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Investments - Additional Information (Details)	3 Months Ended	12 Months Ended
	Mar. 31, 2024 loan borrower	Dec. 31, 2023 loan borrower
Schedule of Investments [Line Items]
Number of borrowers | borrower	1	1,000
Number of loans in non-accrual status | loan	2	1,000
Debt Securities, Variable Rate | Investments At Fair Value | Investment Type Concentration Risk
Schedule of Investments [Line Items]
Concentration percentage	99.80%	99.90%
Debt Securities, Fixed Rate | Investments At Fair Value | Investment Type Concentration Risk
Schedule of Investments [Line Items]
Concentration percentage	0.20%	0.10%

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Reference 63: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 320
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480032/946-320-S99-6

Reference 64: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 320
-Name Accounting Standards Codification
-Section S99
-Paragraph 19
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480032/946-320-S99-19

Reference 65: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
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-Section S99
-Paragraph 19
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