Accrued Liabilities and Other Long-Term Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018
Accrued liabilities
Accrued taxes (exclusive of income taxes)	$ 9,608				$ 10,606
Accrued lease exit obligations	1,127				1,694
Accrued professional and legal fees	33,421				31,220
Accrued appraisal action liability	56,412				40,649
Deferred rent					1,421
Accrued interest	48,769	$ 24,602	$ 48,935	$ 23,928	49,071	$ 23,845	$ 48,885	$ 23,795
Accrued transaction costs	2,250				2,250
Other accruals	18,735				19,515
Total accrued liabilities including accrued interest	121,553				107,355
Other Long-term liabilities
Deferred revenue	339				432
Deferred rent	669				7,650
Accrued lease exit obligations	136				369
Accrued compensation expense	2,075				2,173
Other	3,743				4,093
Other Long-term liabilities	$ 6,962	$ 7,866	$ 7,882	$ 6,747	$ 14,717	$ 15,307	$ 16,208	$ 13,879