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Hedging Financial Instruments - Additional Information (Detail)
6 Months Ended
Jun. 30, 2021
Cash flow hedges [member]  
Disclosure of detailed information about financial instruments [line items]  
Description of forward exchange contracts maturity maturities of 12 months or less.
Interest rate futures contracts [member]  
Disclosure of detailed information about financial instruments [line items]  
Hedge ratio adjustment percentage 100.00%
Forward exchange contracts and foreign currency deposits [member] | Cash flow hedges [member]  
Disclosure of detailed information about financial instruments [line items]  
Hedge ratio adjustment percentage 100.00%