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Long-Term Debt - Additional Information (Details) | Oct. 24, 2019 USD ($) covenant | Dec. 31, 2020 USD ($)
--- | --- | ---
Debt Instrument [Line Items] |  |
2021 |  | $ 15,100,000
2022 |  | 15,000,000.0
2023 |  | 15,000,000.0
2024 |  | 240,200,000
2025 |  | 20,000.00
Thereafter |  | 0
the Credit Agreement | Bank revolving credit facility |  |
Debt Instrument [Line Items] |  |
Number of covenants | covenant | 2 |
the Credit Agreement | Line of Credit | Bank revolving credit facility |  |
Debt Instrument [Line Items] |  |
Aggregate commitments | $ 650,000,000.0 |
Maximum amount of aggregate commitments | 200,000,000.0 |
Fair value of amount outstanding |  | 285,200,000
the Credit Agreement | Term Facility | Bank revolving credit facility |  |
Debt Instrument [Line Items] |  |
Aggregate commitments | $ 300,000,000.0 |
Interest rate during period | 5.00% |
Expiration period | 5 years |
Fair value of amount outstanding |  | $ 280,200,000
Interest rate at period end |  | 1.90%
the Credit Agreement | Standby Letters of Credit | Bank revolving credit facility |  |
Debt Instrument [Line Items] |  |
Aggregate commitments | $ 350,000,000.0 |
Expiration period | 5 years |
Fair value of amount outstanding |  | $ 5,000,000.0
Interest rate at period end |  | 4.00%
Amount of capacity |  | $ 2,200,000
Available borrowings |  | $ 176,700,000

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