Net Income per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 28, 2024	Sep. 30, 2023	Sep. 28, 2024	Sep. 30, 2023
Net Income per Share
Net income attributable to shareholders	$ 100,567	$ 198,659	$ 292,866	$ 708,968
Weighted-average shares outstanding - basic	53,010	55,597	53,476	57,021
Net effect of various dilutive stock-based compensation awards	465	701	523	694
Weighted-average shares outstanding - diluted	53,475	56,298	53,999	57,715
Net income per share:
Basic	$ 1.90	$ 3.57	$ 5.48	$ 12.43
Diluted	$ 1.88	$ 3.53	$ 5.42	$ 12.28
Equity awards excluded from diluted net income per share as their effect would have been anti-dilutive	0	0	21	43