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Loans and Leases - Schedule of Loans and Leases (Details) - USD ($) $ in Thousands | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | $ 4,793,446 | $ 4,837,735
Less: unearned income and deferred costs and fees | (3,746) | (3,796)
Total loans and leases, net of unearned income and deferred costs and fees | 4,789,700 | 4,833,939
Originated |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 4,536,549 | 4,572,537
Less: unearned income and deferred costs and fees | (3,746) | (3,796)
Total loans and leases, net of unearned income and deferred costs and fees | 4,532,803 | 4,568,741
Acquired |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 256,897 | 265,198
Less: unearned income and deferred costs and fees | 0 | 0
Total loans and leases, net of unearned income and deferred costs and fees | 256,897 | 265,198
Commercial and industrial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 1,048,186 | 1,077,635
Commercial and industrial | Agriculture |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 94,737 | 107,494
Commercial and industrial | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 953,449 | 970,141
Commercial and industrial | Originated |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 1,005,521 | 1,033,923
Commercial and industrial | Originated | Agriculture |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 94,737 | 107,494
Commercial and industrial | Originated | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 910,784 | 926,429
Commercial and industrial | Acquired |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 42,665 | 43,712
Commercial and industrial | Acquired | Agriculture |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 0 | 0
Commercial and industrial | Acquired | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 42,665 | 43,712
Commercial real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 2,345,954 | 2,340,661
Commercial real estate | Agriculture |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 170,747 | 170,229
Commercial real estate | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 2,006,665 | 2,004,763
Commercial real estate | Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 168,542 | 165,669
Commercial real estate | Originated |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 2,172,205 | 2,161,569
Commercial real estate | Originated | Agriculture |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 170,528 | 170,005
Commercial real estate | Originated | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 1,834,496 | 1,827,279
Commercial real estate | Originated | Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 167,181 | 164,285
Commercial real estate | Acquired |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 173,749 | 179,092
Commercial real estate | Acquired | Agriculture |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 219 | 224
Commercial real estate | Acquired | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 172,169 | 177,484
Commercial real estate | Acquired | Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 1,361 | 1,384
Residential real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 1,314,016 | 1,333,894
Residential real estate | Home equity |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 223,124 | 229,608
Residential real estate | Mortgages |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 1,090,892 | 1,104,286
Residential real estate | Originated |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 1,274,344 | 1,292,261
Residential real estate | Originated | Home equity |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 203,538 | 208,459
Residential real estate | Originated | Mortgages |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 1,070,806 | 1,083,802
Residential real estate | Acquired |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 39,672 | 41,633
Residential real estate | Acquired | Home equity |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 19,586 | 21,149
Residential real estate | Acquired | Mortgages |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 20,086 | 20,484
Consumer and other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 70,126 | 70,989
Consumer and other | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 56,696 | 58,326
Consumer and other | Indirect |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 13,430 | 12,663
Consumer and other | Originated |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 69,315 | 70,228
Consumer and other | Originated | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 55,885 | 57,565
Consumer and other | Originated | Indirect |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 13,430 | 12,663
Consumer and other | Acquired |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 811 | 761
Consumer and other | Acquired | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 811 | 761
Consumer and other | Acquired | Indirect |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 0 | 0
Leases |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 15,164 | 14,556
Leases | Originated |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 15,164 | 14,556
Leases | Acquired |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | $ 0 | $ 0

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