Registration statement for securities of certain foreign private issuers

Fair value measurement - Summary of Valuation Inputs To The Fair Value of Purchase Options (Detail)

v3.22.1
Fair value measurement - Summary of Valuation Inputs To The Fair Value of Purchase Options (Detail) - Purchase Options [Member]
Dec. 31, 2021
Customers
Spot Price Per Share [Member] | Unlisted Software Company [Member]  
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]  
Significant unobservable input, assets 392
Spot Price Per Share [Member] | Mega E [Member]  
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]  
Significant unobservable input, assets 397,000
Historical volatility for shares, measurement input [member] | Unlisted Software Company [Member]  
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]  
Significant unobservable input, assets 15
Historical volatility for shares, measurement input [member] | Mega E [Member]  
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]  
Significant unobservable input, assets 92