INCOME TAXES - Narrative (Details) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 25, 2020	Dec. 30, 2020
Income Tax Contingency [Line Items]
Effective income tax rate reconciliation (in percentage)	105.50%	(8.80%)
Ownership percentage, weighted average	93.00%	91.60%
Deferred tax asset recognized as a result of investment in partnership	$ 10,204,000
Deferred tax asset related to additional tax basis	300,000
Deferred tax assets, valuation allowance	$ 1,260
Percentage of tax benefits due to equity owners	85.00%
Percentage of tax benefits expected to be realized	15.00%
Consolidated Entity, Ownership By Parent, LLC Units Acquired	29,600
Establishment of liabilities under tax receivable agreement	$ 1,094,000	$ 310,000
Tax receivable agreement payments to related parties	0	$ 6,569,000
Liabilities under tax receivable agreement	234,048,000		$ 232,954,000
Foreign Tax Credit
Income Tax Contingency [Line Items]
Deferred tax assets, valuation allowance	$ 0
Limited Liability Company
Income Tax Contingency [Line Items]
Units acquired during the period (in shares)	385,449
Deferred tax asset, investment in partnership	$ 142,867,000