Fair Value of Financial Instruments - Assets at Fair Value on a Recurring Basis (Details) - Fair Value - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Investments, fair value disclosure	$ 568,610	$ 643,432
Level 1
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Investments, fair value disclosure	57,278	46,436
Level 2
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Investments, fair value disclosure	56,670	78,298
Level 3
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Investments, fair value disclosure	454,662	518,698
Bond
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Investments, fair value disclosure	54	62
Bond \| Level 1
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Investments, fair value disclosure	0	0
Bond \| Level 2
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Investments, fair value disclosure	54	62
Bond \| Level 3
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Investments, fair value disclosure	0	0
Common stock
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Investments, fair value disclosure	177,968	204,264
Common stock \| Level 1
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Investments, fair value disclosure	57,278	46,436
Common stock \| Level 2
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Investments, fair value disclosure	0	0
Common stock \| Level 3
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Investments, fair value disclosure	120,690	157,828
Convertible notes
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Investments, fair value disclosure	11,994	20,846
Convertible notes \| Level 1
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Investments, fair value disclosure	0	0
Convertible notes \| Level 2
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Investments, fair value disclosure	0	0
Convertible notes \| Level 3
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Investments, fair value disclosure	11,994	20,846
LLC interest
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Investments, fair value disclosure	54,488	36,777
LLC interest \| Level 1
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Investments, fair value disclosure	0	0
LLC interest \| Level 2
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Investments, fair value disclosure	0	0
LLC interest \| Level 3
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Investments, fair value disclosure	54,488	36,777
LP interest
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Investments, fair value disclosure	203,730	266,055
LP interest \| Level 1
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Investments, fair value disclosure	0	0
LP interest \| Level 2
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Investments, fair value disclosure	56,558	76,396
LP interest \| Level 3
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Investments, fair value disclosure	147,172	189,659
Preferred Shares
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Investments, fair value disclosure	73,388	69,895
Preferred Shares \| Level 1
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Investments, fair value disclosure	0	0
Preferred Shares \| Level 2
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Investments, fair value disclosure	0	0
Preferred Shares \| Level 3
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Investments, fair value disclosure	73,388	69,895
Rights and warrants
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Investments, fair value disclosure	4	1,788
Rights and warrants \| Level 1
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Investments, fair value disclosure	0	0
Rights and warrants \| Level 2
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Investments, fair value disclosure	0	1,788
Rights and warrants \| Level 3
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Investments, fair value disclosure	4	0
Senior loan
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Investments, fair value disclosure	46,984	43,745
Senior loan \| Level 1
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Investments, fair value disclosure	0	0
Senior loan \| Level 2
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Investments, fair value disclosure	58	52
Senior loan \| Level 3
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Investments, fair value disclosure	$ 46,926	$ 43,693