Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 26, 2020	Jun. 27, 2020	Mar. 28, 2020	Sep. 28, 2019	Jun. 29, 2019	Mar. 30, 2019	Sep. 26, 2020	Sep. 28, 2019
Earnings Per Share, Basic [Abstract]
Net income	$ 190,610	$ 338,678	$ 83,777	$ 122,133	$ 219,210	$ 76,832	$ 613,065	$ 418,175
Weighted average number of shares outstanding, basic	116,339			118,956			116,330	120,180
Net income per share – basic	$ 1.64			$ 1.03			$ 5.27	$ 3.48
Earnings Per Share, Diluted [Abstract]
Dilutive stock options and restricted stock units outstanding, income	$ 0			$ 0			$ 0	$ 0
Dilutive stock options and restricted stock units outstanding, per share (in shares)	1,406			1,102			1,000	1,059
Dilutive stock options and restricted stock units outstanding, per share (in dollars per share)	$ (0.02)			$ (0.01)			$ (0.04)	$ (0.03)
Net income	$ 190,610	$ 338,678	$ 83,777	$ 122,133	$ 219,210	$ 76,832	$ 613,065	$ 418,175
Weighted average number of shares outstanding, diluted	117,745			120,058			117,330	121,239
Net income per share, diluted (in dollars per share)	$ 1.62			$ 1.02			$ 5.23	$ 3.45
Antidilutive securities excluded from computation of earnings per share, amount	100			300			100	400