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BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Long-Lived Asset Geographic Data (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
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Impaired Long-Lived Assets Held and Used [Line Items] |  |
Long-lived assets-net | $ 217,836 | $ 89,216
North America |  |
Impaired Long-Lived Assets Held and Used [Line Items] |  |
Long-lived assets-net | 197,635 | 72,115
Finland |  |
Impaired Long-Lived Assets Held and Used [Line Items] |  |
Long-lived assets-net | 12,133 | 10,950
Sweden |  |
Impaired Long-Lived Assets Held and Used [Line Items] |  |
Long-lived assets-net | 4,441 | 2,523
Ireland |  |
Impaired Long-Lived Assets Held and Used [Line Items] |  |
Long-lived assets-net | 3,598 | 3,599
Other |  |
Impaired Long-Lived Assets Held and Used [Line Items] |  |
Long-lived assets-net | 29 | 29
Long-lived assets related to foreign operations |  |
Impaired Long-Lived Assets Held and Used [Line Items] |  |
Long-lived assets-net | $ 20,201 | $ 17,101

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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. + References No definition available. + Details
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- Definition Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 41 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-41 + Details
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