Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Financial assets:
Investment securities - available for sale	$ 531,075	$ 689,202
Investment securities, trading	8,175	4,610
Investment securities – held to maturity	7,547	7,851
Carrying Amount
Financial assets:
Investment securities - available for sale	531,075	689,202
Investment securities, trading	8,175	4,610
Total financial assets	4,027,098	4,088,471
Financial liabilities:
Total financial liabilities	3,857,968	3,921,604
Fair Value
Financial assets:
Investment securities - available for sale	531,075	689,202
Investment securities, trading	8,175	4,610
Total financial assets	3,962,367	4,114,395
Financial liabilities:
Total financial liabilities	3,840,089	3,910,205
Level 1 \| Carrying Amount
Financial assets:
Cash and cash equivalents	47,242	60,024
Level 1 \| Fair Value
Financial assets:
Cash and cash equivalents	47,242	60,024
Level 2 \| Carrying Amount
Financial assets:
Investment securities – held to maturity	7,838	7,932
Loans held for sale	4,204	3,794
Financial liabilities:
Deposits	3,358,915	3,373,798
Short-term borrowings	227,059	237,865
Long-term FHLB advances	87,808	139,140
Subordinated notes	98,491	98,416
Junior subordinated debentures	21,497	21,416
Other liabilities	57,928	49,071
Level 2 \| Carrying Amount \| Interest rate swaps
Financial assets:
Derivative assets	6,318	1,895
Financial liabilities:
Derivative liabilities	6,269	1,895
Level 2 \| Carrying Amount \| RPAs purchased
Financial assets:
Derivative assets	65	21
Level 2 \| Carrying Amount \| RPAs sold
Financial liabilities:
Derivative liabilities	1	3
Level 2 \| Fair Value
Financial assets:
Investment securities – held to maturity	7,547	7,851
Loans held for sale	4,204	3,794
Financial liabilities:
Deposits	3,340,565	3,368,276
Short-term borrowings	227,059	237,865
Long-term FHLB advances	86,963	138,685
Subordinated notes	97,629	95,044
Junior subordinated debentures	23,675	19,366
Other liabilities	57,928	49,071
Level 2 \| Fair Value \| Interest rate swaps
Financial assets:
Derivative assets	6,318	1,895
Financial liabilities:
Derivative liabilities	6,269	1,895
Level 2 \| Fair Value \| RPAs purchased
Financial assets:
Derivative assets	65	21
Level 2 \| Fair Value \| RPAs sold
Financial liabilities:
Derivative liabilities	1	3
Level 3 \| Carrying Amount
Financial assets:
Net portfolio loans and leases	3,370,103	3,268,333
MSRs	5,511	5,861
Other assets	46,567	46,799
Level 3 \| Fair Value
Financial assets:
Net portfolio loans and leases	3,304,479	3,293,802
MSRs	6,695	6,397
Other assets	$ 46,567	$ 46,799

Fair value portion of junior subordinated debt.

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Fair value portion of long-term FHLB advances and other borrowings.

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Fair value portion of mortgage servicing rights.

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Fair value portion of subordinated debt.

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Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Fair value portion of deposit liabilities held by the entity, including, but not limited to, foreign and domestic, interest and noninterest bearing, demand deposits, saving deposits, negotiable orders of withdrawal (NOW) and time deposits.

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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. Includes assets not subject to a master netting arrangement and not elected to be offset.

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Fair value, after the effects of master netting arrangements, of a financial liability or 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. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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Fair value of investment in debt security measured at amortized cost (held-to-maturity).

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Fair value of financial and nonfinancial obligations.

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Fair value portion of loans held-for-sale including, but not limited to, mortgage loans and finance receivables.

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Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

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Fair value portion of other assets.

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Fair value portion of other liabilities.

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This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents the amount of short-term debt existing as of the balance sheet date.

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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).

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