Earnings Per Share - Reconciliation Of Earnings Per Share Basic And Diluted (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 29, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Jul. 01, 2018	Apr. 01, 2018	Sep. 29, 2019	Sep. 30, 2018
Numerator:
Net income	$ 86,563	$ 195,631	$ 127,945	$ 113,855	$ 242,338	$ 174,763	$ 410,139	$ 530,956
Denominator:
Basic weighted-average shares outstanding (in shares)	156,239			165,927			158,117	166,885
Effect of dilutive securities - employee stock compensation plan (in shares)	705			737			677	796
Diluted weighted-average shares outstanding (in shares)	156,944			166,664			158,794	167,681
Earnings per share:
Basic (in dollars per share)	$ 0.55			$ 0.69			$ 2.59	$ 3.18
Diluted (in dollars per share)	$ 0.55			$ 0.68			$ 2.58	$ 3.17