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)			1 Months Ended	9 Months Ended
	Feb. 09, 2021 USD ($) $ / shares shares	Sep. 04, 2020 item	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($) item $ / shares shares	Dec. 31, 2020 USD ($)	Oct. 31, 2020 $ / shares
Subsidiary, Sale of Stock [Line Items]
Condition for future business combination number of businesses minimum \| item		1		1
Proceeds from issuance initial public offering				$ 414,000,000
Offering costs				8,715,098
Deferred underwriting commissions				14,490,000
Payments of Stock Issuance Costs				8,715,098
Cash held outside the Trust Account				475,056	$ 6,410
Payments for investment of cash in Trust Account				$ 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				$ 475,000
WorkingCapital				389,000
Proceeds from note payable to related party	$ 185,000		$ 10,000
Repayments of Related Party Debt	$ 6,000			$ 185,116
Period From Business Combination For Which Company Believes There Will Be Sufficient Working Capital And Borrowing Capacity To Meet Its Needs				1 year
Initial Public Offering
Subsidiary, Sale of Stock [Line Items]
Number of units issued \| shares	41,400,000			5,400,000
Purchase price, per unit \| $ / shares	$ 10.00			$ 10.00		$ 10.00
Proceeds from issuance initial public offering	$ 414,000,000.0
Offering costs	23,700,000
Deferred underwriting commissions	14,500,000
Payments of Stock Issuance Costs	$ 23,700,000
Payments for investment of cash in Trust Account				$ 414,000,000.0
Condition for future business combination use of proceeds percentage				80
Condition for future business combination threshold Percentage Ownership				80
Thres hold 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 Companys 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 from issuance initial public offering	$ 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
Over-allotment option \| Class A Common Stock
Subsidiary, Sale of Stock [Line Items]
Number of units issued \| shares	5,400,000
Founder Shares \| Sponsor
Subsidiary, Sale of Stock [Line Items]
Consideration received				25,000
Proceeds from note payable to related party				185,000
Working Capital Loans
Subsidiary, Sale of Stock [Line Items]
Notes Payable, Related Parties				$ 0	$ 0