Merger Agreement and Reverse Recapitalization - Narrative (Details) $ / shares in Units, $ in Thousands				12 Months Ended
	Dec. 16, 2020 shares	Nov. 16, 2020 USD ($) tradingDay $ / shares shares	Nov. 12, 2020 $ / shares shares	Dec. 31, 2020 USD ($) shares		Dec. 31, 2019 USD ($)	Nov. 15, 2020 USD ($) $ / shares
Business Acquisition [Line Items]
Minimum threshold for closing cash pursuant to the Merger Agreement		$ 110,000
Aggregate purchase price set forth in the Merger Agreement		$ 300,000
Conversion price (in usd per share) | $ / shares		$ 10
Conversion ratio		0.0576
Contingent equity, earnout period		5 years
Contingent equity, earnout period, shares issued (in shares) | shares		2,000,000
Contingent equity, earnout period, threshold business days | tradingDay		5
Contingent equity, earnout period, threshold price (in usd per share) | $ / shares		$ 16.00
Contingent equity, earnout period, threshold trading days | tradingDay		20
Contingent equity, earnout period, threshold consecutive trading days | tradingDay		30
Original fair value of the contingently issuable shares		$ 17,944
Change in fair value, Sponsor Earnout Shares				$ 8,083		$ 0
Fair Value, Inputs, Level 3
Business Acquisition [Line Items]
Fair value measurement of Sponsor earnout shares		$ 16,235
Block A Sponsor Earnout Shares
Business Acquisition [Line Items]
Sponsor earnout shares subject to restriction (in shares) | shares		859,000
Contingent liability, earnout period		5 years
Contingent liability, earnout period, threshold price (in usd per share) | $ / shares		$ 12.00
Contingent liability, earnout period, threshold trading days | tradingDay		20
Contingent liability, earnout period, threshold consecutive trading days | tradingDay		30
Block A Sponsor Earnout Shares | Measurement Input, Risk Free Interest Rate | Valuation Technique, Option Pricing Model
Business Acquisition [Line Items]
Fair value of Sponsor earnout shares, measurement input		0.0041
Block A Sponsor Earnout Shares | Measurement Input, Price Volatility | Valuation Technique, Option Pricing Model
Business Acquisition [Line Items]
Fair value of Sponsor earnout shares, measurement input		0.60
Block A Sponsor Earnout Shares | Measurement Input, Expected Term | Valuation Technique, Option Pricing Model
Business Acquisition [Line Items]
Fair value of Sponsor earnout shares, measurement input		5
Block A Sponsor Earnout Shares | Common Stock
Business Acquisition [Line Items]
Release of Block A Sponsor earnout shares from restriction (in shares) | shares	859,000			859,000	[1],[2]
Block B Sponsor Earnout Shares
Business Acquisition [Line Items]
Sponsor earnout shares subject to restriction (in shares) | shares		859,000
Contingent liability, earnout period		5 years
Contingent liability, earnout period, threshold price (in usd per share) | $ / shares		$ 16.00
Block B Sponsor Earnout Shares | Measurement Input, Risk Free Interest Rate | Valuation Technique, Option Pricing Model
Business Acquisition [Line Items]
Fair value of Sponsor earnout shares, measurement input	0.0036
Block B Sponsor Earnout Shares | Measurement Input, Price Volatility | Valuation Technique, Option Pricing Model
Business Acquisition [Line Items]
Fair value of Sponsor earnout shares, measurement input	0.60
Block B Sponsor Earnout Shares | Measurement Input, Expected Term | Valuation Technique, Option Pricing Model
Business Acquisition [Line Items]
Fair value of Sponsor earnout shares, measurement input	5
BMRG
Business Acquisition [Line Items]
Redemption of BMRG shares prior to the Merger (in shares) | shares		6,442,195	6,442,195
Redemption of BMRG shares prior to the Merger (in usd per share) | $ / shares			$ 10.10
Redemption of BMRG shares prior to the Merger		$ 65,066
Cash balance immediately prior to the Closing		$ 111,600					$ 167,411
Sponsor earnout shares subject to restriction (in shares) | shares		1,718,000
BMRG | Private Placement
Business Acquisition [Line Items]
Issuance of PIPE Shares (in shares) | shares		4,000,000
Issuance of PIPE Shares (in usd per share) | $ / shares							$ 10.00
Issuance of PIPE Shares		$ 40,000

[1] See Note 1 for discussion of reverse capitalization given effect herein

[2] See Note 2 for discussion of Sponsor Earnout Shares