Fair Value Measurements (Reconciliation of Beginning and Ending Level 3 Net Liabilities) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 03, 2021	Oct. 04, 2020	Oct. 03, 2021	Oct. 04, 2020	Jan. 03, 2021
Fair Value Disclosures [Abstract]
Balance beginning of period	$ (3,334)	$ (13,726)	$ (2,953)	$ (35,481)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases	33,431	0	33,431	0
Payments	615	(144)	711	10,165
Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers out of Level 3	0	13,692		13,692
Change in fair value (included within selling, general and administrative expenses)	(1,075)	(2,639)	(1,552)	8,807
Balance end of period	(37,225)	$ (2,817)	(37,225)	$ (2,817)
Business Combination, Contingent Consideration, Liability	$ (37,200)		$ (37,200)		$ (3,000)