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Retirement Plans - Narrative (Details) - USD ($) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021 | Dec. 31, 2021
Defined Contribution Plan Disclosure [Line Items] |  |  |  |  |
Deferred compensation plan (income) expense | $ (12,159,000) | $ 195,000 | $ (17,297,000) | $ 362,000 |
Nonqualified Plan | Deferred Compensation Arrangement with Individual, by Type of Compensation, Pension and Other Postretirement Benefits |  |  |  |  |
Defined Contribution Plan Disclosure [Line Items] |  |  |  |  |
Deferred compensation plan (income) expense | $ (12,159,000) | $ 195,000 | (17,297,000) | 362,000 |
DCP participant deferrals |  |  | 3,108,000 | 1,493,000 |
Contributions by employer |  |  | $ 0 | $ 0 |
Nonqualified Plan | Deferred Compensation Arrangement with Individual, by Type of Compensation, Pension and Other Postretirement Benefits | Class B Common Stock |  |  |  |  |
Defined Contribution Plan Disclosure [Line Items] |  |  |  |  |
Phantom shares issuable (in shares) | 21,570,161 |  | 21,570,161 |  | 25,384,449

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