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Accrued expenses and other current liabilities - Schedule of Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands | Jun. 30, 2026 | Dec. 31, 2025 | Jun. 30, 2025
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Accrued Expenses and Other Current Liabilities [Abstract] |  |  |
Accrued cost of revenue | $ 32,717 | $ 16,156 |
Accrued compensation | 2,801 | 2,699 |
Accrued interest | 0 | 399 |
Other accrued expenses | 4,292 | 4,516 |
Total accrued expenses | 39,810 | 23,770 |
Warranty reserves | 10,397 | 10,357 | $ 9,861
Current portion of operating lease liability | $ 529 | $ 404 |
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] | Total other current liabilities | Total other current liabilities |
Non-federal tax obligations (collections), net | $ (395) | $ (36) |
Total other current liabilities | $ 11,321 | $ 10,725 |

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- Definition Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(20)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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