INCOME TAXES - Narrative (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 28, 2019	Oct. 28, 2018
Valuation Allowance [Line Items]
Effective tax rate (as a percent)	40.90%
Effective tax rate, after unrecognized tax benefits and state income taxes (as a percent)	20.40%
Increase in tax reserves	$ 6,900
Liability for unrecognized tax benefits	11,900
Payable pursuant to a tax receivable agreement	24,760	$ 0
Canadian Jurisdiction
Valuation Allowance [Line Items]
Valuation allowance	$ 21,400