Other Assets and Liabilities - Other Current Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Other Liabilities, Current [Abstract]
Accrued interest	$ 1,094	$ 4,920
Guarantee to Deerfield	279	280
Other	69	70
Other current liabilities	$ 1,442	$ 5,270

Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer.

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