FEDERAL AND STATE CURRENT AND DEFERRED INCOME TAX - Operating Loss, Federal Tax Credit, and State Capital Loss Carryforwards (Details) $ in Thousands	Dec. 31, 2017 USD ($)
Federal Net Operating Losses
Tax Credit Carryforward [Line Items]
Expire 2031 through 2037	$ 185,494
Total Operating and Capital Losses	185,494
Federal Tax Credits
Tax Credit Carryforward [Line Items]
Expire 2018 through 2020	2,751
Expire 2021 through 2025	782
Expire 2031 through 2037	3,970
Total Federal Tax Credits	7,503
State Losses
Tax Credit Carryforward [Line Items]
Expire 2018 through 2020	14,161
Expire 2021 through 2025	6,819
Expire 2026 through 2030	17,009
Expire 2031 through 2037	136,730
Total Operating and Capital Losses	174,719
State Losses | State Capital Losses
Tax Credit Carryforward [Line Items]
Expire 2018 through 2020	8,500
Expire 2021 through 2025	5,655
Total Operating and Capital Losses	$ 14,155