Earnings Per Share - Schedule of Reconciliation of the Numerators and Denominators Used in the Basic and Diluted Per-Share Computations (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Class A common stock
Income available to stockholders (Basic EPS:)
Allocated net income (numerator)	$ 129,967	$ 83,623	$ 332,389	$ 231,171
Weighted shares (denominator) (in shares)	46,189,037	46,189,025	46,188,962	46,188,878
Per-share amount (in dollars per share)	$ 2.81	$ 1.81	$ 7.20	$ 5.00
Dilutive effect of stock-based awards
Allocated net income (numerator)	$ 0	$ 0	$ 0	$ 0
Weighted shares (denominator) (in shares)	9,532	6,586	8,893	8,007
Assumed conversion of Class B shares
Allocated net income (numerator)	$ 1,073	$ 690	$ 2,744	$ 1,908
Weighted shares (denominator) (in shares)	6,100,800	6,100,800	6,100,800	6,100,800
Income available to stockholders on equivalent shares (Diluted EPS:)
Allocated net income (numerator)	$ 131,040	$ 84,313	$ 335,133	$ 233,079
Weighted shares (denominator) (in shares)	52,299,369	52,296,411	52,298,655	52,297,685
Per-share amount (in dollars per share)	$ 2.51	$ 1.61	$ 6.41	$ 4.46
Class B common stock
Income available to stockholders (Basic EPS:)
Allocated net income (numerator)	$ 1,073	$ 690	$ 2,744	$ 1,908
Weighted shares (denominator) (in shares)	2,542	2,542	2,542	2,542
Per-share amount (in dollars per share)	$ 422	$ 272	$ 1,079	$ 751
Income available to stockholders on equivalent shares (Diluted EPS:)
Allocated net income (numerator)	$ 1,073	$ 690	$ 2,744	$ 1,908
Weighted shares (denominator) (in shares)	2,542	2,542	2,542	2,542
Per-share amount (in dollars per share)	$ 422	$ 272	$ 1,079	$ 751