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Summary of Significant Accounting Policies and Other Information (Tables) | 9 Months Ended
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Sep. 30, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Schedules of Concentration of Risk, by Risk Factor | The following table presents customers individually accounting for more than 10% of the Company’s net sales:
|  | For the Three Months Ended September 30, |  | For the Nine Months Ended September 30,
|  | 2025 |  | 2024 |  | 2025 |  | 2024
Customer A |  | ** |  | ** |  | ** |  | 10 | %
Customer B |  | 18 | % |  | 13 | % |  | 20 | % |  | **
Customer C |  | 11 | % |  | ** |  | ** |  | 12 | %
Customer E |  | 10 | % |  | ** |  | 11 | % |  | **
Customer F |  | 17 | % |  | ** |  | 14 | % |  | **
The following table presents customers individually accounting for more than 10% of the Company’s trade accounts receivable:
|  | As of September 30, 2025 |  | As of December 31, 2024
Customer B |  | 21 | % |  | **
Customer D |  | ** |  | 15 | %
Customer C |  | 12 | % |  | **
The following table presents suppliers individually accounting for more than 10% of the Company’s purchases:
|  | For the Three Months Ended September 30, |  | For the Nine Months Ended September 30,
|  | 2025 |  | 2024 |  | 2025 |  | 2024
Supplier A |  | 28 | % |  | 13 | % |  | 23 | % |  | 15 | %
**Less than 10% of the total
Schedule of Inventory and Activity in Inventory Allowance | Inventories consist of the following:
(in thousands) Inventories |  | As of September 30, 2025 |  | As of December 31, 2024
Raw materials |  | $ | 125,204 |  |  | $ | 84,323 |
Work in process |  | 6,638 |  |  | 872 |
Finished goods |  | 28,847 |  |  | 16,812 |
Total inventories |  | 160,689 |  |  | 102,007 |
Inventory allowance |  | (8,466) |  |  | (8,135) |
Inventories, net |  | $ | 152,223 |  |  | $ | 93,872 |
Activity in the Company’s inventory allowance was as follows:
(in thousands) |  | For the Nine Months Ended September 30,
Inventory Allowance |  | 2025 |  | 2024
Balance at beginning of period |  | $ | 8,135 |  |  | $ | 5,730 |
Charged to expense |  | 487 |  |  | 2,910 |
Write-offs |  | (156) |  |  | (412) |
Balance at end of period |  | $ | 8,466 |  |  | $ | 8,228 |
Schedule of Other Accrued Liabilities | Other accrued liabilities consisted of the following:
(in thousands) Other Accrued Liabilities |  | As of September 30, 2025 |  | As of December 31, 2024
Accrued product warranty |  | $ | 7,008 |  |  | $ | 10,233 |
Accrued litigation 1 |  | 1,400 |  |  | 3,847 |
Contract liabilities |  | 12,525 |  |  | 10,184 |
Accrued compensation and benefits |  | 18,604 |  |  | 10,721 |
Accrued interest expense |  | 331 |  |  | 1,237 |
Stock appreciation rights liability 2 |  | 1,174 |  |  | 1,804 |
Non-interest bearing note payable |  | 728 |  |  | 693 |
Customs accrual |  | 4,683 |  |  | 1,162 |
Taxes payable |  | 163 |  |  | 200 |
Other |  | 3,077 |  |  | 4,645 |
Total |  | $ | 49,693 |  |  | $ | 44,726 |
1 As of September 30, 2025 and December 31, 2024 accrued litigation includes accruals related to various ongoing legal matters including associated legal fees. See Note 10. Commitments and Contingencies for further information regarding the various ongoing legal matters. 2 The Company has an incentive compensation plan, which authorizes the granting of a variety of different types of awards including, but not limited to, non-qualified stock options, incentive stock options, Stock Appreciation Rights (“SARs”), Restricted Stock Awards (“RSAs”), deferred stock and performance units to its executive officers, employees, consultants and Directors. T he SAR awards granted for the year ended September 30, 2025 and December 31, 2024 were all liability classified awards and remained outstanding. See Note 13. Stock-Based Compensation in the Company’s 2024 Annual Report for additional information on the SARs and RSAs.
Schedule of Accrued Product Warranty Activities | Accrued product warranty activities are presented below:
(in thousands) |  | For the Nine Months Ended September 30,
Accrued Product Warranty |  | 2025 |  | 2024
Balance at beginning of period |  | $ | 13,972 |  |  | $ | 19,263 |
Current period provision * |  | 4,657 |  |  | 4,398 |
Changes in estimates for preexisting warranties ** |  | 736 |  |  | 2,115 |
Payments made during the period |  | (10,291) |  |  | (10,413) |
Balance at end of period |  | 9,074 |  |  | 15,363 |
Less: current portion |  | 7,008 |  |  | 10,455 |
Noncurrent accrued product warranty (included with Other Noncurrent liabilities) |  | $ | 2,066 |  |  | $ | 4,908 |
*Warranty costs, net of supplier recoveries and other adjustments, were $5.3 million and $5.8 million for the nine months ended September 30, 2025 and 2024, respectively. Supplier recoveries were $0.1 million and $0.7 million for the nine months ended September 30, 2025 and 2024, respectively. **Changes in estimates for preexisting warranties reflect changes in the Company’s estimate of warranty costs for products sold in prior periods. Such adjustments typically occur when claims experience deviates from historical and expected trends. During the nine months ended September 30, 2025, the Company recorded a cost for changes in estimates of preexisting warranties of $0.7 million, or $0.03 per diluted share. During the nine months ended September 30, 2024, the Company recorded a cost of $2.1 million, or $0.09 per diluted share.

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