Goodwill and Other Acquisition-Related Intangible Assets - Narrative (Details) - USD ($) $ in Thousands |
3 Months Ended | |
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Mar. 31, 2026 |
Mar. 31, 2025 |
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| Indefinite-lived Intangible Assets [Line Items] | ||
| Amortization of other acquisition-related intangible assets | $ 4,958 | $ 5,618 |
| Community banking | Core deposit intangibles | ||
| Indefinite-lived Intangible Assets [Line Items] | ||
| Amortization period in years, other intangible assets | 10 years | |
| Specialty finance | Customer list intangibles | ||
| Indefinite-lived Intangible Assets [Line Items] | ||
| Amortization period in years, other intangible assets | 18 years | |
| Wealth management | Customer list and other intangibles | ||
| Indefinite-lived Intangible Assets [Line Items] | ||
| Amortization period in years, other intangible assets | 10 years | |
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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
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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. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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