Summary of Significant Accounting Policies and Other Information - Narrative (Details) $ in Thousands |
3 Months Ended | ||
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Mar. 31, 2026
USD ($)
segment
boardMember
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Dec. 31, 2025
USD ($)
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Mar. 31, 2025
USD ($)
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| Concentration Risk [Line Items] | |||
| Number of board members | boardMember | 4 | ||
| Number of operating segments | segment | 1 | ||
| Restricted cash | $ 4,448 | $ 3,698 | $ 3,638 |
| Inventory raw materials provided by customers | 100 | 200 | |
| Contract With Customer | |||
| Concentration Risk [Line Items] | |||
| Restricted cash | $ 1,400 | $ 1,400 | |
| Founders | Power Solutions International, Inc. | Minimum | |||
| Concentration Risk [Line Items] | |||
| Subsidiary, ownership percentage, noncontrolling owner | 5.00% | ||
| Founders | Power Solutions International, Inc. | Maximum | |||
| Concentration Risk [Line Items] | |||
| Subsidiary, ownership percentage, noncontrolling owner | 10.00% | ||
| Power Solutions International, Inc. | Weichai America Corp | |||
| Concentration Risk [Line Items] | |||
| Equity method investment, ownership percentage | 46.00% |
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- Definition Number Of Board Members No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity. No definition available.
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- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of advances received from customers under long-term contracts which have been offset against inventories accounts at the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cash restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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