Condensed Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 04, 2015	Jun. 28, 2014	Jul. 04, 2015	Jun. 28, 2014
Consolidated Statement of Comprehensive Income
Products, sales to affiliates	$ 212,464	$ 179,031	$ 424,170	$ 375,017
Other comprehensive income (loss), income tax benefit	$ 682	$ 725	$ 824	$ 10,388