Operating Segments and Geographic Information - Schedule of Revenue from External Customers and Long-Lived Assets Based on Physical Location (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Oct. 01, 2017	Jul. 02, 2017	Apr. 02, 2017	Dec. 31, 2016	Oct. 02, 2016	Jul. 03, 2016	Apr. 03, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 604,884	$ 621,745	$ 610,633	$ 551,381	$ 612,435	$ 601,109	$ 601,631	$ 541,497	$ 2,388,643	$ 2,356,672	$ 2,309,222
Percent of total revenues									100.00%	100.00%	100.00%
Long-lived assets	402,529				348,068				$ 402,529	$ 348,068	$ 378,163
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									$ 1,265,455	$ 1,283,925	$ 1,270,467
Percent of total revenues									53.00%	55.00%	55.00%
Long-lived assets	231,938				193,263				$ 231,938	$ 193,263	$ 188,032
Canada [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									$ 167,605	$ 159,985	$ 170,522
Percent of total revenues									7.00%	7.00%	7.00%
Long-lived assets	33,806				31,278				$ 33,806	$ 31,278	$ 27,315
China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									$ 121,600	$ 114,605	$ 114,863
Percent of total revenues									5.00%	5.00%	5.00%
Long-lived assets	34,774				30,487				$ 34,774	$ 30,487	$ 62,794
Germany [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									$ 113,990	$ 104,214	$ 103,106
Percent of total revenues									5.00%	4.00%	4.00%
Long-lived assets	38,029				32,386				$ 38,029	$ 32,386	$ 35,588
All Other [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									$ 719,993	$ 693,943	$ 650,264
Percent of total revenues									30.00%	29.00%	29.00%
Long-lived assets	$ 63,982				$ 60,654				$ 63,982	$ 60,654	$ 64,434