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Convertible Senior Notes - Capped Call and Common Stock Forward (Details) - USD ($) $ / shares in Units, $ in Thousands |  |  | 1 Months Ended | 2 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
Jan. 07, 2021 | May 18, 2020 | Mar. 31, 2018 | Feb. 28, 2021 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | May 31, 2020 | May 29, 2020
Capped Call and Common Stock Forward |  |  |  |  |  |  |  |  |  |
Conversion of convertible senior notes to common stock |  |  |  |  |  |  | $ 15,345 |  |  |
Common stock shares issued |  |  |  | 32,200,000 |  |  |  |  |  |
Common Stock Forward |  |  |  |  |  |  |  |  |  |
Capped Call and Common Stock Forward |  |  |  |  |  |  |  |  |  |
Conversion of notes through common stock issuance (in shares) |  |  | 14,397,906 |  | 0 | 0 |  |  |  |
3.75% Convertible Senior Notes |  |  |  |  |  |  |  |  |  |
Capped Call and Common Stock Forward |  |  |  |  |  |  |  |  |  |
Principal amount |  | $ 200,000 |  |  | $ 197,278 | $ 197,278 |  |  | $ 212,463 | $ 12,500
Interest rate (as a percent) |  | 3.75% | 3.75% |  |  |  | 3.75% | 3.75% | 3.75% | 3.75%
Conversion of convertible senior notes to common stock |  |  |  |  | $ 0 | $ 0 |  |  |  |
Conversion of notes through common stock issuance (in shares) |  |  |  |  | 0 | 0 | 3,000,000.0 |  |  |
Convertible senior notes |  |  |  |  | $ 213,200 |  |  |  |  |
Percentage of principal amount to be redeemed |  | 100.00% |  |  |  |  |  |  |  |
3.75% Convertible Senior Notes | Capped Call |  |  |  |  |  |  |  |  |  |
Capped Call and Common Stock Forward |  |  |  |  |  |  |  |  |  |
Capped call options amount |  | $ 16,200 |  |  |  |  |  |  |  |
Cap price |  | $ 6.7560 |  |  |  |  |  |  |  |
Premium (as a percent) |  | 60.00% |  |  |  |  |  |  |  |
Closing stock price on grant date |  | $ 4.11 |  |  |  |  |  |  |  |
5.5% Convertible Senior Notes |  |  |  |  |  |  |  |  |  |
Capped Call and Common Stock Forward |  |  |  |  |  |  |  |  |  |
Principal amount |  |  | $ 100,000 |  |  |  |  |  |  |
Interest rate (as a percent) | 5.50% |  | 5.50% |  |  |  | 5.50% | 5.50% |  |
Aggregate repurchase of debt |  |  |  |  |  |  |  | $ 66,300 |  |
Conversion of convertible senior notes to common stock |  |  |  |  |  |  |  | $ 33,500 |  |
Conversion of notes through common stock issuance (in shares) | 69,808 |  |  |  |  |  |  | 14,600,000 |  |

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