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Fair Value Measurements (Details 1) - USD ($) $ in Thousands | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
ASSETS |  |  |
Trading |  | $ 3,637 | $ 3,720
Equity Securities, FV-NI |  | 21,181 | 23,173
Debt Securities, Available-for-sale |  | 1,501,949 | 1,571,148
U.S. government agency securities |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 209,455 | 215,482
Agency mortgage-backed securities |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 377,790 | 363,933
Pooled trust preferred securities issued by banks and insurers |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 999 | 1,000
Small Business Administration Pooled Securities [Member] |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 59,465 | 48,914
US Treasury Securities [Member] |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 809,098 | 861,448
Recurring fair value measurements |  |  |
ASSETS |  |  |
Trading |  | 3,637 | 3,720
LIABILITIES |  |  |
TOTAL RECURRING FAIR VALUE MEASUREMENTS |  | 1,514,305 | 1,644,617
Recurring fair value measurements | Equity Securities [Member] |  |  |
ASSETS |  |  |
Equity Securities, FV-NI |  | 21,181 | 23,173
Recurring fair value measurements | U.S. government agency securities |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 209,455 | 215,482
Recurring fair value measurements | Agency mortgage-backed securities |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 377,790 | 363,933
Recurring fair value measurements | Agency collateralized mortgage obligations |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 44,477 | 79,677
Recurring fair value measurements | Municipal Bonds [Member] |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 197 | 203
Recurring fair value measurements | Single issuer trust preferred securities issued by banks and insurers |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 468 | 491
Recurring fair value measurements | Pooled trust preferred securities issued by banks and insurers |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 999 | 1,000
Recurring fair value measurements | Small Business Administration Pooled Securities [Member] |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 59,465 | 48,914
Recurring fair value measurements | Loans held for sale |  |  |
ASSETS |  |  |
Loans Held-for-sale, Fair Value Disclosure |  | 2,358 | 24,679
Recurring fair value measurements | Derivative Financial Instruments, Assets [Member] |  |  |
ASSETS |  |  |
Derivative Asset, Fair Value, Gross Asset |  | 84,042 | 97,912
Recurring fair value measurements | Derivative instruments |  |  |
LIABILITIES |  |  |
Financial and Nonfinancial Liabilities, Fair Value Disclosure |  | 98,862 | 76,015
Recurring fair value measurements | US Treasury Securities [Member] |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 809,098 | 861,448
Nonrecurring fair value measurements |  |  |
LIABILITIES |  |  |
TOTAL NONRECURRING FAIR VALUE MEASUREMENTS |  | 24,649 | 1,174
Nonrecurring fair value measurements | Collateral Dependent Loans [Member] |  |  |
ASSETS |  |  |
Assets, Fair Value Disclosure | [1] | 24,649 | 1,174
Quoted Prices in Active Markets for Identical Assets (Level 1) | Recurring fair value measurements |  |  |
ASSETS |  |  |
Trading |  | 3,637 | 3,720
LIABILITIES |  |  |
TOTAL RECURRING FAIR VALUE MEASUREMENTS |  | 24,818 | 26,893
Quoted Prices in Active Markets for Identical Assets (Level 1) | Recurring fair value measurements | Equity Securities [Member] |  |  |
ASSETS |  |  |
Equity Securities, FV-NI |  | 21,181 | 23,173
Quoted Prices in Active Markets for Identical Assets (Level 1) | Recurring fair value measurements | Municipal Bonds [Member] |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  |  | 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Recurring fair value measurements | Small Business Administration Pooled Securities [Member] |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 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 |  | 1,489,487 | 1,617,724
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Equity Securities [Member] |  |  |
ASSETS |  |  |
Equity Securities, FV-NI |  | 0 | 0
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | U.S. government agency securities |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 209,455 | 215,482
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Agency mortgage-backed securities |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 377,790 | 363,933
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Agency collateralized mortgage obligations |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 44,477 | 79,677
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Municipal Bonds [Member] |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 197 | 203
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Single issuer trust preferred securities issued by banks and insurers |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 468 | 491
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Pooled trust preferred securities issued by banks and insurers |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 999 | 1,000
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Small Business Administration Pooled Securities [Member] |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 59,465 | 48,914
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Loans held for sale |  |  |
ASSETS |  |  |
Loans Held-for-sale, Fair Value Disclosure |  | 2,358 | 24,679
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Derivative Financial Instruments, Assets [Member] |  |  |
ASSETS |  |  |
Derivative Asset, Fair Value, Gross Asset |  | 84,042 | 97,912
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Derivative instruments |  |  |
LIABILITIES |  |  |
Financial and Nonfinancial Liabilities, Fair Value Disclosure |  | 98,862 | 76,015
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | US Treasury Securities [Member] |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 809,098 | 861,448
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 Securities, FV-NI |  | 0 | 0
Significant Unobservable Inputs (Level 3) | Recurring fair value measurements | Municipal Bonds [Member] |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  |  | 0
Significant Unobservable Inputs (Level 3) | Recurring fair value measurements | Small Business Administration Pooled Securities [Member] |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 0 | 0
Significant Unobservable Inputs (Level 3) | Nonrecurring fair value measurements |  |  |
LIABILITIES |  |  |
TOTAL NONRECURRING FAIR VALUE MEASUREMENTS |  | 24,649 | 1,174
Significant Unobservable Inputs (Level 3) | Nonrecurring fair value measurements | Collateral Dependent Loans [Member] |  |  |
ASSETS |  |  |
Assets, Fair Value Disclosure | [1] | $ 24,649 | $ 1,174
[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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