Income taxes - Components of provision for income taxes from continuing operations (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current:
Federal	$ 134,336	$ 11,148	$ 19,374
State	16,970	9,644	8,220
Non-U.S.	35,399	35,042	23,690
Deferred:
Federal	(85,272)	(9,475)	(2,041)
State	(16,933)	(13,734)	(28,277)
Non-U.S.	(10,151)	(10,694)	(143,044)
Provision for income taxes from continuing operations	$ 74,349	$ 21,931	$ (122,078)