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Loans Held for Sale - Composition of Loans Held for Sale (Detail) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
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Receivables Held-for-sale [Abstract] |  |
Commercial and industrial loans, at lower of cost or fair value | $ 0 | $ 55,683
Commercial real estate non-owner occupied loans, at lower of cost or fair value | 0 | 17,251
Total commercial loans held for sale | 0 | 72,934
Home equity conversion mortgages, at lower of cost or fair value | 507 | 643
Residential mortgage loans, at fair value | 15,747 | 5,509
Total consumer loans held for sale | 16,254 | 6,152
Loans held for sale | 16,254 | 79,086
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans held for sale | 16,254 | 79,086
Nonperforming |  |
Receivables Held-for-sale [Abstract] |  |
Loans held for sale | 500 | 18,500
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans held for sale | $ 500 | $ 18,500

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- Definition Loans Receivable Held-for-sale, Net, Not Part of Disposal Group, Consumer + References No definition available. + Details
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- Definition Loans Receivable Held-for-sale, Net, Not Part of Disposal Group, Commercial, Real Estate1 + References No definition available. + Details
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- Definition Amount, after valuation allowance, of financing receivable held for sale and not part of disposal group. Excludes loan covered under loss sharing agreement and loan classified as investment in debt security. + 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=124259787&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=124265262&loc=d3e48678-111004 + Details
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