Stockholders' Equity - Narrative (Details) $ / shares in Units, $ in Millions				1 Months Ended	12 Months Ended
	Sep. 28, 2020 USD ($) $ / shares shares	Aug. 14, 2020 shares	Jul. 14, 2020 shares	Oct. 31, 2020 USD ($) $ / shares shares	Dec. 31, 2019 $ / shares shares	Dec. 31, 2017 $ / shares shares	Dec. 31, 2020 $ / shares shares	Jan. 14, 2020 shares	Nov. 20, 2019 USD ($) shares
Class of Warrant or Right [Line Items]
Common stock, par value (in usd per share) | $ / shares	$ 0.0001				$ 0.0001		$ 0.0001
Preferred stock, authorized (in shares)					1,000,000		1,000,000
Common stock, shares authorized (in shares)					250,000,000		250,000,000
Sale of stock (in usd per share) | $ / shares	$ 10.50			$ 10.50
Sale of stock, aggregate issuance amount | $	$ 84.0
Sale of stock, consideration received on transaction | $	$ 79.2
Common stock, shares issued (in shares)					76,637,470		93,379,508
Warrants issued (in shares)					7,333,326	15,000,000
Warrants canceled and reissued to prior shareholders (in shares)					2,444,437
Term of warrants					5 years	5 years
Warrant, exercise price (in usd per share) | $ / shares					$ 11.50	$ 11.50
Warrants, subject to adjustments after consummation of reverse capitalization period					30 days	30 days
Exercise conversion rate of warrants (share per share)			0.25
Number of warrants exercised (in shares)		7,189,990
Percent of warrants outstanding		99.93%
Public Stock Offering
Class of Warrant or Right [Line Items]
Sale of common stock, shares issued (in shares)	8,000,000
Payments of stock issuance costs | $	$ 5.3
Over-Allotment Option
Class of Warrant or Right [Line Items]
Sale of common stock, shares issued (in shares)	1,200,000
Tranche I - EBITDA for last 12 months or 20 trading days in consecutive 30 day trading period
Class of Warrant or Right [Line Items]
Maximum EBITDA before stock conversion | $									$ 132.0
Tranche II - LTM EBITDA or 20 trading days in consecutive 30 day trading period
Class of Warrant or Right [Line Items]
Maximum EBITDA before stock conversion | $									152.0
Tranche III - LTM EBITDA or 20 trading days in consecutive 30 day trading period
Class of Warrant or Right [Line Items]
Maximum EBITDA before stock conversion | $									$ 172.0
Class A-1 Common Stock
Class of Warrant or Right [Line Items]
Common stock, shares authorized (in shares)							250,000,000
Conversion of stock, shares converted (in shares)			3,784,416
Exercise of warrants (in shares)		1,797,474
Class A-1 Common Stock | Over-Allotment Option
Class of Warrant or Right [Line Items]
Sale of common stock, shares issued (in shares)				1,133,015
Sale of stock, consideration received on transaction | $				$ 11.2
Class A-2 Common Stock | Tranche I - EBITDA for last 12 months or 20 trading days in consecutive 30 day trading period
Class of Warrant or Right [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
Class of Warrant or Right [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
Class of Warrant or Right [Line Items]
Number of shares converted (in shares)								1,666,636	1,666,667