Income Taxes - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Income tax provision (benefit)	$ 1,482,000	$ (16,272,000)	$ 2,902,000	$ (23,552,000)
Effective income tax rate	(1.30%)	15.60%	(1.50%)	16.80%
Deferred tax liabilities, intangible assets	$ 300,000		$ 300,000
Valuation allowance	107,000,000.0		107,000,000.0
Unrecognized tax benefits	29,200,000		29,200,000
Unrecognized tax benefits that would impact the Company's effective tax rate	2,100,000		2,100,000
Unrecognized tax benefits that would impact deferred taxes	27,100,000		27,100,000
Unrecognized tax benefits, income tax penalties expense			0
Unrecognized tax benefits, interest on income taxes expense			2,800,000
Unrecognized tax benefits, income tax penalties accrued	8,600,000		8,600,000
Unrecognized tax benefits, interest on income taxes accrued	$ 14,800,000		$ 14,800,000