Income taxes - Components of provision for income taxes from continuing operations (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Current:
Federal	$ 51,717	$ 32,798	$ 134,336
State	8,266	8,747	16,970
Non-U.S.	30,408	56,442	35,399
Deferred:
Federal	(24,396)	(27,528)	(85,272)
State	5,439	10,116	(16,933)
Non-U.S.	5,006	2,428	(10,151)
Provision for income taxes from continuing operations	$ 76,440	$ 83,003	$ 74,349