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Investment Securities (Proceeds From Sales Of Securities And Components Of Investment Securities Gains And Losses) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |  |
Proceeds from sales of debt securities, available for sale, including pending trades |  |  | $ 36,065 |  | $ 1,015,845 |
Proceeds from Sale of Equity Securities, FV-NI |  |  | 0 |  | 120,012 |
Proceeds from sales of other investments, including pending trades |  |  | 10,029 |  | 21,319 |
Proceeds from sale of investments, total, including pending trades |  |  | 46,094 |  | 1,157,176 |
INVESTMENT SECURITIES GAINS (LOSSES), NET | $ 437 | $ 3,233 | (7,154) | [1] | 2,974 | [1]
Available-for-sale Securities [Member] |  |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |  |
Available-for-sale Securities, Gains realized on sales |  |  | 4 |  | 0 |
Available-for-sale Securities, Losses realized on sales |  |  | (4,218) |  | 187,543 |
Equity Securities [Member] |  |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |  |
Equity Securities, FV-NI, Gain (Loss) |  | $ 178,164 | 1,777 |  | 178,306 |
Other Investments [Member] |  |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |  |
Other Securities, Gains realized on sales |  |  | 1,167 |  | 956 |
Other Securities, Loss realized on sales |  |  | (1,773) |  | (1,522) |
Fair value other securities adjustments, net |  |  | $ (4,111) |  | $ 12,777 |
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