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Financial Assets and Financial Liabilities - Description of Significant Unobservable Inputs to Valuation (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Disclosure of significant unobservable inputs used in fair value measurement of assets [Line Items]    
Liquidity discount 30.00% 30.00%
Other equity securities [Member]    
Disclosure of significant unobservable inputs used in fair value measurement of assets [Line Items]    
Valuation technique Market Approach Method  
Significant unobservable inputs Liquidity Discount  
Liquidity discount 30.00% 30.00%
Sensitivity of the input to fair value 5%  decrease in the discount would increase in fair value by $209 5%  decrease in the discount would increase in fair value by $162
Increase in fair value due to a decrease in the liquidity discount $ 209 $ 162