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v3.23.1

Fair Value Accounting (Financial Instruments Measured at Fair Value on Recurring Basis) (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Assets |  |
Investment securities available for sale | $ 9,732,618 | $ 9,678,103
Mortgage loans held for sale | 44,400 | 51,136
Collateralized mortgage obligations issued by U.S. Government agencies or sponsored enterprises |  |
Assets |  |
Investment securities available for sale | 648,559 | 655,127
U.S. Treasury securities |  |
Assets |  |
Investment securities available for sale | 480,280 | 471,813
Mortgage-backed securities issued by U.S. Government agencies |  |
Assets |  |
Investment securities available for sale | 708,545 | 792,749
Mortgage-backed securities issued by U.S. Government sponsored enterprises |  |
Assets |  |
Investment securities available for sale | 7,025,500 | 6,895,070
Commercial mortgage-backed securities issued by U.S. Government agencies or sponsored enterprises |  |
Assets |  |
Investment securities available for sale | 812,023 | 805,945
Corporate debt securities and other debt securities |  |
Assets |  |
Investment securities available for sale | 8,766 | 8,601
Level 1 |  |
Assets |  |
Trading securities | 0 | 0
Investment securities available for sale | 480,280 | 471,813
Other investments | 0 | 0
Mutual funds and mutual funds held in rabbi trusts | 48,428 | 42,659
SBA loans servicing asset | 0 | 0
Derivative assets | 0 | 0
Liabilities |  |
Securities sold short | 3,152 | 3,370
Mutual funds held in rabbi trusts | 33,470 | 27,944
Derivative liabilities | 0 | 0
Level 2 |  |
Assets |  |
Trading securities | 25,915 | 8,295
Investment securities available for sale | 9,252,338 | 9,206,290
Other investments | 0 | 0
Mutual funds and mutual funds held in rabbi trusts | 0 | 0
SBA loans servicing asset | 0 | 0
Derivative assets | 88,257 | 89,815
Liabilities |  |
Securities sold short | 0 | 0
Mutual funds held in rabbi trusts | 0 | 0
Derivative liabilities | 318,999 | 339,227
Level 3 |  |
Assets |  |
Trading securities | 0 | 0
Investment securities available for sale | 0 | 0
Other investments | 11,655 | 11,172
Mutual funds and mutual funds held in rabbi trusts | 0 | 0
SBA loans servicing asset | 2,412 | 2,354
Derivative assets | 0 | 0
Liabilities |  |
Securities sold short | 0 | 0
Mutual funds held in rabbi trusts | 0 | 0
Derivative liabilities | 1,111 | 3,453
Fair Value, Measurements, Recurring Basis |  |
Assets |  |
Trading securities | 25,915 | 8,295
Investment securities available for sale | 9,732,618 | 9,678,103
Mortgage loans held for sale | 44,400 | 51,136
Other investments | 11,655 | 11,172
Mutual funds and mutual funds held in rabbi trusts | 48,428 | 42,659
SBA loans servicing asset | 2,412 | 2,354
Derivative assets | 88,257 | 89,815
Liabilities |  |
Securities sold short | 3,152 | 3,370
Mutual funds held in rabbi trusts | 33,470 | 27,944
Derivative liabilities | 320,110 | 342,680
Fair Value, Measurements, Recurring Basis | Collateralized mortgage obligations issued by U.S. Government agencies or sponsored enterprises |  |
Assets |  |
Trading securities | 2,954 | 2,991
Investment securities available for sale | 648,559 | 655,127
Fair Value, Measurements, Recurring Basis | Other mortgage-backed securities |  |
Assets |  |
Trading securities | 2,909 | 3,185
Fair Value, Measurements, Recurring Basis | State and municipal securities |  |
Assets |  |
Trading securities | 69 | 48
Fair Value, Measurements, Recurring Basis | Asset-backed securities |  |
Assets |  |
Trading securities | 19,185 | 2,071
Fair Value, Measurements, Recurring Basis | Other Investments |  |
Assets |  |
Trading securities | 798 | 0
Fair Value, Measurements, Recurring Basis | U.S. Treasury securities |  |
Assets |  |
Investment securities available for sale | 480,280 | 471,813
Fair Value, Measurements, Recurring Basis | U.S. Government agency securities |  |
Assets |  |
Investment securities available for sale | 48,945 | 48,798
Fair Value, Measurements, Recurring Basis | Mortgage-backed securities issued by U.S. Government agencies |  |
Assets |  |
Investment securities available for sale | 708,545 | 792,749
Fair Value, Measurements, Recurring Basis | Mortgage-backed securities issued by U.S. Government sponsored enterprises |  |
Assets |  |
Investment securities available for sale | 7,025,500 | 6,895,070
Fair Value, Measurements, Recurring Basis | Commercial mortgage-backed securities issued by U.S. Government agencies or sponsored enterprises |  |
Assets |  |
Investment securities available for sale | 812,023 | 805,945
Fair Value, Measurements, Recurring Basis | Corporate debt securities and other debt securities |  |
Assets |  |
Investment securities available for sale | 8,766 | 8,601
Fair Value, Measurements, Recurring Basis | Level 1 |  |
Assets |  |
Trading securities | 0 | 0
Investment securities available for sale | 480,280 | 471,813
Mortgage loans held for sale | 0 | 0
Other investments | 0 | 0
Mutual funds and mutual funds held in rabbi trusts | 48,428 | 42,659
SBA loans servicing asset | 0 | 0
Derivative assets | 0 | 0
Liabilities |  |
Securities sold short | 3,152 | 3,370
Mutual funds held in rabbi trusts | 33,470 | 27,944
Derivative liabilities | 0 | 0
Fair Value, Measurements, Recurring Basis | Level 1 | Collateralized mortgage obligations issued by U.S. Government agencies or sponsored enterprises |  |
Assets |  |
Trading securities | 0 | 0
Investment securities available for sale | 0 | 0
Fair Value, Measurements, Recurring Basis | Level 1 | Other mortgage-backed securities |  |
Assets |  |
Trading securities | 0 | 0
Fair Value, Measurements, Recurring Basis | Level 1 | State and municipal securities |  |
Assets |  |
Trading securities | 0 | 0
Fair Value, Measurements, Recurring Basis | Level 1 | Asset-backed securities |  |
Assets |  |
Trading securities | 0 | 0
Fair Value, Measurements, Recurring Basis | Level 1 | Other Investments |  |
Assets |  |
Trading securities | 0 | 0
Fair Value, Measurements, Recurring Basis | Level 1 | U.S. Treasury securities |  |
Assets |  |
Investment securities available for sale | 480,280 | 471,813
Fair Value, Measurements, Recurring Basis | Level 1 | U.S. Government agency securities |  |
Assets |  |
Investment securities available for sale | 0 | 0
Fair Value, Measurements, Recurring Basis | Level 1 | Mortgage-backed securities issued by U.S. Government agencies |  |
Assets |  |
Investment securities available for sale | 0 | 0
Fair Value, Measurements, Recurring Basis | Level 1 | Mortgage-backed securities issued by U.S. Government sponsored enterprises |  |
Assets |  |
Investment securities available for sale | 0 | 0
Fair Value, Measurements, Recurring Basis | Level 1 | Commercial mortgage-backed securities issued by U.S. Government agencies or sponsored enterprises |  |
Assets |  |
Investment securities available for sale | 0 | 0
Fair Value, Measurements, Recurring Basis | Level 1 | Corporate debt securities and other debt securities |  |
Assets |  |
Investment securities available for sale | 0 | 0
Fair Value, Measurements, Recurring Basis | Level 2 |  |
Assets |  |
Trading securities | 25,915 | 8,295
Investment securities available for sale | 9,252,338 | 9,206,290
Mortgage loans held for sale | 44,400 | 51,136
Other investments | 0 | 0
Mutual funds and mutual funds held in rabbi trusts | 0 | 0
SBA loans servicing asset | 0 | 0
Derivative assets | 88,257 | 89,815
Liabilities |  |
Securities sold short | 0 | 0
Mutual funds held in rabbi trusts | 0 | 0
Derivative liabilities | 318,999 | 339,227
Fair Value, Measurements, Recurring Basis | Level 2 | Collateralized mortgage obligations issued by U.S. Government agencies or sponsored enterprises |  |
Assets |  |
Trading securities | 2,954 | 2,991
Investment securities available for sale | 648,559 | 655,127
Fair Value, Measurements, Recurring Basis | Level 2 | Other mortgage-backed securities |  |
Assets |  |
Trading securities | 2,909 | 3,185
Fair Value, Measurements, Recurring Basis | Level 2 | State and municipal securities |  |
Assets |  |
Trading securities | 69 | 48
Fair Value, Measurements, Recurring Basis | Level 2 | Asset-backed securities |  |
Assets |  |
Trading securities | 19,185 | 2,071
Fair Value, Measurements, Recurring Basis | Level 2 | Other Investments |  |
Assets |  |
Trading securities | 798 | 0
Fair Value, Measurements, Recurring Basis | Level 2 | U.S. Treasury securities |  |
Assets |  |
Investment securities available for sale | 0 | 0
Fair Value, Measurements, Recurring Basis | Level 2 | U.S. Government agency securities |  |
Assets |  |
Investment securities available for sale | 48,945 | 48,798
Fair Value, Measurements, Recurring Basis | Level 2 | Mortgage-backed securities issued by U.S. Government agencies |  |
Assets |  |
Investment securities available for sale | 708,545 | 792,749
Fair Value, Measurements, Recurring Basis | Level 2 | Mortgage-backed securities issued by U.S. Government sponsored enterprises |  |
Assets |  |
Investment securities available for sale | 7,025,500 | 6,895,070
Fair Value, Measurements, Recurring Basis | Level 2 | Commercial mortgage-backed securities issued by U.S. Government agencies or sponsored enterprises |  |
Assets |  |
Investment securities available for sale | 812,023 | 805,945
Fair Value, Measurements, Recurring Basis | Level 2 | Corporate debt securities and other debt securities |  |
Assets |  |
Investment securities available for sale | 8,766 | 8,601
Fair Value, Measurements, Recurring Basis | Level 3 |  |
Assets |  |
Trading securities | 0 | 0
Investment securities available for sale | 0 | 0
Mortgage loans held for sale | 0 | 0
Other investments | 11,655 | 11,172
Mutual funds and mutual funds held in rabbi trusts | 0 | 0
SBA loans servicing asset | 2,412 | 2,354
Derivative assets | 0 | 0
Liabilities |  |
Securities sold short | 0 | 0
Mutual funds held in rabbi trusts | 0 | 0
Derivative liabilities | 1,111 | 3,453
Fair Value, Measurements, Recurring Basis | Level 3 | Collateralized mortgage obligations issued by U.S. Government agencies or sponsored enterprises |  |
Assets |  |
Trading securities | 0 | 0
Investment securities available for sale | 0 | 0
Fair Value, Measurements, Recurring Basis | Level 3 | Other mortgage-backed securities |  |
Assets |  |
Trading securities | 0 | 0
Fair Value, Measurements, Recurring Basis | Level 3 | State and municipal securities |  |
Assets |  |
Trading securities | 0 | 0
Fair Value, Measurements, Recurring Basis | Level 3 | Asset-backed securities |  |
Assets |  |
Trading securities | 0 | 0
Fair Value, Measurements, Recurring Basis | Level 3 | Other Investments |  |
Assets |  |
Trading securities | 0 | 0
Fair Value, Measurements, Recurring Basis | Level 3 | U.S. Treasury securities |  |
Assets |  |
Investment securities available for sale | 0 | 0
Fair Value, Measurements, Recurring Basis | Level 3 | U.S. Government agency securities |  |
Assets |  |
Investment securities available for sale | 0 | 0
Fair Value, Measurements, Recurring Basis | Level 3 | Mortgage-backed securities issued by U.S. Government agencies |  |
Assets |  |
Investment securities available for sale | 0 | 0
Fair Value, Measurements, Recurring Basis | Level 3 | Mortgage-backed securities issued by U.S. Government sponsored enterprises |  |
Assets |  |
Investment securities available for sale | 0 | 0
Fair Value, Measurements, Recurring Basis | Level 3 | Commercial mortgage-backed securities issued by U.S. Government agencies or sponsored enterprises |  |
Assets |  |
Investment securities available for sale | 0 | 0
Fair Value, Measurements, Recurring Basis | Level 3 | Corporate debt securities and other debt securities |  |
Assets |  |
Investment securities available for sale | $ 0 | $ 0

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- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. 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