Stock-Based Compensation and Employee Benefit Plan - Stock Options (Additional Information) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Share-based Arrangements with Employees and Nonemployees [Abstract]
Granted (in dollars per share)	$ 7.30		$ 7.30
Unrecognized compensation cost related to unvested stock options	$ 31,000,000.0		$ 31,000,000.0		$ 56,800,000
Expense expected to be recognized over remaining weighted-average period			2 years 2 months 12 days	2 years 7 months 6 days
Excess tax benefits			$ 0	$ 0
Cash received from Stock options exercised			1,000,000.0	1,400,000
Employee Stock Option
Share-based Arrangements with Employees and Nonemployees [Abstract]
Allocated share-based compensation expense	$ 4,900,000	$ 9,000,000.0	$ 10,500,000	$ 18,200,000
Class A common stock
Share-based Arrangements with Employees and Nonemployees [Abstract]
Granted options (in shares)	200,000		200,000