INCOME TAXES - Temporary Differences That Give Rise to Deferred Tax (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Deferred tax assets:
Reserves not currently deductible	$ 19,249	$ 27,467
Net operating loss carryforwards	121,084	91,350
Goodwill and intangibles (tax deductible)	27,549	34,983
Accrued expenses	467	654
Property basis differences	2,578	1,021
Stock based compensation	6,887	8,245
Other	638	715
Total deferred tax assets	178,452	164,435
Deferred tax liabilities:
Indefinite-lived goodwill and intangibles	(2,281)	(236)
Less: valuation allowance	(178,452)	(164,435)
Net deferred tax liability	(2,281)	(236)
Deferred taxes	$ (2,281)	$ (236)