Net Sales by Major Geographic Region (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017	Jul. 02, 2016
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	[1]	$ 579,343	$ 580,456	$ 1,109,640	$ 1,096,811
United States and Canada
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales		394,004	381,369	754,105	707,310
Asia
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales		44,873	43,796	87,565	81,590
Europe and Middle East
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales		115,063	134,484	223,767	271,088
Latin America
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales		25,403	20,807	44,203	36,823
Total International
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales		$ 185,339	$ 199,087	$ 355,535	$ 389,501

[1] Non-operating expenses are not allocated to the operating segments. Non-operating expenses consist of interest expense and deferred financing amortization, foreign exchange gains and losses and other income and expense items outside of income from operations.