TAXES (Narrative) (Details) - USD ($)	3 Months Ended	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Tax Contingency [Line Items]
Tax cuts and jobs act Of 2017, incomplete accounting, provisional income tax expense (benefit)	$ (54,300,000)	$ (54,300,000)
Operating loss carryforwards, valuation allowance	7,625,000	7,625,000	$ 6,625,000
Valuation allowance, deferred tax asset, increase (decrease), amount		1,000,000
Unrecognized tax benefits that would impact effective tax rate	36,884,000	36,884,000	36,077,000
Unrecognized tax benefits, interest on income taxes accrued	76,000	76,000	58,000	$ 168,000
Unrecognized tax benefits, income tax penalties and interest accrued	911,000	911,000	835,000	$ 777,000
Reserve for uncertain tax positions	3,205,000	3,205,000	3,129,000
US Federal [Member]
Income Tax Contingency [Line Items]
Operating loss carryforwards	281,942,000	281,942,000
State and Local Jurisdiction [Member]
Income Tax Contingency [Line Items]
Operating loss carryforwards	244,026,000	244,026,000	$ 292,233,000
Minimum [Member]
Income Tax Contingency [Line Items]
Change in unrecognized tax benefits is reasonably possible, amount of unrecorded benefit	0	0
Maximum [Member]
Income Tax Contingency [Line Items]
Change in unrecognized tax benefits is reasonably possible, amount of unrecorded benefit	$ 37,240,000	$ 37,240,000