Accumulated Other Comprehensive Income (Loss) (Details) $ in Thousands		6 Months Ended
		Jun. 30, 2015 USD ($)
Accumulated Other Comprehensive Income (Loss), Net [Rollforward]
Beginning Balance	[1]	$ (12,392)
Other comprehensive income before reclassifications, net of tax		(6,488)
Amounts reclassified from accumulated other comprehensive income, net of tax		0
Net other comprehensive loss		(6,488)
Ending Balance	[1]	(18,880)
Foreign currency
Accumulated Other Comprehensive Income (Loss), Net [Rollforward]
Beginning Balance		(6,717)
Other comprehensive income before reclassifications, net of tax		(4,547)
Amounts reclassified from accumulated other comprehensive income, net of tax		0
Net other comprehensive loss		(4,547)
Ending Balance		(11,264)
Unrealized gain (loss) in Accumulated OCI
Accumulated Other Comprehensive Income (Loss), Net [Rollforward]
Beginning Balance		(5,675)
Other comprehensive income before reclassifications, net of tax		(1,941)
Amounts reclassified from accumulated other comprehensive income, net of tax		0
Net other comprehensive loss		(1,941)
Ending Balance		$ (7,616)

[1] As of June 30, 2015 and December 31, 2014, total assets include $7.1 million and $7.6 million, respectively, and total liabilities include $12.7 million and $12.1 million, respectively, related to SciVac Ltd (“SciVac”), now known as SciVac Therapeutics, Inc., a consolidated variable interest entity. SciVac’s consolidated assets are owned by SciVac and SciVac’s consolidated liabilities have no recourse against us. Refer to Note 5.