REVENUE - International Revenues (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disaggregation of Revenue [Line Items]
Revenue	$ 470,351	$ 499,076	$ 533,997	$ 564,764	$ 547,861	$ 580,185	$ 617,944	$ 607,533	$ 2,068,188	$ 2,353,523	$ 2,480,962
Operating Segment
Disaggregation of Revenue [Line Items]
Revenue									2,103,693	2,617,734	2,646,275
Operating Segment | International
Disaggregation of Revenue [Line Items]
Revenue									158,167	191,409	177,778
Operating Segment | International | Wholesale sales to franchisees
Disaggregation of Revenue [Line Items]
Revenue									101,609	107,627	104,384
Operating Segment | International | Royalties and franchise fees
Disaggregation of Revenue [Line Items]
Revenue									25,902	26,503	26,609
Operating Segment | International | Other
Disaggregation of Revenue [Line Items]
Revenue									$ 30,656	$ 57,279	$ 46,785