Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Minority Interest [Line Items]
Unutilized foreign tax credits									$ 1,100
Carried back period (in years)									1 year
Carried forward period (in years)									10 years
Provision for income taxes	$ 2,362	$ 3,453	$ 3,186	$ 1,908	$ 7,507	$ 3,555	$ 3,283	$ 1,997	$ 10,909	$ 16,342	$ 57,542
Deferred tax assets, net	52,595				53,852				52,595	53,852
Non-controlling interest	(399,510)				(405,976)				(399,510)	(405,976)
Total stockholders' equity	98,376				75,014				$ 98,376	75,014	45,408	$ 40,615
Omission of Tax Expense | Restatement Adjustment
Minority Interest [Line Items]
Increase in Provision for income taxes										500	500
Uncertain tax position liability including interest and penalties					5,800					5,800
Income Taxes Receivable.					1,400					1,400
Deferred tax assets, net					200					200
Total stockholders' equity					(4,200)					(4,200)	$ 3,700
Minimum
Minority Interest [Line Items]
Income tax examination, period									3 years
Maximum
Minority Interest [Line Items]
Income tax examination, period									4 years
Income Taxes Payable [Member]
Minority Interest [Line Items]
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	$ 1,900				$ 1,500				$ 1,900	$ 1,500