Other Assets and Liabilities - Other Non-Current Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Other Liabilities Disclosure [Abstract]
Deferred tax assets	$ 18,256	$ 29,427
Long-term deposits	0	1,477
Guarantee from Armistice	1,050	1,367
Right of use assets at contract manufacturing organizations	5,201	6,428
Other	432	575
Total	$ 24,939	$ 39,274