Business segments and other information - total net revenues and total net property, plant and equipment by geographic region (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 25, 2016	Jun. 26, 2016	Mar. 27, 2016	Dec. 31, 2015	Sep. 27, 2015	Jun. 28, 2015	Mar. 29, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Net revenues	$ 513,933	$ 455,648	$ 473,553	$ 424,893	$ 484,501	$ 443,714	$ 452,045	$ 429,430	$ 1,868,027	$ 1,809,690	$ 1,839,832
Property, plant and equipment, net	302,899				316,123				302,899	316,123	317,435
United States
Segment Reporting Information [Line Items]
Net revenues									1,018,786	967,819	916,619
Property, plant and equipment, net	167,167				178,895				167,167	178,895	174,893
Other Americas
Segment Reporting Information [Line Items]
Net revenues									56,339	56,500	60,736
Europe
Segment Reporting Information [Line Items]
Net revenues									567,320	570,672	664,982
Malaysia
Segment Reporting Information [Line Items]
Property, plant and equipment, net	31,415				33,777				31,415	33,777	36,427
Ireland
Segment Reporting Information [Line Items]
Property, plant and equipment, net	36,569				33,219				36,569	33,219	29,746
Czech Republic
Segment Reporting Information [Line Items]
Property, plant and equipment, net	30,843				32,305				30,843	32,305	35,655
All other
Segment Reporting Information [Line Items]
Net revenues									225,582	214,699	197,495
Property, plant and equipment, net	$ 36,905				$ 37,927				$ 36,905	$ 37,927	$ 40,714