Fair Value - Additional Information (Details) $ in Thousands	Sep. 30, 2021 USD ($) $ / shares	Jan. 31, 2021 USD ($)	Dec. 31, 2020 USD ($) $ / shares
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Business combination contingent consideration | $	$ 624
Settlement of contingent consideration related to a business combination | $		$ 2,062
Transfer between level1 to level2 | $	0
Transfer between level2 to level1 | $	$ 0
Discount rate | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Business combination contingent consideration, measurement input	26.0
Cost of capital | Contingent consideration - business combination | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Business combination contingent consideration, measurement input	26.0
Current stock price | Private warrant liability
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants, measurement input	17.68		14.27
Exercise Price | Private warrant liability
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants, measurement input	11.50		11.50
Volatility | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Business combination contingent consideration, measurement input	34.3
Volatility | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Business combination contingent consideration, measurement input	65
Volatility | Private warrant liability
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants, measurement input	53		35
Expected term | Private warrant liability
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants term	4 years 2 months 23 days		4 years 11 months 23 days
Income approach
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Business combination contingent consideration | $			$ 1,800
Income approach | Discount rate | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Business combination contingent consideration, measurement input			9.96
Income approach | Discount rate | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Business combination contingent consideration, measurement input			9.98
Income approach | Revenue volatility
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Business combination contingent consideration, measurement input			18.0
Income approach | Cost of capital | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Business combination contingent consideration, measurement input			21.5
Monte Carlo simulation method
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Business combination contingent consideration | $	$ 1,143		$ 1,749
Monte Carlo simulation method | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Business combination contingent consideration, measurement input	5.2		9
Monte Carlo simulation method | Cost of capital | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Business combination contingent consideration, measurement input	29.5
Monte Carlo simulation method | Current stock price
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Business combination contingent consideration, measurement input | $ / shares			14.27
Contingent consideration earnout, measurement input	17.68		14.27
Monte Carlo simulation method | Current stock price | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Business combination contingent consideration, measurement input | $ / shares	17.68
Monte Carlo simulation method | Strike price
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Business combination contingent consideration, measurement input | $ / shares	20.00		20.00
Monte Carlo simulation method | Exercise Price | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Contingent consideration earnout, measurement input | $ / shares	20.00		18.00
Monte Carlo simulation method | Exercise Price | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Contingent consideration earnout, measurement input | $ / shares	22.00		20.00
Monte Carlo simulation method | Exercise Price | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Contingent consideration earnout, measurement input | $ / shares			22.00
Monte Carlo simulation method | Volatility
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Business combination contingent consideration, measurement input	65		60
Contingent consideration earnout, measurement input	65		60
Monte Carlo simulation method | Forfeiture Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Contingent consideration earnout, measurement input	15		16