Earnings per Share - Summary of Components of Common Stock Equivalent Shares Excluded from Computation of Diluted Loss per Share (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Share equivalents excluded from earnings (loss) per share	10,807,012	32,737,210	10,807,012
Class A Common Stock | Post-Merger Repay Units Exchangeable
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Share equivalents excluded from earnings (loss) per share	8,361,477	22,045,296	8,361,477
Class A Common Stock | Earn-out Post-Merger Repay Units Exchangeable
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Share equivalents excluded from earnings (loss) per share		7,500,000
Class A Common Stock | Dilutive Warrants Exercisable
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Share equivalents excluded from earnings (loss) per share		1,160,053
Class A Common Stock | Unvested Restricted Share Awards
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Share equivalents excluded from earnings (loss) per share	2,445,535	2,031,861	2,445,535