Weighted-Average Shares - Calculation of Weighted-Average Shares (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2020	Sep. 29, 2019	Sep. 27, 2020	Sep. 29, 2019
Earnings Per Share [Abstract]
Basic weighted-average common shares outstanding (in shares)	173,943	170,744	172,881	171,053
Effect of dilutive equity awards (in shares)	3,195	3,705	3,157	4,111
Weighted-average common and common-equivalent shares outstanding (in shares)	177,138	174,449	176,038	175,164