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Fair Value Measurements (Details 1) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
ASSETS |  |  |
Trading |  | $ 4,384 | $ 4,987
Equity |  | 21,028 | 22,510
Recurring fair value measurements |  |  |
ASSETS |  |  |
Trading |  | 4,384 | 4,987
LIABILITIES |  |  |
TOTAL RECURRING FAIR VALUE MEASUREMENTS |  | 1,235,298 | 1,338,201
Recurring fair value measurements | Equity Securities [Member] |  |  |
ASSETS |  |  |
Equity |  | 21,028 | 22,510
Recurring fair value measurements | U.S. government agency securities |  |  |
ASSETS |  |  |
Available for sale (amortized cost $1,344,856 and $1,459,862) |  | 205,882 | 207,138
Recurring fair value measurements | Agency mortgage-backed securities |  |  |
ASSETS |  |  |
Available for sale (amortized cost $1,344,856 and $1,459,862) |  | 266,060 | 277,047
Recurring fair value measurements | Agency collateralized mortgage obligations |  |  |
ASSETS |  |  |
Available for sale (amortized cost $1,344,856 and $1,459,862) |  | 30,931 | 33,189
Recurring fair value measurements | Municipal Bonds [Member] |  |  |
ASSETS |  |  |
Available for sale (amortized cost $1,344,856 and $1,459,862) |  | 190 | 190
Recurring fair value measurements | Pooled trust preferred securities issued by banks and insurers |  |  |
ASSETS |  |  |
Available for sale (amortized cost $1,344,856 and $1,459,862) |  | 1,037 | 1,018
Recurring fair value measurements | Small Business Administration Pooled Securities [Member] |  |  |
ASSETS |  |  |
Available for sale (amortized cost $1,344,856 and $1,459,862) |  | 43,141 | 46,572
Recurring fair value measurements | Loans held for sale |  |  |
ASSETS |  |  |
Loans Held-for-sale, Fair Value Disclosure |  | 17,850 | 6,368
Recurring fair value measurements | Derivative Financial Instruments, Assets [Member] |  |  |
ASSETS |  |  |
Derivative Asset, Fair Value, Gross Asset |  | 119,746 | 103,948
Recurring fair value measurements | Derivative instruments |  |  |
LIABILITIES |  |  |
Financial and Nonfinancial Liabilities, Fair Value Disclosure |  | 148,366 | 133,868
Recurring fair value measurements | US Treasury Securities [Member] |  |  |
ASSETS |  |  |
Available for sale (amortized cost $1,344,856 and $1,459,862) |  | 673,415 | 769,102
Nonrecurring fair value measurements |  |  |
LIABILITIES |  |  |
TOTAL NONRECURRING FAIR VALUE MEASUREMENTS |  | 25,853 | 28,881
Nonrecurring fair value measurements | Collateral Dependent Loans [Member] |  |  |
ASSETS |  |  |
Assets, Fair Value Disclosure | [1] | 25,853 | 28,881
Quoted Prices in Active Markets for Identical Assets (Level 1) | Recurring fair value measurements |  |  |
ASSETS |  |  |
Trading |  | 4,384 | 4,987
LIABILITIES |  |  |
TOTAL RECURRING FAIR VALUE MEASUREMENTS |  | 25,412 | 27,497
Quoted Prices in Active Markets for Identical Assets (Level 1) | Recurring fair value measurements | Equity Securities [Member] |  |  |
ASSETS |  |  |
Equity |  | 21,028 | 22,510
Quoted Prices in Active Markets for Identical Assets (Level 1) | Recurring fair value measurements | Municipal Bonds [Member] |  |  |
ASSETS |  |  |
Available for sale (amortized cost $1,344,856 and $1,459,862) |  |  | 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Recurring fair value measurements | Small Business Administration Pooled Securities [Member] |  |  |
ASSETS |  |  |
Available for sale (amortized cost $1,344,856 and $1,459,862) |  | 0 | 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Nonrecurring fair value measurements |  |  |
LIABILITIES |  |  |
TOTAL NONRECURRING FAIR VALUE MEASUREMENTS |  | 0 | 0
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements |  |  |
LIABILITIES |  |  |
TOTAL RECURRING FAIR VALUE MEASUREMENTS |  | 1,209,886 | 1,310,704
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Equity Securities [Member] |  |  |
ASSETS |  |  |
Equity |  | 0 | 0
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | U.S. government agency securities |  |  |
ASSETS |  |  |
Available for sale (amortized cost $1,344,856 and $1,459,862) |  | 205,882 | 207,138
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Agency mortgage-backed securities |  |  |
ASSETS |  |  |
Available for sale (amortized cost $1,344,856 and $1,459,862) |  | 266,060 | 277,047
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Agency collateralized mortgage obligations |  |  |
ASSETS |  |  |
Available for sale (amortized cost $1,344,856 and $1,459,862) |  | 30,931 | 33,189
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Municipal Bonds [Member] |  |  |
ASSETS |  |  |
Available for sale (amortized cost $1,344,856 and $1,459,862) |  | 190 | 190
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Pooled trust preferred securities issued by banks and insurers |  |  |
ASSETS |  |  |
Available for sale (amortized cost $1,344,856 and $1,459,862) |  | 1,037 | 1,018
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Small Business Administration Pooled Securities [Member] |  |  |
ASSETS |  |  |
Available for sale (amortized cost $1,344,856 and $1,459,862) |  | 43,141 | 46,572
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Loans held for sale |  |  |
ASSETS |  |  |
Loans Held-for-sale, Fair Value Disclosure |  | 17,850 | 6,368
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Derivative Financial Instruments, Assets [Member] |  |  |
ASSETS |  |  |
Derivative Asset, Fair Value, Gross Asset |  | 119,746 | 103,948
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Derivative instruments |  |  |
LIABILITIES |  |  |
Financial and Nonfinancial Liabilities, Fair Value Disclosure |  | 148,366 | 133,868
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | US Treasury Securities [Member] |  |  |
ASSETS |  |  |
Available for sale (amortized cost $1,344,856 and $1,459,862) |  | 673,415 | 769,102
Significant Other Observable Inputs (Level 2) | Nonrecurring fair value measurements |  |  |
LIABILITIES |  |  |
TOTAL NONRECURRING FAIR VALUE MEASUREMENTS |  | 0 | 0
Significant Unobservable Inputs (Level 3) | Recurring fair value measurements |  |  |
LIABILITIES |  |  |
TOTAL RECURRING FAIR VALUE MEASUREMENTS |  | 0 | 0
Significant Unobservable Inputs (Level 3) | Recurring fair value measurements | Equity Securities [Member] |  |  |
ASSETS |  |  |
Equity |  | 0 | 0
Significant Unobservable Inputs (Level 3) | Recurring fair value measurements | Municipal Bonds [Member] |  |  |
ASSETS |  |  |
Available for sale (amortized cost $1,344,856 and $1,459,862) |  |  | 0
Significant Unobservable Inputs (Level 3) | Recurring fair value measurements | Small Business Administration Pooled Securities [Member] |  |  |
ASSETS |  |  |
Available for sale (amortized cost $1,344,856 and $1,459,862) |  | 0 | 0
Significant Unobservable Inputs (Level 3) | Nonrecurring fair value measurements |  |  |
LIABILITIES |  |  |
TOTAL NONRECURRING FAIR VALUE MEASUREMENTS |  | 25,853 | 28,881
Significant Unobservable Inputs (Level 3) | Nonrecurring fair value measurements | Collateral Dependent Loans [Member] |  |  |
ASSETS |  |  |
Assets, Fair Value Disclosure | [1] | $ 25,853 | $ 28,881
[1] | The carrying value of individually assessed collateral dependent loans is based on the lower of amortized cost or fair value of the underlying collateral less costs to sell. The fair value of the underlying collateral is generally determined through independent appraisals, which generally include various Level 3 inputs which are not identifiable. Appraisals may be adjusted by management for qualitative factors such as economic factors and estimated liquidation expenses. The range of these possible adjustments may vary.

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