Related Party Transactions - Equity method investments (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
Dec. 31, 2024 |
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| Related Party Transaction [Line Items] | |||||
| Loan | $ 4,331 | $ 4,331 | $ 4,267 | ||
| Mezzanine Equity | 140 | 140 | 34 | ||
| Currency translation adjustment | 77 | 45 | |||
| Interest income | 3,237 | $ 4,520 | 6,836 | $ 9,637 | |
| Share of net loss of equity method investee | 676 | 606 | |||
| Dahae Energy Co., Ltd | Equity method investee | |||||
| Related Party Transaction [Line Items] | |||||
| Bond | 3,169 | 3,169 | 3,105 | ||
| Loan | 1,162 | 1,162 | 1,161 | ||
| Warrants | 607 | 607 | 607 | ||
| Equity Method Investment | 1,227 | 1,227 | 520 | ||
| Mezzanine Equity | 140 | 140 | $ 34 | ||
| Equity method investment | 704 | 662 | |||
| Interest income | 74 | 147 | |||
| Share of net loss of equity method investee | 536 | 606 | |||
| Other comprehensive income | 78 | 45 | |||
| BMW | Related Party | |||||
| Related Party Transaction [Line Items] | |||||
| Equity method investment | $ 0 | $ 430 | $ 132 | $ 5,410 | |
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- Definition The change in equity method of investment from income. No definition available.
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- Definition This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amortized cost excluding accrued interest, after allowance for credit loss, of financing receivable. Excludes net investment in lease. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, before tax, of realized and unrealized gain (loss) from foreign currency transaction. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of income (loss) for proportionate share of equity method investee's income (loss). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of investment in marketable security. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, after tax, of other comprehensive income (loss) (OCI) for proportionate share of equity method investee's OCI. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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/2003/role/disclosureRef
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- Definition Carrying amount, attributable to parent, of an entity's issued and outstanding stock which is not included within permanent equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. Includes stock with a put option held by an ESOP and stock redeemable by a holder only in the event of a change in control of the issuer. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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