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Loans and Leases - Schedule of Loans and Leases (Details) - USD ($) $ in Thousands | Jun. 30, 2018 | Dec. 31, 2017
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | $ 4,795,025 | $ 4,672,909
Less: unearned income and deferred costs and fees | (3,832) | (3,789)
Total loans and leases, net of unearned income and deferred costs and fees | 4,791,193 | 4,669,120
Originated |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 4,510,838 | 4,362,332
Less: unearned income and deferred costs and fees | (3,832) | (3,789)
Total loans and leases, net of unearned income and deferred costs and fees | 4,507,006 | 4,358,543
Acquired |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 284,187 | 310,577
Less: unearned income and deferred costs and fees | 0 | 0
Total loans and leases, net of unearned income and deferred costs and fees | 284,187 | 310,577
Commercial and industrial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 1,080,641 | 1,091,651
Commercial and industrial | Agriculture |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 95,618 | 108,608
Commercial and industrial | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 985,023 | 983,043
Commercial and industrial | Originated |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 1,034,676 | 1,040,675
Commercial and industrial | Originated | Agriculture |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 95,618 | 108,608
Commercial and industrial | Originated | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 939,058 | 932,067
Commercial and industrial | Acquired |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 45,965 | 50,976
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 | 45,965 | 50,976
Commercial real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 2,305,227 | 2,200,727
Commercial real estate | Agriculture |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 143,465 | 129,959
Commercial real estate | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 1,927,408 | 1,866,802
Commercial real estate | Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 234,354 | 203,966
Commercial real estate | Originated |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 2,113,837 | 1,992,980
Commercial real estate | Originated | Agriculture |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 143,229 | 129,712
Commercial real estate | Originated | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 1,737,686 | 1,660,782
Commercial real estate | Originated | Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 232,922 | 202,486
Commercial real estate | Acquired |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 191,390 | 207,747
Commercial real estate | Acquired | Agriculture |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 236 | 247
Commercial real estate | Acquired | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 189,722 | 206,020
Commercial real estate | Acquired | Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 1,432 | 1,480
Residential real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 1,329,611 | 1,302,941
Residential real estate | Home equity |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 232,245 | 241,256
Residential real estate | Mortgages |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 1,097,366 | 1,061,685
Residential real estate | Originated |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 1,283,685 | 1,251,852
Residential real estate | Originated | Home equity |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 207,820 | 212,812
Residential real estate | Originated | Mortgages |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 1,075,865 | 1,039,040
Residential real estate | Acquired |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 45,926 | 51,089
Residential real estate | Acquired | Home equity |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 24,425 | 28,444
Residential real estate | Acquired | Mortgages |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 21,501 | 22,645
Consumer and other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 65,085 | 63,123
Consumer and other | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 53,034 | 50,979
Consumer and other | Indirect |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 12,051 | 12,144
Consumer and other | Originated |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 64,179 | 62,358
Consumer and other | Originated | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 52,128 | 50,214
Consumer and other | Originated | Indirect |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 12,051 | 12,144
Consumer and other | Acquired |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 906 | 765
Consumer and other | Acquired | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 906 | 765
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 | 14,461 | 14,467
Leases | Originated |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | 14,461 | 14,467
Leases | Acquired |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases | $ 0 | $ 0

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- Definition Amount of deferred interest and fee income, unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of acquired loans. Excludes amounts for loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84159169&loc=d3e10152-111534 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5074-111524 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (a)(4) -URI http://asc.fasb.org/extlink&oid=84165051&loc=d3e45377-112738 + Details
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