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v3.23.2

Investment Securities - Narrative (Details) $ in Thousands | 6 Months Ended |
--- | --- | ---
Jun. 30, 2023 USD ($) security | Jun. 30, 2022 USD ($) | Dec. 31, 2022 USD ($) security
Investment securities total | $ 1,300,000 |  | $ 1,400,000
Securities with no stated contractual date, amortized cost | 800 |  |
Securities with no stated contractual date, fair value | 800 |  |
Amortized cost | 772,243 |  | 819,762
Available-for-sale Securities | 659,347 |  | 706,289
Held-to-maturity securities | 619,400 |  | $ 651,527
Purchases of available-for-sale securities | 0 | $ 260,246 |
Maturities and paydowns of available-for-sale securities | 47,550 | 79,103 |
Sales of available-for-sale securities | $ 0 | 0 |
Number of securities | security | 241 |  | 244
Purchases of held-to-maturity securities | $ 2,452 | 44,309 |
Maturities and paydowns of held-to-maturity securities | $ 34,891 | $ 69,734 |
Number of held-to-maturity securities in unrealized loss positions | security | 155 |  | 129
Held-to-maturity investment securities pledged as collateral | $ 613,500 |  | $ 355,300
Held-to-maturity investment securities held as collateral | $ 0 |  | $ 0
Type of held-to-maturity investment securities collateral | Asset Pledged as Collateral |  | Asset Pledged as Collateral
Accrued interest receivable from available-for-sale investment securities | $ 1,400 |  | $ 1,500
Accrued interest receivable from held-to-maturity investment securities | 1,000 |  | 1,100
Asset Pledged as Collateral |  |  |
Available-for-sale Securities | 0 |  | 0
Asset Pledged as Collateral | Federal Funds Purchased [Member] |  |  |
Available-for-sale Securities | $ 203,000 |  | $ 484,900
Financing Receivable, Pledging Purpose [Extensible Enumeration] | Noninterest-bearing Deposit Liabilities |  | Noninterest-bearing Deposit Liabilities
Asset Pledged as Collateral | Federal Home Loan Bank Advances [Member] |  |  |
Available-for-sale Securities | $ 0 |  | $ 0
Financing Receivable, Pledging Purpose [Extensible Enumeration] | Noninterest-bearing Deposit Liabilities |  |

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- Definition Disclosure regarding factors used to determine that the impairment of securities categorized as held-to-maturity where cost exceeds fair value is not an other than temporary impairment (OTTI). This item contains disclosure of the number of investment positions in the held-to-maturity investments determined to be temporarily impaired. + References No definition available. + Details
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- Definition Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), without single maturity date and not allocated over maturity grouping. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-3 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-2 + Details
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