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Loans and Leases Receivable and Allowance for Credit Losses - Summary of Loans Modified in Troubled Debt Restructurings and Related Recorded Investment (Detail) $ in Thousands | 6 Months Ended
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Jun. 30, 2020 USD ($) Loan | Jun. 30, 2019 USD ($) Loan
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Number of loans | Loan | 5 | 4
Recorded Investment | $ | $ 1,271 | $ 108
Manufactured housing |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Number of loans | Loan | 0 | 3
Recorded Investment | $ | $ 0 | $ 108
Commercial and industrial |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Number of loans | Loan | 0 | 1
Recorded Investment | $ | $ 0 | $ 0
Commercial real estate owner occupied |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Number of loans | Loan | 1 | 0
Recorded Investment | $ | $ 958 | $ 0
Residential real estate |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Number of loans | Loan | 4 | 0
Recorded Investment | $ | $ 313 | $ 0

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- Definition Number of financing receivable contracts modified as troubled debt restructuring within previous 12 months, with subsequent payment default. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953682-111524 + Details
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- Definition Amount of financing receivable modified as troubled debt restructuring within previous 12 months, with subsequent payment default. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953682-111524 + Details
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