INCOME TAXES - Valuation Allowance And Uncertain Tax Position (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Deferred Tax Asset Valuation Allowance [Roll Forward]
Balance at beginning year	$ 12,861	$ 20,638	$ 20,766
Increase (Decrease) Charged/ (Credited) To Income Tax	17,785	(7,777)	(165)
Increase (Decrease) Charged/ (Credited) To OCI	151	0	37
Purchase Accounting Adjustment	6,357	0	0
Balance at end of year	37,154	12,861	20,638
Liabilities for uncertain tax positions
Tax	711	0
Interest and penalties	0	0
Total	711	0
Expense (income) from uncertain tax positions
Tax expense (income)	0	(67)	0
Interest and penalties (income)	0	(170)	20
Total income taxes (benefit) from uncertain tax positions	0	(237)	20
The gross amount of changes in unrecognized tax benefits for the period:
Beginning of year balance	(7,138)	(7,690)	(7,690)
Gross increases prior year positions	(710)	0	0
Gross decreases prior year positions	0	0	0
Gross increases current year positions	0	0	0
Gross decreases current year positions	0	0	0
Settlements with tax authorities	0	0	0
Reductions due to statute lapse	28	552	0
End of year balance	(7,820)	(7,138)	(7,690)
Ending liability balance included above that was reflected as an offset to deferred tax assets	$ (7,110)	$ (7,138)	$ (7,623)