Leases (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 29, 2021	Jun. 30, 2020	Jun. 29, 2021	Jun. 30, 2020
Leases
Operating	$ 32,460	$ 32,915	$ 64,854	$ 65,955
Variable	19,212	11,160	35,693	26,988
Short-term	71	123	141	253
Total	$ 51,743	$ 44,198	100,688	93,196
Lessee Operating Lease Description
Operating cash flows from operating leases			68,559	57,775
Right-of-use assets obtained in exchange for new operating lease liabilities			$ 20,021	$ 32,329