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Summary of Significant Accounting Policies - Narrative (Details) $ in Millions |  |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Mar. 09, 2023 | Feb. 22, 2023 | Jan. 15, 2022 USD ($) | Dec. 31, 2023 segment shares | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2021 | Apr. 27, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Reverse stock split (in shares) | 0.25 | 0.25 |  |  |  |  |  |  |
Residential mortgage loans, past due period |  |  |  | 30 days |  |  |  |  |
Residential mortgage loans, delinquency period |  |  |  | 90 days |  |  |  |  |
Reportable segment | segment |  |  |  | 1 |  |  |  |  |
Performance Shares | 2017 Plan |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Award vesting period |  |  |  | 3 years | 3 years | 3 years | 3 years |  |
RSUs | 2017 Plan |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Award vesting period |  |  |  | 3 years |  |  |  |  |
Number of shares per vested RSU (in shares) | shares |  |  |  | 1 |  |  |  |  |
Senior Notes Due 2026 |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  |  |  |  |  | 5.75%
6.25% senior convertible notes due 2022 | Convertible Notes |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  |  |  |  | 6.25% |
Extinguishment of debt, amount | $ |  |  | $ 138.0 |  |  |  |  |  |
Minimum |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Finite-lived intangible asset, useful life |  |  |  | 5 months |  |  |  |  |
Maximum |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Finite-lived intangible asset, useful life |  |  |  | 10 years |  |  |  |  |
Building |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Property, plant and equipment useful life |  |  |  | 30 years |  |  |  |  |
Building Improvements | Minimum |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Property, plant and equipment useful life |  |  |  | 10 years |  |  |  |  |
Building Improvements | Maximum |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Property, plant and equipment useful life |  |  |  | 30 years |  |  |  |  |
Furniture and Fixtures | Minimum |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Property, plant and equipment useful life |  |  |  | 5 years |  |  |  |  |
Furniture and Fixtures | Maximum |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |
Property, plant and equipment useful life |  |  |  | 7 years 6 months |  |  |  |  |

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