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Fair Value of Financial Instruments - Difference Between Fair Value and Unpaid Principal Balance (Details) - USD ($) | Dec. 31, 2021 | Dec. 31, 2020
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Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Aggregate Fair Value | $ 44,529,000 | $ 164,591,000
Aggregate Unpaid Principal Balance | 43,447,000 | 157,333,000
Difference | 1,082,000 | 7,258,000
Nonaccrual mortgage loans held for sale recorded at fair value | 1,800,000 | 681,000
Loans for which the fair value had been elected that were designated as nonaccrual or past due 90 days or more | 0 | 0
Loans held for sale |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Aggregate Fair Value | 37,032,000 | 136,026,000
Aggregate Unpaid Principal Balance | 36,072,000 | 129,955,000
Difference | 960,000 | 6,071,000
Commercial real estate LHFI |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Aggregate Fair Value |  | 17,011,000
Aggregate Unpaid Principal Balance |  | 16,760,000
Difference |  | 251,000
Securities carried at fair value through income |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Aggregate Fair Value | 7,497,000 | 11,554,000
Aggregate Unpaid Principal Balance | 7,375,000 | 10,618,000
Difference | 122,000 | 936,000
U.S. government agency securities |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Loans, 90 days or more past due | $ 1,200,000 | $ 473,000

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- Definition This item represents the difference between the aggregate fair value and the aggregate unpaid principal balance of loans and long-term receivables (other than securities categorized as trading, available-for-sale or held-to-maturity) that have contractual principal amounts and for which the fair value option has been elected. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 28 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=123596393&loc=d3e14064-108612 + Details
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- Definition This item represents the aggregate fair value of loans held as assets that are 90 days or more past due for which the fair value option has been elected. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 28 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=123596393&loc=d3e14064-108612 + Details
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- Definition This item represents the aggregate fair value of loans held as assets that are in nonaccrual status for which the fair value option has been elected, if the entity's policy is to recognize interest income separately from other changes in fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 28 -Subparagraph (e)(2) -URI http://asc.fasb.org/extlink&oid=123596393&loc=d3e14064-108612 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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