Fair Value (Narrative) (Details) - USD ($) |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
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| Fair Value Measurements [Line Items] | |||||
| Investments measured at net asset value based on an ownership interest in partners' | 1.00% | 1.00% | 1.00% | ||
| Securities transferred between Level 2 and Level 3 | $ 0 | $ 0 | $ 0 | $ 0 | |
| Fair Value Measured Using NAV [Member] | |||||
| Fair Value Measurements [Line Items] | |||||
| Investments measured at fair value using net asset value | $ 61,200,000 | $ 61,200,000 | $ 64,100,000 | ||
| Investment, Type [Extensible Enumeration] | srt:PartnershipInterestMember | srt:PartnershipInterestMember | srt:PartnershipInterestMember | ||
| Level 3 [Member] | |||||
| Fair Value Measurements [Line Items] | |||||
| Investments measured at fair value using net asset value | $ 3,400,000 | $ 3,400,000 | $ 3,400,000 | ||
| Liabilities held | 0 | $ 0 | 0 | $ 0 | |
| Valuation for equity security based on dealer quote | $ 11,300,000 | $ 11,300,000 | |||
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- Definition Fair Value Measurements [Line Items] No definition available.
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- Definition Fair value transfers between level 2 and level 3 amount. No definition available.
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- Definition Percentage Of Investments Not Included In Fair Value Of Financial Instruments No definition available.
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- Definition Valuation for equity security based on dealer quote. No definition available.
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- Definition Fair value of investment other than investment in equity security, investment in debt security and equity method investment. Includes, but is not limited to, investment in certain entities that calculate net asset value per share. Example includes, but is not limited to, investment in hedge fund, venture capital fund, private equity fund, and real estate partnership or fund. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Indicates type of investment. Includes, but is not limited to, common stock, preferred stock, convertible security, fixed income security, government security, option purchased, warrant, loan participation and assignment, commercial paper, bankers' acceptance, certificates of deposit, short-term security, repurchase agreement, and other investment company. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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