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Available-for-Sale Securities (Details) $ in Millions	Sep. 30, 2025 USD ($)	Dec. 31, 2024 USD ($)
Available-for-Sale Securities [Abstract]
Fair value of securities pledged as collateral	$ 148.9	$ 115.5
Securities delivered for repurchase agreements	26.2	17.3
Total fair value of investments	$ 192.2	$ 201.3
Number of securities	127	138
Fair value investments percentage	91.00%	99.00%
Accrued interest receivable on available-for-sale debt securities	$ 0.6	$ 0.6

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- Definition

Percentage of investment in available for sale securities.

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Number of securities.

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- Definition

Amount, after allowance for credit loss, of accrued interest on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2A
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-2A

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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-Publisher FASB
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- Definition

Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
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Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef
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The carrying value of securities purchased to be resold in reverse repurchase transactions as of the balance sheet date.

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- Definition

The carrying amount (fair value) as of the balance sheet date of securities held that had been pledged by counterparties under financing and lending arrangements, pursuant to which the entity has the right by agreement or custom to sell or re-pledge such securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-5

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