Debt - Schedule of Components (Details) - USD ($)
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Jun. 30, 2026 |
Jun. 04, 2026 |
Dec. 31, 2025 |
Jun. 30, 2025 |
Oct. 15, 2024 |
| Line of Credit Facility [Line Items] |
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|
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| Maximum Principal Amount Committed |
$ 3,309,000,000
|
|
$ 3,084,000,000
|
|
|
| Principal Amount Outstanding |
2,284,000,000
|
|
2,024,500,000
|
|
|
| Principal Amount Available |
970,371,000
|
|
777,796,000
|
|
|
| Carrying Value |
2,280,212,000
|
|
2,031,988,000
|
|
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| Fair Value |
2,277,289,000
|
|
2,028,733,000
|
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| Asset Pledged as Collateral |
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| Line of Credit Facility [Line Items] |
|
|
|
|
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| Assets Pledged as Collateral |
4,685,649,000
|
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4,174,054,000
|
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| Senior Notes |
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| Line of Credit Facility [Line Items] |
|
|
|
|
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| Principal Amount Outstanding |
940,000,000
|
|
715,000,000
|
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| ASPV Credit Facility | Line of Credit |
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| Line of Credit Facility [Line Items] |
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|
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| Maximum Principal Amount Committed, Credit Facilities |
500,000,000
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|
500,000,000
|
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| Principal Amount Outstanding |
254,000,000
|
|
272,600,000
|
|
|
| Principal Amount Available |
229,348,000
|
|
59,321,000
|
|
|
| Carrying Value, Credit Facilities |
254,000,000
|
|
272,600,000
|
|
|
| Fair Value, Credit Facility |
254,000,000
|
|
272,600,000
|
|
|
| ASPV Credit Facility | Line of Credit | Asset Pledged as Collateral |
|
|
|
|
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| Line of Credit Facility [Line Items] |
|
|
|
|
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| Assets Pledged as Collateral |
731,610,000
|
|
494,373,000
|
|
|
| MSPV Credit Facility | Line of Credit |
|
|
|
|
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| Line of Credit Facility [Line Items] |
|
|
|
|
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| Maximum Principal Amount Committed, Credit Facilities |
500,000,000
|
|
500,000,000
|
|
|
| Principal Amount Outstanding |
390,000,000
|
|
386,400,000
|
|
|
| Principal Amount Available |
110,000,000
|
|
57,296,000
|
|
|
| Carrying Value, Credit Facilities |
390,000,000
|
|
386,400,000
|
|
|
| Fair Value, Credit Facility |
390,000,000
|
|
386,400,000
|
|
|
| MSPV Credit Facility | Line of Credit | Asset Pledged as Collateral |
|
|
|
|
|
| Line of Credit Facility [Line Items] |
|
|
|
|
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| Assets Pledged as Collateral |
881,286,000
|
|
684,938,000
|
|
|
| SMBC Truist Credit Facility | Line of Credit |
|
|
|
|
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| Line of Credit Facility [Line Items] |
|
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|
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| Maximum Principal Amount Committed, Credit Facilities |
975,000,000
|
|
975,000,000
|
|
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| Principal Amount Outstanding |
306,000,000
|
|
256,500,000
|
|
|
| Principal Amount Available |
631,023,000
|
|
661,179,000
|
|
|
| Carrying Value, Credit Facilities |
306,000,000
|
|
256,500,000
|
|
|
| Fair Value, Credit Facility |
306,000,000
|
|
256,500,000
|
|
|
| SMBC Truist Credit Facility | Line of Credit | Asset Pledged as Collateral |
|
|
|
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| Line of Credit Facility [Line Items] |
|
|
|
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| Assets Pledged as Collateral |
2,625,399,000
|
|
2,550,658,000
|
|
|
| Series A Tranche A Notes | Senior Notes |
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|
|
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| Line of Credit Facility [Line Items] |
|
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|
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| Maximum Principal Amount Committed, Other Borrowings |
90,000,000
|
|
90,000,000
|
|
|
| Principal Amount Outstanding |
90,000,000
|
|
90,000,000
|
|
|
| Carrying Value, Other Borrowings |
90,000,000
|
|
90,406,000
|
|
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| Fair Value, Other Borrowings |
90,266,000
|
|
90,965,000
|
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| Series A Tranche A Notes | Senior Notes | Asset Pledged as Collateral |
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| Line of Credit Facility [Line Items] |
|
|
|
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| Assets Pledged as Collateral |
0
|
|
0
|
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| Series A Tranche B Notes | Senior Notes |
|
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|
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| Line of Credit Facility [Line Items] |
|
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|
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| Maximum Principal Amount Committed, Other Borrowings |
150,000,000
|
|
150,000,000
|
|
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| Principal Amount Outstanding |
150,000,000
|
|
150,000,000
|
|
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| Carrying Value, Other Borrowings |
149,411,000
|
|
151,856,000
|
|
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| Fair Value, Other Borrowings |
150,590,000
|
|
153,212,000
|
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| Series A Tranche B Notes | Senior Notes | Asset Pledged as Collateral |
|
|
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| Line of Credit Facility [Line Items] |
|
|
|
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| Assets Pledged as Collateral |
0
|
|
0
|
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| Series B Tranche A Notes | Senior Notes |
|
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| Line of Credit Facility [Line Items] |
|
|
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| Maximum Principal Amount Committed, Other Borrowings |
85,000,000
|
|
85,000,000
|
|
$ 85,000,000
|
| Principal Amount Outstanding |
85,000,000
|
|
85,000,000
|
|
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| Carrying Value, Other Borrowings |
84,661,000
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|
86,045,000
|
|
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| Fair Value, Other Borrowings |
83,824,000
|
|
84,981,000
|
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| Series B Tranche A Notes | Senior Notes | Asset Pledged as Collateral |
|
|
|
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| Line of Credit Facility [Line Items] |
|
|
|
|
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| Assets Pledged as Collateral |
0
|
|
0
|
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| Series B Tranche B Notes | Senior Notes |
|
|
|
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| Line of Credit Facility [Line Items] |
|
|
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| Maximum Principal Amount Committed, Other Borrowings |
25,000,000
|
|
25,000,000
|
|
25,000,000
|
| Principal Amount Outstanding |
25,000,000
|
|
25,000,000
|
|
|
| Carrying Value, Other Borrowings |
25,000,000
|
|
25,000,000
|
|
|
| Fair Value, Other Borrowings |
24,999,000
|
|
24,999,000
|
|
|
| Series B Tranche B Notes | Senior Notes | Asset Pledged as Collateral |
|
|
|
|
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| Line of Credit Facility [Line Items] |
|
|
|
|
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| Assets Pledged as Collateral |
0
|
|
0
|
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| Series B Tranche C Notes | Senior Notes |
|
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|
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| Line of Credit Facility [Line Items] |
|
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| Maximum Principal Amount Committed, Other Borrowings |
290,000,000
|
|
290,000,000
|
|
$ 290,000,000
|
| Principal Amount Outstanding |
290,000,000
|
|
290,000,000
|
|
|
| Carrying Value, Other Borrowings |
288,496,000
|
|
293,911,000
|
|
|
| Fair Value, Other Borrowings |
284,354,000
|
|
289,100,000
|
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| Series B Tranche C Notes | Senior Notes | Asset Pledged as Collateral |
|
|
|
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| Line of Credit Facility [Line Items] |
|
|
|
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| Assets Pledged as Collateral |
0
|
|
0
|
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| Series C Tranche A Notes | Senior Notes |
|
|
|
|
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| Line of Credit Facility [Line Items] |
|
|
|
|
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| Maximum Principal Amount Committed, Other Borrowings |
25,000,000
|
|
25,000,000
|
$ 25,000,000
|
|
| Principal Amount Outstanding |
25,000,000
|
|
25,000,000
|
|
|
| Carrying Value, Other Borrowings |
23,834,000
|
|
25,178,000
|
|
|
| Fair Value, Other Borrowings |
24,854,000
|
|
25,190,000
|
|
|
| Series C Tranche A Notes | Senior Notes | Asset Pledged as Collateral |
|
|
|
|
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| Line of Credit Facility [Line Items] |
|
|
|
|
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| Assets Pledged as Collateral |
0
|
|
0
|
|
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| Series C Tranche B Notes | Senior Notes |
|
|
|
|
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| Line of Credit Facility [Line Items] |
|
|
|
|
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| Maximum Principal Amount Committed, Other Borrowings |
75,000,000
|
|
75,000,000
|
$ 75,000,000
|
|
| Principal Amount Outstanding |
75,000,000
|
|
75,000,000
|
|
|
| Carrying Value, Other Borrowings |
74,757,000
|
|
75,092,000
|
|
|
| Fair Value, Other Borrowings |
74,402,000
|
|
75,786,000
|
|
|
| Series C Tranche B Notes | Senior Notes | Asset Pledged as Collateral |
|
|
|
|
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| Line of Credit Facility [Line Items] |
|
|
|
|
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| Assets Pledged as Collateral |
0
|
|
0
|
|
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| Series D Tranche A Notes | Senior Notes |
|
|
|
|
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| Line of Credit Facility [Line Items] |
|
|
|
|
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| Maximum Principal Amount Committed, Other Borrowings |
50,000,000
|
$ 50,000,000
|
|
|
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| Principal Amount Outstanding |
50,000,000
|
|
|
|
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| Carrying Value, Other Borrowings |
49,944,000
|
|
|
|
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| Fair Value, Other Borrowings |
50,000,000
|
|
|
|
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| Series D Tranche A Notes | Senior Notes | Asset Pledged as Collateral |
|
|
|
|
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| Line of Credit Facility [Line Items] |
|
|
|
|
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| Assets Pledged as Collateral |
0
|
|
|
|
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| Series D Tranche B Notes | Senior Notes |
|
|
|
|
|
| Line of Credit Facility [Line Items] |
|
|
|
|
|
| Maximum Principal Amount Committed, Other Borrowings |
175,000,000
|
$ 175,000,000
|
|
|
|
| Principal Amount Outstanding |
175,000,000
|
|
|
|
|
| Carrying Value, Other Borrowings |
175,109,000
|
|
|
|
|
| Fair Value, Other Borrowings |
175,000,000
|
|
|
|
|
| Series D Tranche B Notes | Senior Notes | Asset Pledged as Collateral |
|
|
|
|
|
| Line of Credit Facility [Line Items] |
|
|
|
|
|
| Assets Pledged as Collateral |
0
|
|
|
|
|
| CLO Transaction | Secured Debt |
|
|
|
|
|
| Line of Credit Facility [Line Items] |
|
|
|
|
|
| Maximum Principal Amount Committed, Other Borrowings |
369,000,000
|
|
369,000,000
|
|
|
| Principal Amount Outstanding |
369,000,000
|
|
369,000,000
|
|
|
| Principal Amount Available |
0
|
|
0
|
|
|
| Carrying Value, Other Borrowings |
369,000,000
|
|
369,000,000
|
|
|
| Fair Value, Other Borrowings |
369,000,000
|
|
369,000,000
|
|
|
| CLO Transaction | Secured Debt | Asset Pledged as Collateral |
|
|
|
|
|
| Line of Credit Facility [Line Items] |
|
|
|
|
|
| Assets Pledged as Collateral |
$ 447,354,000
|
|
$ 444,085,000
|
|
|