Borrowings - Outstanding Debt Obligations (Details)
£ in Millions, $ in Millions, $ in Millions |
Sep. 30, 2026
USD ($)
|
Sep. 30, 2026
CAD ($)
|
Sep. 30, 2026
EUR (€)
|
Sep. 30, 2026
GBP (£)
|
Sep. 30, 2026
AUD ($)
|
May 21, 2026
USD ($)
|
Mar. 03, 2026
USD ($)
|
Dec. 31, 2025
USD ($)
|
Dec. 31, 2025
CAD ($)
|
Dec. 31, 2025
EUR (€)
|
Dec. 31, 2025
GBP (£)
|
Dec. 31, 2025
AUD ($)
|
Oct. 14, 2025
USD ($)
|
Mar. 04, 2025
USD ($)
|
Dec. 16, 2024
USD ($)
|
Oct. 15, 2024
USD ($)
|
May 20, 2024
USD ($)
|
Sep. 30, 2021
USD ($)
|
Jul. 23, 2021
USD ($)
|
Apr. 27, 2021
USD ($)
|
Mar. 16, 2021
USD ($)
|
Dec. 01, 2020
USD ($)
|
Oct. 23, 2020
USD ($)
|
| Debt Instrument [Line Items] |
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Aggregate Principal Committed |
$ 9,735,223,000
|
|
|
|
|
|
|
$ 10,507,500,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Outstanding Principal |
7,177,992,000
|
|
|
|
|
|
|
8,100,621,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Carrying Value (net of unamortized issuance costs, premiums and discounts) |
7,036,026,000
|
|
|
|
|
|
|
8,080,129,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Unamortized Debt Issuance Costs (including premiums and discounts) |
46,470,000
|
|
|
|
|
|
|
39,900,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Unused portion |
2,557,231,000
|
|
|
|
|
|
|
2,406,879,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Amount available |
2,455,597,000
|
|
|
|
|
|
|
2,288,977,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Breckenridge Funding Facility | Line of Credit | Revolving Credit Facility |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Debt Instrument [Line Items] |
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Aggregate Principal Committed |
1,175,000,000
|
|
|
|
|
|
|
1,175,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Outstanding Principal |
445,850,000
|
|
|
|
|
|
|
652,550,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Carrying Value (net of unamortized issuance costs, premiums and discounts) |
445,850,000
|
|
|
|
|
|
|
652,550,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Unused portion |
729,150,000
|
|
|
|
|
|
|
522,450,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Amount available |
729,150,000
|
|
|
|
|
|
|
418,348,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Big Sky Funding Facility | Line of Credit | Revolving Credit Facility |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
| Debt Instrument [Line Items] |
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Aggregate Principal Committed |
800,000,000
|
|
|
|
|
|
|
650,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Outstanding Principal |
482,400,000
|
|
|
|
|
|
|
585,900,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Carrying Value (net of unamortized issuance costs, premiums and discounts) |
482,400,000
|
|
|
|
|
|
|
585,900,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Unused portion |
317,600,000
|
|
|
|
|
|
|
64,100,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Amount available |
317,600,000
|
|
|
|
|
|
|
64,100,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| BXSL 2025-1 Facility | Line of Credit | Revolving Credit Facility |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Aggregate Principal Committed |
400,000,000
|
|
|
|
|
|
|
400,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Outstanding Principal |
40,700,000
|
|
|
|
|
|
|
34,800,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Carrying Value (net of unamortized issuance costs, premiums and discounts) |
40,700,000
|
|
|
|
|
|
|
34,800,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Unused portion |
359,300,000
|
|
|
|
|
|
|
365,200,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Amount available |
259,800,000
|
|
|
|
|
|
|
351,400,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Revolving Credit Facility | Line of Credit | Revolving Credit Facility |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Aggregate Principal Committed |
2,452,723,000
|
$ 35.0
|
€ 369,400,000
|
£ 293.8
|
$ 44.0
|
|
|
2,425,000,000
|
$ 30.7
|
€ 417,200,000
|
£ 293.5
|
$ 1.0
|
|
|
|
|
|
|
|
|
|
|
|
| Outstanding Principal |
1,301,542,000
|
|
|
|
|
|
|
1,447,497,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Carrying Value (net of unamortized issuance costs, premiums and discounts) |
1,301,542,000
|
|
|
|
|
|
|
1,447,497,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Unused portion |
1,151,181,000
|
|
|
|
|
|
|
977,503,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Amount available |
1,149,047,000
|
|
|
|
|
|
|
977,503,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 2.125% Senior Notes Due 2027 | Unsecured debt |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Aggregate Principal Committed |
650,000,000
|
|
|
|
|
|
|
650,000,000
|
|
|
|
|
|
|
|
|
|
|
$ 650,000,000.0
|
|
|
|
|
| Outstanding Principal |
650,000,000
|
|
|
|
|
|
|
650,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Carrying Value (net of unamortized issuance costs, premiums and discounts) |
648,968,000
|
|
|
|
|
|
|
646,911,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Unamortized Debt Issuance Costs (including premiums and discounts) |
1,032,000
|
|
|
|
|
|
|
3,089,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 2.850% Notes Due 2028 | Unsecured debt |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Aggregate Principal Committed |
650,000,000
|
|
|
|
|
|
|
650,000,000
|
|
|
|
|
|
|
|
|
|
$ 650,000,000.0
|
|
|
|
|
|
| Outstanding Principal |
650,000,000
|
|
|
|
|
|
|
650,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Carrying Value (net of unamortized issuance costs, premiums and discounts) |
646,242,000
|
|
|
|
|
|
|
644,837,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Unamortized Debt Issuance Costs (including premiums and discounts) |
3,758,000
|
|
|
|
|
|
|
5,163,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 5.875% Notes Due 2027 | Unsecured debt |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Aggregate Principal Committed |
400,000,000
|
|
|
|
|
|
|
400,000,000
|
|
|
|
|
|
|
|
|
$ 400,000,000.0
|
|
|
|
|
|
|
| Outstanding Principal |
400,000,000
|
|
|
|
|
|
|
400,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Carrying Value (net of unamortized issuance costs, premiums and discounts) |
396,998,000
|
|
|
|
|
|
|
403,760,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Unamortized Debt Issuance Costs (including premiums and discounts) |
2,284,000
|
|
|
|
|
|
|
3,803,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 5.350% Notes Due 2028 | Unsecured debt |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Aggregate Principal Committed |
700,000,000
|
|
|
|
|
|
|
700,000,000
|
|
|
|
|
|
|
$ 300,000,000.0
|
$ 400,000,000.0
|
|
|
|
|
|
|
|
| Outstanding Principal |
700,000,000
|
|
|
|
|
|
|
700,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Carrying Value (net of unamortized issuance costs, premiums and discounts) |
686,352,000
|
|
|
|
|
|
|
700,057,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Unamortized Debt Issuance Costs (including premiums and discounts) |
4,106,000
|
|
|
|
|
|
|
6,107,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 5.300% Notes Due 2030 | Unsecured debt |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Aggregate Principal Committed |
500,000,000
|
|
|
|
|
|
|
500,000,000
|
|
|
|
|
|
$ 500,000,000.0
|
|
|
|
|
|
|
|
|
|
| Outstanding Principal |
500,000,000
|
|
|
|
|
|
|
500,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Carrying Value (net of unamortized issuance costs, premiums and discounts) |
474,927,000
|
|
|
|
|
|
|
497,626,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Unamortized Debt Issuance Costs (including premiums and discounts) |
7,936,000
|
|
|
|
|
|
|
9,520,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 5.125% Notes Due 2031 | Unsecured debt |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Aggregate Principal Committed |
500,000,000
|
|
|
|
|
|
|
500,000,000
|
|
|
|
|
$ 500,000,000.0
|
|
|
|
|
|
|
|
|
|
|
| Outstanding Principal |
500,000,000
|
|
|
|
|
|
|
500,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Carrying Value (net of unamortized issuance costs, premiums and discounts) |
465,736,000
|
|
|
|
|
|
|
489,847,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Unamortized Debt Issuance Costs (including premiums and discounts) |
7,360,000
|
|
|
|
|
|
|
8,688,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 5.250% Notes Due 2029 | Unsecured debt |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Aggregate Principal Committed |
400,000,000
|
|
|
|
|
|
$ 400,000,000.0
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Outstanding Principal |
400,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Carrying Value (net of unamortized issuance costs, premiums and discounts) |
378,453,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Unamortized Debt Issuance Costs (including premiums and discounts) |
4,994,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 5.900% Notes Due 2031 | Unsecured debt |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Aggregate Principal Committed |
650,000,000
|
|
|
|
|
$ 650,000,000.0
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Outstanding Principal |
650,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Carrying Value (net of unamortized issuance costs, premiums and discounts) |
612,417,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Unamortized Debt Issuance Costs (including premiums and discounts) |
12,941,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 2024-1 CLO Debt |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Aggregate Principal Committed |
457,500,000
|
|
|
|
|
|
|
457,500,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Outstanding Principal |
746,770,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Outstanding Principal |
457,500,000
|
|
|
|
|
|
|
457,500,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Carrying Value (net of unamortized issuance costs, premiums and discounts) |
455,441,000
|
|
|
|
|
|
|
455,288,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Unamortized Debt Issuance Costs (including premiums and discounts) |
$ 2,059,000
|
|
|
|
|
|
|
2,212,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Jackson Hole Funding Facility | Line of Credit | Revolving Credit Facility |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Aggregate Principal Committed |
|
|
|
|
|
|
|
500,000,000
|
|
€ 0
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Outstanding Principal |
|
|
|
|
|
|
|
22,374,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Carrying Value (net of unamortized issuance costs, premiums and discounts) |
|
|
|
|
|
|
|
22,374,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Unused portion |
|
|
|
|
|
|
|
477,626,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Amount available |
|
|
|
|
|
|
|
477,626,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 3.625% Notes Due 2026 | Unsecured debt |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Aggregate Principal Committed |
|
|
|
|
|
|
|
800,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 300,000,000.0
|
$ 500,000,000.0
|
| Outstanding Principal |
|
|
|
|
|
|
|
800,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Carrying Value (net of unamortized issuance costs, premiums and discounts) |
|
|
|
|
|
|
|
799,936,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Unamortized Debt Issuance Costs (including premiums and discounts) |
|
|
|
|
|
|
|
64,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 2.750% Notes Due 2026 | Unsecured debt |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Aggregate Principal Committed |
|
|
|
|
|
|
|
700,000,000
|
|
|
|
|
|
|
|
|
|
|
|
$ 300,000,000.0
|
$ 400,000,000.0
|
|
|
| Outstanding Principal |
|
|
|
|
|
|
|
700,000,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Carrying Value (net of unamortized issuance costs, premiums and discounts) |
|
|
|
|
|
|
|
698,746,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Unamortized Debt Issuance Costs (including premiums and discounts) |
|
|
|
|
|
|
|
$ 1,254,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|