LEASES - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	6 Months Ended
	Jul. 04, 2021	Jun. 28, 2020
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 4,517	$ 3,774
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 1,163	$ 51,682
Weighted-average remaining lease term of operating leases (in years)	10 years	11 years
Weighted-average discount rate of operating leases	5.31%	5.24%