Related party transactions - Additional Information (Details) - USD ($)						8 Months Ended
	Oct. 25, 2021	Oct. 01, 2021	Sep. 30, 2021	Jun. 30, 2021	Feb. 10, 2021	Sep. 30, 2021
Related Party Transaction [Line Items]
Share price	$ 18.00
Percentage of warrant exercise price adjusted to price received in new issuance			180.00%			180.00%
Notes Payable, Related Parties, Current			$ 200,000		$ 0	$ 200,000
Subsequent Event [Member]
Related Party Transaction [Line Items]
Class of warrants or rights warrants issued during the period		20,000,000
Sponsor [Member]
Related Party Transaction [Line Items]
Common stock, shares outstanding			656,250			656,250
Sponsor [Member] | IPO [Member]
Related Party Transaction [Line Items]
Sale of Stock, Percentage of Ownership after Transaction			20.00%
Sponsor [Member] | Unsecured Promissory Note [Member]
Related Party Transaction [Line Items]
Debt instrument maximum draw down amount					300,000
Debt Iistrument Minimum draw down amount					10,000
Notes Payable, Related Parties, Current			$ 200,000		$ 0	$ 200,000
Debt Instrument, Maturity Date					Dec. 31, 2021
Sponsor [Member] | Working Capital Loans [Member]
Related Party Transaction [Line Items]
Debt Instrument, Face Amount			$ 1,500,000			$ 1,500,000
Debt instrument conversion price per share			$ 1.00			$ 1.00
Due to Related Parties			$ 0			$ 0
Sponsor [Member] | Administrative Services Agreement [Member]
Related Party Transaction [Line Items]
Related party transaction fees payable per month			$ 10,000
Sponsor [Member] | Subsequent Event [Member]
Related Party Transaction [Line Items]
Blackout trading period after completion of business combination	30 days
Sponsor [Member] | Subsequent Event [Member] | Private Placement Warrants [Member]
Related Party Transaction [Line Items]
Class of warrants or rights warrants issued during the period	10,500,000
Class of warrants or rights warrants issued issue price per warrant	$ 1.00
Proceeds from issuances of warrants	$ 10,500,000
Common Class A [Member]
Related Party Transaction [Line Items]
Common stock, shares outstanding			0		0	0
Common Class A [Member] | Private Placement Warrants [Member]
Related Party Transaction [Line Items]
Share price			$ 9.20			$ 9.20
Percentage of equity proceeds from issuance			60.00%			60.00%
Price threshold of newly issued stock to cause adjustment of exercise warrant price			$ 9.20			$ 9.20
Percentage of warrant exercise price adjusted to price received in new issuance			115.00%			115.00%
Common Class A [Member] | Private Placement Warrants [Member] | Class A Common Stock Equals Or Exceeds Threshold One [Member]
Related Party Transaction [Line Items]
Target share price of warrants or rights for redemption			$ 18.00			$ 18.00
Common Class A [Member] | Private Placement Warrants [Member] | Class A Common Stock Equals Or Exceeds Threshold Two [Member]
Related Party Transaction [Line Items]
Target share price of warrants or rights for redemption			10.00			10.00
Common Class A [Member] | Subsequent Event [Member] | Private Placement Warrants [Member]
Related Party Transaction [Line Items]
Number of shares issued upon exercise of warrant	1
Exercise price of warrant	$ 11.50
Common Class A [Member] | Sponsor [Member]
Related Party Transaction [Line Items]
Share price			$ 12.00			$ 12.00
Threshold trading days			20 days
Threshold consecutive trading days			30 days
Period after initial business combination for determining share price			150 days
Common Class B [Member]
Related Party Transaction [Line Items]
Common stock, shares, subject to forfeiture			656,250	562,500	656,250	656,250
Common stock, shares outstanding			5,031,250	4,312,500	5,031,250	5,031,250
Common Class B [Member] | Subsequent Event [Member]
Related Party Transaction [Line Items]
Common stock, shares, subject to forfeiture	31,250
Common Class B [Member] | Sponsor [Member]
Related Party Transaction [Line Items]
Issuance of ordinary shares to Sponsor (in shares)					6,468,750	6,468,750
Proceeds from issuance of common stock					$ 25,000
Sale of stock price per share			$ 0.005		$ 0.004	$ 0.005
Common stock, shares, subject to forfeiture					843,750
Stock surrendered during period shares				2,156,250
Minimum holding period for transfer, assignment or sale of Founder Shares						1 year