Capital (Mandatorily Redeemable Capital Stock) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Banking Regulation, Total Capital [Abstract]
Interest Expense, Capital Securities	$ 300	$ 100
Balance, beginning of the period			$ 12,344	$ 7,025
Capital stock subject to mandatory redemption reclassified from capital	12,248		12,886	0
Redemption/repurchase of mandatorily redeemable capital stock			(11,851)	(794)
Balance, end of the period	$ 13,379	$ 6,231	$ 13,379	$ 6,231
Capital stock, Par value Per Share	$ 100		$ 100		$ 100

No definition available.

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- Definition

Face amount or stated value per share of common stock.

+ References

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-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

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- Definition

Interest expense incurred during the reporting period on capital securities issued by the reporting entity.

+ References

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-Topic 942
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04(8))
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- Definition

Value of net shares reclassified to mandatorily redeemable capital stock.

+ References

No definition available.

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- Definition

The cash outflow related to equity securities that embody an unconditional obligation requiring the issuer to redeem the securities by transferring the assets at a specified or determinable date (or dates) that is (or are) initially more than one year (or the normal operating cycle, if longer) from the issuance date, or upon an event that is certain to occur beyond one year (or the normal operating cycle, if longer) from the issuance date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 15
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-15

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- Definition

Amount that would be paid, determined under the conditions specified in the contract, if the holder of the share has the right to redeem the shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 480
-SubTopic 10
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-Topic 480
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-Section 50
-Paragraph 2
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481648/480-10-50-2

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