Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Dec. 31, 2015
Accumulated Other Comprehensive Income [Abstract]
Net unrealized appreciation on available-for-sale investments			$ 5,106	$ 5,065
Foreign currency translation			(96)	(104)
Accumulated other comprehensive income	$ 4,961	$ 4,717	5,010	4,961
Deferred income tax liability			$ 2,700	$ 2,800
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	4,961	4,717
Unrealized gain reclassified and recognized in net loss, net of tax	(3)	(314)
Foreign exchange reclassified and recognized in net loss, net of tax	6	262
Total reclassified and recognized in net loss, net of tax	3	(52)
Unrealized gain on marketable securities, net of tax	43	263
Accumulated currency, net of tax	3	(253)
Total other comprehensive income (loss), net of tax	49	(42)
Accumulated other comprehensive income	$ 5,010	$ 4,675