Consolidated Schedule of Investments - Derivative and Foreign Currency Forward Contracts (Parenthetical) € in Thousands, £ in Thousands, kr in Thousands, kr in Thousands, kr in Thousands, SFr in Thousands, $ in Thousands, $ in Thousands, $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2025 USD ($)	Sep. 30, 2025 USD ($)	Dec. 31, 2024 USD ($)	Sep. 30, 2025 GBP (£)	Sep. 30, 2025 NZD ($)	Sep. 30, 2025 NOK (kr)	Sep. 30, 2025 CAD ($)	Sep. 30, 2025 DKK (kr)	Sep. 30, 2025 EUR (€)	Sep. 30, 2025 SEK (kr)	Sep. 30, 2025 CHF (SFr)	Sep. 30, 2025 AUD ($)	Dec. 31, 2024 GBP (£)	Dec. 31, 2024 NZD ($)	Dec. 31, 2024 NOK (kr)	Dec. 31, 2024 CAD ($)	Dec. 31, 2024 DKK (kr)	Dec. 31, 2024 EUR (€)	Dec. 31, 2024 SEK (kr)	Dec. 31, 2024 CHF (SFr)	Dec. 31, 2024 AUD ($)
Interest Rate Swaps
Derivative assets	$ 6,217,000	$ 6,217,000	$ 41,184,000
Derivative liabilities	(15,000)	(15,000)	(12,875,000)
Forward currency contracts	14,360,000	(30,037,000)
Open Forward Foreign Currency Contract, Identifier [Axis]: Foreign currency forward contract (AUD)
Foreign Currency Forward Contracts
Notional Amount to be Purchased	55,937,000	55,937,000
Notional Amount to be Sold												$ 83,781
Unrealized Appreciation (Depreciation)	481,000	481,000
Open Forward Foreign Currency Contract, Identifier [Axis]: Foreign currency forward contract (AUD) 1
Foreign Currency Forward Contracts
Notional Amount to be Purchased																					$ 78,475
Notional Amount to be Sold			49,966,000
Derivative assets			(1,441,000)
Open Forward Foreign Currency Contract, Identifier [Axis]: Foreign currency forward contract (AUD) 2
Foreign Currency Forward Contracts
Notional Amount to be Purchased			53,704,000
Notional Amount to be Sold																					78,475
Derivative assets			5,178,000
Open Forward Foreign Currency Contract, Identifier [Axis]: Foreign currency forward contract (AUD) 3
Foreign Currency Forward Contracts
Notional Amount to be Purchased			50,126,000
Notional Amount to be Sold																					$ 78,717
Derivative assets			1,443,000
Open Forward Foreign Currency Contract, Identifier [Axis]: Foreign currency forward contract (CAD)
Foreign Currency Forward Contracts
Notional Amount to be Purchased	2,713,000	2,713,000
Notional Amount to be Sold							$ 3,727
Unrealized Appreciation (Depreciation)	27,000	27,000
Open Forward Foreign Currency Contract, Identifier [Axis]: Foreign currency forward contract (CAD) 1
Foreign Currency Forward Contracts
Notional Amount to be Purchased																$ 6,791
Notional Amount to be Sold			4,816,000
Derivative assets			(100,000)
Open Forward Foreign Currency Contract, Identifier [Axis]: Foreign currency forward contract (CAD) 2
Foreign Currency Forward Contracts
Notional Amount to be Purchased			5,041,000
Notional Amount to be Sold																6,791
Derivative assets			326,000
Open Forward Foreign Currency Contract, Identifier [Axis]: Foreign currency forward contract (CAD) 3
Foreign Currency Forward Contracts
Notional Amount to be Purchased			4,583,000
Notional Amount to be Sold																$ 6,460
Derivative assets			82,000
Open Forward Foreign Currency Contract, Identifier [Axis]: Foreign currency forward contract (CHF)
Foreign Currency Forward Contracts
Notional Amount to be Purchased	9,154,000	9,154,000
Notional Amount to be Sold | SFr											SFr 7,187
Unrealized Appreciation (Depreciation)	38,000	38,000
Open Forward Foreign Currency Contract, Identifier [Axis]: Foreign currency forward contract (CHF) 1
Foreign Currency Forward Contracts
Notional Amount to be Purchased | SFr																				SFr 6,485
Notional Amount to be Sold			7,354,000
Derivative assets			(202,000)
Open Forward Foreign Currency Contract, Identifier [Axis]: Foreign currency forward contract (CHF) 2
Foreign Currency Forward Contracts
Notional Amount to be Purchased			7,736,000
Notional Amount to be Sold | SFr																				6,485
Derivative assets			584,000
Open Forward Foreign Currency Contract, Identifier [Axis]: Foreign currency forward contract (CHF) 3
Foreign Currency Forward Contracts
Notional Amount to be Purchased			7,521,000
Notional Amount to be Sold | SFr																				SFr 6,569
Derivative assets			204,000
Open Forward Foreign Currency Contract, Identifier [Axis]: Foreign currency forward contract (DKK)
Foreign Currency Forward Contracts
Notional Amount to be Purchased	1,419,000	1,419,000
Notional Amount to be Sold | kr								kr 8,943
Unrealized Appreciation (Depreciation)	4,000	4,000
Open Forward Foreign Currency Contract, Identifier [Axis]: Foreign currency forward contract (DKK) 1
Foreign Currency Forward Contracts
Notional Amount to be Purchased | kr																	kr 8,429
Notional Amount to be Sold			1,187,000
Derivative assets			(17,000)
Open Forward Foreign Currency Contract, Identifier [Axis]: Foreign currency forward contract (DKK) 2
Foreign Currency Forward Contracts
Notional Amount to be Purchased			1,266,000
Notional Amount to be Sold | kr																	8,429
Derivative assets			95,000
Open Forward Foreign Currency Contract, Identifier [Axis]: Foreign currency forward contract (DKK) 3
Foreign Currency Forward Contracts
Notional Amount to be Purchased			1,215,000
Notional Amount to be Sold | kr																	kr 8,580
Derivative assets			18,000
Open Forward Foreign Currency Contract, Identifier [Axis]: Foreign currency forward contract (EUR)
Foreign Currency Forward Contracts
Notional Amount to be Purchased	280,684,000	280,684,000
Notional Amount to be Sold | €									€ 237,239
Unrealized Appreciation (Depreciation)	849,000	849,000
Open Forward Foreign Currency Contract, Identifier [Axis]: Foreign currency forward contract (EUR) 1
Foreign Currency Forward Contracts
Notional Amount to be Purchased | €																		€ 235,300
Notional Amount to be Sold			247,195,000
Derivative assets			(3,598,000)
Open Forward Foreign Currency Contract, Identifier [Axis]: Foreign currency forward contract (EUR) 2
Foreign Currency Forward Contracts
Notional Amount to be Purchased			263,028,000
Notional Amount to be Sold | €																		235,300
Derivative assets			19,431,000
Open Forward Foreign Currency Contract, Identifier [Axis]: Foreign currency forward contract (EUR) 3
Foreign Currency Forward Contracts
Notional Amount to be Purchased			237,739,000
Notional Amount to be Sold | €																		€ 225,421
Derivative assets			3,408,000
Open Forward Foreign Currency Contract, Identifier [Axis]: Foreign currency forward contract (GBP)
Foreign Currency Forward Contracts
Notional Amount to be Purchased	145,450,000	145,450,000
Notional Amount to be Sold | £				£ 106,937
Unrealized Appreciation (Depreciation)	1,688,000	1,688,000
Open Forward Foreign Currency Contract, Identifier [Axis]: Foreign currency forward contract (GBP) 1
Foreign Currency Forward Contracts
Notional Amount to be Purchased | £													£ 90,210
Notional Amount to be Sold			115,059,000
Derivative assets			(2,121,000)
Open Forward Foreign Currency Contract, Identifier [Axis]: Foreign currency forward contract (GBP) 2
Foreign Currency Forward Contracts
Notional Amount to be Purchased			119,845,000
Notional Amount to be Sold | £													90,210
Derivative assets			6,907,000
Open Forward Foreign Currency Contract, Identifier [Axis]: Foreign currency forward contract (GBP) 3
Foreign Currency Forward Contracts
Notional Amount to be Purchased			111,674,000
Notional Amount to be Sold | £													£ 87,646
Derivative assets			2,019,000
Open Forward Foreign Currency Contract, Identifier [Axis]: Foreign currency forward contract (NOK)
Foreign Currency Forward Contracts
Notional Amount to be Purchased	4,944,000	4,944,000
Notional Amount to be Sold | kr						kr 48,635
Unrealized Appreciation (Depreciation)	71,000	71,000
Open Forward Foreign Currency Contract, Identifier [Axis]: Foreign currency forward contract (NOK) 1
Foreign Currency Forward Contracts
Notional Amount to be Purchased | kr															kr 45,734
Notional Amount to be Sold			4,098,000
Derivative assets			(76,000)
Open Forward Foreign Currency Contract, Identifier [Axis]: Foreign currency forward contract (NOK) 2
Foreign Currency Forward Contracts
Notional Amount to be Purchased			4,365,000
Notional Amount to be Sold | kr															45,734
Derivative assets			343,000
Open Forward Foreign Currency Contract, Identifier [Axis]: Foreign currency forward contract (NOK) 3
Foreign Currency Forward Contracts
Notional Amount to be Purchased			4,129,000
Notional Amount to be Sold | kr															kr 46,087
Derivative assets			77,000
Open Forward Foreign Currency Contract, Identifier [Axis]: Foreign currency forward contract (NZD)
Foreign Currency Forward Contracts
Notional Amount to be Purchased	6,491,000	6,491,000
Notional Amount to be Sold					$ 10,840
Unrealized Appreciation (Depreciation)	184,000	184,000
Open Forward Foreign Currency Contract, Identifier [Axis]: Foreign currency forward contract (NZD) 1
Foreign Currency Forward Contracts
Notional Amount to be Purchased														$ 10,165
Notional Amount to be Sold			5,881,000
Derivative assets			(196,000)
Open Forward Foreign Currency Contract, Identifier [Axis]: Foreign currency forward contract (NZD) 2
Foreign Currency Forward Contracts
Notional Amount to be Purchased			6,362,000
Notional Amount to be Sold														10,165
Derivative assets			676,000
Open Forward Foreign Currency Contract, Identifier [Axis]: Foreign currency forward contract (NZD) 3
Foreign Currency Forward Contracts
Notional Amount to be Purchased			5,881,000
Notional Amount to be Sold														$ 10,155
Derivative assets			195,000
Open Forward Foreign Currency Contract, Identifier [Axis]: Foreign currency forward contract (SEK)
Foreign Currency Forward Contracts
Notional Amount to be Purchased	2,535,000	2,535,000
Notional Amount to be Sold | kr										kr 23,381
Unrealized Appreciation (Depreciation)	37,000	37,000
Open Forward Foreign Currency Contract, Identifier [Axis]: Foreign currency forward contract (SEK) 1
Foreign Currency Forward Contracts
Notional Amount to be Purchased | kr																			kr 21,630
Notional Amount to be Sold			1,971,000
Derivative assets			(17,000)
Open Forward Foreign Currency Contract, Identifier [Axis]: Foreign currency forward contract (SEK) 2
Foreign Currency Forward Contracts
Notional Amount to be Purchased			2,135,000
Notional Amount to be Sold | kr																			21,630
Derivative assets			181,000
Open Forward Foreign Currency Contract, Identifier [Axis]: Foreign currency forward contract (SEK) 3
Foreign Currency Forward Contracts
Notional Amount to be Purchased			2,007,000
Notional Amount to be Sold | kr																			kr 21,910
Derivative assets			17,000
Interest Rate Swap
Interest Rate Swaps
Forward currency contracts		2,823,000	(5,107,000)
Foreign Exchange Contract
Foreign Currency Forward Contracts
Total	$ 3,379,000	$ 3,379,000	$ 33,416,000
May 10, 2022 – Series D Notes | Interest Rate Swap
Interest Rate Swaps
Derivative, fixed interest rates	6.00%	6.00%	6.00%	6.00%	6.00%	6.00%	6.00%	6.00%	6.00%	6.00%	6.00%	6.00%	6.00%	6.00%	6.00%	6.00%	6.00%	6.00%	6.00%	6.00%	6.00%
Basis spread on variable rate	3.245%	3.245%	3.245%	3.245%	3.245%	3.245%	3.245%	3.245%	3.245%	3.245%	3.245%	3.245%	3.245%	3.245%	3.245%	3.245%	3.245%	3.245%	3.245%	3.245%	3.245%
Derivative, notional amount	$ 100,000,000	$ 100,000,000	$ 100,000,000
Derivative assets	$ 208,000	208,000
Derivative liabilities			(3,178,000)
Forward currency contracts		$ 208,000	$ (3,178,000)
July 26, 2022 – Series E Notes | Interest Rate Swap
Interest Rate Swaps
Derivative, fixed interest rates	6.00%	6.00%	6.00%	6.00%	6.00%	6.00%	6.00%	6.00%	6.00%	6.00%	6.00%	6.00%	6.00%	6.00%	6.00%	6.00%	6.00%	6.00%	6.00%	6.00%	6.00%
Basis spread on variable rate	3.382%	3.382%	3.382%	3.382%	3.382%	3.382%	3.382%	3.382%	3.382%	3.382%	3.382%	3.382%	3.382%	3.382%	3.382%	3.382%	3.382%	3.382%	3.382%	3.382%	3.382%
Derivative, notional amount	$ 55,000,000	$ 55,000,000	$ 55,000,000
Derivative liabilities	$ (14,700)	(14,700)	(1,929,000)
Forward currency contracts		$ (15,000)	$ (1,929,000)
June 11, 2025 - June 2030 Notes | Interest Rate Swap
Interest Rate Swaps
Derivative, fixed interest rates	6.15%	6.15%		6.15%	6.15%	6.15%	6.15%	6.15%	6.15%	6.15%	6.15%	6.15%
Basis spread on variable rate	2.506%	2.506%		2.506%	2.506%	2.506%	2.506%	2.506%	2.506%	2.506%	2.506%	2.506%
Derivative, notional amount	$ 400,000,000	$ 400,000,000
Derivative assets	$ 2,630,000	2,630,000
Forward currency contracts		$ 2,630,000