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Capital Management - Additional Information (Detail)
 12 Months Ended
Jun. 26, 2025
Feb. 12, 2025
Nov. 01, 2023
Oct. 31, 2025
Statement [Line Items]        
Capital conservation buffer, percentage       2.50%
Common equity surcharge, percentage       1.00%
Domestic stability buffer, percentage 3.50%     3.50%
With Effect effective November 1, 2023 [Member] | Minimum [Member]        
Statement [Line Items]        
Domestic stability buffer, percentage     3.00%  
With Effect effective November 1, 2023 [Member] | Maximum [Member]        
Statement [Line Items]        
Domestic stability buffer, percentage     3.50%  
2025 [Member]        
Statement [Line Items]        
Capital floor adjustment percentage   67.50%