Income taxes - Schedule of Current and Deferred Income Tax (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Current:
U.S. federal tax	$ 22,249	$ 6,967	$ 18,862
State and local tax	7,459	2,137	8,068
Non-U.S. operations	1,250	937	1,129
Total Current	30,958	10,041	28,059
Deferred:
U.S. federal tax	2,323	5,207	(10,420)
State and local tax	1,262	919	(4,538)
Non-U.S. operations	(33)	331	343
Total Deferred	3,552	6,457	(14,615)
Total income taxes	$ 34,510	$ 16,498	$ 13,444