v3.26.3
Interest Income and Interest Expense - Schedule of Interest Income and Expense (Details) - USD ($)
$ in Thousands
 3 Months Ended
Aug. 31, 2026
Aug. 31, 2025
Interest income:    
Cash and investment securities $ 1,297 $ 1,874
Total interest income 454,456 447,446
Interest expense:    
Short-term borrowings 45,312 50,326
Total interest expense 378,486 376,469
Net interest income 75,970 70,977
Long-term debt    
Interest expense:    
Long-term debt and subordinated debt 299,704 291,192
Subordinated debt    
Interest expense:    
Long-term debt and subordinated debt 33,470 34,951
Loans    
Interest income:    
Loans $ 453,159 $ 445,572