Stockholders' Equity - Narrative (Details)					1 Months Ended	12 Months Ended
	Sep. 28, 2020 USD ($) $ / shares shares	Aug. 14, 2020 shares	Jul. 14, 2020 shares	Nov. 20, 2019 USD ($) $ / shares shares	Oct. 31, 2020 USD ($) $ / shares shares	Dec. 31, 2020 USD ($) $ / shares shares	Jan. 14, 2020 shares	Dec. 31, 2019 $ / shares shares	Dec. 31, 2017 $ / shares shares	Jan. 31, 2013 $ / shares 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 | $	$ 84,000,000
Sale of stock, consideration received on transaction | $	$ 79,200,000
Common stock, shares issued (in shares)						93,379,508		76,637,470
Warrants issued and outstanding (in shares)						0		190,575
Warrants issued (in shares)				7,333,326					15,000,000	253,575
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	$ 17.80
Warrants, subject to adjustments after consummation of reverse capitalization period				30 days
Exercise of warrants (in shares)						190,575
Proceeds from issuance of stock warrants | $						$ 3,392,235
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 | $	$ 5,300,000
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 | $				$ 132,000,000
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 | $				152,000,000
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 | $				$ 172,000,000
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 | $					$ 11,200,000
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)				1,666,667			1,666,636