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Investments - Allowance for Credit Loss on Beneficial Interests (Details) - Investment in beneficial interests - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
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Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for expected credit losses, beginning balance | $ (9,082) | $ 0 | $ (6,880) | $ 0
Reclassification to non-credit discount from the allowance for changes in payment expectations | 857 | 0 | 1,773 | 0
Net change in the allowance for credit losses | (857) | 0 | (3,975) | 0
Allowance for expected credit losses, ending balance | $ (9,082) | $ 0 | $ (9,082) | $ 0

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- Definition Debt Securities, Available-for-sale, Allowance for Credit Loss, Incremental Adjustment + References No definition available. + Details
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- Definition Debt Securities, Available-for-sale, Allowance for Credit Loss, Reversal (Expense) of Provisions For Credit Losses + References No definition available. + Details
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- Definition Amount of allowance for credit loss 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 2 -Subparagraph (aaa) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479130/326-30-45-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479106/326-30-50-9 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479106/326-30-50-9 + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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