Income Taxes - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Taxes [Line Items]
Corporate income tax rate	21.00%	21.00%	35.00%
Increase in income tax expense			$ 24,700,000
Adjustment to amount due pursuant to tax receivable agreement			1,600,000
Unrecognized tax benefits	$ 0	$ 0
Interest expense related to unrecognized tax positions	0	0	0
Penalties accrued related to unrecognized tax positions	0	0	0
Interest accrued in settlement of an audit of a subsidiary tax return for the year 2007	0	$ 0	$ 0
Foreign Country
Income Taxes [Line Items]
Tax benefit related to net operating loss carryforward	$ 4,200,000