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Investment Properties - Estimated Service Lives of Investment Properties (Detail)
12 Months Ended
Dec. 31, 2024
Land improvements [Member] | Bottom of range [Member]  
Disclosure of detailed information about investment property [Line Items]  
Estimated service lives 15 years
Land improvements [Member] | Top of Range [Member]  
Disclosure of detailed information about investment property [Line Items]  
Estimated service lives 30 years
Main buildings [Member] | Bottom of range [Member]  
Disclosure of detailed information about investment property [Line Items]  
Estimated service lives 8 years
Main buildings [Member] | Top of Range [Member]  
Disclosure of detailed information about investment property [Line Items]  
Estimated service lives 60 years
Other building facilities [Member] | Bottom of range [Member]  
Disclosure of detailed information about investment property [Line Items]  
Estimated service lives 10 years
Other building facilities [Member] | Top of Range [Member]  
Disclosure of detailed information about investment property [Line Items]  
Estimated service lives 35 years