Deposits (Additional Information About Corporation's Deposits) (Detail) - USD ($) $ in Thousands |
Dec. 31, 2022 |
Dec. 31, 2021 |
---|---|---|
Deposit Liability [Line Items] | ||
Deposits from foreign sources (primarily Mexico) | $ 1,048,943 | $ 993,479 |
Non-interest-bearing public funds deposits | 17,598,234 | 18,423,018 |
Interest-bearing public funds deposits | 26,355,962 | 24,272,678 |
Total deposits not covered by deposit insurance | 23,839,797 | 24,125,359 |
Time deposits not covered by deposit insurance | 430,128 | 238,608 |
Deposits from certain directors, executive officers and their affiliates | 153,083 | 276,556 |
Public Funds [Member] | ||
Deposit Liability [Line Items] | ||
Non-interest-bearing public funds deposits | 788,040 | 1,235,026 |
Interest-bearing public funds deposits | $ 758,761 | $ 810,863 |