Income Taxes - Earnings Before Income Taxes and Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Earnings before income taxes:
United States	$ 1,075,305	$ 714,732	$ 689,278
Foreign	183,323	102,938	125,818
Pre-tax Income	1,258,628	817,670	815,096
Income tax expense:
Partnership UBT	12,458	7,838	5,996
Corporate subsidiaries:
Federal	899	2,855	1,457
State and local	1,345	914	931
Foreign	51,764	35,906	34,327
Current tax expense	66,466	47,513	42,711
Deferred tax	(1,323)	(18,462)	(3,072)
Income tax expense	$ 65,143	$ 29,051	$ 39,639