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Fair Value Measurements (Details) - USD ($) $ in Thousands | Sep. 30, 2018 | Dec. 31, 2017
--- | --- | ---
ASSETS |  |  |
Equity Securities, FV-NI |  | $ 20,430 |
Debt Securities, Available-for-sale |  | 435,861 | $ 447,498
Loans held for sale (at fair value) |  | 10,431 | 4,768
Derivative Asset, Fair Value, Gross Asset |  | 29,768 | 17,318
Equity Securities [Member] |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  |  | 20,584
U.S. Government agency securities |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 31,572 | 35,430
Available for sale |  | 31,572 |
Agency mortgage-backed securities |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 207,523 | 215,764
Available for sale |  | 207,523 |
Pooled trust preferred securities issued by banks and insurers |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 1,800 | 1,640
Available for sale |  | 1,800 |
Small Business Administration Pooled Securities [Member] |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 54,336 | 47,778
Available for sale |  | 54,336 |
Recurring fair value measurements |  |  |
ASSETS |  |  |
Debt Securities, Trading |  | 1,581 | 1,324
LIABILITIES |  |  |
TOTAL RECURRING FAIR VALUE MEASUREMENTS |  | 469,858 | 455,373
Recurring fair value measurements | Equity Securities [Member] |  |  |
ASSETS |  |  |
Equity Securities, FV-NI |  | 20,430 |
Available for sale |  |  | 20,584
Recurring fair value measurements | U.S. Government agency securities |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 31,572 | 35,430
Recurring fair value measurements | Agency mortgage-backed securities |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 207,523 | 215,764
Recurring fair value measurements | Agency collateralized mortgage obligations |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 137,645 | 122,012
Recurring fair value measurements | Municipal Bonds [Member] |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 1,981 | 2,274
Recurring fair value measurements | Single issuer trust preferred securities issued by banks and insurers |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 1,004 | 2,016
Recurring fair value measurements | Pooled trust preferred securities issued by banks and insurers |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 1,800 | 1,640
Recurring fair value measurements | Small Business Administration Pooled Securities [Member] |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 54,336 | 47,778
Recurring fair value measurements | Loans held for sale |  |  |
ASSETS |  |  |
Loans held for sale (at fair value) |  | 10,431 | 4,768
Recurring fair value measurements | Derivative Financial Instruments, Assets [Member] |  |  |
ASSETS |  |  |
Derivative Asset, Fair Value, Gross Asset |  | 30,001 | 17,476
Recurring fair value measurements | Derivative instruments |  |  |
LIABILITIES |  |  |
Financial and Nonfinancial Liabilities, Fair Value Disclosure |  | 28,446 | 15,693
Nonrecurring fair value measurements |  |  |
LIABILITIES |  |  |
TOTAL NONRECURRING FAIR VALUE MEASUREMENTS |  | 32,199 | 34,179
Nonrecurring fair value measurements | Collateral dependent impaired loans |  |  |
ASSETS |  |  |
Assets, Fair Value Disclosure |  | 32,009 | 33,567
Nonrecurring fair value measurements | Other real estate owned and other foreclosed assets |  |  |
ASSETS |  |  |
Assets, Fair Value Disclosure |  | 190 | 612
Quoted Prices in Active Markets for Identical Assets (Level 1) | Recurring fair value measurements |  |  |
ASSETS |  |  |
Debt Securities, Trading |  | 1,581 | 1,324
LIABILITIES |  |  |
TOTAL RECURRING FAIR VALUE MEASUREMENTS |  | 22,011 | 21,908
Quoted Prices in Active Markets for Identical Assets (Level 1) | Recurring fair value measurements | Equity Securities [Member] |  |  |
ASSETS |  |  |
Equity Securities, FV-NI |  | 20,430 |
Available for sale |  |  | 20,584
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 |  | 446,047 | 431,825
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Equity Securities [Member] |  |  |
ASSETS |  |  |
Equity Securities, FV-NI |  | 0 |
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | U.S. Government agency securities |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 31,572 | 35,430
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Agency mortgage-backed securities |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 207,523 | 215,764
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Agency collateralized mortgage obligations |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 137,645 | 122,012
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Municipal Bonds [Member] |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 1,981 | 2,274
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 |  | 1,004 | 2,016
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Small Business Administration Pooled Securities [Member] |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 54,336 | 47,778
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Loans held for sale |  |  |
ASSETS |  |  |
Available for sale |  | 10,431 | 4,768
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Derivative Financial Instruments, Assets [Member] |  |  |
ASSETS |  |  |
Derivative Asset, Fair Value, Gross Asset |  | 30,001 | 17,476
Significant Other Observable Inputs (Level 2) | Recurring fair value measurements | Derivative instruments |  |  |
LIABILITIES |  |  |
Financial and Nonfinancial Liabilities, Fair Value Disclosure |  | 28,446 | 15,693
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 |  | 1,800 | 1,640
Significant Unobservable Inputs (Level 3) | Recurring fair value measurements | Equity Securities [Member] |  |  |
ASSETS |  |  |
Equity Securities, FV-NI |  | 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 | Pooled trust preferred securities issued by banks and insurers |  |  |
ASSETS |  |  |
Debt Securities, Available-for-sale |  | 1,800 | 1,640
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) | Recurring fair value measurements | Other real estate owned and other foreclosed assets |  |  |
ASSETS |  |  |
Assets, Fair Value Disclosure | [1] | 190 | 612
Significant Unobservable Inputs (Level 3) | Nonrecurring fair value measurements |  |  |
LIABILITIES |  |  |
TOTAL NONRECURRING FAIR VALUE MEASUREMENTS |  | 32,199 | 34,179
Significant Unobservable Inputs (Level 3) | Nonrecurring fair value measurements | Collateral dependent impaired loans |  |  |
ASSETS |  |  |
Assets, Fair Value Disclosure |  | 32,009 | 33,567
Significant Unobservable Inputs (Level 3) | Nonrecurring fair value measurements | Other real estate owned and other foreclosed assets |  |  |
ASSETS |  |  |
Assets, Fair Value Disclosure |  | $ 190 | $ 612
[1] | Fair value is generally determined through independent appraisals of the underlying collateral, 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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