RELATED PARTY TRANSACTIONS (Details)	3 Months Ended
Mar. 25, 2020 USD ($)	Mar. 27, 2019 USD ($) renewal_option	Dec. 25, 2019 USD ($)
Related Party Transaction [Line Items]
Percentage of tax benefits due to equity owners	85.00%
Tax receivable agreement payments to related parties	$ 6,569,000	$ 707,000
Distributions paid to non-controlling interest holders	305,000	$ 109,000
Tax distributions payable to non-controlling interest holders	0		$ 0
Subsidiary to Affiliated Entity
Related Party Transaction [Line Items]
Number of renewal terms \| renewal_option		5
Renewal option period		5 years
Mobo Systems, Inc. [Member] \| Board of Directors Chairman
Related Party Transaction [Line Items]
Amounts due to related parties, current	0		0
Expenses from transactions with related party	52,000	$ 38,000
Concession Income \| Subsidiary to Affiliated Entity
Related Party Transaction [Line Items]
Due from related parties, current	27,000		47,000
Revenue from related parties	22,000	66,000
Rent Expense \| Madison Square Park Conservancy
Related Party Transaction [Line Items]
Amounts due to related parties, current	0		53,000
Expenses from transactions with related party	219,000	278,000
Mobo Systems, Inc. \| Board of Directors Chairman
Related Party Transaction [Line Items]
Amounts due to related parties, current	0		$ 0
Expenses from transactions with related party	$ 571,000	$ 266,000

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