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Retirement Plans - Narrative (Details) - Deferred Compensation Arrangement with Individual, by Type of Compensation, Pension and Other Postretirement Benefits - USD ($) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Dec. 31, 2023
Defined Contribution Plan Disclosure [Line Items] |  |  |  |  |
Deferred compensation plan expense | $ 883,000 | $ 3,777,000 | $ 6,682,000 | $ 7,923,000 |
DCP participant deferrals | 43,000 | 118,000 | 101,000 | 1,651,000 |
Contributions by employer | $ 0 | $ 0 | $ 0 | $ 0 |
Class B Common Stock |  |  |  |  |
Defined Contribution Plan Disclosure [Line Items] |  |  |  |  |
Phantom shares issuable (in shares) | 14,929,874 |  | 14,929,874 |  | 17,364,980
Shares reserved for future issuance (in shares) | 4,382,666 |  | 4,382,666 |  |

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