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Debt (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2024
Debt |
Schedule of debt | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | September 30, | ​ | December 31,
​ | ​ | 2024 | ​ | 2023
​ | ​ | (in thousands)
Convertible Debt | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
2029 Convertible Notes | ​ | $ | 345,000 | ​ | $ | 345,000
​ | ​ | ​ | ​ | ​ | ​ | ​
Term Loan | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
Wells Fargo Term Loan due June 2028 | ​ | ​ | 250,000 | ​ | ​ | 250,000
​ | ​ | ​ | ​ | ​ | ​ | ​
Mortgage Loans | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
Mortgage payable with East West Bank paid off June 2024 | ​ | ​ | — | ​ | ​ | 8,016
​ | ​ | ​ | ​ | ​ | ​ | ​
Other Loans and Payment Obligations | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
French government loans due December 2026 | ​ | ​ | 168 | ​ | ​ | 158
​ | ​ | ​ | ​ | ​ | ​ | ​
Line of Credit Facilities |  | ​ | ​ |  | ​ |
​ | ​ | ​ | ​ | ​ | ​ | ​
Line of credit facility with China Merchant Bank due October 2026 | ​ | ​ | — | ​ | ​ | —
Wells Fargo Revolving line of credit facility due June 2028 | ​ | ​ | — | ​ | ​ | —
Line of credit facility with ICBC Bank due November 2033 | ​ | ​ | 13,565 | ​ | ​ | —
​ | ​ | ​ | ​ | ​ | ​ | ​
Equipment under Finance Leases | ​ |  | 485 | ​ |  | 616
Total debt | ​ |  | 609,218 | ​ |  | 603,790
Less current portion of long-term debt | ​ |  | 252 | ​ |  | 436
Less: Loan issuance costs | ​ | ​ | 12,520 | ​ | ​ | 13,775
Long-term debt, net of current portion and unamortized debt issuance costs | ​ | $ | 596,446 | ​ | $ | 589,579

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- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. + References No definition available. + Details
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