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Summary of Significant Accounting Policies - Schedule of earnings per share, basic and diluted (Detail) - USD ($)
 1 Months Ended 3 Months Ended 6 Months Ended 9 Months Ended
Dec. 31, 2020
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Jun. 30, 2021
Sep. 30, 2021
Denominator: Weighted average Class common stock            
Basic and diluted weighted average shares outstanding [1],[2] 7,500,000          
Basic and diluted net income (loss) per share $ 0.00          
Common Class A [Member]            
Numerator: Income allocable to Class A common stock            
Allocation of net income (loss)   $ (5,308,662)       $ (16,219,758)
Denominator: Weighted average Class common stock            
Basic and diluted weighted average shares outstanding   34,500,000 34,500,000 7,787,500 21,729,282 26,032,967
Basic and diluted net income (loss) per share   $ (0.15) $ (0.01) $ (0.88) $ (0.49) $ (0.62)
Common Class B [Member]            
Numerator: Income allocable to Class A common stock            
Allocation of net income (loss)   $ (1,327,165)       $ (5,201,757)
Denominator: Weighted average Class common stock            
Basic and diluted weighted average shares outstanding   8,625,000 8,625,000 8,625,000 8,208,564 8,348,901
Basic and diluted net income (loss) per share   $ (0.15) $ (0.01) $ (0.88) $ (0.49) $ (0.62)
[1] On March 4, 2021, the Company effected a 1:1.2 stock split of Class B common stock, resulting in an aggregate of 8,625,000 shares of Class B common stock outstanding. All shares and associated amounts have been retroactively restated to reflect the stock split (see Note 4).
[2] This number excludes an aggregate of up to 1,125,000 Class B common stock subject to forfeiture if the over-allotment option is not exercised in full or in part by the underwriters (see Note 4).