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Fair Value - Financial Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | --- | --- | ---
Financial assets: |  |  |  |
Loans and investments, net | $ 14,254,674 | $ 11,981,048 | $ 5,285,868 | $ 4,189,960
Loans held-for-sale, net | 368,066 | 1,077,239 |  |
Securities held-to-maturity, net | 156,547 | 140,484 |  |
Financial liabilities: |  |  |  |
Credit and repurchase facilities | 3,841,814 | 4,481,579 |  |
Securitized debt | 7,849,270 | 5,892,810 |  |
Senior unsecured notes | 1,385,994 | 1,280,545 |  |
Convertible senior unsecured notes, net | 280,356 | 259,385 |  |
Junior subordinated notes | 143,128 | 142,382 |  |
Level 1 |  |  |  |
Financial liabilities: |  |  |  |
Senior unsecured notes | 1,262,560 |  |  |
Level 2 |  |  |  |
Financial assets: |  |  |  |
Loans held-for-sale, net | 356,496 |  |  |
Financial liabilities: |  |  |  |
Credit and repurchase facilities | 305,443 |  |  |
Convertible senior unsecured notes, net | 287,834 |  |  |
Level 3 |  |  |  |
Financial assets: |  |  |  |
Loans and investments, net | 14,468,418 |  |  |
Loans held-for-sale, net | 5,558 |  |  |
Capitalized mortgage servicing rights, net | 530,913 |  |  |
Securities held-to-maturity, net | 144,571 |  |  |
Financial liabilities: |  |  |  |
Credit and repurchase facilities | 3,522,749 |  |  |
Securitized debt | 7,560,541 |  |  |
Junior subordinated notes | 103,977 |  |  |
Carrying Value |  |  |  |
Financial assets: |  |  |  |
Loans and investments, net | 14,254,674 | 11,981,048 |  |
Loans held-for-sale, net | 354,070 | 1,093,609 |  |
Capitalized mortgage servicing rights, net | 401,471 |  |  |
Securities held-to-maturity, net | 156,547 | 140,484 |  |
Financial liabilities: |  |  |  |
Credit and repurchase facilities | 3,841,814 | 4,481,579 |  |
Securitized debt | 7,849,270 | 5,892,810 |  |
Senior unsecured notes | 1,385,994 | 1,280,545 |  |
Convertible senior unsecured notes, net | 280,356 | 259,385 |  |
Junior subordinated notes | 143,128 | 142,382 |  |
Fair Value |  |  |  |
Financial assets: |  |  |  |
Loans and investments, net | 14,468,418 | 12,181,194 |  |
Loans held-for-sale, net | 362,054 | 1,117,085 |  |
Capitalized mortgage servicing rights, net | 530,913 |  |  |
Securities held-to-maturity, net | 144,571 | 149,911 |  |
Financial liabilities: |  |  |  |
Credit and repurchase facilities | 3,828,192 | 4,484,107 |  |
Securitized debt | 7,560,541 | 5,914,453 |  |
Senior unsecured notes | 1,262,560 | 1,301,708 |  |
Convertible senior unsecured notes, net | 287,834 | 294,690 |  |
Junior subordinated notes | $ 103,977 | $ 101,698 |  |

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