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Income Taxes (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Income Tax Contingency [Line Items] |  |  |  |
Income tax expense | $ 4,223 | $ 10,705 | $ (6,165) | $ 22,145
Discrete income tax benefit | $ 6,724 | $ 3,826 | $ 55,102 | $ 10,511
Effective income tax rate | (9.30%) | 62.50% | (12.70%) | 22.60%
(Loss) income before income taxes | $ (45,241) | $ 17,130 | $ 48,562 | $ 98,181
Deferred compensation plan | 88,965 | 50 | 89,327 | (115)
Deferred Compensation Arrangement with Individual, by Type of Compensation, Pension and Other Postretirement Benefits | Nonqualified Plan |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Deferred compensation plan | 88,965 | $ 50 | 89,327 | $ (115)
Deferred Compensation Arrangement with Individual, by Type of Compensation, Pension and Other Postretirement Benefits | DCP, One-Time Inducement | Nonqualified Plan |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Deferred compensation plan | $ 90,721 |  | $ 90,721 |

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