INCOME TAXES - Income Tax Payments Refunds Net Operating Loss Carryforwards (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Payments And Refunds
Income Taxes Paid Local And State Tax Authorities	$ 381	$ 81	$ 79
Federal and state income tax refunds	0	$ 0	$ 10
Operating Loss Carryforwards [Line Items]
State income tax credits	1,248
DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	200
Domestic Country [Member]
Operating Loss Carryforwards [Line Items]
NOL carryforwards	285,521
Operating Loss Carryforwards Suspended Windfall	13,338
State and Local Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
NOL carryforwards	618,399
Capital loss carryover utilized	4,700
Operating Loss Carryforwards Suspended Windfall	$ 9,837