Contingent Earnout Share Liability (Details) - USD ($) $ / shares in Units, $ in Millions	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020	Jan. 14, 2020	Dec. 31, 2019	Nov. 20, 2019	Nov. 19, 2019
Tranche I - EBITDA for last 12 months or 20 trading days in consecutive 30 day trading period
Business Acquisition, Contingent Consideration [Line Items]
Maximum EBITDA before stock conversion						$ 132
Maximum stock price of common stock before conversion (in usd per share)						$ 12.00
Tranche II - LTM EBITDA or 20 trading days in consecutive 30 day trading period
Business Acquisition, Contingent Consideration [Line Items]
Maximum EBITDA before stock conversion						$ 152
Maximum stock price of common stock before conversion (in usd per share)						$ 14.00
Tranche III - LTM EBITDA or 20 trading days in consecutive 30 day trading period
Business Acquisition, Contingent Consideration [Line Items]
Maximum EBITDA before stock conversion						$ 172
Maximum stock price of common stock before conversion (in usd per share)						$ 16.00
Class A-2 Common Stock
Business Acquisition, Contingent Consideration [Line Items]
Class A-1 Common Stock reserved for issuance						10,000,000
Class A-2 Common Stock | Tranche I - EBITDA for last 12 months or 20 trading days in consecutive 30 day trading period
Business Acquisition, Contingent Consideration [Line Items]
Number of shares converted (in shares)				1,666,666
Class A-2 Common Stock | Tranche II - LTM EBITDA or 20 trading days in consecutive 30 day trading period
Business Acquisition, Contingent Consideration [Line Items]
Number of shares converted (in shares)						1,666,667
Class A-2 Common Stock | Tranche III - LTM EBITDA or 20 trading days in consecutive 30 day trading period
Business Acquisition, Contingent Consideration [Line Items]
Number of shares converted (in shares)				1,666,636		1,666,667
Class A-2 Common Stock | Common Stock
Business Acquisition, Contingent Consideration [Line Items]
Shares issued (in shares)							5,000,000
Class A-1 Common Stock
Business Acquisition, Contingent Consideration [Line Items]
Percentage of ownership requiring exchange (less than)				4.99%
Class A-1 Common Stock | Common Stock
Business Acquisition, Contingent Consideration [Line Items]
Shares issued (in shares)	93,379,508	93,379,508	78,234,106		76,637,470