Takeda Asset Purchase and Stock Purchase Agreements - Summary of Fair Value of Series A Convertible Preferred Stock Using Black-Scholes Option-pricing Model (Details) - Series A Convertible Preferred Stock	1 Months Ended	6 Months Ended
	Oct. 31, 2021 $ / shares	Jun. 30, 2022 $ / shares
Credit Spread
Business Acquisition [Line Items]
Measurement input		0.224
Credit Spread | Millennium Asset Purchase Agreement | Millennium
Business Acquisition [Line Items]
Measurement input	0.124
Expected Term
Business Acquisition [Line Items]
Expected term		10 months 24 days
Expected Term | Millennium Asset Purchase Agreement | Millennium
Business Acquisition [Line Items]
Expected term	8 months 12 days
Volatility
Business Acquisition [Line Items]
Measurement input		0.55
Volatility | Millennium Asset Purchase Agreement | Millennium
Business Acquisition [Line Items]
Measurement input	0.55
Risk-free Interest Rate
Business Acquisition [Line Items]
Measurement input		0.0195
Risk-free Interest Rate | Millennium Asset Purchase Agreement | Millennium
Business Acquisition [Line Items]
Measurement input	0.0008
Common Stock Price
Business Acquisition [Line Items]
Common stock price		$ 4.44
Common Stock Price | Millennium Asset Purchase Agreement | Millennium
Business Acquisition [Line Items]
Common stock price	$ 40.80