LEASES - Summary of Leases (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($)
Lessee, Lease, Description [Line Items]
Operating leases	$ 36,602
Variable lease costs	21,509
Rent expense	$ 60,299
Weighted average remaining lease term	4 years 7 months 6 days
Weighted average discount rate	10.00%
Cash paid for amounts included in the measurement of operating lease liabilities	$ 44,936
Right-of-use assets obtained in exchange for new operating lease liabilities	6,442
Operating Leases for Company-Owned and Franchise Stores
Lessee, Lease, Description [Line Items]
Rent expense	58,111
Other
Lessee, Lease, Description [Line Items]
Rent expense	$ 2,188