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Consolidated Statements of Cash Flows (Parenthetical) | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Mar. 19, 2021 | Jan. 30, 2018
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1.5% Convertible Unsecured Senior Notes |  |  |  |  |
Stated interest rate (as a percent) | 1.50% | 1.50% | 1.50% |  | 1.50%
4.75% Convertible Senior Notes |  |  |  |  |
Stated interest rate (as a percent) | 4.75% | 4.75% | 4.75% | 4.75% |

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