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Derivatives (Effects of Derivative Instruments in the Statements of Income) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Derivative income reflected in income statement | $ (5,878) | $ 10,380 | $ (10,062) | $ 23,453
Derivatives Designated as Hedging Instruments [Member] | Cash Flow Hedge [Member] | Interest Rate Swaps - Variable Rate Loans [Member] |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Derivative income reflected in income statement | $ (9,492) | $ 6,013 | $ (17,493) | $ 12,767
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Interest and Fee Income, Loan and Lease, Held-in-Portfolio | Interest and Fee Income, Loan and Lease, Held-in-Portfolio | Interest and Fee Income, Loan and Lease, Held-in-Portfolio | Interest and Fee Income, Loan and Lease, Held-in-Portfolio
Derivatives Designated as Hedging Instruments [Member] | Fair Value Hedging [Member] | Interest Rate Swaps - Securities [Member] |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Derivative income reflected in income statement | $ 3,013 | $ (129) | $ 5,763 | $ 1,029
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Interest Income, Securities, Operating, Taxable | Interest Income, Securities, Operating, Taxable | Interest Income, Securities, Operating, Taxable | Interest Income, Securities, Operating, Taxable
Derivatives Designated as Hedging Instruments [Member] | Fair Value Hedging [Member] | Securities Termination [Member] |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Derivative income reflected in income statement | $ 0 | $ 0 | $ 0 | $ 1,620
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Debt and Equity Securities, Gain (Loss) | Debt and Equity Securities, Gain (Loss) | Debt and Equity Securities, Gain (Loss) | Debt and Equity Securities, Gain (Loss)
Derivatives Not Designated as Hedging Instruments [Member] |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Derivative income reflected in income statement | $ 584 | $ 2,728 | $ 1,167 | $ 5,077
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Noninterest Income, Other | Noninterest Income, Other | Noninterest Income, Other | Noninterest Income, Other
Derivatives Not Designated as Hedging Instruments [Member] | Residential mortgage banking |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Derivative income reflected in income statement | $ 17 | $ 1,768 | $ 501 | $ 2,960
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Noninterest Income | Noninterest Income | Noninterest Income | Noninterest Income

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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4A -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480434/815-10-50-4A + Details
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- Definition Indicates line item in statement of income or comprehensive income that includes gain (loss) from derivative. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4A -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480434/815-10-50-4A + Details
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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. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4E -Publisher FASB -URI https://asc.fasb.org//1943274/2147480434/815-10-50-4E + Details
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