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NON-CONTROLLING INTERESTS NON-CONTROLLING INTERESTS - Redemption of LLC Interests (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 23, 2020	Sep. 25, 2019	Sep. 23, 2020	Sep. 25, 2019
Limited Liability Company
Class of Stock [Line Items]
Number of units redeemed (in shares)	5,000	231,599	33,195	1,057,737
Redemptions by NCI Holders | Limited Liability Company
Class of Stock [Line Items]
Number of units redeemed (in shares)	5,000	231,599	33,195	1,057,737
Gramercy Tavern Merger | Limited Liability Company
Class of Stock [Line Items]
Number of units acquired (in shares)	0	2,690,263	0	2,690,263
Common Stock [Member] | Class A Common Stock
Class of Stock [Line Items]
Shares of Class A common stock issued in connection with redemptions of LLC Interests	5,000	231,599	33,195	1,057,737
Common Stock [Member] | Class B Common Stock
Class of Stock [Line Items]
Shares of Class A common stock issued in connection with redemptions of LLC Interests	(5,000)	(231,599)	(33,195)	(1,057,737)
Shares of Class B common stock surrendered and canceled	5,000	231,599	33,195	1,057,737

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Change in the number of units for each class of partners' capital accounts during the year due to acquisitions. Partners include general, limited and preferred partners.

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