Accrued Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Accrued Liabilities.
Employee accrued compensation expense	$ 6,090	$ 11,873
Other accrued liabilities	19,913	18,230
Accrued interest on debt	5,923	9,539
Total accrued liabilities	$ 31,926	$ 39,642