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Loans - Activity for Loans Held for Sale (Detail) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2021 | Mar. 31, 2020
Financing Receivable, Reclassification From Portfolio Loans To Loans Held For Sale [Roll Forward] |  |
Balance at beginning of period | $ 8,568 | $ 6,020
Originations and transfers | 146,670 | 12,197
Sales | (122,564) | (18,212)
Principal paydowns and amortization |  | (5)
Balance at end of period | 32,674 |
Real Estate |  |
Financing Receivable, Reclassification From Portfolio Loans To Loans Held For Sale [Roll Forward] |  |
Balance at beginning of period | 8,042 | 2,943
Originations and transfers | 16,283 | 6,494
Sales | (13,395) | (9,432)
Principal paydowns and amortization |  | (5)
Balance at end of period | 10,930 |
Commercial and Industrial |  |
Financing Receivable, Reclassification From Portfolio Loans To Loans Held For Sale [Roll Forward] |  |
Balance at beginning of period | 526 | 3,077
Originations and transfers | 130,387 | 5,703
Sales | (109,169) | $ (8,780)
Balance at end of period | $ 21,744 |

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- Definition Financing Receivable, Reclassification From Portfolio Loans 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, before valuation allowance, of financing receivable classified as held-for-sale. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 310 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=120238483&loc=d3e48678-111004 + 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://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3536-108585 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3461-108585 + 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=121586364&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=121586364&loc=d3e3461-108585 + Details
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