Income Taxes Schedule of Provision For Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 29, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jul. 01, 2012	Apr. 01, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
U.S. Federal									$ 30,989	$ 34,666	$ 27,415
State									3,751	4,555	3,319
Foreign									11,224	6,097	6,760
Current, Total									45,964	45,318	37,494
U.S. Federal									(6,741)	(2,069)	(3,151)
State									(1,164)	(588)	(713)
Foreign									(294)	82	(788)
Deferred, Total									(8,199)	(2,575)	(4,652)
Provision for income taxes	$ 11,712	$ 10,364	$ 7,144	$ 8,545	$ 12,325	$ 9,920	$ 9,933	$ 10,565	$ 37,765	$ 42,743	$ 32,842