INCOME TAXES - DEFERRED TAX ASSETS AND LIABILITIES (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Deferred tax assets (liabilities):
Accrued expenses	$ 2,670	$ 2,964
Allowance for doubtful accounts	869	857
State taxes	27	178
Lease liabilities	83,076
Insurance	137	0
Total deferred tax assets	86,779	3,999
Depreciation and amortization	(6,107)	(4,357)
Prepaid expenses	(594)	(240)
Right of use asset	(82,181)
Other liabilities	0	(14)
Total deferred tax liabilities	(88,882)	(4,611)
Net deferred tax liabilities, included in other long-term liabilities	$ (2,103)	$ (612)