HH&L Acquisition Co. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Description of Organization and Business Operations (Details)

Description of Organization and Business Operations (Details)			3 Months Ended
	Feb. 09, 2021 USD ($) $ / shares shares	Sep. 04, 2020 item	Mar. 31, 2022 USD ($) item $ / shares shares	Mar. 31, 2021 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Subsidiary, Sale of Stock [Line Items]
Condition for future business combination number of businesses minimum \| item		1	1
Proceeds received from initial public offering, gross				$ 414,000,000
Offering costs				8,715,099
Deferred underwriting commissions			$ 14,490,000		$ 14,490,000
Offering costs				8,715,099
Cash held outside the Trust Account			90,610		399,935
Payments for investment of cash in Trust Account			$ 414,000,000.0	414,000,000
Redemption of shares calculated based on business days prior to consummation of business combination (in days)			185 days
Duration of combination period			24 months
Operating bank accounts			$ 91,000
Working capital			$ 1,000,000.0
Repayment of promissory note - related party				$ 185,116
Initial Public Offering
Subsidiary, Sale of Stock [Line Items]
Number of units issued \| shares	41,400,000
Purchase price, per unit \| $ / shares	$ 10.00		$ 10.00
Proceeds received from initial public offering, gross	$ 414,000,000.0
Offering costs	23,700,000
Deferred underwriting commissions	14,500,000
Offering costs	$ 23,700,000
Condition for future business combination use of proceeds percentage			80
Condition For Future Business Combination Threshold Percentage Ownership			80
Threshold percentage of outstanding voting securities of target to be acquired by post transaction company to complete business combination			50.00%
Minimum net tangible assets upon consummation of business combination			$ 5,000,001
Threshold Percentage Of Public Shares Subject To Redemption Without Company's Prior Written Consent			20.00%
Threshold business days for redemption of public shares			10 days
Percentage Obligation To Redeem Public Shares If Entity Does Not Complete A Business Combination			100.00%
Obligation to redeem Public Shares if entity does not complete a Business Combination (as a percent)			100.00%
Maximum interest to pay for Dissolution expenses			$ 100,000
Initial Public Offering \| Class A Common Stock
Subsidiary, Sale of Stock [Line Items]
Number of units issued \| shares	41,400,000
Purchase price, per unit \| $ / shares	$ 10.00
Proceeds received from initial public offering, gross	$ 414,000,000.0
Private Placement \| Private Placement Warrants
Subsidiary, Sale of Stock [Line Items]
Number of warrants issued \| shares			10,280,000
Price of warrant \| $ / shares			$ 1.00
Proceeds from sale of Private Placement Warrants			$ 10,300,000
Over-allotment option
Subsidiary, Sale of Stock [Line Items]
Number of units issued \| shares	5,400,000		5,400,000
Over-allotment option \| Class A Common Stock
Subsidiary, Sale of Stock [Line Items]
Number of units issued \| shares	5,400,000
Working Capital Loans
Subsidiary, Sale of Stock [Line Items]
Notes Payable, Related Parties					$ 0	$ 0