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LEASES - Narrative (Details) $ in Thousands | Jun. 30, 2025 ft² | Dec. 31, 2024 USD ($) | May 31, 2024 ft² | Mar. 31, 2024 USD ($) ft² | Feb. 29, 2024 ft² | Dec. 31, 2023 USD ($) | Dec. 18, 2023 ft²
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Lessee, Lease, Description [Line Items] |  |  |  |  |  |  |
Renewal term (in years) |  | 5 years |  |  |  |  |
Obligations under current leases | $ |  | $ 2,581 |  |  |  | $ 3,944 |
Operating lease, liability, current, statement of financial position, [extensible enumeration] |  | Accrued expenses and other current liabilities |  |  |  | Accrued expenses and other current liabilities |
Long-term obligation under operating leases | $ |  | $ 54,656 |  |  |  | $ 21,094 |
New York, New York |  |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |  |
Area of office building |  |  |  |  |  |  | 85,666
Seattle, Washington |  |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |  |
Area of office building |  |  |  |  | 7,940 |  |
Lease term (in months) |  |  |  |  | 63 months |  |
Pittsburgh, Pennsylvania |  |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |  |
Leased square footage |  |  |  | 110,008 |  |  |
Cost related to improvement to the premise | $ |  |  |  | $ 6,800 |  |  |
Pittsburgh, Pennsylvania | Forecast |  |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |  |
Area of office building | 148,266 |  |  |  |  |  |
Beijing, China |  |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |  |
Area of office building |  |  | 16,314,000 |  |  |  |
Lease term (in months) |  |  | 39 months |  |  |  |

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