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v3.23.2

Long-Term Debt - Narrative (Details) $ / shares in Units, $ in Thousands |  |  |  |  |  |  | 3 Months Ended | 6 Months Ended |  |  |  |  |
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Aug. 01, 2023 USD ($) | May 31, 2023 USD ($) $ / shares Rate shares | Apr. 04, 2023 USD ($) | Mar. 29, 2023 USD ($) | Apr. 05, 2022 USD ($) | Feb. 16, 2018 USD ($) $ / shares Rate | Jun. 30, 2023 USD ($) $ / shares | Jun. 30, 2022 USD ($) | Jun. 30, 2023 USD ($) day $ / shares | Jun. 30, 2022 USD ($) | Apr. 03, 2023 $ / shares | Mar. 31, 2023 USD ($) | Feb. 01, 2023 USD ($) | Dec. 31, 2022 USD ($) $ / shares | Nov. 04, 2022 USD ($)
Schedule of Capitalization, Long-term Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest expense, debt |  |  |  |  |  |  | $ 2,295 | $ 3,506 | $ 5,554 | $ 5,523 |  |  |  |  |
Coupon interest expense |  |  |  |  |  |  | 1,708 | 1,589 | 3,094 | 3,206 |  |  |  |  |
Amortization of debt discount and debt issuance costs |  |  |  |  |  |  | 587 | 1,917 | 2,460 | 2,229 |  |  |  |  |
Payments of debt issuance costs |  |  |  |  |  |  |  |  | 4,357 | 4,803 |  |  |  |  |
Change in fair value of October 2023 Notes conversion feature |  |  |  |  | $ 5,508 |  |  | 5,508 |  |  |  |  |  |  |
Increase in fair value of unseparated embedded conversion feature |  |  |  |  | 5,508 |  |  |  |  |  |  |  |  |  |
ADSs, conversion ratio | Rate |  | 11618.46% |  |  |  | 9269.56% |  |  |  |  |  |  |  |  |
Aggregate amount of conversion |  | $ 1,470 |  |  |  |  |  |  |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  | $ 13,129 |  |  |  | $ 13,129 | $ 0 | $ 13,129 | $ 0 |  |  |  |  |
Ordinary shares, nominal value (in dollars per share) | $ / shares |  | $ 0.01 |  |  |  |  | $ 0.01 |  | $ 0.01 |  | $ 0.01 |  |  | $ 0.01 |
Number of ADSs delivered upon conversion (in shares) | shares |  | 12,347 |  |  |  |  |  |  |  |  |  |  |  |  |
Quarterly net revenue target for royalty financing |  |  |  | $ 25,000 |  |  |  |  |  |  |  |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Capitalization, Long-term Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Royalty financing | $ 30,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Capitalization, Long-term Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Royalty financing |  |  |  | $ 75,000 |  |  |  |  |  |  |  |  |  |  |
4.50% Exchangeable Senior Notes Due 2023 | Convertible Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Capitalization, Long-term Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  | 26,375 | $ 125,000 |  |  |  |  |  |  |  |  |
Option to purchase aggregate principal amount, term |  |  |  |  |  | 30 days |  |  |  |  |  |  |  |  |
Option to increase aggregate principal amount |  |  |  |  |  | $ 18,750 |  |  |  |  |  |  |  |  |
Proceeds from loans or conditional grants |  |  |  |  |  | $ 137,560 |  |  |  |  |  |  |  |  |
Debt instrument, exchange amount |  |  |  |  | 117,375 |  |  |  |  |  |  |  |  |  |
Debt instrument, repurchased face amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 8,875
4.50% Exchangeable Senior Notes Due 2023 | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Capitalization, Long-term Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  |  |  | 4.50% |  | 4.50% |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  | $ 0 |  | $ 0 |  |  |  | $ 17,500 | $ 17,500 |
4.50% Exchangeable Senior Notes Due October 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Capitalization, Long-term Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  |  |  |  |  |  |  |  | 4.50% |  |  |
4.50% Exchangeable Senior Notes Due October 2023 | Convertible Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Capitalization, Long-term Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
ADS, option price per share (in dollars per share) | $ / shares |  |  |  |  |  | $ 10.79 |  |  |  |  |  |  |  |  |
ADS premium percentage |  |  |  |  |  | 20.00% |  |  |  |  |  |  |  |  |
ADS shares purchase (in dollars per share) | $ / shares |  |  |  |  |  | $ 8.99 |  |  |  |  |  |  |  |  |
Threshold percentage of stock price trigger |  |  |  |  |  |  |  |  | 130.00% |  |  |  |  |  |
Threshold trading days | day |  |  |  |  |  |  |  |  | 20 |  |  |  |  |  |
Consecutive trading days | day |  |  |  |  |  |  |  |  | 30 |  |  |  |  |  |
4.50% Exchangeable Senior Notes Due October 2023 | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Capitalization, Long-term Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  |  |  | 4.50% |  | 4.50% |  |  |  |  |  |
Long-term debt |  |  | 21,187 |  |  |  | $ 21,187 |  | $ 21,187 |  |  | $ 117,375 |  | $ 117,375 |
Payments of debt issuance costs |  |  |  |  | 4,804 |  |  |  |  |  |  |  |  |  |
Debt exchanged |  |  | $ 96,188 |  |  |  |  |  |  |  |  |  |  |  |
4.50% Exchangeable Senior Notes Due October 2023 | Senior Notes | Third Party |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Capitalization, Long-term Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments of debt issuance costs |  |  |  |  | $ 5,450 |  |  |  |  |  |  |  |  |  |
April 2027 Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Capitalization, Long-term Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate |  |  | 6.00% |  |  |  |  |  |  |  |  |  |  |  |
April 2027 Notes | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Capitalization, Long-term Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  | $ 106,268 |  |  |  |  |  |  |  |  |  |  |  |
Debt exchanged |  | $ 106,268 |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate amount of conversion |  |  | $ 106,268 |  |  |  |  |  |  |  |  |  |  |  |

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