INCOME TAXES - Credits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2019	Dec. 30, 2018	Dec. 31, 2017
Tax credit carryovers
Operating Loss Carryforwards	$ 23,300
Long-term liabilities relating to uncertain tax positions	13,900
Unrecognized tax benefits	11,281	$ 13,822	$ 20,764
Gross accrued interest and penalties	2,600
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	5,400
Decreases in unrecognized tax benefits	2,200
Unrecognized Tax Benefits, Interest on Income Taxes Expense	(500)	(600)
Unrecognized Tax Benefits, Income Tax Penalties Expense	(200)	(300)
Net accrued interest and penalties	2,600	$ 3,300
State
Tax credit carryovers
Operating Loss Carryforwards	395,200
Amount of tax credit carryovers	$ 400