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Leases (Tables) | 9 Months Ended
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Sep. 30, 2024
Leases |
Schedule of operating and finance lease right-of-use assets and related lease obligations | ​
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​ | ​ | ​ | September 30, | ​ | December 31, | ​ | ​ | ​
Leases | Classification | ​ | 2024 |  | 2023 |  |  | ​
Assets | ​ | ​ | (in thousands) | ​ |  | ​
Operating leases | Operating lease assets | ​ | $ | 30,391 | ​ | $ | 30,716 | ​ | ​ | ​
Finance lease | Finance lease assets* | ​ |  | 15,668 | ​ |  | 16,632 | ​ | ​ | ​
Total leased assets | ​ | ​ | $ | 46,059 | ​ | $ | 47,348 | ​ | ​ | ​
Liabilities | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Current | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Operating | Other current liabilities | ​ | $ | 5,217 | ​ | $ | 4,978 | ​ | ​ | ​
Finance | Current portion of finance lease obligation | ​ | ​ | 1,399 | ​ | ​ | 1,511 | ​ | ​ | ​
Non-current | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Operating | Other long-term liabilities | ​ | ​ | 25,290 | ​ | ​ | 25,724 | ​ | ​ | ​
Finance | Finance lease obligation | ​ |  | 42,671 | ​ |  | 43,674 | ​ | ​ | ​
Total lease liabilities | ​ | ​ | $ | 74,577 | ​ | $ | 75,887 | ​ | ​ | ​
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*Finance lease assets are recorded net of accumulated depreciation of $47.2 million and include $0.5 million of prepaid financing costs as of September 30, 2024. Finance lease assets are recorded net of accumulated depreciation of $46.4 million and include $0.6 million of prepaid financing costs as of December 31, 2023. | ​ | ​ | ​
Schedule of lease costs | ​
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​ | ​ | ​ | Three months ended | ​ | Nine months ended |  | ​
​ | ​ | ​ | September 30, | ​ | September 30, | ​ | ​
Lease cost | Classification | ​ | 2024 |  | 2023 |  | 2024 |  | 2023 |  | ​
Operating lease cost | ​ | ​ | (in thousands) |  | ​
Product / services* | Cost of revenue | ​ | $ | 1,664 | ​ | $ | 2,041 | ​ | $ | 5,186 | ​ | $ | 5,328 | ​ | ​
Research and development | Operating expenses | ​ |  | 127 | ​ |  | 183 | ​ |  | 453 | ​ |  | 426 | ​ | ​
Sales and marketing* | Operating expenses | ​ |  | 463 | ​ |  | 419 | ​ |  | 1,365 | ​ |  | 1,231 | ​ | ​
General and administrative* | Operating expenses | ​ |  | 232 | ​ |  | 298 | ​ |  | 763 | ​ |  | 813 | ​ | ​
Total operating lease cost | ​ | ​ | $ | 2,486 | ​ | $ | 2,941 | ​ | $ | 7,767 | ​ | $ | 7,798 | ​ | ​
Finance lease cost | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Depreciation of leased assets | Cost of revenue, Research and development, Sales and marketing and General and administrative | ​ | $ | 321 | ​ | $ | 324 | ​ | $ | 964 | ​ | $ | 961 | ​ | ​
Interest on lease liabilities | Interest expense | ​ |  | 1,177 | ​ |  | 1,214 | ​ |  | 3,561 | ​ |  | 3,668 | ​ | ​
Total finance lease cost | ​ | ​ | $ | 1,498 | ​ | $ | 1,538 | ​ | $ | 4,525 | ​ | $ | 4,629 | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total lease cost | ​ | ​ | $ | 3,984 | ​ | $ | 4,479 | ​ | $ | 12,292 | ​ | $ | 12,427 | ​ | ​
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* Product / services, sales and marketing and general and administrative expense also includes short-term lease and variable lease costs of approximately $0.3 million and $1.6 million for the three and nine months ended September 30, 2024, respectively, and includes short-term lease and variable lease costs of approximately $0.6 million and $1.6 million for the three and nine months ended September 30, 2023, respectively. | ​ | ​
Schedule of future minimum operating and finance leases | ​
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​ | ​ | Finance | ​ | Operating |  | Total |
Maturity of Lease Liabilities | ​ | Leases | ​ | Leases | ​ | Leases | ​
​ | ​ | (in thousands) | ​
2024 | ​ | $ | 1,566 | ​ | $ | 1,937 | ​ | $ | 3,503 | ​
2025 | ​ |  | 5,930 | ​ |  | 6,671 | ​ |  | 12,601 | ​
2026 | ​ |  | 6,008 | ​ |  | 5,106 | ​ |  | 11,114 | ​
2027 | ​ |  | 6,128 | ​ |  | 3,300 | ​ |  | 9,428 | ​
2028 | ​ | ​ | 6,251 | ​ | ​ | 2,013 | ​ | ​ | 8,264 | ​
Thereafter | ​ | ​ | 55,336 | ​ | ​ | 23,220 | ​ | ​ | 78,556 | ​
Total lease payments | ​ | $ | 81,219 | ​ | $ | 42,247 | ​ | $ | 123,466 | ​
Less interest portion* | ​ | ​ | (37,149) | ​ | ​ | (11,740) | ​ | ​ | (48,889) | ​
Finance lease and operating lease obligations | ​ | $ | 44,070 | ​ | $ | 30,507 | ​ | $ | 74,577 | ​
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* Finance lease interest calculated using the implied interest rate; operating lease interest calculated using estimated corporate borrowing rate. | ​
Schedule of weighted-average remaining lease term and discount rates | ​
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​ | ​ | September 30, | ​
Lease term and discount rate |  | 2024 | ​
Weighted-average remaining lease term (years): | ​ | ​ | ​ | ​
Operating leases | ​ | ​ | 10.8 | ​
Finance leases | ​ |  | 12.3 | ​
Weighted-average discount rate: | ​ | ​ | ​ | ​
Operating leases | ​ |  | 5.5% | ​
Finance leases | ​ |  | 10.5% | ​
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Schedule of cash outflows by lease type | ​
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​ | ​ | Nine months ended September 30,
Cash paid for amounts included in the measurement of lease liabilities |  | 2024 |  | 2023
​ | ​ | (in thousands)
Operating cash outflows from operating leases | ​ | $ | 7,767 | ​ | $ | 7,798
Operating cash outflows from finance leases | ​ |  | 3,561 | ​ |  | 3,668
Financing cash outflows from finance leases | ​ |  | 1,125 | ​ |  | 915
Operating lease assets obtained in exchange for operating lease liabilities | ​ |  | 4,063 | ​ |  | 25,697
Finance lease assets obtained in exchange for new finance lease liabilities | ​ |  | — | ​ |  | —
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