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Debt and Credit Facility (5.875% Senior Notes) - Additional Information (Details) - Senior Notes - Senior Notes Due 2024 - USD ($) |  | 12 Months Ended |
--- | --- | --- | ---
Dec. 18, 2019 | Dec. 31, 2019 | May 15, 2016
Debt Instrument |  |  |
Debt principal amount |  |  | $ 375,000,000.0
Debt instrument contractual rate (percent) |  | 5.875% | 5.875%
Debt issuance, percentage of principal amount |  |  | 100.00%
Redemption price as percentage of principal (percent) | 104.406% |  |
Effective interest rate (percent) |  | 6.10% |
Interest expense |  | $ 22,000,000.0 |

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