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v3.23.1

Borrowings - Funding Facilities (Details) - USD ($) | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2023 | May 09, 2023 | Dec. 31, 2022
Line of Credit Facility [Line Items] |  |  |
Total funding facilities | $ 5,236,034,000 |  | $ 3,548,699,000
Funding Facilities |  |  |
Line of Credit Facility [Line Items] |  |  |
Line Amount | 16,250,000,000 |  |
Committed Line Amount | 1,800,000,000 |  |
Total funding facilities | 5,217,734,000 |  | 3,548,699,000
Funding Facilities | MRA funding |  |  |
Line of Credit Facility [Line Items] |  |  |
Line Amount | 9,250,000,000 |  |
Committed Line Amount | 1,800,000,000 |  |
Outstanding balance | 3,023,402,000 |  | 2,759,717,000
Funding Facilities | Master Repurchase Agreement Due Oct 20 2023 |  |  |
Line of Credit Facility [Line Items] |  |  |
Line Amount | 250,000,000 |  |
Committed Line Amount | 50,000,000 |  |
Outstanding balance | 0 |  | 49,381,000
Funding Facilities | Master Repurchase Agreement Due Nov 30 2023 |  |  |
Line of Credit Facility [Line Items] |  |  |
Line Amount | 1,000,000,000 |  |
Committed Line Amount | 100,000,000 |  |
Outstanding balance | 550,258,000 |  | 138,057,000
Funding Facilities | Master Repurchase Agreement Due Aug 9 2024 |  |  |
Line of Credit Facility [Line Items] |  |  |
Line Amount | 2,000,000,000 |  |
Committed Line Amount | 250,000,000 |  |
Outstanding balance | 255,281,000 |  | 702,128,000
Funding Facilities | Master Repurchase Agreement Due Jan 26 2024 |  |  |
Line of Credit Facility [Line Items] |  |  |
Line Amount | 1,500,000,000 |  |
Committed Line Amount | 550,000,000 |  |
Outstanding balance | $ 754,210,000 |  | 917,621,000
Facility term | 12 months |  |
Extension term | 3 months |  |
Timing option for extending facility | 3 months |  |
Funding Facilities | Master Repurchase Agreement Due May 4 2024 |  |  |
Line of Credit Facility [Line Items] |  |  |
Line Amount | $ 1,000,000,000 |  |
Committed Line Amount | 250,000,000 |  |
Outstanding balance | 649,929,000 |  | 493,029,000
Funding Facilities | Master Repurchase Agreement Due Sep 9 2024 |  |  |
Line of Credit Facility [Line Items] |  |  |
Line Amount | 1,500,000,000 |  |
Committed Line Amount | 250,000,000 |  |
Outstanding balance | 87,888,000 |  | 101,152,000
Funding Facilities | Master Repurchase Agreement Due Sep 9 2024 | Subsequent Event |  |  |
Line of Credit Facility [Line Items] |  |  |
Line Amount |  | $ 1,500,000 |
Committed Line Amount |  | $ 1,500,000 |
Funding Facilities | Master Repurchase Agreement Due Sep 22 2023 |  |  |
Line of Credit Facility [Line Items] |  |  |
Line Amount | 1,250,000,000 |  |
Committed Line Amount | 250,000,000 |  |
Outstanding balance | 181,107,000 |  | 186,707,000
Funding Facilities | Master Repurchase Agreement Due Sep 27 2024 |  |  |
Line of Credit Facility [Line Items] |  |  |
Line Amount | 750,000,000 |  |
Committed Line Amount | 100,000,000 |  |
Outstanding balance | 544,729,000 |  | 171,642,000
Funding Facilities | Early Funding |  |  |
Line of Credit Facility [Line Items] |  |  |
Line Amount | 7,000,000,000 |  |
Committed Line Amount | 0 |  |
Early funding facilities | 2,194,332,000 |  | 788,982,000
Funding Facilities | Early Funding Facility, one |  |  |
Line of Credit Facility [Line Items] |  |  |
Line Amount | 5,000,000,000 |  |
Committed Line Amount | 0 |  |
Early funding facilities | 1,262,204,000 |  | 561,874,000
Funding Facilities | Early Funding Facility, two |  |  |
Line of Credit Facility [Line Items] |  |  |
Line Amount | 2,000,000,000 |  |
Committed Line Amount | 0 |  |
Early funding facilities | $ 932,128,000 |  | $ 227,108,000
Timing for review of agreement | 90 days |  |

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