INCOME TAXES (Summary of Amounts and Expiration Dates of Operating Loss and Tax Credit Carryforwards) (Details) $ in Thousands	Dec. 31, 2019 USD ($)
Operating Loss Carryforwards [Line Items]
Tax credit carryforward - Historic Tax Credit	$ 1,574
Federal
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	145,671
Net operating loss carryforwards - Federal	311,972
Tax credit carryforwards - Federal AMT	1,736
State
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	$ 632,122

Tax Credit Carryforward, Historic Tax Credit

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- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards that are not subject to expiration dates.

+ References

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- Definition

Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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