluding Capitalized Interest, Operating Activities", "terseLabel": "Cash paid for interest" } } }, "localname": "InterestPaidNet", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_LaborAndRelatedExpense": { "auth_ref": [ "r85" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfOperations": { "order": 6.0, "parentTag": "us-gaap_OperatingCostsAndExpenses", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of expense for salary, wage, profit sharing; incentive and equity-based compensation; and other employee benefit.", "label": "Labor and Related Expense", "terseLabel": "Salaries and related costs" } } }, "localname": "LaborAndRelatedExpense", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfOperations" ], "xbrltype": "monetaryItemType" }, "us-gaap_LeaseCost": { "auth_ref": [ "r606", "r608" ], "calculation": { "http://ati.com/role/LeasesLeaseCostDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of lease cost recognized by lessee for lease contract.", "label": "Lease, Cost", "totalLabel": "Total lease cost" } } }, "localname": "LeaseCost", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/LeasesLeaseCostDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LeaseCostTableTextBlock": { "auth_ref": [ "r606" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income.", "label": "Lease, Cost [Table Text Block]", "terseLabel": "Schedule of Lease Cost, Supplemental Cash Flow, and Other Information Related to Leases" } } }, "localname": "LeaseCostTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/LeasesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_LeaseholdImprovementsMember": { "auth_ref": [ "r267" ], "lang": { "en-us": { "role": { "documentation": "Additions or improvements to assets held under a lease arrangement.", "label": "Leasehold Improvements [Member]", "terseLabel": "Leasehold improvements" } } }, "localname": "LeaseholdImprovementsMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPropertyAndEquipmentDetails", "http://ati.com/role/PropertyAndEquipmentCarryingAmountDetails" ], "xbrltype": "domainItemType" }, "us-gaap_LeasesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Leases [Abstract]" } } }, "localname": "LeasesAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_LesseeLeaseDescriptionLineItems": { "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": "Lessee, Lease, Description [Line Items]", "terseLabel": "Lessee, Lease, Description [Line Items]" } } }, "localname": "LesseeLeaseDescriptionLineItems", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/LeasesNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LesseeLeaseDescriptionTable": { "auth_ref": [ "r599" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of information about lessee's leases.", "label": "Lessee, Lease, Description [Table]", "terseLabel": "Lessee, Lease, Description [Table]" } } }, "localname": "LesseeLeaseDescriptionTable", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/LeasesNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LesseeLeasesPolicyTextBlock": { "auth_ref": [ "r597" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for leasing arrangement entered into by lessee.", "label": "Lessee, Leases [Policy Text Block]", "terseLabel": "Leases" } } }, "localname": "LesseeLeasesPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock": { "auth_ref": [ "r607" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position.", "label": "Lessee, Operating Lease, Liability, Maturity [Table Text Block]", "terseLabel": "Schedule of Estimated Undiscounted Future Lease Payments" } } }, "localname": "LesseeOperatingLeaseLiabilityMaturityTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/LeasesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue": { "auth_ref": [ "r607" ], "calculation": { "http://ati.com/role/LeasesMaturityDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease.", "label": "Lessee, Operating Lease, Liability, to be Paid", "totalLabel": "Total undiscounted future cash flows" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/LeasesMaturityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive": { "auth_ref": [ "r607" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease due after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Lessee, Operating Lease, Liability, to be Paid, after Year Five", "terseLabel": "Thereafter" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/LeasesMaturityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths": { "auth_ref": [ "r607" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Lessee, Operating Lease, Liability, to be Paid, Year One", "terseLabel": "2022" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/LeasesMaturityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive": { "auth_ref": [ "r607" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Lessee, Operating Lease, Liability, to be Paid, Year Five", "terseLabel": "2026" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearFive", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/LeasesMaturityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour": { "auth_ref": [ "r607" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Lessee, Operating Lease, Liability, to be Paid, Year Four", "terseLabel": "2025" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearFour", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/LeasesMaturityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree": { "auth_ref": [ "r607" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Lessee, Operating Lease, Liability, to be Paid, Year Three", "terseLabel": "2024" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearThree", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/LeasesMaturityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo": { "auth_ref": [ "r607" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Lessee, Operating Lease, Liability, to be Paid, Year Two", "terseLabel": "2023" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearTwo", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/LeasesMaturityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount": { "auth_ref": [ "r607" ], "calculation": { "http://ati.com/role/LeasesMaturityDetails": { "order": 1.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease.", "label": "Lessee, Operating Lease, Liability, Undiscounted Excess Amount", "negatedLabel": "Less: Imputed Interest" } } }, "localname": "LesseeOperatingLeaseLiabilityUndiscountedExcessAmount", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/LeasesMaturityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseTermOfContract": { "auth_ref": [ "r598" ], "lang": { "en-us": { "role": { "documentation": "Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.", "label": "Lessee, Operating Lease, Term of Contract", "terseLabel": "Initial operating lease term" } } }, "localname": "LesseeOperatingLeaseTermOfContract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/LeasesNarrativeDetails" ], "xbrltype": "durationItemType" }, "us-gaap_LesseeOperatingLeasesTextBlock": { "auth_ref": [ "r609" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for operating leases of lessee. Includes, but is not limited to, description of operating lease and maturity analysis of operating lease liability.", "label": "Lessee, Operating Leases [Text Block]", "terseLabel": "Leases" } } }, "localname": "LesseeOperatingLeasesTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/Leases" ], "xbrltype": "textBlockItemType" }, "us-gaap_LetterOfCreditMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "A document typically issued by a financial institution which acts as a guarantee of payment to a beneficiary, or as the source of payment for a specific transaction (for example, wiring funds to a foreign exporter if and when specified merchandise is accepted pursuant to the terms of the letter of credit).", "label": "Letter of Credit [Member]", "terseLabel": "Letter of Credit" } } }, "localname": "LetterOfCreditMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BorrowingsNarrativeDetails" ], "xbrltype": "domainItemType" }, "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 outstanding" } } }, "localname": "LettersOfCreditOutstandingAmount", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BorrowingsNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_Liabilities": { "auth_ref": [ "r45", "r121", "r209", "r232", "r283", "r284", "r285", "r287", "r288", "r289", "r290", "r291", "r292", "r293", "r515", "r523", "r524", "r570", "r615", "r616" ], "calculation": { "http://ati.com/role/ConsolidatedBalanceSheets": { "order": 11.0, "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.", "label": "Liabilities", "terseLabel": "Total liabilities", "totalLabel": "Total liabilities" } } }, "localname": "Liabilities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails", "http://ati.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_LiabilitiesAndStockholdersEquity": { "auth_ref": [ "r34", "r121", "r232", "r570", "r617", "r655", "r673" ], "calculation": { "http://ati.com/role/ConsolidatedBalanceSheets": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any.", "label": "Liabilities and Equity", "totalLabel": "Total liabilities and stockholders' equity" } } }, "localname": "LiabilitiesAndStockholdersEquity", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_LiabilitiesAndStockholdersEquityAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Liabilities and Equity [Abstract]", "terseLabel": "Liabilities and Stockholders' Equity:" } } }, "localname": "LiabilitiesAndStockholdersEquityAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "stringItemType" }, "us-gaap_LiabilitiesCurrent": { "auth_ref": [ "r47", "r121", "r232", "r283", "r284", "r285", "r287", "r288", "r289", "r290", "r291", "r292", "r293", "r515", "r523", "r524", "r570", "r615", "r616", "r617" ], "calculation": { "http://ati.com/role/ConsolidatedBalanceSheets": { "order": 12.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer.", "label": "Liabilities, Current", "totalLabel": "Total current liabilities" } } }, "localname": "LiabilitiesCurrent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.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/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "stringItemType" }, "us-gaap_LineOfCredit": { "auth_ref": [ "r20", "r653", "r667" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a 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. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.", "label": "Long-term Line of Credit", "terseLabel": "Borrowings outstanding" } } }, "localname": "LineOfCredit", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BorrowingsNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity": { "auth_ref": [ "r43" ], "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": "Maximum borrowing capacity" } } }, "localname": "LineOfCreditFacilityMaximumBorrowingCapacity", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BorrowingsNarrativeDetails", "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.", "label": "Line of Credit Facility, Unused Capacity, Commitment Fee Percentage", "terseLabel": "Unused capacity fee (as a percent)" } } }, "localname": "LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BorrowingsNarrativeDetails" ], "xbrltype": "percentItemType" }, "us-gaap_LineOfCreditMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "A contractual arrangement with a lender under which borrowings can be made up to a specific amount at any point in time, and under which borrowings outstanding may be either short-term or long-term, depending upon the particulars.", "label": "Line of Credit [Member]", "terseLabel": "Line of Credit" } } }, "localname": "LineOfCreditMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BorrowingsNarrativeDetails", "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_LondonInterbankOfferedRateLIBORMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Interest rate at which a bank borrows funds from other banks in the London interbank market.", "label": "London Interbank Offered Rate (LIBOR) [Member]", "terseLabel": "London Interbank Offered Rate (LIBOR)" } } }, "localname": "LondonInterbankOfferedRateLIBORMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BorrowingsNarrativeDetails" ], "xbrltype": "domainItemType" }, "us-gaap_LongTermDebt": { "auth_ref": [ "r20", "r302", "r314", "r316", "r317", "r653", "r669" ], "calculation": { "http://ati.com/role/BorrowingsLongTermDebtDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.", "label": "Long-term Debt", "totalLabel": "Total debt, net" } } }, "localname": "LongTermDebt", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BorrowingsLongTermDebtDetails", "http://ati.com/role/BorrowingsMaturitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LongTermDebtCurrent": { "auth_ref": [ "r44" ], "calculation": { "http://ati.com/role/ConsolidatedBalanceSheets": { "order": 16.0, "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", "negatedLabel": "Less: current portion of long-term debt", "terseLabel": "Current portion of long-term debt" } } }, "localname": "LongTermDebtCurrent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BorrowingsLongTermDebtDetails", "http://ati.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths": { "auth_ref": [ "r127", "r280", "r306" ], "calculation": { "http://ati.com/role/BorrowingsMaturitiesDetails": { "order": 1.0, "parentTag": "us-gaap_DebtInstrumentCarryingAmount", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Long-Term Debt, Maturity, Year One", "terseLabel": "2022" } } }, "localname": "LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BorrowingsMaturitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo": { "auth_ref": [ "r127", "r280", "r306" ], "calculation": { "http://ati.com/role/BorrowingsMaturitiesDetails": { "order": 2.0, "parentTag": "us-gaap_DebtInstrumentCarryingAmount", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Long-Term Debt, Maturity, Year Two", "terseLabel": "2023" } } }, "localname": "LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BorrowingsMaturitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LongTermDebtNoncurrent": { "auth_ref": [ "r49" ], "calculation": { "http://ati.com/role/ConsolidatedBalanceSheets": { "order": 17.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.", "label": "Long-term Debt, Excluding Current Maturities", "terseLabel": "Long-term debt, net", "verboseLabel": "Long-term debt, net" } } }, "localname": "LongTermDebtNoncurrent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BorrowingsLongTermDebtDetails", "http://ati.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_LongTermDebtTextBlock": { "auth_ref": [ "r322" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for long-term debt.", "label": "Long-term Debt [Text Block]", "terseLabel": "Borrowings" } } }, "localname": "LongTermDebtTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/Borrowings" ], "xbrltype": "textBlockItemType" }, "us-gaap_LongtermDebtTypeAxis": { "auth_ref": [ "r49" ], "lang": { "en-us": { "role": { "documentation": "Information by type of long-term debt.", "label": "Long-term Debt, Type [Axis]", "terseLabel": "Long-term Debt, Type [Axis]" } } }, "localname": "LongtermDebtTypeAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BorrowingsNarrativeDetails", "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LongtermDebtTypeDomain": { "auth_ref": [ "r49", "r281" ], "lang": { "en-us": { "role": { "documentation": "Type of long-term debt arrangement, such as notes, line of credit, commercial paper, asset-based financing, project financing, letter of credit financing. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the company, if longer.", "label": "Long-term Debt, Type [Domain]", "terseLabel": "Long-term Debt, Type [Domain]" } } }, "localname": "LongtermDebtTypeDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BorrowingsNarrativeDetails", "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_MeasurementInputExpectedDividendRateMember": { "auth_ref": [ "r562" ], "lang": { "en-us": { "role": { "documentation": "Measurement input using expected dividend rate to be paid to holder of share per year.", "label": "Measurement Input, Expected Dividend Rate [Member]", "terseLabel": "Dividend yield" } } }, "localname": "MeasurementInputExpectedDividendRateMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/FairValueMeasurementsMeasurementInputsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_MeasurementInputExpectedTermMember": { "auth_ref": [ "r562" ], "lang": { "en-us": { "role": { "documentation": "Measurement input using period financial instrument is expected to be outstanding. Excludes maturity date.", "label": "Measurement Input, Expected Term [Member]", "terseLabel": "Expected term (years)" } } }, "localname": "MeasurementInputExpectedTermMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/FairValueMeasurementsMeasurementInputsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_MeasurementInputPriceVolatilityMember": { "auth_ref": [ "r562" ], "lang": { "en-us": { "role": { "documentation": "Measurement input using rate at which price of security will increase (decrease) for given set of returns.", "label": "Measurement Input, Price Volatility [Member]", "terseLabel": "Volatility" } } }, "localname": "MeasurementInputPriceVolatilityMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/FairValueMeasurementsMeasurementInputsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_MeasurementInputRiskFreeInterestRateMember": { "auth_ref": [ "r562" ], "lang": { "en-us": { "role": { "documentation": "Measurement input using interest rate on instrument with zero risk of financial loss.", "label": "Measurement Input, Risk Free Interest Rate [Member]", "terseLabel": "Risk-free interest rate" } } }, "localname": "MeasurementInputRiskFreeInterestRateMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/FairValueMeasurementsMeasurementInputsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_MeasurementInputSharePriceMember": { "auth_ref": [ "r562" ], "lang": { "en-us": { "role": { "documentation": "Measurement input using share price of saleable stock.", "label": "Measurement Input, Share Price [Member]", "terseLabel": "Share price" } } }, "localname": "MeasurementInputSharePriceMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/FairValueMeasurementsMeasurementInputsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_MeasurementInputTypeAxis": { "auth_ref": [ "r562" ], "lang": { "en-us": { "role": { "documentation": "Information by type of measurement input used to determine value of asset and liability.", "label": "Measurement Input Type [Axis]", "terseLabel": "Measurement Input Type [Axis]" } } }, "localname": "MeasurementInputTypeAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/FairValueMeasurementsMeasurementInputsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_MeasurementInputTypeDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Measurement input used to determine value of asset and liability.", "label": "Measurement Input Type [Domain]", "terseLabel": "Measurement Input Type [Domain]" } } }, "localname": "MeasurementInputTypeDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/FairValueMeasurementsMeasurementInputsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_MinorityInterest": { "auth_ref": [ "r57", "r121", "r232", "r283", "r287", "r288", "r289", "r292", "r293", "r570", "r654", "r672" ], "calculation": { "http://ati.com/role/ConsolidatedBalanceSheets": { "order": 32.0, "parentTag": "us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest", "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 is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest).", "label": "Stockholders' Equity Attributable to Noncontrolling Interest", "terseLabel": "Non-controlling interests" } } }, "localname": "MinorityInterest", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders": { "auth_ref": [ "r355" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Decrease in noncontrolling interest balance from payment of dividends or other distributions by the non-wholly owned subsidiary or partially owned entity, included in the consolidation of the parent entity, to the noncontrolling interest holders.", "label": "Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders", "negatedTerseLabel": "Distribution to non-controlling interest holder" } } }, "localname": "MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity" ], "xbrltype": "monetaryItemType" }, "us-gaap_MovementInValuationAllowancesAndReservesRollForward": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.", "label": "SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]" } } }, "localname": "MovementInValuationAllowancesAndReservesRollForward", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ScheduleIiValuationAndQualifyingAccountsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_NatureOfOperations": { "auth_ref": [ "r184", "r193" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for the nature of an entity's business, major products or services, principal markets including location, and the relative importance of its operations in each business and the basis for the determination, including but not limited to, assets, revenues, or earnings. For an entity that has not commenced principal operations, disclosures about the risks and uncertainties related to the activities in which the entity is currently engaged and an understanding of what those activities are being directed toward.", "label": "Nature of Operations [Text Block]", "terseLabel": "Overview of the Company" } } }, "localname": "NatureOfOperations", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/OverviewOfTheCompany" ], "xbrltype": "textBlockItemType" }, "us-gaap_NetCashProvidedByUsedInFinancingActivities": { "auth_ref": [ "r103" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 1.0, "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 used in financing activities" } } }, "localname": "NetCashProvidedByUsedInFinancingActivities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.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/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_NetCashProvidedByUsedInInvestingActivities": { "auth_ref": [ "r103" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 38.0, "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/2021-01-31", "presentation": [ "http://ati.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/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_NetCashProvidedByUsedInOperatingActivities": { "auth_ref": [ "r103", "r105", "r108" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 12.0, "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 (used in) provided by operating activities" } } }, "localname": "NetCashProvidedByUsedInOperatingActivities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.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/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_NetIncomeLoss": { "auth_ref": [ "r6", "r69", "r71", "r77", "r78", "r108", "r121", "r140", "r144", "r145", "r147", "r148", "r152", "r153", "r166", "r199", "r207", "r210", "r213", "r215", "r232", "r283", "r284", "r285", "r287", "r288", "r289", "r290", "r291", "r292", "r293", "r559", "r570", "r657", "r676" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfOperations": { "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 (loss) income", "totalLabel": "Net (loss) income attributable to ATI Physical Therapy, Inc.", "verboseLabel": "Net loss attributable to ATI Physical Theraphy, Inc." } } }, "localname": "NetIncomeLoss", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity", "http://ati.com/role/ConsolidatedStatementsOfOperations", "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedDetails", "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedStatementOfIncomeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetIncomeLossAttributableToNoncontrollingInterest": { "auth_ref": [ "r69", "r71", "r77", "r152", "r153", "r518", "r529" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfOperations": { "order": 18.0, "parentTag": "us-gaap_NetIncomeLoss", "weight": -1.0 }, "http://ati.com/role/LossEarningsPerShareLossEarningsPerShareCalculationDetails": { "order": 2.0, "parentTag": "us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of Net Income (Loss) attributable to noncontrolling interest.", "label": "Net Income (Loss) Attributable to Noncontrolling Interest", "terseLabel": "Net (loss) income attributable to non-controlling interest", "verboseLabel": "Net income attributable to non-controlling interest" } } }, "localname": "NetIncomeLossAttributableToNoncontrollingInterest", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity", "http://ati.com/role/ConsolidatedStatementsOfOperations", "http://ati.com/role/LossEarningsPerShareLossEarningsPerShareCalculationDetails", "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic": { "auth_ref": [ "r144", "r145", "r147", "r148", "r155", "r156", "r167", "r170", "r199", "r207", "r210", "r213", "r215" ], "calculation": { "http://ati.com/role/LossEarningsPerShareLossEarningsPerShareCalculationDetails": { "order": 1.0, "parentTag": "us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.", "label": "Net Income (Loss) Available to Common Stockholders, Basic", "totalLabel": "(Loss) income available to common stockholders, basic" } } }, "localname": "NetIncomeLossAvailableToCommonStockholdersBasic", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/LossEarningsPerShareLossEarningsPerShareCalculationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted": { "auth_ref": [ "r157", "r160", "r161", "r162", "r163", "r167", "r170" ], "calculation": { "http://ati.com/role/LossEarningsPerShareLossEarningsPerShareCalculationDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities, and addition from assumption of issuance of common shares for dilutive potential common shares; of income (loss) available to common shareholders.", "label": "Net Income (Loss) Available to Common Stockholders, Diluted", "totalLabel": "(Loss) income available to common stockholders, diluted" } } }, "localname": "NetIncomeLossAvailableToCommonStockholdersDiluted", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/LossEarningsPerShareLossEarningsPerShareCalculationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy pertaining to new accounting pronouncements that may impact the entity's financial reporting. Includes, but is not limited to, quantification of the expected or actual impact.", "label": "New Accounting Pronouncements, Policy [Policy Text Block]", "terseLabel": "Recently adopted accounting guidance and recent accounting pronouncements" } } }, "localname": "NewAccountingPronouncementsPolicyPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_NoncashInvestingAndFinancingItemsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Noncash Investing and Financing Items [Abstract]", "terseLabel": "Supplemental noncash disclosures:" } } }, "localname": "NoncashInvestingAndFinancingItemsAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_NoncompeteAgreementsMember": { "auth_ref": [ "r502" ], "lang": { "en-us": { "role": { "documentation": "Agreement in which one party agrees not to pursue a similar trade in competition with another party.", "label": "Noncompete Agreements [Member]", "terseLabel": "Non-compete agreements" } } }, "localname": "NoncompeteAgreementsMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesIntangibleAssetsDetails", "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssetsIntangibleAssetsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_NoncontrollingInterestMember": { "auth_ref": [ "r136", "r137", "r138", "r355", "r509" ], "lang": { "en-us": { "role": { "documentation": "This element represents that portion of equity (net assets) in a subsidiary not attributable, directly or indirectly, to the parent. A noncontrolling interest is sometimes called a minority interest.", "label": "Noncontrolling Interest [Member]", "terseLabel": "Non-Controlling Interest" } } }, "localname": "NoncontrollingInterestMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity" ], "xbrltype": "domainItemType" }, "us-gaap_NumberOfBusinessesAcquired": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The number of businesses acquired by the entity during the period.", "label": "Number of Businesses Acquired", "terseLabel": "Number of businesses acquired" } } }, "localname": "NumberOfBusinessesAcquired", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails" ], "xbrltype": "integerItemType" }, "us-gaap_NumberOfOperatingSegments": { "auth_ref": [ "r194" ], "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/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails" ], "xbrltype": "integerItemType" }, "us-gaap_NumberOfReportableSegments": { "auth_ref": [ "r194" ], "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/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails" ], "xbrltype": "integerItemType" }, "us-gaap_NumberOfReportingUnits": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Number of reporting units tested for impairment of goodwill. A reporting unit is an operating segment or one level below an operating segment.", "label": "Number of Reporting Units", "terseLabel": "Number of reporting units" } } }, "localname": "NumberOfReportingUnits", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssetsNarrativeDetails" ], "xbrltype": "integerItemType" }, "us-gaap_NumberOfStatesInWhichEntityOperates": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The number of states the entity operates in as of the balance sheet date.", "label": "Number of States in which Entity Operates", "terseLabel": "Number of states in which entity operates" } } }, "localname": "NumberOfStatesInWhichEntityOperates", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/OverviewOfTheCompanyNarrativeDetails" ], "xbrltype": "integerItemType" }, "us-gaap_NumberOfStores": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Represents the number of stores.", "label": "Number of Stores", "terseLabel": "Number of stores" } } }, "localname": "NumberOfStores", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/OverviewOfTheCompanyNarrativeDetails" ], "xbrltype": "integerItemType" }, "us-gaap_OperatingCostsAndExpenses": { "auth_ref": [], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfOperations": { "order": 5.0, "parentTag": "us-gaap_OperatingIncomeLoss", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Excludes Selling, General and Administrative Expense.", "label": "Operating Costs and Expenses", "terseLabel": "Total cost of services", "totalLabel": "Total cost of services" } } }, "localname": "OperatingCostsAndExpenses", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfOperations", "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingCostsAndExpensesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Operating Costs and Expenses [Abstract]", "terseLabel": "Cost of services:" } } }, "localname": "OperatingCostsAndExpensesAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfOperations" ], "xbrltype": "stringItemType" }, "us-gaap_OperatingIncomeLoss": { "auth_ref": [ "r199", "r207", "r210", "r213", "r215" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfOperations": { "order": 4.0, "parentTag": "us-gaap_IncomeLossIncludingPortionAttributableToNoncontrollingInterest", "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 (loss) income" } } }, "localname": "OperatingIncomeLoss", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfOperations", "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedDetails", "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedStatementOfIncomeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseCost": { "auth_ref": [ "r600", "r608" ], "calculation": { "http://ati.com/role/LeasesLeaseCostDetails": { "order": 1.0, "parentTag": "us-gaap_LeaseCost", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.", "label": "Operating Lease, Cost", "terseLabel": "Operating lease cost" } } }, "localname": "OperatingLeaseCost", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/LeasesLeaseCostDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseLiability": { "auth_ref": [ "r595" ], "calculation": { "http://ati.com/role/LeasesMaturityDetails": { "order": 2.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Present value of lessee's discounted obligation for lease payments from operating lease.", "label": "Operating Lease, Liability", "terseLabel": "Present value of future cash flows", "verboseLabel": "Operating lease liabilities" } } }, "localname": "OperatingLeaseLiability", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails", "http://ati.com/role/LeasesMaturityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseLiabilityAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Operating Lease, Liability [Abstract]", "terseLabel": "Presentation on Balance Sheet" } } }, "localname": "OperatingLeaseLiabilityAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/LeasesMaturityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_OperatingLeaseLiabilityCurrent": { "auth_ref": [ "r595" ], "calculation": { "http://ati.com/role/ConsolidatedBalanceSheets": { "order": 15.0, "parentTag": "us-gaap_LiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.", "label": "Operating Lease, Liability, Current", "terseLabel": "Current portion of operating lease liabilities", "verboseLabel": "Current" } } }, "localname": "OperatingLeaseLiabilityCurrent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedBalanceSheets", "http://ati.com/role/LeasesMaturityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseLiabilityNoncurrent": { "auth_ref": [ "r595" ], "calculation": { "http://ati.com/role/ConsolidatedBalanceSheets": { "order": 22.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.", "label": "Operating Lease, Liability, Noncurrent", "terseLabel": "Operating lease liabilities", "verboseLabel": "Non-current" } } }, "localname": "OperatingLeaseLiabilityNoncurrent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedBalanceSheets", "http://ati.com/role/LeasesMaturityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeasePayments": { "auth_ref": [ "r596", "r602" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.", "label": "Operating Lease, Payments", "terseLabel": "Operating cash flows from operating leases" } } }, "localname": "OperatingLeasePayments", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/LeasesSupplementalCashFlowDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseRightOfUseAsset": { "auth_ref": [ "r594" ], "calculation": { "http://ati.com/role/ConsolidatedBalanceSheets": { "order": 7.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of lessee's right to use underlying asset under operating lease.", "label": "Operating Lease, Right-of-Use Asset", "terseLabel": "Operating lease right-of-use assets" } } }, "localname": "OperatingLeaseRightOfUseAsset", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails", "http://ati.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseRightOfUseAssetAmortizationExpense": { "auth_ref": [ "r107" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 32.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of amortization expense for right-of-use asset from operating lease.", "label": "Operating Lease, Right-of-Use Asset, Amortization Expense", "terseLabel": "Amortization of right-of-use assets" } } }, "localname": "OperatingLeaseRightOfUseAssetAmortizationExpense", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent": { "auth_ref": [ "r605", "r608" ], "lang": { "en-us": { "role": { "documentation": "Weighted average discount rate for operating lease calculated at point in time.", "label": "Operating Lease, Weighted Average Discount Rate, Percent", "terseLabel": "Weighted-average discount rate: Operating leases" } } }, "localname": "OperatingLeaseWeightedAverageDiscountRatePercent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/LeasesOtherInformationDetails" ], "xbrltype": "percentItemType" }, "us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1": { "auth_ref": [ "r604", "r608" ], "lang": { "en-us": { "role": { "documentation": "Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.", "label": "Operating Lease, Weighted Average Remaining Lease Term", "terseLabel": "Weighted-average remaining lease term: Operating leases" } } }, "localname": "OperatingLeaseWeightedAverageRemainingLeaseTerm1", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/LeasesOtherInformationDetails" ], "xbrltype": "durationItemType" }, "us-gaap_OperatingLossCarryforwards": { "auth_ref": [ "r476" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.", "label": "Operating Loss Carryforwards", "terseLabel": "Operating loss carryforwards" } } }, "localname": "OperatingLossCarryforwards", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLossCarryforwardsLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Operating Loss Carryforwards [Line Items]", "terseLabel": "Operating Loss Carryforwards [Line Items]" } } }, "localname": "OperatingLossCarryforwardsLineItems", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_OperatingLossCarryforwardsTable": { "auth_ref": [ "r477" ], "lang": { "en-us": { "role": { "documentation": "Schedule reflecting pertinent information, such as tax authority, amounts, and expiration dates, of net operating loss carryforwards, including an assessment of the likelihood of utilization.", "label": "Operating Loss Carryforwards [Table]", "terseLabel": "Operating Loss Carryforwards [Table]" } } }, "localname": "OperatingLossCarryforwardsTable", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesNarrativeDetails" ], "xbrltype": "stringItemType" }, "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/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_OtherAssetsCurrent": { "auth_ref": [ "r58", "r617" ], "calculation": { "http://ati.com/role/ConsolidatedBalanceSheets": { "order": 5.0, "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/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherAssetsNoncurrent": { "auth_ref": [ "r41" ], "calculation": { "http://ati.com/role/ConsolidatedBalanceSheets": { "order": 10.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of noncurrent assets classified as other.", "label": "Other Assets, Noncurrent", "terseLabel": "Other non-current assets" } } }, "localname": "OtherAssetsNoncurrent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax": { "auth_ref": [ "r64", "r66" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss": { "order": 2.0, "parentTag": "us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount, after tax and reclassification, of gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.", "label": "Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax", "terseLabel": "Unrealized gain (loss) on interest rate swap", "verboseLabel": "Other comprehensive income (loss)" } } }, "localname": "OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity", "http://ati.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Other Comprehensive Income (Loss), Net of Tax [Abstract]", "terseLabel": "Other comprehensive income (loss):" } } }, "localname": "OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss" ], "xbrltype": "stringItemType" }, "us-gaap_OtherIntangibleAssetsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Intangible assets classified as other.", "label": "Other Intangible Assets [Member]", "terseLabel": "Other intangible assets" } } }, "localname": "OtherIntangibleAssetsMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesIntangibleAssetsDetails", "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssetsIntangibleAssetsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_OtherLiabilitiesDisclosureAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Other Liabilities Disclosure [Abstract]" } } }, "localname": "OtherLiabilitiesDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_OtherLiabilitiesNoncurrent": { "auth_ref": [ "r50" ], "calculation": { "http://ati.com/role/ConsolidatedBalanceSheets": { "order": 23.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer.", "label": "Other Liabilities, Noncurrent", "terseLabel": "Other non-current liabilities" } } }, "localname": "OtherLiabilitiesNoncurrent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedBalanceSheets", "http://ati.com/role/OverviewOfTheCompanyNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherNoncurrentLiabilitiesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Primary financial statement caption encompassing other noncurrent liabilities.", "label": "Other Noncurrent Liabilities [Member]", "terseLabel": "Other Noncurrent Liabilities" } } }, "localname": "OtherNoncurrentLiabilitiesMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/OverviewOfTheCompanyNarrativeDetails" ], "xbrltype": "domainItemType" }, "us-gaap_OtherNonoperatingIncomeExpense": { "auth_ref": [ "r89" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfOperations": { "order": 17.0, "parentTag": "us-gaap_IncomeLossIncludingPortionAttributableToNoncontrollingInterest", "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)", "negatedTerseLabel": "Other expense (income), net" } } }, "localname": "OtherNonoperatingIncomeExpense", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfOperations" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaidInKindInterest": { "auth_ref": [ "r107" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 29.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Interest paid other than in cash for example by issuing additional debt securities. As a noncash item, it is added to net income when calculating cash provided by or used in operations using the indirect method.", "label": "Paid-in-Kind Interest", "terseLabel": "Non-cash interest expense" } } }, "localname": "PaidInKindInterest", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic": { "auth_ref": [ "r165", "r167" ], "calculation": { "http://ati.com/role/LossEarningsPerShareLossEarningsPerShareCalculationDetails": { "order": 3.0, "parentTag": "us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of earnings (loss) distributed and earnings (loss) allocated to participating securities for the basic earnings (loss) per share or per unit calculation under the two-class method.", "label": "Participating Securities, Distributed and Undistributed Earnings (Loss), Basic", "terseLabel": "Less: Income allocated to participating securities" } } }, "localname": "ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/LossEarningsPerShareLossEarningsPerShareCalculationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PayablesAndAccrualsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Payables and Accruals [Abstract]" } } }, "localname": "PayablesAndAccrualsAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_PaymentsForRepurchaseOfEquity": { "auth_ref": [ "r97" ], "calculation": { "http://ati.com/role/BusinessCombinationsAndDivestitureFlowOfFundsDetails": { "order": 3.0, "parentTag": "atip_ProceedsFromReverseRecapitalization", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The cash outflow to reacquire common and preferred stock.", "label": "Payments for Repurchase of Equity", "negatedTerseLabel": "Cash used for redemptions of FAII Class A common stock" } } }, "localname": "PaymentsForRepurchaseOfEquity", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureFlowOfFundsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsOfDebtIssuanceCosts": { "auth_ref": [ "r99" ], "calculation": { "http://ati.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", "negatedTerseLabel": "Deferred financing costs" } } }, "localname": "PaymentsOfDebtIssuanceCosts", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock": { "auth_ref": [ "r97" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 7.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of cash outflow in the form of ordinary dividends to preferred shareholders of the parent entity.", "label": "Payments of Ordinary Dividends, Preferred Stock and Preference Stock", "negatedLabel": "Cash payment to Wilco Holdco Series A Preferred stockholders", "negatedTerseLabel": "Payments to Series A Preferred stockholders" } } }, "localname": "PaymentsOfDividendsPreferredStockAndPreferenceStock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureFlowOfFundsDetails", "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsOfStockIssuanceCosts": { "auth_ref": [ "r100" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 9.0, "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", "negatedTerseLabel": "Payments for equity issuance costs" } } }, "localname": "PaymentsOfStockIssuanceCosts", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation": { "auth_ref": [ "r97" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 10.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of cash outflow to satisfy grantee's tax withholding obligation for award under share-based payment arrangement.", "label": "Payment, Tax Withholding, Share-based Payment Arrangement", "negatedLabel": "Taxes paid on behalf of employees for shares withheld" } } }, "localname": "PaymentsRelatedToTaxWithholdingForShareBasedCompensation", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsToAcquireBusinessesGross": { "auth_ref": [ "r93", "r505" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.", "label": "Payments to Acquire Businesses, Gross", "terseLabel": "Cash consideration" } } }, "localname": "PaymentsToAcquireBusinessesGross", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired": { "auth_ref": [ "r93" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 43.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.", "label": "Payments to Acquire Businesses, Net of Cash Acquired", "negatedTerseLabel": "Business acquisitions, net of cash acquired" } } }, "localname": "PaymentsToAcquireBusinessesNetOfCashAcquired", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsToAcquireIntangibleAssets": { "auth_ref": [ "r94" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 40.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The cash outflow to acquire asset without physical form usually arising from contractual or other legal rights, excluding goodwill.", "label": "Payments to Acquire Intangible Assets", "negatedTerseLabel": "Purchases of intangible assets" } } }, "localname": "PaymentsToAcquireIntangibleAssets", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsToAcquirePropertyPlantAndEquipment": { "auth_ref": [ "r94" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 39.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.", "label": "Payments to Acquire Property, Plant, and Equipment", "negatedTerseLabel": "Purchases of property and equipment" } } }, "localname": "PaymentsToAcquirePropertyPlantAndEquipment", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsToMinorityShareholders": { "auth_ref": [ "r100" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 11.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of cash outflow to a noncontrolling interest. Includes, but not limited to, reduction of noncontrolling interest ownership. Excludes dividends paid to the noncontrolling interest.", "label": "Payments to Noncontrolling Interests", "negatedTerseLabel": "Distribution to non-controlling interest holder" } } }, "localname": "PaymentsToMinorityShareholders", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_PerformanceSharesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Share-based payment arrangement awarded for meeting performance target.", "label": "Performance Shares [Member]", "terseLabel": "Performance Shares" } } }, "localname": "PerformanceSharesMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationNarrativeDetails" ], "xbrltype": "domainItemType" }, "us-gaap_PlanNameAxis": { "auth_ref": [ "r407", "r438" ], "lang": { "en-us": { "role": { "documentation": "Information by plan name for share-based payment arrangement.", "label": "Plan Name [Axis]", "terseLabel": "Plan Name [Axis]" } } }, "localname": "PlanNameAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/BusinessCombinationsAndDivestitureSummaryOfSharesIssuedAndOutstandingDetails", "http://ati.com/role/LossEarningsPerShareAntidilutiveSecuritiesDetails", "http://ati.com/role/ShareBasedCompensationNarrativeDetails", "http://ati.com/role/ShareBasedCompensationScheduleOfShareBasedPaymentArrangementOptionActivityDetails", "http://ati.com/role/ShareBasedCompensationValuationAssumptionDetails", "http://ati.com/role/StockholdersEquityNarrativeDetails", "http://ati.com/role/StockholdersEquityReservedSharesDetails", "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_PlanNameDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Plan name for share-based payment arrangement.", "label": "Plan Name [Domain]", "terseLabel": "Plan Name [Domain]" } } }, "localname": "PlanNameDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/BusinessCombinationsAndDivestitureSummaryOfSharesIssuedAndOutstandingDetails", "http://ati.com/role/LossEarningsPerShareAntidilutiveSecuritiesDetails", "http://ati.com/role/ShareBasedCompensationNarrativeDetails", "http://ati.com/role/ShareBasedCompensationScheduleOfShareBasedPaymentArrangementOptionActivityDetails", "http://ati.com/role/ShareBasedCompensationValuationAssumptionDetails", "http://ati.com/role/StockholdersEquityNarrativeDetails", "http://ati.com/role/StockholdersEquityReservedSharesDetails", "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_PreferredClassAMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Outstanding nonredeemable preferred class A stock or outstanding convertible preferred class A stock. Classified within stockholders' equity if nonredeemable or redeemable solely at the option of the issuer. Classified within temporary equity if redemption is outside the control of the issuer.", "label": "Preferred Class A [Member]", "terseLabel": "Series A Preferred" } } }, "localname": "PreferredClassAMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_PreferredStockAmountOfPreferredDividendsInArrears": { "auth_ref": [ "r349" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Aggregate amount of cumulative preferred dividends in arrears.", "label": "Preferred Stock, Amount of Preferred Dividends in Arrears", "terseLabel": "Cumulative preferred dividends" } } }, "localname": "PreferredStockAmountOfPreferredDividendsInArrears", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/RedeemablePreferredStockDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PreferredStockDividendRatePercentage": { "auth_ref": [ "r330" ], "lang": { "en-us": { "role": { "documentation": "The percentage rate used to calculate dividend payments on preferred stock.", "label": "Preferred Stock, Dividend Rate, Percentage", "terseLabel": "Annual dividend rate" } } }, "localname": "PreferredStockDividendRatePercentage", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/RedeemablePreferredStockDetails", "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "percentItemType" }, "us-gaap_PreferredStockParOrStatedValuePerShare": { "auth_ref": [ "r26", "r329" ], "lang": { "en-us": { "role": { "documentation": "Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.", "label": "Preferred Stock, Par or Stated Value Per Share", "terseLabel": "Preferred stock, par value (in dollars per share)" } } }, "localname": "PreferredStockParOrStatedValuePerShare", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedBalanceSheetsParenthetical", "http://ati.com/role/StockholdersEquityNarrativeDetails", "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_PreferredStockSharesAuthorized": { "auth_ref": [ "r26" ], "lang": { "en-us": { "role": { "documentation": "The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.", "label": "Preferred Stock, Shares Authorized", "terseLabel": "Preferred stock, shares authorized (in shares)" } } }, "localname": "PreferredStockSharesAuthorized", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedBalanceSheetsParenthetical", "http://ati.com/role/StockholdersEquityNarrativeDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_PreferredStockSharesIssued": { "auth_ref": [ "r26", "r329" ], "lang": { "en-us": { "role": { "documentation": "Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.", "label": "Preferred Stock, Shares Issued", "terseLabel": "Preferred stock, shares issued (in shares)" } } }, "localname": "PreferredStockSharesIssued", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedBalanceSheetsParenthetical", "http://ati.com/role/StockholdersEquityNarrativeDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_PreferredStockSharesOutstanding": { "auth_ref": [ "r26" ], "lang": { "en-us": { "role": { "documentation": "Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.", "label": "Preferred Stock, Shares Outstanding", "terseLabel": "Preferred stock, shares outstanding (in shares)" } } }, "localname": "PreferredStockSharesOutstanding", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedBalanceSheetsParenthetical", "http://ati.com/role/StockholdersEquityNarrativeDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_PreferredStockTextBlock": { "auth_ref": [ "r359" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for terms, amounts, nature of changes, rights and privileges, dividends, and other matters related to preferred stock.", "label": "Preferred Stock [Text Block]", "terseLabel": "Redeemable Preferred Stock" } } }, "localname": "PreferredStockTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/RedeemablePreferredStock" ], "xbrltype": "textBlockItemType" }, "us-gaap_PreferredStockValue": { "auth_ref": [ "r26", "r617" ], "calculation": { "http://ati.com/role/ConsolidatedBalanceSheets": { "order": 26.0, "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Aggregate par or stated value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity.", "label": "Preferred Stock, Value, Issued", "terseLabel": "Preferred stock, $0.0001 par value; 1.0 million shares authorized; none issued and outstanding at December\u00a031, 2021 and December\u00a031, 2020" } } }, "localname": "PreferredStockValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_PrepaidExpenseCurrent": { "auth_ref": [ "r9", "r11", "r241", "r242" ], "calculation": { "http://ati.com/role/ConsolidatedBalanceSheets": { "order": 4.0, "parentTag": "us-gaap_AssetsCurrent", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of asset related to consideration paid in advance for costs that provide economic benefits within a future period of one year or the normal operating cycle, if longer.", "label": "Prepaid Expense, Current", "terseLabel": "Prepaid Expense, Current" } } }, "localname": "PrepaidExpenseCurrent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromDivestitureOfBusinesses": { "auth_ref": [ "r91" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 42.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.", "label": "Proceeds from Divestiture of Businesses", "terseLabel": "Proceeds from sale of business" } } }, "localname": "ProceedsFromDivestitureOfBusinesses", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock": { "auth_ref": [ "r95" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Proceeds from issuance of capital stock which provides for a specific dividend that is paid to the shareholders before any dividends to common stockholders and which takes precedence over common stockholders in the event of liquidation.", "label": "Proceeds from Issuance of Preferred Stock and Preference Stock", "terseLabel": "Proceeds from issuance of preferred stock" } } }, "localname": "ProceedsFromIssuanceOfPreferredStockAndPreferenceStock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/RedeemablePreferredStockDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromIssuanceOfPrivatePlacement": { "auth_ref": [ "r95" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 8.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The cash inflow associated with the amount received from entity's raising of capital via private rather than public placement.", "label": "Proceeds from Issuance of Private Placement", "terseLabel": "Proceeds from shares issued through PIPE investment", "verboseLabel": "Cash proceeds from PIPE investment" } } }, "localname": "ProceedsFromIssuanceOfPrivatePlacement", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureFlowOfFundsDetails", "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromLinesOfCredit": { "auth_ref": [ "r96", "r120" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 4.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.", "label": "Proceeds from Lines of Credit", "terseLabel": "Proceeds from revolving line of credit" } } }, "localname": "ProceedsFromLinesOfCredit", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BorrowingsNarrativeDetails", "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment": { "auth_ref": [ "r92" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 41.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.", "label": "Proceeds from Sale of Property, Plant, and Equipment", "terseLabel": "Proceeds from sale of property and equipment" } } }, "localname": "ProceedsFromSaleOfPropertyPlantAndEquipment", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProductAndServiceOtherMember": { "auth_ref": [ "r379" ], "lang": { "en-us": { "role": { "documentation": "Article or substance produced by nature, labor or machinery and act of providing assistance, classified as other.", "label": "Product and Service, Other [Member]", "terseLabel": "Other revenue" } } }, "localname": "ProductAndServiceOtherMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfOperations" ], "xbrltype": "domainItemType" }, "us-gaap_ProfitLoss": { "auth_ref": [ "r6", "r69", "r71", "r77", "r102", "r121", "r140", "r152", "r153", "r199", "r207", "r210", "r213", "r215", "r232", "r283", "r284", "r285", "r287", "r288", "r289", "r290", "r291", "r292", "r293", "r511", "r517", "r519", "r529", "r530", "r559", "r570", "r662" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 37.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 }, "http://ati.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss": { "order": 3.0, "parentTag": "us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest", "weight": 1.0 }, "http://ati.com/role/ConsolidatedStatementsOfOperations": { "order": 1.0, "parentTag": "us-gaap_NetIncomeLoss", "weight": 1.0 }, "http://ati.com/role/LossEarningsPerShareLossEarningsPerShareCalculationDetails": { "order": 4.0, "parentTag": "us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.", "label": "Net Income (Loss), Including Portion Attributable to Noncontrolling Interest", "terseLabel": "Net (loss) income", "totalLabel": "Net (loss) income" } } }, "localname": "ProfitLoss", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows", "http://ati.com/role/ConsolidatedStatementsOfComprehensiveIncomeLoss", "http://ati.com/role/ConsolidatedStatementsOfOperations", "http://ati.com/role/LossEarningsPerShareLossEarningsPerShareCalculationDetails", "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedDetails", "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedNarrativeDetails", "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedStatementOfIncomeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PropertyPlantAndEquipmentAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Property, Plant and Equipment [Abstract]" } } }, "localname": "PropertyPlantAndEquipmentAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_PropertyPlantAndEquipmentByTypeAxis": { "auth_ref": [ "r40", "r269" ], "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": "Long-Lived Tangible Asset [Axis]" } } }, "localname": "PropertyPlantAndEquipmentByTypeAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPropertyAndEquipmentDetails", "http://ati.com/role/PropertyAndEquipmentCarryingAmountDetails", "http://ati.com/role/PropertyAndEquipmentNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock": { "auth_ref": [ "r273", "r701", "r702", "r703" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections.", "label": "Property, Plant and Equipment Disclosure [Text Block]", "terseLabel": "Property and Equipment" } } }, "localname": "PropertyPlantAndEquipmentDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/PropertyAndEquipment" ], "xbrltype": "textBlockItemType" }, "us-gaap_PropertyPlantAndEquipmentGross": { "auth_ref": [ "r39", "r267" ], "calculation": { "http://ati.com/role/PropertyAndEquipmentCarryingAmountDetails": { "order": 1.0, "parentTag": "us-gaap_PropertyPlantAndEquipmentNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.", "label": "Property, Plant and Equipment, Gross", "terseLabel": "Property and equipment, gross" } } }, "localname": "PropertyPlantAndEquipmentGross", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/PropertyAndEquipmentCarryingAmountDetails" ], "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/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesAdvertisingCostsDetails", "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPropertyAndEquipmentDetails", "http://ati.com/role/PropertyAndEquipmentCarryingAmountDetails", "http://ati.com/role/PropertyAndEquipmentDepreciationExpenseDetails", "http://ati.com/role/PropertyAndEquipmentNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_PropertyPlantAndEquipmentNet": { "auth_ref": [ "r16", "r17", "r269", "r617", "r663", "r674" ], "calculation": { "http://ati.com/role/ConsolidatedBalanceSheets": { "order": 6.0, "parentTag": "us-gaap_Assets", "weight": 1.0 }, "http://ati.com/role/PropertyAndEquipmentCarryingAmountDetails": { "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 and equipment, net", "totalLabel": "Property and equipment, net" } } }, "localname": "PropertyPlantAndEquipmentNet", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedBalanceSheets", "http://ati.com/role/PropertyAndEquipmentCarryingAmountDetails", "http://ati.com/role/PropertyAndEquipmentNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PropertyPlantAndEquipmentPolicyTextBlock": { "auth_ref": [ "r38", "r269", "r701", "r702" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections.", "label": "Property, Plant and Equipment, Policy [Policy Text Block]", "terseLabel": "Property and equipment" } } }, "localname": "PropertyPlantAndEquipmentPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_PropertyPlantAndEquipmentTextBlock": { "auth_ref": [ "r16", "r269" ], "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 and Equipment and Depreciation Expense" } } }, "localname": "PropertyPlantAndEquipmentTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/PropertyAndEquipmentTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_PropertyPlantAndEquipmentTypeDomain": { "auth_ref": [ "r16", "r267" ], "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": "Long-Lived Tangible Asset [Domain]" } } }, "localname": "PropertyPlantAndEquipmentTypeDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPropertyAndEquipmentDetails", "http://ati.com/role/PropertyAndEquipmentCarryingAmountDetails", "http://ati.com/role/PropertyAndEquipmentNarrativeDetails" ], "xbrltype": "domainItemType" }, "us-gaap_PropertyPlantAndEquipmentUsefulLife": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.", "label": "Property, Plant and Equipment, Useful Life", "terseLabel": ",Useful life" } } }, "localname": "PropertyPlantAndEquipmentUsefulLife", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPropertyAndEquipmentDetails" ], "xbrltype": "durationItemType" }, "us-gaap_ProvisionForDoubtfulAccounts": { "auth_ref": [ "r83", "r240" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 34.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 }, "http://ati.com/role/ConsolidatedStatementsOfOperations": { "order": 8.0, "parentTag": "us-gaap_OperatingCostsAndExpenses", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of expense (reversal of expense) for expected credit loss on accounts receivable.", "label": "Accounts Receivable, Credit Loss Expense (Reversal)", "terseLabel": "Provision for doubtful accounts" } } }, "localname": "ProvisionForDoubtfulAccounts", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows", "http://ati.com/role/ConsolidatedStatementsOfOperations" ], "xbrltype": "monetaryItemType" }, "us-gaap_QuarterlyFinancialInformationDisclosureAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Quarterly Financial Information Disclosure [Abstract]" } } }, "localname": "QuarterlyFinancialInformationDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_QuarterlyFinancialInformationTextBlock": { "auth_ref": [ "r178", "r179" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information.", "label": "Quarterly Financial Information [Text Block]", "terseLabel": "Selected Quarterly Financial Data (Unaudited)" } } }, "localname": "QuarterlyFinancialInformationTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/SelectedQuarterlyFinancialDataUnaudited" ], "xbrltype": "textBlockItemType" }, "us-gaap_ReceivablesTradeAndOtherAccountsReceivableAllowanceForDoubtfulAccountsPolicy": { "auth_ref": [ "r36", "r227" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for determining the allowance for doubtful accounts for trade and other accounts receivable balances, and when impairments, charge-offs or recoveries are recognized.", "label": "Receivables, Trade and Other Accounts Receivable, Allowance for Doubtful Accounts, Policy [Policy Text Block]", "terseLabel": "Allowance for doubtful accounts" } } }, "localname": "ReceivablesTradeAndOtherAccountsReceivableAllowanceForDoubtfulAccountsPolicy", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.", "label": "Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]", "terseLabel": "Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]" } } }, "localname": "ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesUnrecognizedTaxBenefitsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_RelatedPartyDomain": { "auth_ref": [ "r396", "r611", "r612" ], "lang": { "en-us": { "role": { "documentation": "Related parties include affiliates; other entities for which investments are accounted for by the equity method by the entity; trusts for benefit of employees; and principal owners, management, and members of immediate families. It also may include other parties with which the entity may control or can significantly influence the management or operating policies of the other to an extent that one of the transacting parties might be prevented from fully pursuing its own separate interests.", "label": "Related Party [Domain]", "terseLabel": "Related Party [Domain]" } } }, "localname": "RelatedPartyDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails" ], "xbrltype": "domainItemType" }, "us-gaap_RelatedPartyTransactionsByRelatedPartyAxis": { "auth_ref": [ "r396", "r611", "r613", "r637", "r638", "r639", "r640", "r641", "r642", "r643", "r644", "r645", "r646", "r647", "r648" ], "lang": { "en-us": { "role": { "documentation": "Information by type of related party. Related parties include, but not limited to, affiliates; other entities for which investments are accounted for by the equity method by the entity; trusts for benefit of employees; and principal owners, management, and members of immediate families. It also may include other parties with which the entity may control or can significantly influence the management or operating policies of the other to an extent that one of the transacting parties might be prevented from fully pursuing its own separate interests.", "label": "Related Party [Axis]", "terseLabel": "Related Party [Axis]" } } }, "localname": "RelatedPartyTransactionsByRelatedPartyAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_RepaymentsOfAssumedDebt": { "auth_ref": [ "r98" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The cash outflow from the repayments of a long-term debt originally issued by another party but is assumed by the entity.", "label": "Repayments of Assumed Debt", "negatedLabel": "Repayments of debt" } } }, "localname": "RepaymentsOfAssumedDebt", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureFlowOfFundsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_RepaymentsOfLinesOfCredit": { "auth_ref": [ "r98", "r120" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 5.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.", "label": "Repayments of Lines of Credit", "negatedTerseLabel": "Payments on revolving line of credit" } } }, "localname": "RepaymentsOfLinesOfCredit", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_RepaymentsOfLongTermDebt": { "auth_ref": [ "r98" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 3.0, "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", "negatedTerseLabel": "Principal payments on long-term debt", "terseLabel": "Principal payments on long-term debt" } } }, "localname": "RepaymentsOfLongTermDebt", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BorrowingsNarrativeDetails", "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_RestrictedStockMember": { "auth_ref": [ "r171" ], "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": "RSAs", "verboseLabel": "RSAs" } } }, "localname": "RestrictedStockMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/LossEarningsPerShareAntidilutiveSecuritiesDetails", "http://ati.com/role/ShareBasedCompensationActivityOfUnvestedRsasAndTheRespectiveWeightedAverageFairValueDetails", "http://ati.com/role/ShareBasedCompensationNarrativeDetails", "http://ati.com/role/StockholdersEquityReservedSharesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_RestrictedStockUnitsRSUMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Share instrument which is convertible to stock or an equivalent amount of cash, after a specified period of time or when specified performance conditions are met.", "label": "Restricted Stock Units (RSUs) [Member]", "terseLabel": "RSUs" } } }, "localname": "RestrictedStockUnitsRSUMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/LossEarningsPerShareAntidilutiveSecuritiesDetails", "http://ati.com/role/ShareBasedCompensationActivityOfUnvestedRsusAndTheRespectiveWeightedAverageFairValueDetails", "http://ati.com/role/ShareBasedCompensationNarrativeDetails", "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_RetainedEarningsAccumulatedDeficit": { "auth_ref": [ "r30", "r355", "r446", "r617", "r671", "r692", "r697" ], "calculation": { "http://ati.com/role/ConsolidatedBalanceSheets": { "order": 31.0, "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": "Accumulated deficit" } } }, "localname": "RetainedEarningsAccumulatedDeficit", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails", "http://ati.com/role/ConsolidatedBalanceSheets", "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_RetainedEarningsMember": { "auth_ref": [ "r2", "r136", "r137", "r138", "r141", "r150", "r153", "r236", "r443", "r444", "r445", "r486", "r487", "r557", "r688", "r690" ], "lang": { "en-us": { "role": { "documentation": "The cumulative amount of the reporting entity's undistributed earnings or deficit.", "label": "Retained Earnings [Member]", "terseLabel": "Accumulated Deficit" } } }, "localname": "RetainedEarningsMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity" ], "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/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax": { "auth_ref": [ "r195", "r196", "r206", "r211", "r212", "r216", "r217", "r218", "r376", "r377", "r631" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfOperations": { "order": 11.0, "parentTag": "us-gaap_OperatingIncomeLoss", "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", "terseLabel": "Net operating revenue" } } }, "localname": "RevenueFromContractWithCustomerExcludingAssessedTax", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfOperations", "http://ati.com/role/RevenueFromContractsWithCustomersDetails", "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_RevenueFromContractWithCustomerPolicyTextBlock": { "auth_ref": [ "r117", "r368", "r369", "r370", "r371", "r372", "r373", "r374", "r375", "r386" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for revenue from contract with customer.", "label": "Revenue from Contract with Customer [Policy Text Block]", "terseLabel": "Net patient and other revenue" } } }, "localname": "RevenueFromContractWithCustomerPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_RevenueFromContractWithCustomerTextBlock": { "auth_ref": [ "r360", "r361", "r362", "r363", "r364", "r365", "r366", "r367", "r378", "r386" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.", "label": "Revenue from Contract with Customer [Text Block]", "terseLabel": "Revenue from Contracts with Customers" } } }, "localname": "RevenueFromContractWithCustomerTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/RevenueFromContractsWithCustomers" ], "xbrltype": "textBlockItemType" }, "us-gaap_RevolvingCreditFacilityMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Arrangement in which loan proceeds can continuously be obtained following repayments, but the total amount borrowed cannot exceed a specified maximum amount.", "label": "Revolving Credit Facility [Member]", "terseLabel": "Revolving Credit Facility" } } }, "localname": "RevolvingCreditFacilityMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BorrowingsNarrativeDetails", "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability": { "auth_ref": [ "r603", "r608" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of increase in right-of-use asset obtained in exchange for operating lease liability.", "label": "Right-of-Use Asset Obtained in Exchange for Operating Lease Liability", "terseLabel": "Right-of-use assets obtained in exchange for new operating lease liabilities" } } }, "localname": "RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/LeasesSupplementalCashFlowDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_SaleOfStockConsiderationReceivedOnTransaction": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Cash received on stock transaction after deduction of issuance costs.", "label": "Sale of Stock, Consideration Received on Transaction", "terseLabel": "Aggregate purchase price" } } }, "localname": "SaleOfStockConsiderationReceivedOnTransaction", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "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 as consideration" } } }, "localname": "SaleOfStockNumberOfSharesIssuedInTransaction", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_SaleOfStockPricePerShare": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.", "label": "Sale of Stock, Price Per Share", "terseLabel": "Price per share (in dollars per share)" } } }, "localname": "SaleOfStockPricePerShare", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ScheduleOfAccruedLiabilitiesTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of the components of accrued liabilities.", "label": "Schedule of Accrued Liabilities [Table Text Block]", "terseLabel": "Summary of Accrued Expenses and Other Liabilities" } } }, "localname": "ScheduleOfAccruedLiabilitiesTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/AccruedExpensesAndOtherLiabilitiesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable": { "auth_ref": [ "r171" ], "lang": { "en-us": { "role": { "documentation": "Schedule for securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by Antidilutive Securities.", "label": "Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]", "terseLabel": "Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]" } } }, "localname": "ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/LossEarningsPerShareAntidilutiveSecuritiesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock": { "auth_ref": [ "r171" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities.", "label": "Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]", "terseLabel": "Schedule of Antidilutive Securities Excluded From Computation of Diluted Shares Outstanding" } } }, "localname": "ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/LossEarningsPerShareTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfCapitalUnitsTextBlock": { "auth_ref": [ "r698" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of an entity's capital units or capital shares, including the value of capital units or capital shares, units authorized, units outstanding and other information necessary to a fair presentation.", "label": "Schedule of Capital Units [Table Text Block]", "terseLabel": "Schedule of Shares of Class A Common Stock Reserved for Potential Future Issuance" } } }, "localname": "ScheduleOfCapitalUnitsTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/StockholdersEquityTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock": { "auth_ref": [ "r482" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years.", "label": "Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]", "terseLabel": "Schedule of Components of Income Tax Expense (Benefit)" } } }, "localname": "ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfDebtInstrumentsTextBlock": { "auth_ref": [ "r49", "r127", "r316", "r318", "r347", "r352", "r353", "r354", "r587", "r588", "r591", "r664" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.", "label": "Schedule of Long-term Debt Instruments [Table Text Block]", "terseLabel": "Summary of Long-Term Debt" } } }, "localname": "ScheduleOfDebtInstrumentsTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BorrowingsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock": { "auth_ref": [ "r473" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.", "label": "Schedule of Deferred Tax Assets and Liabilities [Table Text Block]", "terseLabel": "Schedule of Deferred Tax Assets and Liabilities" } } }, "localname": "ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfDerivativeLiabilitiesAtFairValueTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of derivative liabilities at fair value.", "label": "Schedule of Derivative Liabilities at Fair Value [Table Text Block]", "terseLabel": "Schedule of Changes in Fair Value of Level 3 Instruments" } } }, "localname": "ScheduleOfDerivativeLiabilitiesAtFairValueTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/FairValueMeasurementsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock": { "auth_ref": [ "r170" ], "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 Calculation of Both Basic and Diluted Earnings (Loss) Per Share" } } }, "localname": "ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/LossEarningsPerShareTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock": { "auth_ref": [ "r461" ], "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/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable": { "auth_ref": [ "r144", "r145", "r146", "r149", "r150", "r152", "r153", "r174" ], "lang": { "en-us": { "role": { "documentation": "Schedule of prior period adjustments to correct an error in previously issued financial statements. The disclosure may include, but is not limited to: (1) the effect of the correction on each financial statement line item and any per-share amounts affected for each prior period presented (2) the cumulative effect of the change on retained earnings or other appropriate components of equity or net assets in the statement of financial position, as of the beginning of the earliest period presented, and (3) the effect of the prior period adjustment (both gross and net of applicable income tax) on the net income of each prior period presented in the entity's annual report for the year in which the adjustments are made. This table can be used to disclose the amounts as previously reported and the effect of the correction or other adjustment on per line item or per share amount basis. This table uses as its line items financial statement line items that are affected by prior period adjustments.", "label": "Schedule of Error Corrections and Prior Period Adjustment Restatement [Table]", "terseLabel": "Schedule of Error Corrections and Prior Period Adjustment Restatement [Table]" } } }, "localname": "ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails", "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedNarrativeDetails", "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedStatementOfIncomeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentsTextBlock": { "auth_ref": [ "r151", "r152", "r153" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of prior period adjustments to previously issued financial statements including (1) the effect of the correction on each financial statement line item and any per-share amounts affected for each prior period presented (2) the cumulative effect of the change on retained earnings or other appropriate components of equity or net assets in the statement of financial position, as of the beginning of the earliest period presented, and (3) the effect of the prior period adjustments (both gross and net of applicable income tax) on the net income of each prior period presented in the entity's annual report for the year in which the adjustments are made.", "label": "Schedule of Error Corrections and Prior Period Adjustments [Table Text Block]", "terseLabel": "Schedule of Error Corrections and Prior Period Adjustments" } } }, "localname": "ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentsTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable": { "auth_ref": [ "r252", "r257", "r632" ], "lang": { "en-us": { "role": { "documentation": "Schedule of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.", "label": "Schedule of Finite-Lived Intangible Assets [Table]", "terseLabel": "Schedule of Finite-Lived Intangible Assets [Table]" } } }, "localname": "ScheduleOfFiniteLivedIntangibleAssetsTable", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesIntangibleAssetsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock": { "auth_ref": [ "r252", "r257" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment.", "label": "Schedule of Finite-Lived Intangible Assets [Table Text Block]", "terseLabel": "Schedule of Carrying Amounts of Finite-Lived Intangible Assets" } } }, "localname": "ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfGoodwillTextBlock": { "auth_ref": [ "r248", "r250" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule.", "label": "Schedule of Goodwill [Table Text Block]", "terseLabel": "Schedule of Changes in The Carrying Amount of Goodwill" } } }, "localname": "ScheduleOfGoodwillTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssetsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTable": { "auth_ref": [ "r259", "r262" ], "lang": { "en-us": { "role": { "documentation": "Schedule of assets, excluding financial assets and goodwill, lacking physical substance and exist in perpetuity.", "label": "Schedule of Indefinite-Lived Intangible Assets [Table]", "terseLabel": "Schedule of Indefinite-Lived Intangible Assets [Table]" } } }, "localname": "ScheduleOfIndefiniteLivedIntangibleAssetsTable", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssetsIntangibleAssetsDetails", "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssetsNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTableTextBlock": { "auth_ref": [ "r259", "r262" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance and exist in perpetuity, by either major class or business segment.", "label": "Schedule of Indefinite-Lived Intangible Assets [Table Text Block]", "terseLabel": "Schedule of Carrying Amounts of Indefinite-Lived Intangible Assets" } } }, "localname": "ScheduleOfIndefiniteLivedIntangibleAssetsTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssetsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock": { "auth_ref": [ "r280" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of maturity and sinking fund requirement for long-term debt.", "label": "Schedule of Maturities of Long-term Debt [Table Text Block]", "terseLabel": "Aggregate Maturities of Long-Term Debt" } } }, "localname": "ScheduleOfMaturitiesOfLongTermDebtTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BorrowingsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfPropertyPlantAndEquipmentTable": { "auth_ref": [ "r40", "r269" ], "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/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesAdvertisingCostsDetails", "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPropertyAndEquipmentDetails", "http://ati.com/role/PropertyAndEquipmentCarryingAmountDetails", "http://ati.com/role/PropertyAndEquipmentDepreciationExpenseDetails", "http://ati.com/role/PropertyAndEquipmentNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock": { "auth_ref": [ "r177" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data.", "label": "Quarterly Financial Information [Table Text Block]", "terseLabel": "Schedule of Quarterly Financial Information" } } }, "localname": "ScheduleOfQuarterlyFinancialInformationTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable": { "auth_ref": [ "r407", "r438" ], "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/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationActivityOfUnvestedRsasAndTheRespectiveWeightedAverageFairValueDetails", "http://ati.com/role/ShareBasedCompensationActivityOfUnvestedRsusAndTheRespectiveWeightedAverageFairValueDetails", "http://ati.com/role/ShareBasedCompensationNarrativeDetails", "http://ati.com/role/ShareBasedCompensationScheduleOfShareBasedPaymentArrangementOptionActivityDetails", "http://ati.com/role/ShareBasedCompensationValuationAssumptionDetails", "http://ati.com/role/StockholdersEquityReservedSharesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock": { "auth_ref": [ "r413", "r424", "r427" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.", "label": "Share-based Payment Arrangement, Option, Activity [Table Text Block]", "terseLabel": "Schedule of Share-based Payment Arrangement, Option, Activity" } } }, "localname": "ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock": { "auth_ref": [ "r430" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.", "label": "Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]", "terseLabel": "Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions" } } }, "localname": "ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfStockByClassTable": { "auth_ref": [ "r52", "r118", "r181", "r182", "r325", "r327", "r328", "r329", "r330", "r331", "r332", "r334", "r338", "r344", "r347", "r348", "r350", "r352", "r353", "r354", "r355" ], "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/2021-01-31", "presentation": [ "http://ati.com/role/RedeemablePreferredStockDetails", "http://ati.com/role/StockholdersEquityNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfUnrecognizedTaxBenefitsRollForwardTableTextBlock": { "auth_ref": [ "r467", "r483" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of the change in unrecognized tax benefits.", "label": "Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]", "terseLabel": "Schedule of Unrecognized Tax Benefits Roll Forward" } } }, "localname": "ScheduleOfUnrecognizedTaxBenefitsRollForwardTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfUnvestedRestrictedStockUnitsRollForwardTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of the change in restricted stock units (RSUs).", "label": "Schedule of Unvested Restricted Stock Units Roll Forward [Table Text Block]", "terseLabel": "Schedule of Unvested Restricted Stock Units Roll Forward" } } }, "localname": "ScheduleOfUnvestedRestrictedStockUnitsRollForwardTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember": { "auth_ref": [ "r546" ], "lang": { "en-us": { "role": { "documentation": "Fixed rate on U.S. dollar, constant-notional interest rate swap that has its variable-rate leg referenced to Secured Overnight Financing Rate (SOFR) with no additional spread over SOFR on variable-rate leg.", "label": "Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]", "terseLabel": "Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate" } } }, "localname": "SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_SegmentReportingPolicyPolicyTextBlock": { "auth_ref": [ "r200", "r201", "r202", "r203", "r204", "r205", "r217" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for segment reporting.", "label": "Segment Reporting, Policy [Policy Text Block]", "terseLabel": "Segment reporting" } } }, "localname": "SegmentReportingPolicyPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_SellingGeneralAndAdministrativeExpense": { "auth_ref": [ "r87" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfOperations": { "order": 9.0, "parentTag": "us-gaap_OperatingIncomeLoss", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.", "label": "Selling, General and Administrative Expense", "terseLabel": "Selling, general and administrative expenses" } } }, "localname": "SellingGeneralAndAdministrativeExpense", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfOperations", "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_SellingGeneralAndAdministrativeExpensesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Primary financial statement caption encompassing selling, general and administrative expense.", "label": "Selling, General and Administrative Expenses [Member]", "terseLabel": "Selling, general and administrative expenses" } } }, "localname": "SellingGeneralAndAdministrativeExpensesMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesAdvertisingCostsDetails", "http://ati.com/role/EmployeeBenefitPlansDetails", "http://ati.com/role/PropertyAndEquipmentDepreciationExpenseDetails" ], "xbrltype": "domainItemType" }, "us-gaap_SellingGeneralAndAdministrativeExpensesPolicyTextBlock": { "auth_ref": [ "r452" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for inclusion of significant items in the selling, general and administrative (or similar) expense report caption.", "label": "Selling, General and Administrative Expenses, Policy [Policy Text Block]", "terseLabel": "Selling, general and administrative expenses" } } }, "localname": "SellingGeneralAndAdministrativeExpensesPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_ShareBasedCompensation": { "auth_ref": [ "r106" ], "calculation": { "http://ati.com/role/ConsolidatedStatementsOfCashFlows": { "order": 31.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of noncash expense for share-based payment arrangement.", "label": "Share-based Payment Arrangement, Noncash Expense", "terseLabel": "Share-based compensation" } } }, "localname": "ShareBasedCompensation", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1": { "auth_ref": [ "r408" ], "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/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationNarrativeDetails", "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "durationItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod": { "auth_ref": [ "r418" ], "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)", "terseLabel": "Forfeited (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationActivityOfUnvestedRsasAndTheRespectiveWeightedAverageFairValueDetails", "http://ati.com/role/ShareBasedCompensationActivityOfUnvestedRsusAndTheRespectiveWeightedAverageFairValueDetails", "http://ati.com/role/ShareBasedCompensationNarrativeDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue": { "auth_ref": [ "r423" ], "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 usd per share)", "verboseLabel": "Forfeited (in usd per share)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationActivityOfUnvestedRsasAndTheRespectiveWeightedAverageFairValueDetails", "http://ati.com/role/ShareBasedCompensationActivityOfUnvestedRsusAndTheRespectiveWeightedAverageFairValueDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod": { "auth_ref": [ "r421" ], "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": "Awards granted in period (in shares)", "verboseLabel": "Issued (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationActivityOfUnvestedRsasAndTheRespectiveWeightedAverageFairValueDetails", "http://ati.com/role/ShareBasedCompensationActivityOfUnvestedRsusAndTheRespectiveWeightedAverageFairValueDetails", "http://ati.com/role/ShareBasedCompensationNarrativeDetails", "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue": { "auth_ref": [ "r421" ], "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": "Issued (in usd per share)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationActivityOfUnvestedRsasAndTheRespectiveWeightedAverageFairValueDetails", "http://ati.com/role/ShareBasedCompensationActivityOfUnvestedRsusAndTheRespectiveWeightedAverageFairValueDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber": { "auth_ref": [ "r420" ], "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": "Outstanding at ending of period (in shares)", "periodStartLabel": "Outstanding at beginning of period (in shares)", "terseLabel": "Remaining unvested shares (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationActivityOfUnvestedRsasAndTheRespectiveWeightedAverageFairValueDetails", "http://ati.com/role/ShareBasedCompensationActivityOfUnvestedRsusAndTheRespectiveWeightedAverageFairValueDetails", "http://ati.com/role/ShareBasedCompensationNarrativeDetails" ], "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": "RSUs" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationActivityOfUnvestedRsasAndTheRespectiveWeightedAverageFairValueDetails", "http://ati.com/role/ShareBasedCompensationActivityOfUnvestedRsusAndTheRespectiveWeightedAverageFairValueDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue": { "auth_ref": [ "r420" ], "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": "Outstanding at ending of period, (in usd per share)", "periodStartLabel": "Outstanding at beginning of period, (in usd per share)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationActivityOfUnvestedRsasAndTheRespectiveWeightedAverageFairValueDetails", "http://ati.com/role/ShareBasedCompensationActivityOfUnvestedRsusAndTheRespectiveWeightedAverageFairValueDetails" ], "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/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationActivityOfUnvestedRsasAndTheRespectiveWeightedAverageFairValueDetails", "http://ati.com/role/ShareBasedCompensationActivityOfUnvestedRsusAndTheRespectiveWeightedAverageFairValueDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod": { "auth_ref": [ "r422" ], "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)", "terseLabel": "Vested (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationActivityOfUnvestedRsasAndTheRespectiveWeightedAverageFairValueDetails", "http://ati.com/role/ShareBasedCompensationActivityOfUnvestedRsusAndTheRespectiveWeightedAverageFairValueDetails", "http://ati.com/role/ShareBasedCompensationNarrativeDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue": { "auth_ref": [ "r422" ], "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", "verboseLabel": "Vested (in usd per share)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationActivityOfUnvestedRsasAndTheRespectiveWeightedAverageFairValueDetails", "http://ati.com/role/ShareBasedCompensationActivityOfUnvestedRsusAndTheRespectiveWeightedAverageFairValueDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate": { "auth_ref": [ "r433" ], "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": "Expected dividend" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationValuationAssumptionDetails" ], "xbrltype": "percentItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate": { "auth_ref": [ "r432" ], "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": "Volatility" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationValuationAssumptionDetails" ], "xbrltype": "percentItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate": { "auth_ref": [ "r434" ], "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/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationValuationAssumptionDetails" ], "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/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationActivityOfUnvestedRsasAndTheRespectiveWeightedAverageFairValueDetails", "http://ati.com/role/ShareBasedCompensationActivityOfUnvestedRsusAndTheRespectiveWeightedAverageFairValueDetails", "http://ati.com/role/ShareBasedCompensationNarrativeDetails", "http://ati.com/role/ShareBasedCompensationScheduleOfShareBasedPaymentArrangementOptionActivityDetails", "http://ati.com/role/ShareBasedCompensationValuationAssumptionDetails", "http://ati.com/role/StockholdersEquityReservedSharesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized": { "auth_ref": [ "r410" ], "lang": { "en-us": { "role": { "documentation": "Number of shares authorized for issuance under share-based payment arrangement.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized", "terseLabel": "Shares authorized for issuance ( in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationNarrativeDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]", "terseLabel": "Weighted-Average Contractual Term (in years)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationScheduleOfShareBasedPaymentArrangementOptionActivityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber": { "auth_ref": [ "r416" ], "lang": { "en-us": { "role": { "documentation": "The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number", "terseLabel": "Stock options exercisable (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationScheduleOfShareBasedPaymentArrangementOptionActivityDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice": { "auth_ref": [ "r416" ], "lang": { "en-us": { "role": { "documentation": "The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price", "terseLabel": "Stock options exercisable, weighted-average exercise price (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationScheduleOfShareBasedPaymentArrangementOptionActivityDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue": { "auth_ref": [ "r426" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value", "terseLabel": "Stock options exercised, aggregate intrinsic value" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationScheduleOfShareBasedPaymentArrangementOptionActivityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod": { "auth_ref": [ "r419" ], "lang": { "en-us": { "role": { "documentation": "For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period", "negatedTerseLabel": "Stock options cancelled, forfeited, expired (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationScheduleOfShareBasedPaymentArrangementOptionActivityDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice": { "auth_ref": [ "r419" ], "lang": { "en-us": { "role": { "documentation": "Weighted average price of options that were either forfeited or expired.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price", "terseLabel": "Stock options cancelled, forfeited, expired, weighted-averaged exercise price (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationScheduleOfShareBasedPaymentArrangementOptionActivityDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Gross number of share options (or share units) granted during the period.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross", "terseLabel": "Stock options granted (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationNarrativeDetails", "http://ati.com/role/ShareBasedCompensationScheduleOfShareBasedPaymentArrangementOptionActivityDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue": { "auth_ref": [ "r425" ], "lang": { "en-us": { "role": { "documentation": "The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value", "terseLabel": "Weighted-average grant-date fair value" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationValuationAssumptionDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue": { "auth_ref": [ "r438" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value", "terseLabel": "Stock options outstanding, aggregate intrinsic value" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationScheduleOfShareBasedPaymentArrangementOptionActivityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber": { "auth_ref": [ "r415", "r438" ], "lang": { "en-us": { "role": { "documentation": "Number of options outstanding, including both vested and non-vested options.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number", "periodEndLabel": "Stock options outstanding, ending balance (in shares)", "periodStartLabel": "Stock options outstanding, beginning balance (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationScheduleOfShareBasedPaymentArrangementOptionActivityDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]", "terseLabel": "Number of Options" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationScheduleOfShareBasedPaymentArrangementOptionActivityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice": { "auth_ref": [ "r414" ], "lang": { "en-us": { "role": { "documentation": "Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price", "periodEndLabel": "Stock options outstanding, weighted-average exercise price, ending balance (in dollars per share)", "periodStartLabel": "Stock options outstanding, weighted-average exercise price, beginning balance (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationScheduleOfShareBasedPaymentArrangementOptionActivityDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]", "terseLabel": "Weighted-Average Exercise Price" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationScheduleOfShareBasedPaymentArrangementOptionActivityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain": { "auth_ref": [ "r405", "r411" ], "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/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationActivityOfUnvestedRsasAndTheRespectiveWeightedAverageFairValueDetails", "http://ati.com/role/ShareBasedCompensationActivityOfUnvestedRsusAndTheRespectiveWeightedAverageFairValueDetails", "http://ati.com/role/ShareBasedCompensationNarrativeDetails", "http://ati.com/role/ShareBasedCompensationValuationAssumptionDetails", "http://ati.com/role/StockholdersEquityReservedSharesDetails", "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Weighted average price at which option holders acquired shares when converting their stock options into shares.", "label": "Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price", "terseLabel": "Stock options exercised, weighted-average exercise price (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationScheduleOfShareBasedPaymentArrangementOptionActivityDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.", "label": "Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price", "terseLabel": "Stock options granted, weighted-average exercise price (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationScheduleOfShareBasedPaymentArrangementOptionActivityDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy": { "auth_ref": [ "r407", "r412" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for award under share-based payment arrangement. Includes, but is not limited to, methodology and assumption used in measuring cost.", "label": "Share-based Payment Arrangement [Policy Text Block]", "terseLabel": "Share-based compensation" } } }, "localname": "ShareBasedCompensationOptionAndIncentivePlansPolicy", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis": { "auth_ref": [ "r429" ], "lang": { "en-us": { "role": { "documentation": "Information by range of option prices pertaining to options granted.", "label": "Exercise Price Range [Axis]", "terseLabel": "Exercise Price Range [Axis]" } } }, "localname": "ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain": { "auth_ref": [ "r435" ], "lang": { "en-us": { "role": { "documentation": "Supplementary information on outstanding and exercisable share awards as of the balance sheet date which stratifies outstanding options by ranges of exercise prices.", "label": "Exercise Price Range [Domain]", "terseLabel": "Exercise Price Range [Domain]" } } }, "localname": "ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod": { "auth_ref": [ "r409" ], "lang": { "en-us": { "role": { "documentation": "Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period", "terseLabel": "Share-based compensation arrangement by share-based payment award, expiration period" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationNarrativeDetails" ], "xbrltype": "durationItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1": { "auth_ref": [ "r431", "r447" ], "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": "Term (years)" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationValuationAssumptionDetails" ], "xbrltype": "durationItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1": { "auth_ref": [ "r438" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value", "terseLabel": "Stock options exercisable, aggregate intrinsic value" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationScheduleOfShareBasedPaymentArrangementOptionActivityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2": { "auth_ref": [ "r428" ], "lang": { "en-us": { "role": { "documentation": "Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term", "terseLabel": "Stock options outstanding, weighted-average remaining contractual term" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationScheduleOfShareBasedPaymentArrangementOptionActivityDetails" ], "xbrltype": "durationItemType" }, "us-gaap_SharesIssued": { "auth_ref": [ "r346" ], "lang": { "en-us": { "role": { "documentation": "Number of shares of stock issued as of the balance sheet date, including shares that had been issued and were previously outstanding but which are now held in the treasury.", "label": "Shares, Issued", "periodEndLabel": "Ending balance (in shares)", "periodStartLabel": "Beginning balance (in shares)" } } }, "localname": "SharesIssued", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity" ], "xbrltype": "sharesItemType" }, "us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Number of shares used to settle grantee's tax withholding obligation for award under share-based payment arrangement.", "label": "Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation", "terseLabel": "Tax withholdings related to net share settlement of restricted stock awards (in shares)" } } }, "localname": "SharesPaidForTaxWithholdingForShareBasedCompensation", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity", "http://ati.com/role/StockholdersEquityNarrativeDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_SharesSubjectToMandatoryRedemptionSettlementTermsAmountNoncurrent": { "auth_ref": [ "r324" ], "calculation": { "http://ati.com/role/ConsolidatedBalanceSheets": { "order": 18.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The amount that is required to be paid, determined under the conditions specified in the contract, if as of the reporting date, the holder of the share has exercised the right to or the shares are mandatorily redeemable after one year from the reporting date or operating cycle, if longer.", "label": "Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Share Value, Amount, Noncurrent", "terseLabel": "Redeemable preferred stock" } } }, "localname": "SharesSubjectToMandatoryRedemptionSettlementTermsAmountNoncurrent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedBalanceSheets", "http://ati.com/role/RedeemablePreferredStockDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_SoftwareAndSoftwareDevelopmentCostsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Purchased software applications and internally developed software for sale, licensing or long-term internal use.", "label": "Software and Software Development Costs [Member]", "terseLabel": "Software and Software Development Costs" } } }, "localname": "SoftwareAndSoftwareDevelopmentCostsMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/PropertyAndEquipmentNarrativeDetails" ], "xbrltype": "domainItemType" }, "us-gaap_StateAndLocalJurisdictionMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Designated tax department of a state or local government entitled to levy and collect income taxes from the entity.", "label": "State and Local Jurisdiction [Member]", "terseLabel": "State" } } }, "localname": "StateAndLocalJurisdictionMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesNarrativeDetails" ], "xbrltype": "domainItemType" }, "us-gaap_StatementClassOfStockAxis": { "auth_ref": [ "r25", "r26", "r27", "r118", "r121", "r158", "r159", "r164", "r168", "r170", "r181", "r182", "r183", "r232", "r283", "r287", "r288", "r289", "r292", "r293", "r329", "r330", "r334", "r338", "r346", "r570", "r708" ], "lang": { "en-us": { "role": { "documentation": "Information by the different classes of stock of the entity.", "label": "Class of Stock [Axis]", "terseLabel": "Class of Stock [Axis]" } } }, "localname": "StatementClassOfStockAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureNarrativeDetails", "http://ati.com/role/BusinessCombinationsAndDivestitureSummaryOfSharesIssuedAndOutstandingDetails", "http://ati.com/role/Cover", "http://ati.com/role/LossEarningsPerShareAntidilutiveSecuritiesDetails", "http://ati.com/role/RedeemablePreferredStockDetails", "http://ati.com/role/StockholdersEquityNarrativeDetails", "http://ati.com/role/StockholdersEquityReservedSharesDetails", "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_StatementEquityComponentsAxis": { "auth_ref": [ "r2", "r56", "r75", "r76", "r77", "r136", "r137", "r138", "r141", "r150", "r153", "r180", "r236", "r346", "r355", "r443", "r444", "r445", "r486", "r487", "r557", "r580", "r581", "r582", "r583", "r584", "r585", "r688", "r689", "r690", "r719" ], "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/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity" ], "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/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows", "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity", "http://ati.com/role/ConsolidatedStatementsOfOperations" ], "xbrltype": "stringItemType" }, "us-gaap_StatementOfCashFlowsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Statement of Cash Flows [Abstract]" } } }, "localname": "StatementOfCashFlowsAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_StatementOfFinancialPositionAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Statement of Financial Position [Abstract]" } } }, "localname": "StatementOfFinancialPositionAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Statement of Comprehensive Income [Abstract]" } } }, "localname": "StatementOfIncomeAndComprehensiveIncomeAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_StatementOfStockholdersEquityAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Statement of Stockholders' Equity [Abstract]" } } }, "localname": "StatementOfStockholdersEquityAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_StatementTable": { "auth_ref": [ "r136", "r137", "r138", "r180", "r631" ], "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/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows", "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity", "http://ati.com/role/ConsolidatedStatementsOfOperations" ], "xbrltype": "stringItemType" }, "us-gaap_StockCompensationPlanMember": { "auth_ref": [ "r171" ], "lang": { "en-us": { "role": { "documentation": "Share-based payment arrangement in which award of equity shares are granted. Arrangement includes, but is not limited to, grantor incurring liability for product and service based on price of its shares.", "label": "Share-based Payment Arrangement [Member]", "terseLabel": "Service-Base Vesting", "verboseLabel": "Shares available for grant under the ATI 2021 Equity Incentive Plan" } } }, "localname": "StockCompensationPlanMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationNarrativeDetails", "http://ati.com/role/StockholdersEquityReservedSharesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_StockIssued1": { "auth_ref": [ "r112", "r113", "r114" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The fair value of stock issued in noncash financing activities.", "label": "Stock Issued", "verboseLabel": "Shares issued to Wilco Holdco Series A Preferred stockholders" } } }, "localname": "StockIssued1", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockIssuedDuringPeriodSharesAcquisitions": { "auth_ref": [ "r26", "r27", "r355" ], "lang": { "en-us": { "role": { "documentation": "Number of shares of stock issued during the period pursuant to acquisitions.", "label": "Stock Issued During Period, Shares, Acquisitions", "terseLabel": "FAII common shares (Class A and Class F)" } } }, "localname": "StockIssuedDuringPeriodSharesAcquisitions", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureSummaryOfSharesIssuedAndOutstandingDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities": { "auth_ref": [ "r55", "r305", "r346", "r347", "r355" ], "lang": { "en-us": { "role": { "documentation": "Number of shares issued during the period as a result of the conversion of convertible securities.", "label": "Stock Issued During Period, Shares, Conversion of Convertible Securities", "terseLabel": "Add: Shares issued to Wilco Holdco Series A Preferred stockholders (in shares)", "verboseLabel": "Shares issued to Wilco Holdco Series A Preferred stockholders (in shares)" } } }, "localname": "StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureSummaryOfSharesIssuedAndOutstandingDetails", "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity" ], "xbrltype": "sharesItemType" }, "us-gaap_StockIssuedDuringPeriodSharesNewIssues": { "auth_ref": [ "r26", "r27", "r346", "r355" ], "lang": { "en-us": { "role": { "disclosureGuidance": "Shares issued during period (in shares)", "documentation": "Number of new stock issued during the period.", "label": "Stock Issued During Period, Shares, New Issues", "terseLabel": "Shares issued through PIPE investment (in shares)", "verboseLabel": "Add: Shares issued through PIPE investment (in shares)" } } }, "localname": "StockIssuedDuringPeriodSharesNewIssues", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BusinessCombinationsAndDivestitureSummaryOfSharesIssuedAndOutstandingDetails", "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity", "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures": { "auth_ref": [ "r26", "r27", "r346", "r355" ], "lang": { "en-us": { "role": { "documentation": "Number of shares issued during the period related to Restricted Stock Awards, net of any shares forfeited.", "label": "Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures", "terseLabel": "Vesting of restricted shares related to converted ICUs (in shares)" } } }, "localname": "StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity" ], "xbrltype": "sharesItemType" }, "us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised": { "auth_ref": [ "r26", "r27", "r346", "r355", "r417" ], "lang": { "en-us": { "role": { "documentation": "Number of share options (or share units) exercised during the current period.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period", "negatedTerseLabel": "Stock options exercised (in shares)" } } }, "localname": "StockIssuedDuringPeriodSharesStockOptionsExercised", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ShareBasedCompensationScheduleOfShareBasedPaymentArrangementOptionActivityDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities": { "auth_ref": [ "r56", "r346", "r355" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The gross value of stock issued during the period upon the conversion of convertible securities.", "label": "Stock Issued During Period, Value, Conversion of Convertible Securities", "terseLabel": "Shares issued to Wilco Holdco Series A Preferred stockholders" } } }, "localname": "StockIssuedDuringPeriodValueConversionOfConvertibleSecurities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockIssuedDuringPeriodValueNewIssues": { "auth_ref": [ "r26", "r27", "r346", "r355" ], "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": "Shares issued through PIPE investment", "verboseLabel": "Value of shares issued" } } }, "localname": "StockIssuedDuringPeriodValueNewIssues", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity", "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockholdersEquity": { "auth_ref": [ "r27", "r32", "r33", "r121", "r228", "r232", "r570", "r617" ], "calculation": { "http://ati.com/role/ConsolidatedBalanceSheets": { "order": 25.0, "parentTag": "us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest", "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", "totalLabel": "Total ATI Physical Therapy, Inc. equity" } } }, "localname": "StockholdersEquity", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest": { "auth_ref": [ "r2", "r3", "r76", "r121", "r136", "r137", "r138", "r141", "r150", "r232", "r236", "r355", "r443", "r444", "r445", "r486", "r487", "r509", "r510", "r528", "r557", "r570", "r580", "r581", "r585", "r689", "r690", "r719" ], "calculation": { "http://ati.com/role/ConsolidatedBalanceSheets": { "order": 24.0, "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.", "label": "Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest", "periodEndLabel": "Ending balance", "periodStartLabel": "Beginning balance", "totalLabel": "Total stockholders' equity" } } }, "localname": "StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedBalanceSheets", "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]", "terseLabel": "Stockholders' equity:" } } }, "localname": "StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "stringItemType" }, "us-gaap_StockholdersEquityNoteDisclosureTextBlock": { "auth_ref": [ "r119", "r330", "r333", "r334", "r335", "r336", "r337", "r338", "r339", "r340", "r342", "r343", "r345", "r355", "r359" ], "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/2021-01-31", "presentation": [ "http://ati.com/role/StockholdersEquity" ], "xbrltype": "textBlockItemType" }, "us-gaap_StockholdersEquityNoteRedeemablePreferredStockIssuePolicy": { "auth_ref": [ "r23", "r24", "r326" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for redeemable preferred stock issued. This disclosure may include the accounting treatment for the difference, if there is any, between the carrying value and redemption amount. For example, describe whether the issuer accretes changes in the redemption value.", "label": "Stockholders' Equity Note, Redeemable Preferred Stock, Issue, Policy [Policy Text Block]", "terseLabel": "Preferred stock" } } }, "localname": "StockholdersEquityNoteRedeemablePreferredStockIssuePolicy", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_SubsequentEventLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.", "label": "Subsequent Event [Line Items]", "terseLabel": "Subsequent Event [Line Items]" } } }, "localname": "SubsequentEventLineItems", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_SubsequentEventMember": { "auth_ref": [ "r586", "r619" ], "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/2021-01-31", "presentation": [ "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_SubsequentEventTable": { "auth_ref": [ "r586", "r619" ], "lang": { "en-us": { "role": { "documentation": "Discloses pertinent information about one or more significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued.", "label": "Subsequent Event [Table]", "terseLabel": "Subsequent Event [Table]" } } }, "localname": "SubsequentEventTable", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_SubsequentEventTypeAxis": { "auth_ref": [ "r586", "r619" ], "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/2021-01-31", "presentation": [ "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_SubsequentEventTypeDomain": { "auth_ref": [ "r586", "r619" ], "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/2021-01-31", "presentation": [ "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_SubsequentEventsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Subsequent Events [Abstract]" } } }, "localname": "SubsequentEventsAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_SubsequentEventsTextBlock": { "auth_ref": [ "r618", "r620" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.", "label": "Subsequent Events [Text Block]", "terseLabel": "Subsequent Events" } } }, "localname": "SubsequentEventsTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/SubsequentEvents" ], "xbrltype": "textBlockItemType" }, "us-gaap_SupplementalCashFlowInformationAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Supplemental Cash Flow Information [Abstract]", "terseLabel": "Other supplemental disclosures:" } } }, "localname": "SupplementalCashFlowInformationAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_TradeAndOtherAccountsReceivablePolicy": { "auth_ref": [ "r221", "r222", "r223", "r224", "r226", "r229" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for accounts receivable.", "label": "Accounts Receivable [Policy Text Block]", "terseLabel": "Accounts receivable" } } }, "localname": "TradeAndOtherAccountsReceivablePolicy", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_TradeNamesMember": { "auth_ref": [ "r501" ], "lang": { "en-us": { "role": { "documentation": "Rights acquired through registration of a business name to gain or protect exclusive use thereof.", "label": "Trade Names [Member]", "terseLabel": "ATI trade name" } } }, "localname": "TradeNamesMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssetsIntangibleAssetsDetails", "http://ati.com/role/GoodwillTradeNameAndOtherIntangibleAssetsNarrativeDetails" ], "xbrltype": "domainItemType" }, "us-gaap_TreasuryStockMember": { "auth_ref": [ "r54", "r356" ], "lang": { "en-us": { "role": { "documentation": "Shares of an entity that have been repurchased by the entity. This stock has no voting rights and receives no dividends. Note that treasury stock may be recorded at its total cost or separately as par (or stated) value and additional paid in capital. Classified within stockholders' equity if nonredeemable or redeemable solely at the option of the issuer. Classified within temporary equity if redemption is outside the control of the issuer.", "label": "Treasury Stock [Member]", "terseLabel": "Treasury Stock" } } }, "localname": "TreasuryStockMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity" ], "xbrltype": "domainItemType" }, "us-gaap_TreasuryStockShares": { "auth_ref": [ "r54", "r356" ], "lang": { "en-us": { "role": { "documentation": "Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.", "label": "Treasury Stock, Shares", "terseLabel": "Treasury stock (in shares)" } } }, "localname": "TreasuryStockShares", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedBalanceSheetsParenthetical" ], "xbrltype": "sharesItemType" }, "us-gaap_TreasuryStockValue": { "auth_ref": [ "r54", "r356", "r357" ], "calculation": { "http://ati.com/role/ConsolidatedBalanceSheets": { "order": 28.0, "parentTag": "us-gaap_StockholdersEquity", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury.", "label": "Treasury Stock, Value", "negatedTerseLabel": "Treasury stock, at cost, 0.03 million shares and none at December 31, 2021 and 2020, respectively" } } }, "localname": "TreasuryStockValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_TypeOfAdoptionMember": { "auth_ref": [ "r0", "r1", "r2", "r3", "r4", "r140", "r141", "r142", "r143", "r154", "r230", "r231", "r233", "r234", "r235", "r236", "r237", "r238", "r282", "r439", "r440", "r441", "r442", "r443", "r444", "r445", "r446", "r484", "r485", "r486", "r487", "r549", "r550", "r551", "r552", "r553", "r554", "r555", "r556", "r557", "r558", "r559", "r571", "r572", "r573", "r574", "r575", "r576", "r577", "r578", "r610", "r633", "r634", "r635", "r686", "r687", "r688", "r689", "r690", "r691", "r692", "r693", "r694", "r695", "r696", "r697", "r715", "r716", "r717", "r718", "r719" ], "lang": { "en-us": { "role": { "documentation": "Amendment to accounting standards.", "label": "Accounting Standards Update [Domain]", "terseLabel": "Accounting Standards Update [Domain]" } } }, "localname": "TypeOfAdoptionMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_UnrealizedGainLossOnDerivatives": { "auth_ref": [ "r107" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period.", "label": "Unrealized Gain (Loss) on Derivatives", "terseLabel": "Derivative changes in fair value" } } }, "localname": "UnrealizedGainLossOnDerivatives", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_UnrecognizedTaxBenefits": { "auth_ref": [ "r454", "r464" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of unrecognized tax benefits.", "label": "Unrecognized Tax Benefits", "periodEndLabel": "Balance at end of period", "periodStartLabel": "Balance at beginning of period" } } }, "localname": "UnrecognizedTaxBenefits", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesUnrecognizedTaxBenefitsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions": { "auth_ref": [ "r465" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.", "label": "Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions", "negatedLabel": "Decreases for positions taken in prior years", "terseLabel": "Reduction in unrecognized tax benefit" } } }, "localname": "UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesNarrativeDetails", "http://ati.com/role/IncomeTaxesUnrecognizedTaxBenefitsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions": { "auth_ref": [ "r466" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.", "label": "Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions", "terseLabel": "Increases for positions taken during the year" } } }, "localname": "UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesUnrecognizedTaxBenefitsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_UnusualOrInfrequentItemLineItems": { "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": "Unusual or Infrequent Item, or Both [Line Items]", "terseLabel": "Unusual or Infrequent Item, or Both [Line Items]" } } }, "localname": "UnusualOrInfrequentItemLineItems", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/OverviewOfTheCompanyGeneralDistributionsDetails", "http://ati.com/role/OverviewOfTheCompanyNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_UnusualOrInfrequentItemTable": { "auth_ref": [ "r90" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of information about the nature and financial statement effect of an event or transaction that is unusual in nature or infrequent in occurrence, or both.", "label": "Unusual or Infrequent Item, or Both [Table]", "terseLabel": "Unusual or Infrequent Item, or Both [Table]" } } }, "localname": "UnusualOrInfrequentItemTable", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/OverviewOfTheCompanyGeneralDistributionsDetails", "http://ati.com/role/OverviewOfTheCompanyNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_UseOfEstimates": { "auth_ref": [ "r185", "r186", "r188", "r189", "r190", "r191", "r192" ], "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/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount": { "auth_ref": [ "r473" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.", "label": "Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount", "terseLabel": "Valuation allowance period increase (decrease)" } } }, "localname": "ValuationAllowanceDeferredTaxAssetChangeInAmount", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/IncomeTaxesNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember": { "auth_ref": [ "r128", "r129", "r130", "r132", "r133" ], "lang": { "en-us": { "role": { "documentation": "Valuation allowance of deferred tax asset attributable to deductible temporary difference and carryforward.", "label": "SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member]", "terseLabel": "Valuation allowance for deferred tax assets" } } }, "localname": "ValuationAllowanceOfDeferredTaxAssetsMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ScheduleIiValuationAndQualifyingAccountsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ValuationAllowancesAndReservesAdjustments": { "auth_ref": [ "r134" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of increase (decrease) in valuation and qualifying accounts and reserves from adjustment.", "label": "SEC Schedule, 12-09, Valuation Allowances and Reserves, Increase (Decrease) Adjustment", "negatedTerseLabel": "Deductions/ Adjustments" } } }, "localname": "ValuationAllowancesAndReservesAdjustments", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ScheduleIiValuationAndQualifyingAccountsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ValuationAllowancesAndReservesBalance": { "auth_ref": [ "r128", "r133" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of valuation and qualifying accounts and reserves.", "label": "SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount", "periodEndLabel": "Balance at End of Year", "periodStartLabel": "Balance at Beginning of Year" } } }, "localname": "ValuationAllowancesAndReservesBalance", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ScheduleIiValuationAndQualifyingAccountsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ValuationAllowancesAndReservesDomain": { "auth_ref": [ "r128", "r129", "r130", "r132", "r133" ], "lang": { "en-us": { "role": { "documentation": "Valuation and qualifying accounts and reserves.", "label": "SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain]" } } }, "localname": "ValuationAllowancesAndReservesDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ScheduleIiValuationAndQualifyingAccountsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ValuationAllowancesAndReservesRecoveries": { "auth_ref": [ "r131" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of increase in valuation and qualifying accounts and reserves from recovery of amount previously written off or reestablishment of reserve previously utilized.", "label": "SEC Schedule, 12-09, Valuation Allowances and Reserves, Addition, Recovery", "terseLabel": "Additions" } } }, "localname": "ValuationAllowancesAndReservesRecoveries", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ScheduleIiValuationAndQualifyingAccountsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ValuationAllowancesAndReservesTypeAxis": { "auth_ref": [ "r128", "r129", "r130", "r132", "r133" ], "lang": { "en-us": { "role": { "documentation": "Information by valuation and qualifying accounts and reserves.", "label": "SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis]" } } }, "localname": "ValuationAllowancesAndReservesTypeAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ScheduleIiValuationAndQualifyingAccountsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_VariableInterestEntityPrimaryBeneficiaryMember": { "auth_ref": [ "r514", "r515", "r523", "r524", "r525" ], "lang": { "en-us": { "role": { "documentation": "Variable Interest Entities (VIE) in which the entity has a controlling financial interest (as defined) and of which it is therefore the primary beneficiary. A controlling financial interest is determined based on both: (a) the entity's power to direct activities of the VIE that most significantly impact the VIE's economic performance and (b) the entity's obligation to absorb losses of the VIE that could potentially be significant to the VIE or the right to receive benefits from the VIE that could potentially be significant to the VIE. VIEs of which the entity is the primary beneficiary are included in the consolidated financial statements of the entity.", "label": "Variable Interest Entity, Primary Beneficiary [Member]", "terseLabel": "Variable Interest Entity, Primary Beneficiary" } } }, "localname": "VariableInterestEntityPrimaryBeneficiaryMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_VariableLeaseCost": { "auth_ref": [ "r601", "r608" ], "calculation": { "http://ati.com/role/LeasesLeaseCostDetails": { "order": 2.0, "parentTag": "us-gaap_LeaseCost", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases.", "label": "Variable Lease, Cost", "terseLabel": "Variable lease cost" } } }, "localname": "VariableLeaseCost", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/LeasesLeaseCostDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_VariableRateAxis": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Information by type of variable rate.", "label": "Variable Rate [Axis]", "terseLabel": "Variable Rate [Axis]" } } }, "localname": "VariableRateAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BorrowingsNarrativeDetails", "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_VariableRateDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Interest rate that fluctuates over time as a result of an underlying benchmark interest rate or index.", "label": "Variable Rate [Domain]", "terseLabel": "Variable Rate [Domain]" } } }, "localname": "VariableRateDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/BorrowingsNarrativeDetails", "http://ati.com/role/SubsequentEventsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_WarrantMember": { "auth_ref": [], "lang": { "en-us": { "role": { "disclosureGuidance": "Class A common stock Warrants outstanding", "documentation": "Security that gives the holder the right to purchase shares of stock in accordance with the terms of the instrument, usually upon payment of a specified amount.", "label": "Warrant [Member]", "verboseLabel": "Warrants" } } }, "localname": "WarrantMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/LossEarningsPerShareAntidilutiveSecuritiesDetails", "http://ati.com/role/StockholdersEquityReservedSharesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding": { "auth_ref": [ "r157", "r170" ], "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)", "verboseLabel": "Weighted average shares outstanding, diluted (in shares)" } } }, "localname": "WeightedAverageNumberOfDilutedSharesOutstanding", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfOperations", "http://ati.com/role/LossEarningsPerShareLossEarningsPerShareCalculationDetails", "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Weighted Average Number of Shares Outstanding, Diluted [Abstract]", "terseLabel": "Weighted average shares outstanding:" } } }, "localname": "WeightedAverageNumberOfSharesOutstandingAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfOperations" ], "xbrltype": "stringItemType" }, "us-gaap_WeightedAverageNumberOfSharesOutstandingBasic": { "auth_ref": [ "r155", "r170" ], "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 shares outstanding, basic (in shares)" } } }, "localname": "WeightedAverageNumberOfSharesOutstandingBasic", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/ConsolidatedStatementsOfOperations", "http://ati.com/role/LossEarningsPerShareLossEarningsPerShareCalculationDetails", "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Weighted Average Number of Shares Outstanding Reconciliation [Abstract]", "terseLabel": "Weighted average shares outstanding:" } } }, "localname": "WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://ati.com/role/SelectedQuarterlyFinancialDataUnauditedDetails" ], "xbrltype": "stringItemType" } }, "unitCount": 14 } }, "std_ref": { "r0": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "105", "URI": "http://asc.fasb.org/extlink&oid=124434974&loc=SL124442142-165695" }, "r1": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "105", "URI": "http://asc.fasb.org/extlink&oid=124434974&loc=SL124442142-165695" }, "r10": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=124098289&loc=d3e6676-107765" }, "r100": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585" }, "r101": { "Name": "Accounting Standards Codification", "Paragraph": "17", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3367-108585" }, "r102": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3000-108585" }, "r103": { "Name": "Accounting Standards Codification", "Paragraph": "24", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3521-108585" }, "r104": { "Name": "Accounting Standards Codification", "Paragraph": "25", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3536-108585" }, "r105": { "Name": "Accounting Standards Codification", "Paragraph": "25", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3536-108585" }, "r106": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585" }, "r107": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585" }, "r108": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585" }, "r109": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3044-108585" }, "r11": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=124098289&loc=d3e6787-107765" }, "r110": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123431023&loc=d3e4273-108586" }, "r111": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123431023&loc=d3e4297-108586" }, "r112": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123431023&loc=d3e4304-108586" }, "r113": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123431023&loc=d3e4313-108586" }, "r114": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123431023&loc=d3e4332-108586" }, "r115": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123431023&loc=SL98516268-108586" }, "r116": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=123372394&loc=d3e18823-107790" }, "r117": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=123372394&loc=d3e18823-107790" }, "r118": { "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" }, "r119": { "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" }, "r12": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=124098289&loc=d3e6801-107765" }, "r120": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08(f))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690" }, "r121": { "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" }, "r122": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08(h)(1)(Note 1))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690" }, "r123": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08(h)(2))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690" }, "r124": { "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" }, "r125": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08(m)(1)(iii))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690" }, "r126": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08(m)(2)(ii))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690" }, "r127": { "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" }, "r128": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.12-09(Column B))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690" }, "r129": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.12-09(Column C(1)))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690" }, "r13": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=124098289&loc=d3e6911-107765" }, "r130": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.12-09(Column C(2)))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690" }, "r131": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.12-09(Column C)(2))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690" }, "r132": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.12-09(Column D))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690" }, "r133": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.12-09(Column E))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690" }, "r134": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.12-09)", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690" }, "r135": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "235", "URI": "http://asc.fasb.org/topic&trid=2122369" }, "r136": { "Name": "Accounting Standards Codification", "Paragraph": "23", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124436220&loc=d3e21914-107793" }, "r137": { "Name": "Accounting Standards Codification", "Paragraph": "24", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124436220&loc=d3e21930-107793" }, "r138": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124436220&loc=d3e21711-107793" }, "r139": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124436220&loc=d3e21728-107793" }, "r14": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=124098289&loc=d3e6935-107765" }, "r140": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)(2)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22499-107794" }, "r141": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)(3)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22499-107794" }, "r142": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)(4)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22499-107794" }, "r143": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(2)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22499-107794" }, "r144": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22694-107794" }, "r145": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22694-107794" }, "r146": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=SL124452830-107794" }, "r147": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22583-107794" }, "r148": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22595-107794" }, "r149": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22644-107794" }, "r15": { "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" }, "r150": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22644-107794" }, "r151": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22644-107794" }, "r152": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22658-107794" }, "r153": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22663-107794" }, "r154": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 11.M.Q2)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=122038215&loc=d3e31137-122693" }, "r155": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=d3e1448-109256" }, "r156": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=d3e1377-109256" }, "r157": { "Name": "Accounting Standards Codification", "Paragraph": "16", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=d3e1505-109256" }, "r158": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=d3e1252-109256" }, "r159": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=d3e1278-109256" }, "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": "40", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=d3e1930-109256" }, "r161": { "Name": "Accounting Standards Codification", "Paragraph": "40", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)(1)", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=d3e1930-109256" }, "r162": { "Name": "Accounting Standards Codification", "Paragraph": "40", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)(2)", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=d3e1930-109256" }, "r163": { "Name": "Accounting Standards Codification", "Paragraph": "40", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)(3)", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=d3e1930-109256" }, "r164": { "Name": "Accounting Standards Codification", "Paragraph": "55", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=d3e2626-109256" }, "r165": { "Name": "Accounting Standards Codification", "Paragraph": "60", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=d3e2740-109256" }, "r166": { "Name": "Accounting Standards Codification", "Paragraph": "60B", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=SL5780133-109256" }, "r167": { "Name": "Accounting Standards Codification", "Paragraph": "60B", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=SL5780133-109256" }, "r168": { "Name": "Accounting Standards Codification", "Paragraph": "60B", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=SL5780133-109256" }, "r169": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=d3e1337-109256" }, "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": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257" }, "r171": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257" }, "r172": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=124432515&loc=d3e3630-109257" }, "r173": { "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" }, "r174": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=125512782&loc=d3e3842-109258" }, "r175": { "Name": "Accounting Standards Codification", "Paragraph": "52", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=125512782&loc=d3e4984-109258" }, "r176": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "260", "URI": "http://asc.fasb.org/topic&trid=2144383" }, "r177": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "270", "URI": "http://asc.fasb.org/extlink&oid=124502072&loc=d3e1280-108306" }, "r178": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "270", "URI": "http://asc.fasb.org/extlink&oid=124502072&loc=SL124452896-108306" }, "r179": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "270", "URI": "http://asc.fasb.org/topic&trid=2126967" }, "r18": { "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" }, "r180": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "272", "URI": "http://asc.fasb.org/extlink&oid=125520817&loc=d3e70191-108054" }, "r181": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "272", "URI": "http://asc.fasb.org/extlink&oid=125520817&loc=d3e70229-108054" }, "r182": { "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" }, "r183": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "272", "URI": "http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055" }, "r184": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592" }, "r185": { "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" }, "r186": { "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" }, "r187": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592" }, "r188": { "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" }, "r189": { "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" }, "r19": { "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" }, "r190": { "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" }, "r191": { "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" }, "r192": { "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" }, "r193": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "275", "URI": "http://asc.fasb.org/topic&trid=2134479" }, "r194": { "Name": "Accounting Standards Codification", "Paragraph": "18", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8672-108599" }, "r195": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599" }, "r196": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599" }, "r197": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599" }, "r198": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(h)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599" }, "r199": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599" }, "r2": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "105", "URI": "http://asc.fasb.org/extlink&oid=124434974&loc=SL124442142-165695" }, "r20": { "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" }, "r200": { "Name": "Accounting Standards Codification", "Paragraph": "29", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8864-108599" }, "r201": { "Name": "Accounting Standards Codification", "Paragraph": "29", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8864-108599" }, "r202": { "Name": "Accounting Standards Codification", "Paragraph": "29", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8864-108599" }, "r203": { "Name": "Accounting Standards Codification", "Paragraph": "29", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8864-108599" }, "r204": { "Name": "Accounting Standards Codification", "Paragraph": "29", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8864-108599" }, "r205": { "Name": "Accounting Standards Codification", "Paragraph": "29", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8864-108599" }, "r206": { "Name": "Accounting Standards Codification", "Paragraph": "30", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599" }, "r207": { "Name": "Accounting Standards Codification", "Paragraph": "30", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599" }, "r208": { "Name": "Accounting Standards Codification", "Paragraph": "30", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599" }, "r209": { "Name": "Accounting Standards Codification", "Paragraph": "30", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599" }, "r21": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(26)(a))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r210": { "Name": "Accounting Standards Codification", "Paragraph": "31", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8924-108599" }, "r211": { "Name": "Accounting Standards Codification", "Paragraph": "32", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599" }, "r212": { "Name": "Accounting Standards Codification", "Paragraph": "32", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599" }, "r213": { "Name": "Accounting Standards Codification", "Paragraph": "32", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599" }, "r214": { "Name": "Accounting Standards Codification", "Paragraph": "32", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599" }, "r215": { "Name": "Accounting Standards Codification", "Paragraph": "32", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599" }, "r216": { "Name": "Accounting Standards Codification", "Paragraph": "40", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e9031-108599" }, "r217": { "Name": "Accounting Standards Codification", "Paragraph": "41", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599" }, "r218": { "Name": "Accounting Standards Codification", "Paragraph": "42", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e9054-108599" }, "r219": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=124259787&loc=d3e4428-111522" }, "r22": { "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" }, "r220": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=124259787&loc=d3e4531-111522" }, "r221": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=d3e4975-111524" }, "r222": { "Name": "Accounting Standards Codification", "Paragraph": "11B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524" }, "r223": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524" }, "r224": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=d3e5033-111524" }, "r225": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=d3e5074-111524" }, "r226": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=d3e5093-111524" }, "r227": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=d3e5144-111524" }, "r228": { "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=122038336&loc=d3e74512-122707" }, "r229": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=84159169&loc=d3e10133-111534" }, "r23": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(27)(b))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r230": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=124402435&loc=SL124402458-218513" }, "r231": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=124402435&loc=SL124402458-218513" }, "r232": { "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" }, "r233": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=122640432&loc=SL121648383-210437" }, "r234": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=122640432&loc=SL121648383-210437" }, "r235": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=122640432&loc=SL121648383-210437" }, "r236": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=122640432&loc=SL121648383-210437" }, "r237": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(e)(3)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=122640432&loc=SL121648383-210437" }, "r238": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(e)(4)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=122640432&loc=SL121648383-210437" }, "r239": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446" }, "r24": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(27)(c))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r240": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447" }, "r241": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "05", "SubTopic": "10", "Topic": "340", "URI": "http://asc.fasb.org/extlink&oid=123349782&loc=d3e5879-108316" }, "r242": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "340", "URI": "http://asc.fasb.org/extlink&oid=6387103&loc=d3e6435-108320" }, "r243": { "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" }, "r244": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=99380562&loc=d3e13777-109266" }, "r245": { "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" }, "r246": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267" }, "r247": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(e)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267" }, "r248": { "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" }, "r249": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=121556970&loc=d3e13854-109267" }, "r25": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(27))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r250": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=121556970&loc=d3e13854-109267" }, "r251": { "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" }, "r252": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275" }, "r253": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(b)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275" }, "r254": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(d)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275" }, "r255": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275" }, "r256": { "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" }, "r257": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275" }, "r258": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)(1)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275" }, "r259": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(b)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275" }, "r26": { "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" }, "r260": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(d)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275" }, "r261": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(b)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16373-109275" }, "r262": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(b),(d)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16373-109275" }, "r263": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "350", "URI": "http://asc.fasb.org/topic&trid=2144416" }, "r264": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "05", "SubTopic": "10", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=109226317&loc=d3e202-110218" }, "r265": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=123351718&loc=d3e2443-110228" }, "r266": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229" }, "r267": { "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" }, "r268": { "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" }, "r269": { "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" }, "r27": { "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" }, "r270": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=109226691&loc=d3e2941-110230" }, "r271": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=109226691&loc=d3e2941-110230" }, "r272": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 5.CC)", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=27011434&loc=d3e125687-122742" }, "r273": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "360", "URI": "http://asc.fasb.org/topic&trid=2155823" }, "r274": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "420", "URI": "http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869" }, "r275": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "440", "URI": "http://asc.fasb.org/extlink&oid=123406679&loc=d3e25336-109308" }, "r276": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "440", "URI": "http://asc.fasb.org/extlink&oid=123406679&loc=d3e25336-109308" }, "r277": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "440", "URI": "http://asc.fasb.org/topic&trid=2144648" }, "r278": { "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" }, "r279": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "450", "URI": "http://asc.fasb.org/topic&trid=2127136" }, "r28": { "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" }, "r280": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123465755&loc=d3e1835-112601" }, "r281": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123465755&loc=SL6230698-112601" }, "r282": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S65", "SubTopic": "10", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=124359872&loc=SL124427846-239511" }, "r283": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.13-01(a)(4)(i))", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756" }, "r284": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.13-01(a)(4)(ii))", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756" }, "r285": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.13-01(a)(4)(iii)(A))", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756" }, "r286": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.13-01(a)(4)(iii))", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756" }, "r287": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.13-01(a)(4)(iv))", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756" }, "r288": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.13-01(a)(5))", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756" }, "r289": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.13-02(a)(4)(i))", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756" }, "r29": { "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" }, "r290": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.13-02(a)(4)(iii)(A))", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756" }, "r291": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.13-02(a)(4)(iii)(B))", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756" }, "r292": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.13-02(a)(4)(iv))", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756" }, "r293": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.13-02(a)(5))", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756" }, "r294": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611" }, "r295": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611" }, "r296": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611" }, "r297": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611" }, "r298": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(e)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611" }, "r299": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(f)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611" }, "r3": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "105", "URI": "http://asc.fasb.org/extlink&oid=124434974&loc=SL124442142-165695" }, "r30": { "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" }, "r300": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(h)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611" }, "r301": { "Name": "Accounting Standards Codification", "Paragraph": "1D", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495340-112611" }, "r302": { "Name": "Accounting Standards Codification", "Paragraph": "1D", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495340-112611" }, "r303": { "Name": "Accounting Standards Codification", "Paragraph": "1D", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495340-112611" }, "r304": { "Name": "Accounting Standards Codification", "Paragraph": "1E", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495348-112611" }, "r305": { "Name": "Accounting Standards Codification", "Paragraph": "1E", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495348-112611" }, "r306": { "Name": "Accounting Standards Codification", "Paragraph": "1E", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495348-112611" }, "r307": { "Name": "Accounting Standards Codification", "Paragraph": "1F", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495355-112611" }, "r308": { "Name": "Accounting Standards Codification", "Paragraph": "1F", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495355-112611" }, "r309": { "Name": "Accounting Standards Codification", "Paragraph": "1F", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(1)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495355-112611" }, "r31": { "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" }, "r310": { "Name": "Accounting Standards Codification", "Paragraph": "1F", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(2)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495355-112611" }, "r311": { "Name": "Accounting Standards Codification", "Paragraph": "1I", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495371-112611" }, "r312": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(1)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466204&loc=SL6031897-161870" }, "r313": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(2)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466204&loc=SL6031897-161870" }, "r314": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(3)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466204&loc=SL6031897-161870" }, "r315": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466204&loc=SL6036836-161870" }, "r316": { "Name": "Accounting Standards Codification", "Paragraph": "69B", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466577&loc=SL123495735-112612" }, "r317": { "Name": "Accounting Standards Codification", "Paragraph": "69C", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466577&loc=SL123495737-112612" }, "r318": { "Name": "Accounting Standards Codification", "Paragraph": "69E", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466577&loc=SL123495743-112612" }, "r319": { "Name": "Accounting Standards Codification", "Paragraph": "69F", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466577&loc=SL123495745-112612" }, "r32": { "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" }, "r320": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "40", "SubTopic": "50", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123467658&loc=d3e12317-112629" }, "r321": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "40", "SubTopic": "50", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123467658&loc=d3e12355-112629" }, "r322": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "470", "URI": "http://asc.fasb.org/topic&trid=2208564" }, "r323": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "25", "SubTopic": "10", "Topic": "480", "URI": "http://asc.fasb.org/extlink&oid=109262497&loc=d3e20148-110875" }, "r324": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "480", "URI": "http://asc.fasb.org/extlink&oid=109262807&loc=d3e22047-110879" }, "r325": { "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=122040564&loc=d3e177068-122764" }, "r326": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "05", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467743&loc=d3e20905-112640" }, "r327": { "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" }, "r328": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=d3e21553-112644" }, "r329": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644" }, "r33": { "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" }, "r330": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644" }, "r331": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644" }, "r332": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644" }, "r333": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(g)", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644" }, "r334": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(h)", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644" }, "r335": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(i)", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644" }, "r336": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644" }, "r337": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496171-112644" }, "r338": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496171-112644" }, "r339": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496171-112644" }, "r34": { "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" }, "r340": { "Name": "Accounting Standards Codification", "Paragraph": "16", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496180-112644" }, "r341": { "Name": "Accounting Standards Codification", "Paragraph": "16", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496180-112644" }, "r342": { "Name": "Accounting Standards Codification", "Paragraph": "18", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496189-112644" }, "r343": { "Name": "Accounting Standards Codification", "Paragraph": "18", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496189-112644" }, "r344": { "Name": "Accounting Standards Codification", "Paragraph": "18", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496189-112644" }, "r345": { "Name": "Accounting Standards Codification", "Paragraph": "18", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496189-112644" }, "r346": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=d3e21463-112644" }, "r347": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=d3e21475-112644" }, "r348": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=d3e21484-112644" }, "r349": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=d3e21488-112644" }, "r35": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(4)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r350": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=d3e21488-112644" }, "r351": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=d3e21506-112644" }, "r352": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=d3e21506-112644" }, "r353": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=d3e21521-112644" }, "r354": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=d3e21538-112644" }, "r355": { "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" }, "r356": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655" }, "r357": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=6405834&loc=d3e23315-112656" }, "r358": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "50", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=6784392&loc=d3e188667-122775" }, "r359": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "505", "URI": "http://asc.fasb.org/topic&trid=2208762" }, "r36": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(4))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r360": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130551-203045" }, "r361": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045" }, "r362": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045" }, "r363": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045" }, "r364": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045" }, "r365": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045" }, "r366": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)(2)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130556-203045" }, "r367": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130558-203045" }, "r368": { "Name": "Accounting Standards Codification", "Paragraph": "17", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130561-203045" }, "r369": { "Name": "Accounting Standards Codification", "Paragraph": "18", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130563-203045" }, "r37": { "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" }, "r370": { "Name": "Accounting Standards Codification", "Paragraph": "18", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130563-203045" }, "r371": { "Name": "Accounting Standards Codification", "Paragraph": "19", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130564-203045" }, "r372": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130566-203045" }, "r373": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130566-203045" }, "r374": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130566-203045" }, "r375": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130566-203045" }, "r376": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130543-203045" }, "r377": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130545-203045" }, "r378": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130550-203045" }, "r379": { "Name": "Accounting Standards Codification", "Paragraph": "91", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123410239&loc=SL49130690-203046-203046" }, "r38": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.13(a))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r380": { "Name": "Accounting Standards Codification", "Paragraph": "91", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123410239&loc=SL49130690-203046-203046" }, "r381": { "Name": "Accounting Standards Codification", "Paragraph": "91", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123410239&loc=SL49130690-203046-203046" }, "r382": { "Name": "Accounting Standards Codification", "Paragraph": "91", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123410239&loc=SL49130690-203046-203046" }, "r383": { "Name": "Accounting Standards Codification", "Paragraph": "91", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123410239&loc=SL49130690-203046-203046" }, "r384": { "Name": "Accounting Standards Codification", "Paragraph": "91", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Subparagraph": "(f)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123410239&loc=SL49130690-203046-203046" }, "r385": { "Name": "Accounting Standards Codification", "Paragraph": "91", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Subparagraph": "(g)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123410239&loc=SL49130690-203046-203046" }, "r386": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "606", "URI": "http://asc.fasb.org/topic&trid=49130388" }, "r387": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "705", "URI": "http://asc.fasb.org/topic&trid=2122478" }, "r388": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(i)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r389": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(ii)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r39": { "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" }, "r390": { "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=123447040&loc=d3e1928-114920" }, "r391": { "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=123447040&loc=d3e1928-114920" }, "r392": { "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=123447040&loc=d3e1928-114920" }, "r393": { "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=123447040&loc=d3e1928-114920" }, "r394": { "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=123447040&loc=d3e1928-114920" }, "r395": { "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=123447040&loc=d3e1928-114920" }, "r396": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(n)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r397": { "Name": "Accounting Standards Codification", "Paragraph": "17", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921" }, "r398": { "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" }, "r399": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "SubTopic": "70", "Topic": "715", "URI": "http://asc.fasb.org/subtopic&trid=2235116" }, "r4": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "105", "URI": "http://asc.fasb.org/extlink&oid=124434974&loc=SL124442142-165695" }, "r40": { "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" }, "r400": { "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" }, "r401": { "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" }, "r402": { "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" }, "r403": { "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" }, "r404": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "35", "SubTopic": "10", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=123468992&loc=d3e4534-113899" }, "r405": { "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" }, "r406": { "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" }, "r407": { "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" }, "r408": { "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" }, "r409": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(2)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r41": { "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" }, "r410": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(3)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r411": { "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" }, "r412": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b),(f)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r413": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r414": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)(i)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r415": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)(i)-(ii)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r416": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)(iii)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r417": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)(iv)(2)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r418": { "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" }, "r419": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)(iv)(3)-(4)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r42": { "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" }, "r420": { "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" }, "r421": { "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" }, "r422": { "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" }, "r423": { "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" }, "r424": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r425": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)(1)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r426": { "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" }, "r427": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r428": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(e)(1)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r429": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r43": { "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" }, "r430": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)(2)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r431": { "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" }, "r432": { "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" }, "r433": { "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" }, "r434": { "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" }, "r435": { "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" }, "r436": { "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" }, "r437": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(i)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r438": { "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" }, "r439": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333" }, "r44": { "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" }, "r440": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333" }, "r441": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333" }, "r442": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333" }, "r443": { "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" }, "r444": { "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" }, "r445": { "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" }, "r446": { "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" }, "r447": { "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=122041274&loc=d3e301413-122809" }, "r448": { "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=122041274&loc=d3e301413-122809" }, "r449": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=122142933&loc=d3e11149-113907" }, "r45": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.19-26)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r450": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=122142933&loc=d3e11178-113907" }, "r451": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "718", "URI": "http://asc.fasb.org/topic&trid=2228938" }, "r452": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "35", "Subparagraph": "(a)", "Topic": "720", "URI": "http://asc.fasb.org/extlink&oid=6420018&loc=d3e36677-107848" }, "r453": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "35", "Subparagraph": "(b)", "Topic": "720", "URI": "http://asc.fasb.org/extlink&oid=6420018&loc=d3e36677-107848" }, "r454": { "Name": "Accounting Standards Codification", "Paragraph": "10B", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=123427490&loc=SL37586934-109318" }, "r455": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=123427490&loc=d3e32059-109318" }, "r456": { "Name": "Accounting Standards Codification", "Paragraph": "25", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=123427490&loc=d3e32247-109318" }, "r457": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=123427490&loc=d3e32280-109318" }, "r458": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=123427490&loc=d3e31917-109318" }, "r459": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=123427490&loc=d3e31931-109318" }, "r46": { "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" }, "r460": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32672-109319" }, "r461": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319" }, "r462": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32705-109319" }, "r463": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32718-109319" }, "r464": { "Name": "Accounting Standards Codification", "Paragraph": "15A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=SL6600010-109319" }, "r465": { "Name": "Accounting Standards Codification", "Paragraph": "15A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(1)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=SL6600010-109319" }, "r466": { "Name": "Accounting Standards Codification", "Paragraph": "15A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(2)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=SL6600010-109319" }, "r467": { "Name": "Accounting Standards Codification", "Paragraph": "15A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=SL6600010-109319" }, "r468": { "Name": "Accounting Standards Codification", "Paragraph": "17", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32809-109319" }, "r469": { "Name": "Accounting Standards Codification", "Paragraph": "19", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32840-109319" }, "r47": { "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" }, "r470": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319" }, "r471": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319" }, "r472": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319" }, "r473": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319" }, "r474": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32847-109319" }, "r475": { "Name": "Accounting Standards Codification", "Paragraph": "21", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32857-109319" }, "r476": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32559-109319" }, "r477": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32559-109319" }, "r478": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32621-109319" }, "r479": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32632-109319" }, "r48": { "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" }, "r480": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32639-109319" }, "r481": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32639-109319" }, "r482": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32639-109319" }, "r483": { "Name": "Accounting Standards Codification", "Paragraph": "217", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=124434304&loc=d3e36027-109320" }, "r484": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=123459177&loc=SL121830611-158277" }, "r485": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=123459177&loc=SL121830611-158277" }, "r486": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(d)(2)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=123459177&loc=SL121830611-158277" }, "r487": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(d)(3)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=123459177&loc=SL121830611-158277" }, "r488": { "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=122134291&loc=d3e330036-122817" }, "r489": { "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=122134291&loc=d3e330036-122817" }, "r49": { "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" }, "r490": { "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=122134291&loc=d3e330036-122817" }, "r491": { "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=122134291&loc=d3e330036-122817" }, "r492": { "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=122134291&loc=d3e330036-122817" }, "r493": { "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=122134291&loc=d3e330036-122817" }, "r494": { "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=122134291&loc=d3e330215-122817" }, "r495": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=123586238&loc=d3e38679-109324" }, "r496": { "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" }, "r497": { "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" }, "r498": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "740", "URI": "http://asc.fasb.org/topic&trid=2144680" }, "r499": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463" }, "r5": { "Name": "Accounting Standards Codification", "Paragraph": "5C", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(2)", "Topic": "205", "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=SL51721675-107760" }, "r50": { "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" }, "r500": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=79982066&loc=d3e1486-128463" }, "r501": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=123410050&loc=d3e5263-128473" }, "r502": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Subparagraph": "(e)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=123410050&loc=d3e5263-128473" }, "r503": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "25", "SubTopic": "30", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476" }, "r504": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "35", "SubTopic": "30", "Subparagraph": "(b)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=116859824&loc=d3e6819-128478" }, "r505": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(b)(1)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479" }, "r506": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(c)(1)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479" }, "r507": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "25", "SubTopic": "740", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=123403335&loc=d3e9972-128506" }, "r508": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "25", "SubTopic": "740", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=123403335&loc=d3e9979-128506" }, "r509": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=123454820&loc=SL4568447-111683" }, "r51": { "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" }, "r510": { "Name": "Accounting Standards Codification", "Paragraph": "16", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=123454820&loc=SL4568740-111683" }, "r511": { "Name": "Accounting Standards Codification", "Paragraph": "19", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=123454820&loc=SL4569616-111683" }, "r512": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=123454820&loc=SL4569643-111683" }, "r513": { "Name": "Accounting Standards Codification", "Paragraph": "21", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=123454820&loc=SL4613674-111683" }, "r514": { "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" }, "r515": { "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" }, "r516": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=d3e5614-111684" }, "r517": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(1)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684" }, "r518": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(2)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684" }, "r519": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684" }, "r52": { "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" }, "r520": { "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" }, "r521": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4582445-111684" }, "r522": { "Name": "Accounting Standards Codification", "Paragraph": "2AA", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "a", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=123419778&loc=SL6759068-111685" }, "r523": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(bb)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=123419778&loc=d3e5710-111685" }, "r524": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=123419778&loc=d3e5710-111685" }, "r525": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=123419778&loc=d3e5710-111685" }, "r526": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=123419778&loc=d3e5728-111685" }, "r527": { "Name": "Accounting Standards Codification", "Paragraph": "5A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=123419778&loc=SL6759159-111685" }, "r528": { "Name": "Accounting Standards Codification", "Paragraph": "4I", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=120409616&loc=SL4590271-111686" }, "r529": { "Name": "Accounting Standards Codification", "Paragraph": "4J", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=120409616&loc=SL4591551-111686" }, "r53": { "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" }, "r530": { "Name": "Accounting Standards Codification", "Paragraph": "4K", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=120409616&loc=SL4591552-111686" }, "r531": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=125515794&loc=SL5579240-113959" }, "r532": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959" }, "r533": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=125515794&loc=SL5580258-113959" }, "r534": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=125515794&loc=d3e41620-113959" }, "r535": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=125515794&loc=d3e41638-113959" }, "r536": { "Name": "Accounting Standards Codification", "Paragraph": "4A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=125515794&loc=SL5618551-113959" }, "r537": { "Name": "Accounting Standards Codification", "Paragraph": "4A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=125515794&loc=SL5618551-113959" }, "r538": { "Name": "Accounting Standards Codification", "Paragraph": "4A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)(1)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=125515794&loc=SL5618551-113959" }, "r539": { "Name": "Accounting Standards Codification", "Paragraph": "4B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=125515794&loc=SL5624163-113959" }, "r54": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.29,30)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r540": { "Name": "Accounting Standards Codification", "Paragraph": "4B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=125515794&loc=SL5624163-113959" }, "r541": { "Name": "Accounting Standards Codification", "Paragraph": "4B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=125515794&loc=SL5624163-113959" }, "r542": { "Name": "Accounting Standards Codification", "Paragraph": "4C", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=125515794&loc=SL5624171-113959" }, "r543": { "Name": "Accounting Standards Codification", "Paragraph": "4D", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=125515794&loc=SL5624177-113959" }, "r544": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=125515794&loc=d3e41641-113959" }, "r545": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=125515794&loc=d3e41678-113959" }, "r546": { "Name": "Accounting Standards Codification", "Paragraph": "6A", "Publisher": "FASB", "Section": "25", "SubTopic": "20", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=124256753&loc=SL5864739-113975" }, "r547": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "25", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121577467&loc=d3e76258-113986" }, "r548": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "40", "Subparagraph": "(f)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=123477628&loc=d3e90205-114008" }, "r549": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(a)(1)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011" }, "r55": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.29-30)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r550": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(a)(2)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011" }, "r551": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(a)(3)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011" }, "r552": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(b)(1)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011" }, "r553": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(b)(2)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011" }, "r554": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(c)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011" }, "r555": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(d)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011" }, "r556": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(e)(2)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011" }, "r557": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(e)(3)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011" }, "r558": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(e)(4)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011" }, "r559": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(f)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011" }, "r56": { "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" }, "r560": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "815", "URI": "http://asc.fasb.org/topic&trid=2229140" }, "r561": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258" }, "r562": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(bbb)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258" }, "r563": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258" }, "r564": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258" }, "r565": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258" }, "r566": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=123874694&loc=d3e19279-110258" }, "r567": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "60", "SubTopic": "10", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=7493716&loc=d3e21868-110260" }, "r568": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "820", "URI": "http://asc.fasb.org/topic&trid=2155941" }, "r569": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=123594938&loc=d3e13279-108611" }, "r57": { "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" }, "r570": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=123596393&loc=d3e14064-108612" }, "r571": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=123597120&loc=SL120254526-165497" }, "r572": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=123597120&loc=SL120254526-165497" }, "r573": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=123597120&loc=SL121967933-165497" }, "r574": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=123597120&loc=SL121967933-165497" }, "r575": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(c)(1)", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=123597120&loc=SL121967933-165497" }, "r576": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(c)(2)", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=123597120&loc=SL121967933-165497" }, "r577": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=123597120&loc=SL122642865-165497" }, "r578": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=123597120&loc=SL122642865-165497" }, "r579": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "230", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=123444420&loc=d3e33268-110906" }, "r58": { "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" }, "r580": { "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" }, "r581": { "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" }, "r582": { "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" }, "r583": { "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" }, "r584": { "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" }, "r585": { "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" }, "r586": { "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" }, "r587": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "835", "URI": "http://asc.fasb.org/extlink&oid=124435984&loc=d3e28541-108399" }, "r588": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "835", "URI": "http://asc.fasb.org/extlink&oid=124435984&loc=d3e28551-108399" }, "r589": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "835", "URI": "http://asc.fasb.org/extlink&oid=124435984&loc=d3e28555-108399" }, "r59": { "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" }, "r590": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "835", "URI": "http://asc.fasb.org/extlink&oid=124429444&loc=SL124452920-239629" }, "r591": { "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" }, "r592": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123341672&loc=SL77916155-209984" }, "r593": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "40", "SubTopic": "20", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123386189&loc=SL77918607-209975" }, "r594": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977" }, "r595": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977" }, "r596": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123391704&loc=SL77918643-209977" }, "r597": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123408670&loc=SL77918666-209980" }, "r598": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(3)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123408670&loc=SL77918673-209980" }, "r599": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123408670&loc=SL77918673-209980" }, "r6": { "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" }, "r60": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312" }, "r600": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980" }, "r601": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980" }, "r602": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(g)(1)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980" }, "r603": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(g)(2)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980" }, "r604": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(g)(3)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980" }, "r605": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(g)(4)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980" }, "r606": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980" }, "r607": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980" }, "r608": { "Name": "Accounting Standards Codification", "Paragraph": "53", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123414884&loc=SL77918982-209971" }, "r609": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "SubTopic": "20", "Topic": "842", "URI": "http://asc.fasb.org/subtopic&trid=77888251" }, "r61": { "Name": "Accounting Standards Codification", "Paragraph": "16", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=99393222&loc=SL20226024-175313" }, "r610": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "848", "URI": "http://asc.fasb.org/extlink&oid=122150657&loc=SL122150809-237846" }, "r611": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "850", "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864" }, "r612": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "850", "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864" }, "r613": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "850", "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39603-107864" }, "r614": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "852", "URI": "http://asc.fasb.org/extlink&oid=124437977&loc=d3e55792-112764" }, "r615": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "852", "URI": "http://asc.fasb.org/extlink&oid=124433192&loc=SL2890621-112765" }, "r616": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "852", "URI": "http://asc.fasb.org/extlink&oid=124433192&loc=SL2890621-112765" }, "r617": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "852", "URI": "http://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766" }, "r618": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "855", "URI": "http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662" }, "r619": { "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" }, "r62": { "Name": "Accounting Standards Codification", "Paragraph": "21", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=99393222&loc=SL20226049-175313" }, "r620": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "855", "URI": "http://asc.fasb.org/topic&trid=2122774" }, "r621": { "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" }, "r622": { "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" }, "r623": { "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" }, "r624": { "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" }, "r625": { "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" }, "r626": { "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" }, "r627": { "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" }, "r628": { "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" }, "r629": { "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" }, "r63": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=99393222&loc=SL20226052-175313" }, "r630": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "910", "URI": "http://asc.fasb.org/extlink&oid=123353855&loc=SL119991595-234733" }, "r631": { "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" }, "r632": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "926", "URI": "http://asc.fasb.org/extlink&oid=120154696&loc=d3e54445-107959" }, "r633": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "926", "URI": "http://asc.fasb.org/extlink&oid=120154821&loc=SL120154904-197079" }, "r634": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "926", "URI": "http://asc.fasb.org/extlink&oid=120154821&loc=SL120154904-197079" }, "r635": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "926", "URI": "http://asc.fasb.org/extlink&oid=120154821&loc=SL120154904-197079" }, "r636": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "340", "Topic": "928", "URI": "http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004" }, "r637": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "235", "Subparagraph": "(a)", "Topic": "932", "URI": "http://asc.fasb.org/extlink&oid=123377692&loc=d3e61929-109447" }, "r638": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "235", "Subparagraph": "(b)", "Topic": "932", "URI": "http://asc.fasb.org/extlink&oid=123377692&loc=d3e61929-109447" }, "r639": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "50", "SubTopic": "235", "Subparagraph": "(a)", "Topic": "932", "URI": "http://asc.fasb.org/extlink&oid=123377692&loc=d3e62059-109447" }, "r64": { "Name": "Accounting Standards Codification", "Paragraph": "10A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=SL7669646-108580" }, "r640": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "50", "SubTopic": "235", "Subparagraph": "(b)", "Topic": "932", "URI": "http://asc.fasb.org/extlink&oid=123377692&loc=d3e62059-109447" }, "r641": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "50", "SubTopic": "235", "Subparagraph": "(a)", "Topic": "932", "URI": "http://asc.fasb.org/extlink&oid=123377692&loc=d3e62395-109447" }, "r642": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "50", "SubTopic": "235", "Subparagraph": "(b)", "Topic": "932", "URI": "http://asc.fasb.org/extlink&oid=123377692&loc=d3e62395-109447" }, "r643": { "Name": "Accounting Standards Codification", "Paragraph": "33", "Publisher": "FASB", "Section": "50", "SubTopic": "235", "Subparagraph": "(a)", "Topic": "932", "URI": "http://asc.fasb.org/extlink&oid=123377692&loc=d3e62479-109447" }, "r644": { "Name": "Accounting Standards Codification", "Paragraph": "33", "Publisher": "FASB", "Section": "50", "SubTopic": "235", "Subparagraph": "(b)", "Topic": "932", "URI": "http://asc.fasb.org/extlink&oid=123377692&loc=d3e62479-109447" }, "r645": { "Name": "Accounting Standards Codification", "Paragraph": "35A", "Publisher": "FASB", "Section": "50", "SubTopic": "235", "Subparagraph": "(a)", "Topic": "932", "URI": "http://asc.fasb.org/extlink&oid=123377692&loc=SL6807758-109447" }, "r646": { "Name": "Accounting Standards Codification", "Paragraph": "35A", "Publisher": "FASB", "Section": "50", "SubTopic": "235", "Subparagraph": "(b)", "Topic": "932", "URI": "http://asc.fasb.org/extlink&oid=123377692&loc=SL6807758-109447" }, "r647": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "235", "Subparagraph": "(c)(1)", "Topic": "932", "URI": "http://asc.fasb.org/extlink&oid=123377692&loc=d3e61872-109447" }, "r648": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "235", "Subparagraph": "(c)(2)", "Topic": "932", "URI": "http://asc.fasb.org/extlink&oid=123377692&loc=d3e61872-109447" }, "r649": { "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" }, "r65": { "Name": "Accounting Standards Codification", "Paragraph": "10A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=SL7669646-108580" }, "r650": { "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" }, "r651": { "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" }, "r652": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(15)(2))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r653": { "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" }, "r654": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(22))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r655": { "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" }, "r656": { "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" }, "r657": { "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" }, "r658": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04(24))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r659": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04(25))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r66": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=d3e637-108580" }, "r660": { "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" }, "r661": { "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" }, "r662": { "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" }, "r663": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "360", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=124429447&loc=SL124453093-239630" }, "r664": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "470", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=123599511&loc=d3e64711-112823" }, "r665": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "825", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=123345438&loc=d3e61044-112788" }, "r666": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(15)(b)(2))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r667": { "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" }, "r668": { "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" }, "r669": { "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" }, "r67": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=d3e681-108580" }, "r670": { "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" }, "r671": { "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" }, "r672": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(24))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r673": { "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" }, "r674": { "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" }, "r675": { "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" }, "r676": { "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" }, "r677": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.7-04(20))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263" }, "r678": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.7-04(21))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263" }, "r679": { "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" }, "r68": { "Name": "Accounting Standards Codification", "Paragraph": "14A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=SL7669686-108580" }, "r680": { "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" }, "r681": { "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" }, "r682": { "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" }, "r683": { "Name": "Accounting Standards Codification", "Paragraph": "7A", "Publisher": "FASB", "Section": "50", "SubTopic": "40", "Subparagraph": "(d)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124506351&loc=SL117782755-158439" }, "r684": { "Name": "Accounting Standards Codification", "Paragraph": "13H", "Publisher": "FASB", "Section": "55", "SubTopic": "40", "Subparagraph": "(a)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124504033&loc=SL117783719-158441" }, "r685": { "Name": "Accounting Standards Codification", "Paragraph": "29F", "Publisher": "FASB", "Section": "55", "SubTopic": "40", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124504033&loc=SL117819544-158441" }, "r686": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(a)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641" }, "r687": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(b)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641" }, "r688": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(e)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641" }, "r689": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(f)(1)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641" }, "r69": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=SL7669619-108580" }, "r690": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(f)(2)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641" }, "r691": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(g)(1)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641" }, "r692": { "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=124501264&loc=SL117420844-207641" }, "r693": { "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=124501264&loc=SL117420844-207641" }, "r694": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(g)(2)(iii)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641" }, "r695": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(g)(2)(iv)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641" }, "r696": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(h)(1)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641" }, "r697": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(h)(2)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641" }, "r698": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.6-04.16)", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=120401414&loc=d3e603758-122996" }, "r699": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "405", "Topic": "954", "URI": "http://asc.fasb.org/extlink&oid=6491204&loc=d3e4869-115612" }, "r7": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=124098289&loc=d3e6676-107765" }, "r70": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=SL7669619-108580" }, "r700": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "440", "Subparagraph": "(a)", "Topic": "954", "URI": "http://asc.fasb.org/extlink&oid=6491277&loc=d3e6429-115629" }, "r701": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "360", "Subparagraph": "(d)", "Topic": "958", "URI": "http://asc.fasb.org/extlink&oid=120429125&loc=d3e99779-112916" }, "r702": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "360", "Topic": "958", "URI": "http://asc.fasb.org/extlink&oid=120429125&loc=d3e99893-112916" }, "r703": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "360", "Topic": "958", "URI": "http://asc.fasb.org/extlink&oid=120429125&loc=SL120174063-112916" }, "r704": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "360", "Subparagraph": "(SX 210.12-28(Footnote 4))", "Topic": "970", "URI": "http://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024" }, "r705": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "310", "Subparagraph": "(c)", "Topic": "976", "URI": "http://asc.fasb.org/extlink&oid=6497875&loc=d3e22274-108663" }, "r706": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "310", "Subparagraph": "(b)", "Topic": "978", "URI": "http://asc.fasb.org/extlink&oid=123360121&loc=d3e27327-108691" }, "r707": { "Name": "Exchange Act", "Number": "240", "Publisher": "SEC", "Section": "12", "Subsection": "b-2" }, "r708": { "Name": "Regulation S-K (SK)", "Number": "229", "Paragraph": "(a)", "Publisher": "SEC", "Section": "1402" }, "r709": { "Footnote": "4", "Name": "Regulation S-X (SX)", "Number": "210", "Publisher": "SEC", "Section": "12", "Subsection": "28" }, "r71": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=SL7669625-108580" }, "r710": { "Name": "Regulation S-X (SX)", "Number": "210", "Publisher": "SEC", "Section": "12", "Subsection": "09" }, "r711": { "Name": "Regulation S-X (SX)", "Number": "210", "Paragraph": "(a)", "Publisher": "SEC", "Section": "13", "Subparagraph": "(4)(i)", "Subsection": "01" }, "r712": { "Name": "Regulation S-X (SX)", "Number": "210", "Paragraph": "(a)", "Publisher": "SEC", "Section": "13", "Subparagraph": "(4)(iv)", "Subsection": "01" }, "r713": { "Name": "Regulation S-X (SX)", "Number": "210", "Paragraph": "(a)", "Publisher": "SEC", "Section": "13", "Subparagraph": "(4)(iv)", "Subsection": "02" }, "r714": { "Name": "Regulation S-X (SX)", "Number": "210", "Paragraph": "(m)", "Publisher": "SEC", "Section": "4", "Subparagraph": "(1)(iii)", "Subsection": "08" }, "r715": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "848" }, "r716": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(a)(1)", "Topic": "848" }, "r717": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(a)(2)", "Topic": "848" }, "r718": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(a)(3)(iii)(01)", "Topic": "848" }, "r719": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(a)(3)(iii)(03)", "Topic": "848" }, "r72": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=SL7669625-108580" }, "r73": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=d3e557-108580" }, "r74": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124431353&loc=SL116659661-227067" }, "r75": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124431353&loc=SL124442407-227067" }, "r76": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124431353&loc=SL124442411-227067" }, "r77": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124431353&loc=SL124452729-227067" }, "r78": { "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=123367319&loc=SL114868664-224227" }, "r79": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(22))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227" }, "r8": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=124098289&loc=d3e6676-107765" }, "r80": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(23))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227" }, "r81": { "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=123367319&loc=SL114868664-224227" }, "r82": { "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=123367319&loc=SL114868664-224227" }, "r83": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(5))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227" }, "r84": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(8))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227" }, "r85": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(b)(4))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227" }, "r86": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.18)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227" }, "r87": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.4)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227" }, "r88": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.8)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227" }, "r89": { "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=123367319&loc=SL114868664-224227" }, "r9": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(g)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=124098289&loc=d3e6676-107765" }, "r90": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=114868883&loc=SL114871943-224233" }, "r91": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3179-108585" }, "r92": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3179-108585" }, "r93": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3213-108585" }, "r94": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3213-108585" }, "r95": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3255-108585" }, "r96": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3255-108585" }, "r97": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585" }, "r98": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585" }, "r99": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585" } }, "version": "2.1" }