Accumulated Other Comprehensive (Loss) Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	$ (4,446)	$ 3,575
Other comprehensive (loss) income before reclassifications	(38,658)	(7,431)
Amounts reclassified from accumulated other comprehensive (loss) income	(204)	(590)
Net decrease in other comprehensive (loss) income	(38,862)	(8,021)
Ending balance	(43,308)	(4,446)
Foreign currency [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(4,615)	3,153
Other comprehensive (loss) income before reclassifications	(37,887)	(7,768)
Amounts reclassified from accumulated other comprehensive (loss) income	0	0
Net decrease in other comprehensive (loss) income	(37,887)	(7,768)
Ending balance	(42,502)	(4,615)
Change in unrealized gains on available for sale securities [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	169	422
Other comprehensive (loss) income before reclassifications	(771)	337
Amounts reclassified from accumulated other comprehensive (loss) income	(204)	(590)
Net decrease in other comprehensive (loss) income	(975)	(253)
Ending balance	$ (806)	$ 169