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Fair Value Measurements (Carrying and Fair Value) (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024 | Jul. 16, 2024 | Oct. 07, 2020 | Nov. 15, 2019
--- | --- | --- | --- | --- | ---
4.625% Senior Notes | Carrying Value |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Fair value of debt instruments | $ 460,038 | $ 457,211 |  |  |
4.625% Senior Notes | Fair Value |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Fair value of debt instruments | 431,286 | 420,935 |  |  |
4.625% Senior Notes | Senior Notes |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Stated interest rate |  |  |  | 4.625% |
1.75% Convertible Notes | Carrying Value |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Fair value of debt instruments | 149,109 | 148,186 |  |  |
1.75% Convertible Notes | Fair Value |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Fair value of debt instruments | 144,449 | 139,976 |  |  |
1.75% Convertible Notes | Convertible Debt |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Stated interest rate |  |  |  |  | 1.75%
3.625% Convertible Notes | Carrying Value |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Fair value of debt instruments | 263,147 | 258,885 |  |  |
3.625% Convertible Notes | Fair Value |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Fair value of debt instruments | $ 253,937 | $ 259,200 |  |  |
3.625% Convertible Notes | Convertible Debt |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Stated interest rate |  |  | 3.625% |  |

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