Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2019	Dec. 31, 2018
Net Deferred Tax Liabilities related to IPR&D		$ 3,007	$ 3,007
Income tax expense (benefit)	$ (765)
Glemba | IPR&D
Income tax expense (benefit)	$ (800)