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v3.23.3

Debt - Schedule of Carrying Value of Debt (Details) - USD ($) | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Debt Instrument [Line Items] |  |
Total debt | $ 1,755,000,000 | $ 1,697,000,000
Convertible senior notes |  |
Debt Instrument [Line Items] |  |
Total convertible senior notes | 1,664,000,000 | 1,660,000,000
Convertible senior notes | 1.375% convertible senior notes due 2026 |  |
Debt Instrument [Line Items] |  |
Total convertible senior notes | $ 496,000,000 | 495,000,000
Stated Interest Rate | 1.375% |
Convertible senior notes | 2.75% convertible senior notes due 2025 |  |
Debt Instrument [Line Items] |  |
Total convertible senior notes | $ 561,000,000 | 560,000,000
Stated Interest Rate | 2.75% |
Convertible senior notes | 0.75% convertible senior notes due 2024 |  |
Debt Instrument [Line Items] |  |
Total convertible senior notes | $ 607,000,000 | 605,000,000
Stated Interest Rate | 0.75% |
Credit facilities |  |
Debt Instrument [Line Items] |  |
Warehouse line of credit | $ 91,000,000 | 37,000,000
Line of Credit | Credit facilities |  |
Debt Instrument [Line Items] |  |
Maximum Borrowing Capacity | 200,000,000 |
JPMorgan Chase Bank, N.A. | Credit facilities |  |
Debt Instrument [Line Items] |  |
Repurchase agreements | 68,000,000 | 0
JPMorgan Chase Bank, N.A. | Line of Credit | Credit facilities |  |
Debt Instrument [Line Items] |  |
Maximum Borrowing Capacity | 100,000,000 |
Repurchase agreement committed amount | 25,000,000 |
Atlas Securitized Products, L.P. | Credit facilities |  |
Debt Instrument [Line Items] |  |
Repurchase agreements | 22,000,000 | 23,000,000
Atlas Securitized Products, L.P. | Line of Credit | Credit facilities |  |
Debt Instrument [Line Items] |  |
Maximum Borrowing Capacity | 50,000,000 |
Citibank, N.A. | Credit facilities |  |
Debt Instrument [Line Items] |  |
Repurchase agreements | 0 | 3,000,000
Comerica Bank | Line of Credit | Credit facilities |  |
Debt Instrument [Line Items] |  |
Warehouse line of credit | 1,000,000 | $ 11,000,000
Maximum Borrowing Capacity | $ 50,000,000 |

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