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v3.20.4

Long-Term Debt - WRF Credit Facilities (Details) - WRF |  | 12 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 20, 2019 USD ($) | Dec. 31, 2020 | Nov. 27, 2020 USD ($) | Apr. 10, 2020
Debt Instrument [Line Items] |  |  |  |
Maximum consolidated senior secured net leverage ratio | 3.75 |  |  |
WRF Term Loan, due 2024 | Secured Debt |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Required quarterly payments | $ 12,500,000 |  |  |
WRF Term Loan, due 2024 | Secured Debt | LIBOR |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Basis spread on variable rate | 1.75% |  |  |
WRF Revolver, due 2024 | Revolving Credit Facility |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Fee required for unborrowed amounts, percentage per annum | 0.25% |  |  |
WRF Revolver, due 2024 | Revolving Credit Facility | LIBOR |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Basis spread on variable rate | 1.75% |  |  |
WRF Senior Secured Credit Facilities | LIBOR |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Basis spread on variable rate |  | 1.75% |  |
WRF Senior Secured Credit Facilities | Line of Credit | During Financial Covenant Relief Period |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Minimum liquidity required to be maintained at all times during Financial Covenant Relief Period |  |  | $ 325,000,000.0 |
WRF Senior Secured Credit Facilities | Line of Credit | First Fiscal Quarter of the Financial Covenant Increase Period |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Maximum consolidated first lien net leverage ratio |  |  | 4.50 |
WRF Senior Secured Credit Facilities | Line of Credit | Second Fiscal Quarter of the Financial Covenant Increase Period |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Maximum consolidated first lien net leverage ratio |  |  | 4.25 |
WRF Senior Secured Credit Facilities | Line of Credit | Third Fiscal Quarter of the Financial Covenant Increase Period |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Maximum consolidated first lien net leverage ratio |  |  | 4.00 |
WRF Senior Secured Credit Facilities | Line of Credit | Fourth Fiscal Quarter and Thereafter of the Financial Covenant Increase Period |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Maximum consolidated first lien net leverage ratio |  |  |  | 3.75

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- Definition Amount of the required periodic payments applied to principal. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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