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Fair Value Measurement (Fair Value Assets And Liabilities Measured On Nonrecurring Basis) (Details) - USD ($) $ in Thousands | Jun. 30, 2025 | Dec. 31, 2024
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Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Assets measured at fair value | $ 9,184,321 | $ 8,810,088
Level 1 |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Assets measured at fair value | 306,214 | 380,971
Level 2 |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Assets measured at fair value | 8,774,766 | 8,320,743
Level 3 |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Assets measured at fair value | 103,341 | 108,374
Fair Value, Nonrecurring | Loans and leases |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Assets measured at fair value | 22,854 | 28,177
Fair Value, Nonrecurring | Loans and leases | Level 1 |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Assets measured at fair value | 0 | 0
Fair Value, Nonrecurring | Loans and leases | Level 2 |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Assets measured at fair value | 0 | 0
Fair Value, Nonrecurring | Loans and leases | Level 3 |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Assets measured at fair value | $ 22,854 | $ 28,177

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