Accumulated Other Comprehensive Income AOCI (Table) (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended		12 Months Ended
	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017	Jan. 01, 2018	Mar. 31, 2017	Dec. 31, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ (36,546)			$ (36,546)		$ 3,852
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets		$ 600
Other Comprehensive Income (Loss), Net of Tax	702		$ (586)	(104)	$ (1,256)
Other Comprehensive Income, Other, Net of Tax				(86)
Reclassification adjustment for amounts included in net loss	(4)		478	(11)	(29)
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	967			967		566
Other Comprehensive Income (Loss), Net of Tax				(441)
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(3,286)			(3,286)		(3,286)
Other Comprehensive Income (Loss), Net of Tax				0
Accumulated Net Investment Gain (Loss) Including Portion Attributable to Noncontrolling Interest [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	967	891	(2,313)	967	(2,313)			$ (2,901)	$ (3,572)
Prior Period Reclassification Adjustment						40
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets							$ (526)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax		(72)	(1,066)	(430)	(1,230)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax		4	478	(11)	(29)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax		(76)	(588)		(1,259)
Accumulated Foreign Currency Adjustment Including Portion Attributable to Noncontrolling Interest [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	3,286	3,286	3,780	3,286	3,780			3,780	3,780
Prior Period Reclassification Adjustment						0
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets							(3,286)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax		0	0	0	0
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax		0	0	0	0
Other Comprehensive Income (Loss), Net of Tax		0	0		0
Accumulated Gain (Loss), Financial Liability, Fair Value Option, Including Portion Attributable to Noncontrolling Interest [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(40,799)	(40,021)		(40,799)		0
Prior Period Reclassification Adjustment						40,455
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets							40,455
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax				344
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax				0
Other Comprehensive Income (Loss), Net of Tax		778		344
Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(36,546)	(35,844)	1,467	(36,546)	1,467			$ 879	$ 208
Prior Period Reclassification Adjustment						$ 40,495
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets							$ 36,643
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax		706	(1,066)		(1,230)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax		4	478		(29)
Other Comprehensive Income (Loss), Net of Tax		$ 702	(588)		(1,259)
AOCI Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Net of Tax				(97)
Reclassification out of Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	$ 5		$ 2	8	$ 2
Reclassification adjustment for amounts included in net loss				$ (11)