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Fair Value Accounting - Carrying And Estimated Fair Values Of Financial Instruments Carried On Balance Sheet (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Financial assets |  |
Investment securities available for sale | $ 9,694,515 | $ 9,788,662
Loans held for sale | 130,586 | 52,768
Financial liabilities |  |
Non-interest-bearing deposits | 12,042,353 | 12,507,616
Total deposits | 50,580,242 | 50,739,185
Federal funds purchased and securities sold under repurchase agreements | 128,244 | 189,074
Short-term FHLB advances | 252,469 | 3,496
Long-term debt | 2,031,735 | 1,932,534
Level 1 |  |
Financial assets |  |
Total cash, cash equivalents, and restricted cash | 2,423,500 | 2,451,426
Trading securities | 0 | 0
Investment securities available for sale | 615,409 | 597,629
Loans held for sale | 0 | 0
Other investments | 0 | 0
Mutual funds and mutual funds held in rabbi trusts | 59,649 | 53,742
Loans, net | 0 | 0
FRB and FHLB stock | 0 | 0
Derivative assets | 0 | 0
Financial liabilities |  |
Non-interest-bearing deposits | 0 | 0
Non-time interest-bearing deposits | 0 | 0
Time deposits | 0 | 0
Total deposits | 0 | 0
Federal funds purchased and securities sold under repurchase agreements | 128,244 | 189,074
Securities sold short | 2,469 | 3,496
Short-term FHLB advances | 0 |
Long-term debt | 0 | 0
Mutual funds held in rabbi trusts | 44,759 | 38,735
Derivative liabilities | 0 | 0
Level 2 |  |
Financial assets |  |
Total cash, cash equivalents, and restricted cash | 0 | 0
Trading securities | 7,411 | 12,898
Investment securities available for sale | 9,079,106 | 9,191,033
Loans held for sale | 36,698 | 47,338
Other investments | 0 | 0
Mutual funds and mutual funds held in rabbi trusts | 0 | 0
Loans, net | 0 | 0
FRB and FHLB stock | 213,713 | 184,944
Derivative assets | 103,589 | 94,903
Financial liabilities |  |
Non-interest-bearing deposits | 12,042,353 | 12,507,616
Non-time interest-bearing deposits | 27,348,773 | 27,449,088
Time deposits | 11,160,289 | 10,769,002
Total deposits | 50,551,415 | 50,725,706
Federal funds purchased and securities sold under repurchase agreements | 0 | 0
Securities sold short | 0 | 0
Short-term FHLB advances | 250,000 |
Long-term debt | 2,006,557 | 1,939,604
Mutual funds held in rabbi trusts | 0 | 0
Derivative liabilities | 286,094 | 259,650
Level 3 |  |
Financial assets |  |
Total cash, cash equivalents, and restricted cash | 0 | 0
Trading securities | 0 | 0
Investment securities available for sale | 0 | 0
Loans held for sale | 93,798 | 5,432
Other investments | 13,115 | 12,560
Mutual funds and mutual funds held in rabbi trusts | 0 | 0
Loans, net | 41,124,811 | 41,298,149
FRB and FHLB stock |  | 0
Derivative assets | 0 | 0
Financial liabilities |  |
Non-interest-bearing deposits | 0 | 0
Non-time interest-bearing deposits | 0 | 0
Time deposits | 0 | 0
Total deposits | 0 | 0
Federal funds purchased and securities sold under repurchase agreements | 0 | 0
Securities sold short | 0 | 0
Short-term FHLB advances | 0 |
Long-term debt | 0 | 0
Mutual funds held in rabbi trusts | 0 | 0
Derivative liabilities | 0 | 0
Carrying Value |  |
Financial assets |  |
Total cash, cash equivalents, and restricted cash | 2,423,500 | 2,451,426
Trading securities | 7,411 | 12,898
Investment securities available for sale | 9,694,515 | 9,788,662
Loans held for sale |  | 52,768
Other investments | 13,115 | 12,560
Mutual funds and mutual funds held in rabbi trusts | 59,649 | 53,742
Loans, net | 42,817,216 | 42,925,105
FRB and FHLB stock | 213,713 | 184,944
Derivative assets | 103,589 | 94,903
Financial liabilities |  |
Non-interest-bearing deposits | 12,042,353 | 12,507,616
Non-time interest-bearing deposits | 27,348,773 | 27,449,088
Time deposits | 11,189,116 | 10,782,481
Total deposits | 50,580,242 | 50,739,185
Federal funds purchased and securities sold under repurchase agreements | 128,244 | 189,074
Securities sold short | 2,469 | 3,496
Short-term FHLB advances | 250,000 |
Long-term debt | 2,031,735 | 1,932,534
Mutual funds held in rabbi trusts | 44,759 | 38,735
Derivative liabilities | 286,094 | 259,650
Fair Value |  |
Financial assets |  |
Total cash, cash equivalents, and restricted cash | 2,423,500 | 2,451,426
Trading securities | 7,411 | 12,898
Investment securities available for sale | 9,694,515 | 9,788,662
Loans held for sale | 130,496 | 52,770
Other investments | 13,115 | 12,560
Mutual funds and mutual funds held in rabbi trusts | 59,649 | 53,742
Loans, net | 41,124,811 | 41,298,149
FRB and FHLB stock | 213,713 | 184,944
Derivative assets | 103,589 | 94,903
Financial liabilities |  |
Non-interest-bearing deposits | 12,042,353 | 12,507,616
Non-time interest-bearing deposits | 27,348,773 | 27,449,088
Time deposits | 11,160,289 | 10,769,002
Total deposits | 50,551,415 | 50,725,706
Federal funds purchased and securities sold under repurchase agreements | 128,244 | 189,074
Securities sold short | 2,469 | 3,496
Short-term FHLB advances | 250,000 |
Long-term debt | 2,006,557 | 1,939,604
Mutual funds held in rabbi trusts | 44,759 | 38,735
Derivative liabilities | $ 286,094 | $ 259,650

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- Definition Fair value portion of liabilities pertaining to principal and customer trading transactions, or which may be incurred with the objective of generating a profit from short-term fluctuations in price as part of an entity's market-making, hedging and proprietary trading. Examples include, but are not limited to, short positions in securities, derivatives and commodities. + References No definition available. + Details
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- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in net income (trading) and investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483467/210-10-45-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.4) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 + Details
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