SIGNIFICANT ACCOUNTING POLICIES - Going Concern (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Nov. 10, 2025	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Jun. 30, 2025	Dec. 31, 2024	Jun. 30, 2024	Dec. 31, 2023
Significant Accounting Policies [Line Items]
Stockholder's equity		$ 358,112	$ 486,088	$ 358,112	$ 486,088	$ 356,130	$ 387,895	$ 454,988	$ 564,190
Accumulated deficit		(1,138,715)		(1,138,715)			(1,092,958)
Cash and cash equivalents		90,748	63,585	90,748	63,585		73,007
Restricted cash, current		51,879		51,879			36,572
Other assets, current		302,638		302,638
Total		118,786	119,574	118,786	119,574	$ 117,347	111,728	$ 94,237	$ 79,153
Short-term bank borrowings		84,390		84,390			70,666
Convertible debt		26,203		26,203
Other accrued liabilities, current		252,097		252,097
Operating income (loss)		12,994	$ 7,186	48,140	(114,673)
Net cash generated from/(used in) operating activities				59,486	$ (3,287)
Short-term bank borrowings		84,390		84,390			$ 70,666
Short-term debt, refinanced, amount				23,458
Subsequent Event | Controlled Equity Offering Sales Agreement
Significant Accounting Policies [Line Items]
Proceeds from issuance of common stock	$ 12,600
Capital Commitments
Significant Accounting Policies [Line Items]
Capital commitments		10,111		10,111
Capital commitments payable		7,706		7,706
Inventories
Significant Accounting Policies [Line Items]
Purchase obligation		$ 44,140		$ 44,140