Stockholders' Equity Rollforward (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 27, 2015	Sep. 28, 2014
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period	$ 1,717,576	$ 1,929,486
Comprehensive Income	43,197	87,707
Dividends	(55,414)	(55,012)
Repurchases of common stock	(1,078,404)	(291,240)
Share-based compensation	18,784	25,208
Exercises of stock options	17,996	24,839
Vesting of restricted shares	(7,323)	(3,666)
Tax benefit from share-based compensation	48,897	11,254
Other	148	139
Balance at end of period	$ 705,457	$ 1,728,715