Total Net Revenues and Total Net Property, Plant and Equipment by Geographic Region (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 29, 2014	Jun. 30, 2013	Jun. 29, 2014	Jun. 30, 2013	Dec. 31, 2013
Segment Reporting Information [Line Items]
Net revenues	$ 468,105	$ 420,059	$ 906,651	$ 831,936
Property, plant and equipment, net	343,408		343,408		325,900
United States
Segment Reporting Information [Line Items]
Net revenues	228,349	210,833	444,810	418,347
Property, plant and equipment, net	198,266		198,266		203,985
Other Americas
Segment Reporting Information [Line Items]
Net revenues	15,188	14,527	29,958	28,678
Property, plant and equipment, net	12,160		12,160		12,350
Germany
Segment Reporting Information [Line Items]
Net revenues	35,264	32,708	69,254	66,459
Property, plant and equipment, net	12,129		12,129		12,135
Other Europe
Segment Reporting Information [Line Items]
Net revenues	138,929	108,068	273,713	214,754
Property, plant and equipment, net	80,075		80,075		61,891
All Other
Segment Reporting Information [Line Items]
Net revenues	50,375	53,923	88,916	103,698
Property, plant and equipment, net	$ 40,778		$ 40,778		$ 35,539