Shareholders' equity - Accumulated other comprehensive income (loss) into income expense (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]
Cost of goods sold	$ 1,259,954	$ 1,259,961	$ 1,212,282
Income from continuing operations before taxes	445,919	559,468	357,732
Taxes on income from continuing operations	(83,003)	(74,349)	(21,931)
Net of tax	362,916	485,119	335,801
Reclassification out of Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income (Loss) [Line Items]
Impact on income from continuing operations, net of tax	1,768	6,987	7,699
Reclassification out of Accumulated Other Comprehensive Income | Cash Flow Hedges | Foreign Exchange Forward
Accumulated Other Comprehensive Income (Loss) [Line Items]
Cost of goods sold	(3,532)	1,150	2,354
Income from continuing operations before taxes	(3,532)	1,150	2,354
Taxes on income from continuing operations	203	62	(240)
Net of tax	(3,329)	1,212	2,114
Reclassification out of Accumulated Other Comprehensive Income | Pension and Other Postretirement Benefit Plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Income from continuing operations before taxes	6,643	7,531	7,286
Taxes on income from continuing operations	(1,546)	(1,756)	(1,701)
Net of tax	5,097	5,775	5,585
Actuarial losses	7,660	8,543	7,253
Prior-service credits	$ (1,017)	$ (1,012)	$ 33