Fair Value - Debt Portfolio (Details) - Unsecured Senior Notes - USD ($) $ in Millions	Sep. 30, 2026	Dec. 31, 2025
Debt Instrument
Total principal outstanding	$ 50.0	$ 50.0
Level 2 inputs
Debt Instrument
Fair value of debt	$ 49.5	$ 51.7

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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+ Details

- 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.

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+ Details

- Definition

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

+ References

+ Details