Segment Reporting - Reconciliation of Total Segment Profit to Operating Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 03, 2021	Jun. 27, 2020	Jul. 03, 2021	Jun. 27, 2020
Segment Reporting [Abstract]
Total Segment Profit	$ 165,170	$ 117,884	$ 302,387	$ 221,353
Amortization	11,902	13,216	23,773	29,427
Unallocated general and administrative expenses	14,379	9,956	25,747	16,470
Operating income	138,889	94,712	252,867	175,456
Interest expense	10,697	13,005	22,349	23,564
Interest income	(54)	(213)	(125)	(534)
Other expense (income), net	23,560	(477)	27,890	401
Income before income tax expense	$ 104,686	$ 82,397	$ 202,753	$ 152,025