Borrowings (Narrative) (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Federal Home Loan Bank, Advance, Branch of FHLBank [Line Items]
Borrowings	$ 3,100,000	$ 3,950,000
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged	19,200,000
Federal Funds Purchased	0	0
Federal Home Loan Bank, Advances, General Debt Obligations, Amount of Available, Unused Funds	7,800,000
Federal Funds Purchased
Federal Home Loan Bank, Advance, Branch of FHLBank [Line Items]
Federal Reserve Bank Current Borrowing Capacity	600,000
FRB Bank Team Funding Program \| Federal Reserve Bank Advances
Federal Home Loan Bank, Advance, Branch of FHLBank [Line Items]
FRB Borrowings, Collateral Pledged	0	$ 1,400,000
Discount Window [Member] \| Federal Reserve Bank Advances
Federal Home Loan Bank, Advance, Branch of FHLBank [Line Items]
Federal Reserve Bank Current Borrowing Capacity	$ 4,900,000

Other Short-term Borrowings, Collateral Pledged

No definition available.

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- Definition

Amount of short term borrowing where a bank borrows, at the federal funds rate, from another bank.

+ References

+ 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

No definition available.

+ Details

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- Definition

Amount of advances or credit lines available from the Federal Home Loan Bank (FHLB).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22)(b))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(13)(3)(a))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 470
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478878/942-470-45-1

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- Definition

Amount of the collateral pledged in support of federal home loan bank advances outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 470
-Name Accounting Standards Codification
-Section 45
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478878/942-470-45-1

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-URI https://asc.fasb.org/1943274/2147477734/942-470-50-3

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- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

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- Definition

The carrying amount as of the balance sheet date for the aggregate of other miscellaneous borrowings owed by the reporting entity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
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