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Goodwill and Other Intangible Assets - Amortization expense (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Estimated amortization expense |  |
Net carrying amount | $ 83,193 | $ 88,776
Other intangibles, excluding the SBA servicing assets |  |
Estimated amortization expense |  |
June 30, 2024 | 5,744 |
September 30, 2024 | 5,327 |
December 31, 2024 | 5,326 |
March 31, 2025 | 5,100 |
June 30, 2025 | 4,836 |
Thereafter | 50,493 |
Net carrying amount | $ 76,826 |

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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 926 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org//1943274/2147483154/926-20-50-5 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-2 + Details
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