Accrued Liabilities and Other Long-Term Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Accrued liabilities
Accrued taxes (exclusive of income taxes)	$ 9,858	$ 12,953
Accrued lease exit obligations	36	270
Accrued professional and legal fees	29,119	33,897
Accrued appraisal action liability	63,422	60,654
Accrued legal reserve for pending litigation	8,046	15,146
Accrued transaction costs	2,305	2,739
Other accruals	733	740
Total accrued liabilities including accrued interest	113,519	126,399
Other Long-term liabilities
Deferred revenue	901	542
Accrued rent		449
Accrued lease exit obligations	195	195
Accrued compensation expense	1,578	1,897
Cares Act payroll tax deferrals		7,183
Other	3,325	3,358
Other Long-term liabilities	$ 5,999	$ 13,624