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Investment Securities - Narrative (Details) |  | 3 Months Ended |
--- | --- | --- | ---
Jan. 01, 2022 USD ($) | Mar. 31, 2022 USD ($) security | Mar. 31, 2021 USD ($) | Dec. 31, 2021 USD ($)
Investments, Debt and Equity Securities [Abstract] |  |  |  |
Held-to-maturity, book value | $ 320,100,000 |  |  |
Fair Value | 309,700,000 | $ 288,810,000 |  |
Available-for-sale to held-to-maturity, transfer unrealized loss | $ 10,400,000 |  |  |
Proceeds from sales of investment securities, available-for-sale |  | 3,061,000 | $ 1,643,000 |
Gross realized gain on sale |  | 24,000 | 1,000 |
Gross realized loss on sale |  | 0 | $ 5,000 |
Investment securities pledged as collateral |  | $ 268,900,000 |  | $ 126,500,000
Number of securities that have unrealized losses | security |  | 343 |  |
Number of held to maturity securities that have unrealized losses | security |  | 77 |  |
Securities deemed to be other than temporary |  | $ 0 |  |

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- Definition Amount of unrealized gain (loss) recognized in earnings from transfer of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) to investment in debt security measured at fair value with change in fair value recognized in net income (trading). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27357-111563 + Details
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- Definition Number of investments in debt securities measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27290-111563 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=124269663&loc=SL82922888-210455 + Details
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- Definition The amount by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 8A -URI http://asc.fasb.org/extlink&oid=124260329&loc=SL6284422-111562 + Details
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