Fair Value Measurements - Valuation of Warrants (Details) - Legacy Forge warrant liabilities - Monte Carlo Model	Sep. 30, 2022 $ / shares	Dec. 31, 2021 $ / shares
Fair value of underlying securities
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants measurement input	1.75	30.8
Discounts for lack of marketability
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants measurement input	0.000	0.000
Expected term (years)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants measurement input	4.0
Expected volatility
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants measurement input	0.446
Risk-free interest rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants measurement input	0.042
Expected dividend yield
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants measurement input	0.000	0.000
Fair value per warrant
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants measurement input	0.16
Minimum | Expected term (years)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants measurement input		3.4
Minimum | Expected volatility
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants measurement input		0.404
Minimum | Risk-free interest rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants measurement input		0.010
Minimum | Fair value per warrant
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants measurement input		5.0
Maximum | Expected term (years)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants measurement input		8.8
Maximum | Expected volatility
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants measurement input		0.443
Maximum | Risk-free interest rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants measurement input		0.015
Maximum | Fair value per warrant
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants measurement input		22.0