SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS [Schedule] (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
SEC Schedule, 12-09, Allowance, Credit Loss [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	$ 684	$ 799
Additions Charged to Costs/Expenses (Recoveries)	(10)	72
Deductions	633	187
Balance at End of Period	41	684
SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	110,159	156,342
Additions Charged to Costs/Expenses (Recoveries)	89,327	(46,183)
Deductions	0	0
Balance at End of Period	$ 199,486	$ 110,159