Condensed Consolidated Schedule of Investments - Derivatives (Parenthetical) € in Thousands, £ in Thousands, kr in Thousands, kr in Thousands, kr in Thousands, $ in Thousands, $ in Thousands, $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)	Sep. 30, 2023 CAD ($)	Sep. 30, 2023 DKK (kr)	Sep. 30, 2023 EUR (€)	Sep. 30, 2023 GBP (£)	Sep. 30, 2023 NOK (kr)	Sep. 30, 2023 NZD ($)	Sep. 30, 2023 SEK (kr)	Dec. 31, 2022 CAD ($)	Dec. 31, 2022 DKK (kr)	Dec. 31, 2022 EUR (€)	Dec. 31, 2022 GBP (£)	Dec. 31, 2022 NOK (kr)	Dec. 31, 2022 SEK (kr)
Open Forward Foreign Currency Contract [Line Items]
Currency purchased	$ 6,307,654	$ 6,137,174
Currency sold	0	157,384
Notional Amount	48,875,505	49,935,296
Fair Value	48,413,196	$ 48,908,608
Change in Unrealized Gains / (Losses)	$ 1,030
Investment, Type [Extensible Enumeration]	Derivative [Member]	Derivative [Member]	Derivative [Member]	Derivative [Member]	Derivative [Member]	Derivative [Member]	Derivative [Member]	Derivative [Member]	Derivative [Member]	Derivative [Member]	Derivative [Member]	Derivative [Member]	Derivative [Member]	Derivative [Member]	Derivative [Member]
Open Forward Foreign Currency Contract, Identifier [Axis]: Deutsche Bank AG 1
Open Forward Foreign Currency Contract [Line Items]
Currency purchased	$ 14,774
Currency sold			$ 20,000
Change in Unrealized Gains / (Losses)	(16)
Open Forward Foreign Currency Contract, Identifier [Axis]: Deutsche Bank AG 2
Open Forward Foreign Currency Contract [Line Items]
Currency purchased	37,699
Currency sold | €					€ 35,000
Change in Unrealized Gains / (Losses)	535
Open Forward Foreign Currency Contract, Identifier [Axis]: Deutsche Bank AG 3
Open Forward Foreign Currency Contract [Line Items]
Currency purchased	37,437
Currency sold | £						£ 30,000
Change in Unrealized Gains / (Losses)	776
Open Forward Foreign Currency Contract, Identifier [Axis]: Goldman Sachs Bank USA 1
Open Forward Foreign Currency Contract [Line Items]
Currency purchased	78,907	$ 25,374
Currency sold				kr 546,731						$ 34,625
Change in Unrealized Gains / (Losses)	1,004	(213)
Open Forward Foreign Currency Contract, Identifier [Axis]: Goldman Sachs Bank USA 2
Open Forward Foreign Currency Contract [Line Items]
Currency purchased	54,685	78,088
Currency sold							kr 584,117				kr 546,731
Change in Unrealized Gains / (Losses)	(208)	(998)
Open Forward Foreign Currency Contract, Identifier [Axis]: Goldman Sachs Bank USA 3
Open Forward Foreign Currency Contract [Line Items]
Currency purchased	22,481	61,787
Currency sold								$ 38,100				€ 58,713
Change in Unrealized Gains / (Losses)	(415)	1,329
Open Forward Foreign Currency Contract, Identifier [Axis]: Goldman Sachs Bank USA 4
Open Forward Foreign Currency Contract [Line Items]
Currency purchased	21,394	58,713
Currency sold									kr 237,106					kr 584,117
Change in Unrealized Gains / (Losses)	(442)	(829)
Open Forward Foreign Currency Contract, Identifier [Axis]: Goldman Sachs Bank USA 5
Open Forward Foreign Currency Contract [Line Items]
Currency purchased	9,902	61,787
Currency sold									kr 109,749					kr 584,117
Change in Unrealized Gains / (Losses)	(204)	2,241
Open Forward Foreign Currency Contract, Identifier [Axis]: Goldman Sachs Bank USA 6
Open Forward Foreign Currency Contract [Line Items]
Currency purchased		10,698
Currency sold | kr															kr 109,749
Change in Unrealized Gains / (Losses)		121
Open Forward Foreign Currency Contract, Identifier [Axis]: Goldman Sachs Bank USA 7
Open Forward Foreign Currency Contract [Line Items]
Currency purchased		23,113
Currency sold | kr															kr 237,106
Change in Unrealized Gains / (Losses)		261
Interest rate swaps
Open Forward Foreign Currency Contract [Line Items]
Currency purchased	6,030,375	5,975,000
Fair Value	(269,324)	(248,163)
Upfront Payments / Receipts	0	8,753
Change in Unrealized Gains / (Losses)	$ (21,013)	$ (243,417)
Interest Rate Swap 1
Open Forward Foreign Currency Contract [Line Items]
Company receives	2.56%	2.56%	2.56%	2.56%	2.56%	2.56%	2.56%	2.56%	2.56%	2.56%	2.56%	2.56%	2.56%	2.56%	2.56%
Notional Amount	$ 435,000	$ 435,000
Fair Value	(11,715)	(18,778)
Upfront Payments / Receipts	0	1,796
Change in Unrealized Gains / (Losses)	$ 7,210	$ (18,778)
Interest Rate Swap 1 | SOFR
Open Forward Foreign Currency Contract [Line Items]
Company pays	0.93%	0.93%	0.93%	0.93%	0.93%	0.93%	0.93%	0.93%	0.93%	0.93%	0.93%	0.93%	0.93%	0.93%	0.93%
Interest Rate Swap 2
Open Forward Foreign Currency Contract [Line Items]
Company receives	1.75%	1.75%	1.75%	1.75%	1.75%	1.75%	1.75%	1.75%	1.75%	1.75%	1.75%	1.75%	1.75%	1.75%	1.75%
Notional Amount	$ 365,000	$ 365,000
Fair Value	(12,782)	(17,499)
Upfront Payments / Receipts	0	(545)
Change in Unrealized Gains / (Losses)	$ 4,717	$ (17,458)
Interest Rate Swap 2 | SOFR
Open Forward Foreign Currency Contract [Line Items]
Company pays	0.08%	0.08%	0.08%	0.08%	0.08%	0.08%	0.08%	0.08%	0.08%	0.08%	0.08%	0.08%	0.08%	0.08%	0.08%
Interest Rate Swap 3
Open Forward Foreign Currency Contract [Line Items]
Company receives	2.35%	2.35%	2.35%	2.35%	2.35%	2.35%	2.35%	2.35%	2.35%	2.35%	2.35%	2.35%	2.35%	2.35%	2.35%
Notional Amount	$ 500,000	$ 500,000
Fair Value	(20,146)	(25,362)
Upfront Payments / Receipts	0	1,822
Change in Unrealized Gains / (Losses)	$ 5,216	$ (25,224)
Interest Rate Swap 3 | SOFR
Open Forward Foreign Currency Contract [Line Items]
Company pays	0.66%	0.66%	0.66%	0.66%	0.66%	0.66%	0.66%	0.66%	0.66%	0.66%	0.66%	0.66%	0.66%	0.66%	0.66%
Interest Rate Swap 4
Open Forward Foreign Currency Contract [Line Items]
Company receives	2.70%	2.70%	2.70%	2.70%	2.70%	2.70%	2.70%	2.70%	2.70%	2.70%	2.70%	2.70%	2.70%	2.70%	2.70%
Notional Amount	$ 500,000	$ 500,000
Fair Value	(22,392)	(26,589)
Upfront Payments / Receipts	0	923
Change in Unrealized Gains / (Losses)	$ 4,197	$ (26,338)
Interest Rate Swap 4 | SOFR
Open Forward Foreign Currency Contract [Line Items]
Company pays	0.99%	0.99%	0.99%	0.99%	0.99%	0.99%	0.99%	0.99%	0.99%	0.99%	0.99%	0.99%	0.99%	0.99%	0.99%
Interest Rate Swap 5
Open Forward Foreign Currency Contract [Line Items]
Company receives	2.63%	2.63%	2.63%	2.63%	2.63%	2.63%	2.63%	2.63%	2.63%	2.63%	2.63%	2.63%	2.63%	2.63%	2.63%
Notional Amount	$ 625,000	$ 625,000
Fair Value	(41,592)	(34,657)
Upfront Payments / Receipts	0	2,387
Change in Unrealized Gains / (Losses)	$ (6,935)	$ (34,486)
Interest Rate Swap 5 | SOFR
Open Forward Foreign Currency Contract [Line Items]
Company pays	0.26%	0.26%	0.26%	0.26%	0.26%	0.26%	0.26%	0.26%	0.26%	0.26%	0.26%	0.26%	0.26%	0.26%	0.26%
Interest Rate Swap 6
Open Forward Foreign Currency Contract [Line Items]
Company receives	2.63%	2.63%	2.63%	2.63%	2.63%	2.63%	2.63%	2.63%	2.63%	2.63%	2.63%	2.63%	2.63%	2.63%	2.63%
Notional Amount	$ 625,000	$ 625,000
Fair Value	(41,342)	(34,352)
Upfront Payments / Receipts	0	2,370
Change in Unrealized Gains / (Losses)	$ (6,990)	$ (34,534)
Interest Rate Swap 6 | SOFR
Open Forward Foreign Currency Contract [Line Items]
Company pays	0.26%	0.26%	0.26%	0.26%	0.26%	0.26%	0.26%	0.26%	0.26%	0.26%	0.26%	0.26%	0.26%	0.26%	0.26%
Interest Rate Swap 7
Open Forward Foreign Currency Contract [Line Items]
Company receives	4.70%	4.70%	4.70%	4.70%	4.70%	4.70%	4.70%	4.70%	4.70%	4.70%	4.70%	4.70%	4.70%	4.70%	4.70%
Notional Amount	$ 400,000	$ 400,000
Fair Value	(16,891)	(17,978)
Upfront Payments / Receipts	0	0
Change in Unrealized Gains / (Losses)	$ 1,087	$ (17,832)
Interest Rate Swap 7 | SOFR
Open Forward Foreign Currency Contract [Line Items]
Company pays	2.43%	2.43%	2.43%	2.43%	2.43%	2.43%	2.43%	2.43%	2.43%	2.43%	2.43%	2.43%	2.43%	2.43%	2.43%
Interest Rate Swap 8
Open Forward Foreign Currency Contract [Line Items]
Company receives	4.70%	4.70%	4.70%	4.70%	4.70%	4.70%	4.70%	4.70%	4.70%	4.70%	4.70%	4.70%	4.70%	4.70%	4.70%
Notional Amount	$ 500,000	$ 500,000
Fair Value	(21,128)	(22,494)
Upfront Payments / Receipts	0	0
Change in Unrealized Gains / (Losses)	$ 1,366	$ (22,282)
Interest Rate Swap 8 | SOFR
Open Forward Foreign Currency Contract [Line Items]
Company pays	2.43%	2.43%	2.43%	2.43%	2.43%	2.43%	2.43%	2.43%	2.43%	2.43%	2.43%	2.43%	2.43%	2.43%	2.43%
Interest Rate Swap 9
Open Forward Foreign Currency Contract [Line Items]
Company receives	4.87%	4.87%	4.87%	4.87%	4.87%	4.87%	4.87%	4.87%	4.87%	4.87%	4.87%	4.87%	4.87%	4.87%	4.87%
Notional Amount | £						£ 250,000							£ 250,000
Fair Value	$ (20,953)	$ (19,940)
Upfront Payments / Receipts	0	0
Change in Unrealized Gains / (Losses)	$ (1,013)	$ (19,889)
Interest Rate Swap 9 | SOFR
Open Forward Foreign Currency Contract [Line Items]
Company pays		2.78%								2.78%	2.78%	2.78%	2.78%	2.78%	2.78%
Interest Rate Swap 9 | SONIA
Open Forward Foreign Currency Contract [Line Items]
Company pays	2.78%		2.78%	2.78%	2.78%	2.78%	2.78%	2.78%	2.78%
Interest Rate Swap 10
Open Forward Foreign Currency Contract [Line Items]
Company receives	5.61%	5.61%	5.61%	5.61%	5.61%	5.61%	5.61%	5.61%	5.61%	5.61%	5.61%	5.61%	5.61%	5.61%	5.61%
Notional Amount	$ 625,000	$ 625,000
Fair Value	(36,163)	(26,135)
Upfront Payments / Receipts	0	0
Change in Unrealized Gains / (Losses)	$ (10,027)	$ (22,217)
Interest Rate Swap 10 | SOFR
Open Forward Foreign Currency Contract [Line Items]
Company pays	2.79%	3.00%	2.79%	2.79%	2.79%	2.79%	2.79%	2.79%	2.79%	3.00%	3.00%	3.00%	3.00%	3.00%	3.00%
Interest Rate Swap 11
Open Forward Foreign Currency Contract [Line Items]
Company receives	7.05%	7.05%	7.05%	7.05%	7.05%	7.05%	7.05%	7.05%	7.05%	7.05%	7.05%	7.05%	7.05%	7.05%	7.05%
Notional Amount	$ 600,000	$ 600,000
Fair Value	(10,514)	(2,165)
Upfront Payments / Receipts	0	0
Change in Unrealized Gains / (Losses)	$ (8,349)	$ (2,165)
Interest Rate Swap 11 | SOFR
Open Forward Foreign Currency Contract [Line Items]
Company pays	2.93%	2.93%	2.93%	2.93%	2.93%	2.93%	2.93%	2.93%	2.93%	2.93%	2.93%	2.93%	2.93%	2.93%	2.93%
Interest Rate Swap 12
Open Forward Foreign Currency Contract [Line Items]
Company receives	7.49%	7.49%	7.49%	7.49%	7.49%	7.49%	7.49%	7.49%	7.49%	7.49%	7.49%	7.49%	7.49%	7.49%	7.49%
Notional Amount	$ 350,000	$ 350,000
Fair Value	(10,037)	(1,418)
Upfront Payments / Receipts	0	0
Change in Unrealized Gains / (Losses)	$ (8,619)	$ (1,418)
Interest Rate Swap 12 | SOFR
Open Forward Foreign Currency Contract [Line Items]
Company pays	3.72%	3.7165%	3.72%	3.72%	3.72%	3.72%	3.72%	3.72%	3.72%	3.7165%	3.7165%	3.7165%	3.7165%	3.7165%	3.7165%
Interest Rate Swap 13
Open Forward Foreign Currency Contract [Line Items]
Company receives	7.05%	7.05%	7.05%	7.05%	7.05%	7.05%	7.05%	7.05%	7.05%	7.05%	7.05%	7.05%	7.05%	7.05%	7.05%
Notional Amount	$ 200,000	$ 200,000
Fair Value	(3,669)	(796)
Upfront Payments / Receipts	0	0
Change in Unrealized Gains / (Losses)	$ (2,873)	$ (796)
Interest Rate Swap 13 | SOFR
Open Forward Foreign Currency Contract [Line Items]
Company pays	2.97%	2.97%	2.97%	2.97%	2.97%	2.97%	2.97%	2.97%	2.97%	2.97%	2.97%	2.97%	2.97%	2.97%	2.97%