Accumulated Other Comprehensive Income (Loss) (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2015 USD ($)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	$ (8,895)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax [Abstract]
Other comprehensive loss before reclassifications	(4,773)
Amounts reclassified from accumulated other comprehensive income	(24)
Net current-period other comprehensive loss	(4,797)
Ending balance	(13,692)
Accumulated Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(10,088)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax [Abstract]
Other comprehensive loss before reclassifications	(4,253)
Amounts reclassified from accumulated other comprehensive income	0
Net current-period other comprehensive loss	(4,253)
Ending balance	(14,341)
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	1,193
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax [Abstract]
Other comprehensive loss before reclassifications	(520)
Amounts reclassified from accumulated other comprehensive income	(24)
Net current-period other comprehensive loss	(544)
Ending balance	$ 649