Share-Based Compensation - Narrative (Details) - USD ($)		12 Months Ended
	Mar. 14, 2022	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense		$ 28,784,000	$ 33,947,000	$ 34,798,000
Tax benefit from share-based compensation		7,000,000.0	$ 8,300,000	$ 8,200,000
Nonvested awards, total compensation cost not yet recognized		$ 89,000,000
Nonvested awards, total compensation cost not yet recognized, period for recognition		6 years
Restricted stock granted in period (in shares)		921,107	876,296	2,314,542
Restricted stock granted in period, weighted average grant date fair value (usd per share)		$ 37.87	$ 34.20	$ 32.89
Restricted stock, vested in period, total fair value		$ 36,000,000.0	$ 49,500,000	$ 52,000,000.0
Class B
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized under stock incentive plan (in shares)		36,100,000
Number of shares available for grant under stock incentive plan (in shares)		3,100,000
Class B Common Stock Bonus
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award requisite service period		3 years
Restricted stock granted in period (in shares)		378,107
Class B Common Stock Bonus | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award requisite service period		3 years
Class B Common Stock Bonus | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award requisite service period		10 years
Class B Common Stock Key Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award requisite service period		10 years
Restricted stock granted in period (in shares)		449,500
U.K. Subsidiary Stock Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		5 years
Restricted stock granted in period (in shares)		93,500
Compensation and related expense		$ 0	$ 0	$ 700,000
U.K. Subsidiary Stock Plan | Class B
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant under stock incentive plan (in shares)		0
Restricted stock granted in period (in shares)	1,183,066
Restricted stock awarded in period (in shares)	318,807
U.K. Subsidiary Stock Plan | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		3 years
U.K. Subsidiary Stock Plan | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		5 years