Fair Value Measurements - Narrative (Details) - USD ($) |
1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended | |||
|---|---|---|---|---|---|---|---|
Apr. 30, 2024 |
Sep. 30, 2025 |
Sep. 30, 2024 |
Sep. 30, 2025 |
Sep. 30, 2024 |
Dec. 31, 2024 |
Jun. 30, 2023 |
|
| Fair Value, Option, Quantitative Disclosures [Line Items] | |||||||
| Unrealized gains or losses | $ 0 | $ 0 | |||||
| Foreign exchange loss | $ (358,000) | $ (393,000) | $ (37,000) | ||||
| Impairment | 0 | $ 0 | 0 | $ 0 | |||
| GridBeyond Limited | |||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | |||||||
| Cash received from sale of investment | $ 1,800,000 | ||||||
| Loss on sale | 172,000 | ||||||
| Foreign exchange loss | $ 49,000 | ||||||
| Other Noncurrent Assets | Fair Value, Inputs, Level 3 | |||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | |||||||
| Investment carried at cost | $ 2,750,000 | $ 2,750,000 | $ 2,750,000 | ||||
| Other Noncurrent Assets | Fair Value, Inputs, Level 2 | |||||||
| Fair Value, Option, Quantitative Disclosures [Line Items] | |||||||
| Investment, estimated fair value | $ 2,021,000 | ||||||
| X | ||||||||||
- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of foreign currency translation gain (loss) in the disposal group, including discontinued operation, recognized in the statement of income as a result of the sale or complete or substantially complete liquidation of an investment in a foreign entity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of gain (loss) on sale or disposal of an equity method investment. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- 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/2003/role/exampleRef
|
| X | ||||||||||
- Definition Cost of the investment. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Fair value of investment in security owned. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Cash and Cash Equivalents Unrealized Gain (Loss) No definition available.
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|