LEASES - Balance Sheet (Details) - USD ($) $ in Thousands	Jul. 03, 2021	Jan. 02, 2021
Assets:
Operating lease assets	$ 51,672	$ 34,090
Finance lease assets	10,311
Total lease assets	61,983
Current
Operating lease liabilities	11,142	8,247
Finance lease liabilities	1,978
Non-current
Operating lease liabilities	50,881	$ 36,546
Finance lease liabilities	8,392
Total lease liabilities	$ 72,393
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Property and equipment, net
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:LongTermDebtCurrent
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Long-term debt, net of current portion