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Long-Term Debt - Credit Agreement (Details) - USD ($) $ in Thousands |  |  |  |  | 12 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Mar. 31, 2021 | Dec. 31, 2020 | Jan. 31, 2020 | Feb. 13, 2019 | Dec. 31, 2021 | Dec. 31, 2020 | Jun. 09, 2021
Debt Instrument [Line Items] |  |  |  |  |  |  |
Write off of unamortized deferred financing costs |  |  |  |  | $ 972 | $ 197 |
Loss on extinguishment of debt |  |  |  |  | 4,936 |  |
Voluntary payment | $ 20,000 | $ 30,000 | $ 20,000 | $ 30,000 |  |  |
Term loan facility |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Unamortized discount on issuance of debt |  | $ 4,234 |  |  | 499 | $ 4,234 |
Credit Agreement |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Unamortized discount on issuance of debt |  |  |  |  | 563 |  |
Deferred financing cost |  |  |  |  | 1,409 |  |
Write off of unamortized deferred financing costs |  |  |  |  | 972 |  |
Write off of unamortized debt discount |  |  |  |  | 3,964 |  |
Loss on extinguishment of debt |  |  |  |  | $ 4,936 |  |
Leverage ratio |  |  |  |  | 3.50% |  |
Interest coverage ratio |  |  |  |  | 3.00% |  |
Credit Agreement | Maximum |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Increase in borrowing ability |  |  |  |  |  |  | $ 175,000
Senior secured term loan |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  |  | 225,000
Senior secured term loan | Maximum | LIBOR | Leverage ratio one |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate margin (as a percent) |  |  |  |  | 2.00% |  |
Senior secured term loan | Minimum | LIBOR | Leverage ratio one |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate margin (as a percent) |  |  |  |  | 1.375% |  |
Revolving credit facility |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  |  | 100,000
Revolving credit facility | NYFRB |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate margin (as a percent) |  |  |  |  | 0.50% |  |
Revolving credit facility | One month London Interbank Offered Rate |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate margin (as a percent) |  |  |  |  | 1.00% |  |
Revolving credit facility | Maximum |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Unused commitment fee (as a percent) |  |  |  |  | 0.30% |  |
Revolving credit facility | Maximum | LIBOR | Leverage ratio one |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate margin (as a percent) |  |  |  |  | 1.00% |  |
Revolving credit facility | Maximum | LIBOR | Leverage ratio two |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate margin (as a percent) |  |  |  |  | 1.00% |  |
Revolving credit facility | Minimum |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Unused commitment fee (as a percent) |  |  |  |  | 0.15% |  |
Revolving credit facility | Minimum | LIBOR | Leverage ratio one |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate margin (as a percent) |  |  |  |  | 0.375% |  |
Revolving credit facility | Minimum | LIBOR | Leverage ratio two |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate margin (as a percent) |  |  |  |  | 1.00% |  |
Letter of credit |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  |  | 10,000
Letter of credit | Term loan facility |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Percentage of net cash proceeds of certain asset sales, certain insurance or condemnation events, requirement for additional principal prepayments |  |  |  |  | 100.00% |  |
Percentage of excess cash flow paid as additional principal prepayments |  |  |  |  | 50.00% |  |
Reduced percentage of excess cash flow paid as additional principal prepayments upon achievement of certain leverage ratio thresholds, one |  |  |  |  | 0.00% |  |
Letter of credit | Term loan facility | Maximum |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Period before Fiscal Year End for Additional Principal Prepayments of Debt from Excess Cash Flow |  |  |  |  | 150 days |  |
Swing line loan |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  |  | $ 15,000

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