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Fair Value Measurements - Carrying Values and Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | --- | ---
ASSETS |  |  |  |  |
Securities |  | $ 784,283 | $ 684,872 |  |
FHLB and other restricted stock |  | 22,977 | 29,435 |  |
LIABILITIES |  |  |  |  |
Junior subordinated debt securities |  | 64,277 | 45,619 |  | $ 45,619
Carrying Value |  |  |  |  |
ASSETS |  |  |  |  |
Cash and due from banks, including interest-bearing deposits | [1] | 197,823 | 155,489 |  |
Securities | [1] | 784,283 | 684,872 |  |
Loans held for sale | [1] | 5,256 | 2,371 |  |
Portfolio loans, net | [1] | 7,074,928 | 5,885,652 |  |
Bank owned life insurance | [1] | 80,473 | 73,900 |  |
FHLB and other restricted stock | [1] | 22,977 | 29,435 |  |
Securities held in a Rabbi Trust | [1] | 5,987 | 4,725 |  |
Mortgage servicing rights | [1] | 4,662 | 4,464 |  |
LIABILITIES |  |  |  |  |
Deposits | [1] | 7,036,576 | 5,673,922 |  |
Securities sold under repurchase agreements | [1] | 19,888 | 18,383 |  |
Short-term borrowings | [1] | 281,319 | 470,000 |  |
Long-term borrowings | [1] | 50,868 | 70,314 |  |
Junior subordinated debt securities | [1] | 64,277 | 45,619 |  |
Carrying Value | Interest rate swaps |  |  |  |  |
ASSETS |  |  |  |  |
Derivative financial assets | [1] | 25,647 | 5,504 |  |
LIABILITIES |  |  |  |  |
Derivative financial liabilities | [1] | 25,615 | 5,340 |  |
Carrying Value | Interest rate lock commitments |  |  |  |  |
ASSETS |  |  |  |  |
Derivative financial assets | [1] | 321 | 251 |  |
Carrying Value | Forward sale contracts |  |  |  |  |
ASSETS |  |  |  |  |
Derivative financial assets |  | 1 | 55 | [1] |
Fair Value Measurements |  |  |  |  |
ASSETS |  |  |  |  |
Cash and due from banks, including interest-bearing deposits |  | 197,823 | 155,489 |  |
Securities |  | 784,283 | 684,872 |  |
Loans held for sale |  | 5,256 | 2,469 |  |
Portfolio loans, net |  | 6,940,875 | 5,728,843 |  |
Bank owned life insurance |  | 80,473 | 73,900 |  |
FHLB and other restricted stock |  | 22,977 | 29,435 |  |
Securities held in a Rabbi Trust |  | 5,987 | 4,725 |  |
Mortgage servicing rights |  | 4,650 | 5,181 |  |
LIABILITIES |  |  |  |  |
Deposits |  | 7,034,595 | 5,662,193 |  |
Securities sold under repurchase agreements |  | 19,888 | 18,383 |  |
Short-term borrowings |  | 281,319 | 470,000 |  |
Long-term borrowings |  | 51,339 | 70,578 |  |
Junior subordinated debt securities |  | 64,277 | 45,619 |  |
Fair Value Measurements | Interest rate swaps |  |  |  |  |
ASSETS |  |  |  |  |
Derivative financial assets |  | 25,647 | 5,504 |  |
LIABILITIES |  |  |  |  |
Derivative financial liabilities |  | 25,615 | 5,340 |  |
Fair Value Measurements | Interest rate lock commitments |  |  |  |  |
ASSETS |  |  |  |  |
Derivative financial assets |  | 321 | 251 |  |
Fair Value Measurements | Forward sale contracts |  |  |  |  |
ASSETS |  |  |  |  |
Derivative financial assets |  | 1 | 55 |  |
Fair Value Measurements | Level 1 |  |  |  |  |
ASSETS |  |  |  |  |
Cash and due from banks, including interest-bearing deposits |  | 197,823 | 155,489 |  |
Securities |  | 5,078 | 0 |  |
Loans held for sale |  | 0 | 0 |  |
Portfolio loans, net |  | 0 | 0 |  |
Bank owned life insurance |  | 0 | 0 |  |
FHLB and other restricted stock |  | 0 | 0 |  |
Securities held in a Rabbi Trust |  | 5,987 | 4,725 |  |
Mortgage servicing rights |  | 0 | 0 |  |
LIABILITIES |  |  |  |  |
Deposits |  | 5,441,143 | 4,261,884 |  |
Securities sold under repurchase agreements |  | 19,888 | 18,383 |  |
Short-term borrowings |  | 281,319 | 470,000 |  |
Long-term borrowings |  | 4,678 | 38,610 |  |
Junior subordinated debt securities |  | 64,277 | 45,619 |  |
Fair Value Measurements | Level 1 | Interest rate swaps |  |  |  |  |
ASSETS |  |  |  |  |
Derivative financial assets |  | 0 | 0 |  |
LIABILITIES |  |  |  |  |
Derivative financial liabilities |  | 0 | 0 |  |
Fair Value Measurements | Level 1 | Interest rate lock commitments |  |  |  |  |
ASSETS |  |  |  |  |
Derivative financial assets |  | 0 | 0 |  |
Fair Value Measurements | Level 1 | Forward sale contracts |  |  |  |  |
ASSETS |  |  |  |  |
Derivative financial assets |  | 0 | 0 |  |
Fair Value Measurements | Level 2 |  |  |  |  |
ASSETS |  |  |  |  |
Cash and due from banks, including interest-bearing deposits |  | 0 | 0 |  |
Securities |  | 779,205 | 684,872 |  |
Loans held for sale |  | 0 | 0 |  |
Portfolio loans, net |  | 0 | 0 |  |
Bank owned life insurance |  | 80,473 | 73,900 |  |
FHLB and other restricted stock |  | 0 | 0 |  |
Securities held in a Rabbi Trust |  | 0 | 0 |  |
Mortgage servicing rights |  | 0 | 0 |  |
LIABILITIES |  |  |  |  |
Deposits |  | 1,593,452 | 1,400,309 |  |
Securities sold under repurchase agreements |  | 0 | 0 |  |
Short-term borrowings |  | 0 | 0 |  |
Long-term borrowings |  | 46,661 | 31,968 |  |
Junior subordinated debt securities |  | 0 | 0 |  |
Fair Value Measurements | Level 2 | Interest rate swaps |  |  |  |  |
ASSETS |  |  |  |  |
Derivative financial assets |  | 25,647 | 5,504 |  |
LIABILITIES |  |  |  |  |
Derivative financial liabilities |  | 25,615 | 5,340 |  |
Fair Value Measurements | Level 2 | Interest rate lock commitments |  |  |  |  |
ASSETS |  |  |  |  |
Derivative financial assets |  | 321 | 251 |  |
Fair Value Measurements | Level 2 | Forward sale contracts |  |  |  |  |
ASSETS |  |  |  |  |
Derivative financial assets |  | 1 | 55 |  |
Fair Value Measurements | Level 3 |  |  |  |  |
ASSETS |  |  |  |  |
Cash and due from banks, including interest-bearing deposits |  | 0 | 0 |  |
Securities |  | 0 | 0 |  |
Loans held for sale |  | 5,256 | 2,469 |  |
Portfolio loans, net |  | 6,940,875 | 5,728,843 |  |
Bank owned life insurance |  | 0 | 0 |  |
FHLB and other restricted stock |  | 22,977 | 29,435 |  |
Securities held in a Rabbi Trust |  | 0 | 0 |  |
Mortgage servicing rights |  | 4,650 | 5,181 |  |
LIABILITIES |  |  |  |  |
Deposits |  | 0 | 0 |  |
Securities sold under repurchase agreements |  | 0 | 0 |  |
Short-term borrowings |  | 0 | 0 |  |
Long-term borrowings |  | 0 |  |  |
Junior subordinated debt securities |  | 0 | 0 |  |
Fair Value Measurements | Level 3 | Interest rate swaps |  |  |  |  |
ASSETS |  |  |  |  |
Derivative financial assets |  | 0 | 0 |  |
LIABILITIES |  |  |  |  |
Derivative financial liabilities |  | 0 | 0 |  |
Fair Value Measurements | Level 3 | Interest rate lock commitments |  |  |  |  |
ASSETS |  |  |  |  |
Derivative financial assets |  | 0 | 0 |  |
Fair Value Measurements | Level 3 | Forward sale contracts |  |  |  |  |
ASSETS |  |  |  |  |
Derivative financial assets |  | $ 0 | $ 0 |  |
[1] | As reported in the Consolidated Balance Sheets

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- Definition Carrying value as of the balance sheet date of long-term debt (with maturities initially due after one year or beyond the operating cycle if longer) identified as Junior Subordinated Notes, which have a lower priority than senior instruments, excluding current portion. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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