Segment Reporting - Reconciliation of Total Segment Profit to Operating Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019
Segment Reporting [Abstract]
Total Segment Profit	$ 103,469	$ 94,121
Amortization	16,211	18,657
Unallocated general and administrative expenses	6,514	27,973
Operating income	80,744	47,491
Interest expense	10,559	10,884
Interest income	(321)	(1,225)
Other expense (income), net	878	(248)
Income before income tax expense	$ 69,628	$ 38,080