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Investment Securities - Proceeds from Calls and Sales, Realized Gains and Losses and Interest Income Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Proceeds from calls and sales of investment securities and other assets |  |  |  |
Proceeds from calls of investment securities | $ 300 | $ 700 | $ 1,500 | $ 1,100
Proceeds from sales of investment securities | 0 | 0 | 0 | 2,500
Debt Securities, Available-for-sale, Realized Gain (Loss) [Abstract] |  |  |  |
Gross realized gains on sales of investment securities | 0 | 0 | 0 | 100
Gross realized losses on sales of investment securities | 0 | 0 | 0 | 0
Income tax expense related to net realized gains on sale of investment securities | 0 | 0 | 0 | 0
Interest income from taxable and nontaxable investment securities |  |  |  |
Interest income from taxable investment securities | 33,800 | 22,900 | 94,500 | 67,500
Interest income from non-taxable investment securities | $ 3,800 | $ 2,300 | $ 10,100 | $ 5,500

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- Definition Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27357-111563 + Details
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- Definition Amount of realized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27357-111563 + Details
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