Assets Held for Sale - Components of assets held-for-sale (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Assets Held For Sale, Disclosure [Line Items]
Cost of intangible assets	$ 16,158
Accumulated amortization	3,143
Asset held for sale | ANDA
Assets Held For Sale, Disclosure [Line Items]
Cost of intangible assets	2,281	$ 4,074
Accumulated amortization	(635)	(853)
Impairment of intangible assets	(1,348)	0
Total	$ 298	$ 3,221