Borrowings - Revolving Credit Facility (Details) € in Thousands, £ in Thousands, $ in Thousands					12 Months Ended
	Oct. 29, 2024 USD ($)	Oct. 28, 2024	Jul. 24, 2024 USD ($)	Oct. 20, 2023 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2024 AUD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2023 AUD ($)	Dec. 31, 2022 USD ($)	Feb. 20, 2025 USD ($)	Dec. 31, 2024 AUD ($)	Dec. 31, 2024 GBP (£)	Dec. 31, 2024 EUR (€)	Dec. 31, 2023 AUD ($)	Dec. 31, 2023 GBP (£)	Dec. 31, 2023 EUR (€)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Line of Credit Facility [Line Items]
Debt					$ 2,151,713,000		$ 1,247,946,000
Unrealized gain (loss) on foreign currency and other transactions					2,732,000		(28,000)		$ 1,000
Net assets					2,059,727,000		1,302,667,000		$ 754,916,000								$ 369,448,000	$ 137,513,000	$ 68,745,000
Interest expense - Revolving Credit Facility | Revolving Credit Agreement
Line of Credit Facility [Line Items]
Maximum borrowing capacity				$ 295,000,000	652,500,000
Accordion feature, total facility amount	$ 800,000,000			$ 800,000,000
Debt					$ 396,100,000		$ 240,800,000
Unrealized gain (loss) on foreign currency and other transactions						$ 2,737		$ (29)
Weighted average interest rate					7.00%		7.90%				7.00%	7.00%	7.00%	7.90%	7.90%	7.90%
Revolving credit facility maximum borrowing capacity percentage				72.50%
Net assets			$ 500,000,000	$ 500,000,000
Amount equal to net assets			$ 660,865,000	$ 1,063,400,000
Percentage equal to net assets			65.00%	65.00%
Ratio of total assets to total liabilities				1.5
Senior debt coverage ratio				2
Minimum net worth equal required				$ 500,000,000
Distributions in cash or property other than common stock percentage				1.15
Interest expense - Revolving Credit Facility | Revolving Credit Agreement | Subsequent Event
Line of Credit Facility [Line Items]
Maximum borrowing capacity										$ 682,500,000
Interest expense - Revolving Credit Facility | Revolving Credit Agreement | Alternate base rate | Rating Condition Not Satisfied
Line of Credit Facility [Line Items]
Interest rate, basis spread	1.25%	1.50%
Interest expense - Revolving Credit Facility | Revolving Credit Agreement | Alternate base rate | Rating Condition Satisfied
Line of Credit Facility [Line Items]
Interest rate, basis spread	1.15%	1.35%
Interest expense - Revolving Credit Facility | Revolving Credit Agreement | SOFR, CORRA , Eurocurrency, And RFR Rates | Rating Condition Not Satisfied
Line of Credit Facility [Line Items]
Interest rate, basis spread	2.25%	2.50%
Interest expense - Revolving Credit Facility | Revolving Credit Agreement | SOFR, CORRA , Eurocurrency, And RFR Rates | Rating Condition Satisfied
Line of Credit Facility [Line Items]
Interest rate, basis spread	2.15%	2.35%
Interest expense - Revolving Credit Facility | Revolving Credit Agreement | Interest rate in case of any U.S. dollar advances | Alternate base rate
Line of Credit Facility [Line Items]
Interest rate, basis spread				1.25%
Interest expense - Revolving Credit Facility | Revolving Credit Agreement | Interest rate in case of any U.S. dollar advances | Adjusted Term SOFR
Line of Credit Facility [Line Items]
Interest rate, basis spread				2.25%
Interest expense - Revolving Credit Facility | Revolving Credit Agreement | Interest rate in case of any U.S. dollar advances | Applicable benchmark rate
Line of Credit Facility [Line Items]
Interest rate, basis spread				2.25%
Interest expense - Revolving Credit Facility | Revolving Credit Agreement | Interest rate in case of any U.S. dollar advances | Daily Simple RFR
Line of Credit Facility [Line Items]
Interest rate, basis spread				2.50%
Interest expense - Revolving Credit Facility | Revolving Credit Agreement | Interest rate in case of any U.S. dollar advances at any time the Rating Condition is satisfied | Alternate base rate
Line of Credit Facility [Line Items]
Interest rate, basis spread				1.15%
Interest expense - Revolving Credit Facility | Revolving Credit Agreement | Interest rate in case of any U.S. dollar advances at any time the Rating Condition is satisfied | Adjusted Term SOFR
Line of Credit Facility [Line Items]
Interest rate, basis spread				2.15%
Interest expense - Revolving Credit Facility | Revolving Credit Agreement | Interest rate in case of any U.S. dollar advances at any time the Rating Condition is satisfied | Applicable benchmark rate
Line of Credit Facility [Line Items]
Interest rate, basis spread				2.15%
Interest expense - Revolving Credit Facility | Revolving Credit Agreement | Interest rate in case of any U.S. dollar advances at any time the Rating Condition is satisfied | Daily Simple RFR
Line of Credit Facility [Line Items]
Interest rate, basis spread				2.35%
Revolving Credit Facility With Australian Dollar Denominated Borrowings | Revolving Credit Agreement
Line of Credit Facility [Line Items]
Debt					$ 13,599,000		$ 16,008,000				$ 21,978			$ 23,500
Revolving Credit Facility With British Pound Denominated Borrowings | Revolving Credit Agreement
Line of Credit Facility [Line Items]
Debt					48,111,000							£ 38,440			£ 0
Revolving Credit Facility With Euros Denominated Borrowings | Revolving Credit Agreement
Line of Credit Facility [Line Items]
Debt					$ 23,296,000								€ 22,500			€ 0