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Payroll Support Programs (Details) | 12 Months Ended
--- | ---
Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) item | Dec. 31, 2020 USD ($) item
Unusual or Infrequent Item, or Both [Line Items] |  |  |  |
Proceeds from payroll grant |  |  | $ 422,700,000 |
Grants received | $ 0 | $ 0 |  |
PSP agreement |  |  |  |
Unusual or Infrequent Item, or Both [Line Items] |  |  |  |
Number of payroll support program agreements | item |  |  | 3 | 3
Unsecured term loan | PSP agreement |  |  |  |
Unusual or Infrequent Item, or Both [Line Items] |  |  |  |
Debt term | 10 years |  |  |
Treasury Loan Agreement |  |  |  |
Unusual or Infrequent Item, or Both [Line Items] |  |  |  |
Proceeds received |  |  |  | $ 60,000,000.0

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- Definition Period between issuance and maturity of long-term debt, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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- Definition Cash received from grantors during the current period related to operating activities. This element represents receipts from a guarantor for the amount of guarantee provided. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-25 + Details
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- Definition The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 14 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-14 + Details
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