Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 27, 2020	Jun. 29, 2019	Jun. 27, 2020	Jun. 29, 2019
Earnings Per Share, Basic and Diluted [Abstract]
Net income	$ 131,288	$ 107,235	$ 255,276	$ 227,790
Weighted average common shares used to calculate basic net income per share	273,432	273,159	273,488	273,155
Stock-based awards	5,648	7,895	5,719	7,722
Weighted average common shares used to calculate diluted net income per share (in shares)	279,080	281,054	279,207	280,877
Net income per share - basic (usd per share)	$ 0.48	$ 0.39	$ 0.93	$ 0.83
Net income per share - diluted (usd per share)	$ 0.47	$ 0.38	$ 0.91	$ 0.81