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Loans and Leases - Loans Receivable to Loans Held for Sale (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017
Financing Receivable, Reclassification From Portfolio Loans To Loans Held For Sale [Roll Forward] |  |
Balance at beginning of period | $ 6,394 | $ 9,316
Originations | 79,146 | 109,111
Sales | (75,951) | (111,977)
Principal payoffs and amortization | (199) | (56)
Balance at end of period | 9,390 | 6,394
Real estate loans |  |
Financing Receivable, Reclassification From Portfolio Loans To Loans Held For Sale [Roll Forward] |  |
Balance at beginning of period | 3,746 | 7,410
Originations | 39,243 | 70,710
Sales | (37,790) | (74,344)
Principal payoffs and amortization | (5) | (30)
Balance at end of period | 5,194 | 3,746
Commercial and industrial loans |  |
Financing Receivable, Reclassification From Portfolio Loans To Loans Held For Sale [Roll Forward] |  |
Balance at beginning of period | 2,648 | 1,906
Originations | 39,903 | 38,401
Sales | (38,161) | (37,633)
Principal payoffs and amortization | (194) | (26)
Balance at end of period | $ 4,196 | $ 2,648

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- Definition Financing Receivable, Reclassification From Loans Receivable To Loans Held For Sale [Roll Forward] + References No definition available. + Details
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- Definition Principal payoffs and amortization. + References No definition available. + Details
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- Definition Amount, after allowance for bad debt, of loan receivables held-for-sale that are not part of a disposal group. Excludes loans and leases covered under loss sharing agreements and loans classified as debt securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=82891408&loc=d3e4428-111522 + Details
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- Definition The amount of cash paid for the origination of mortgages that are held for sale. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3536-108585 + Details
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- Definition The cash inflow resulting from the sale of loans classified as held-for-sale, including proceeds from loans sold through mortgage securitization. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 16 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3337-108585 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3461-108585 + Details
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