CONDENSED CONSOLIDATED STATEMENTS OF CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS’ EQUITY - USD ($) $ in Thousands		Total	Preferred Stock (Series A, B, C, and C-1)		Common Stock Including Super Voting Common Stock and Treasury Stock		Additional Paid-In Capital	Accumulated Deficit	Foreign Currency Translation Adjustments	Common Stock Including Super Voting Common Stock and Treasury Stock	Common Stock Including Super Voting Common Stock and Treasury Stock Common Stock Including Super Voting Common Stock and Treasury Stock	Common Stock Including Super Voting Common Stock and Treasury Stock Additional Paid-In Capital	Series C Preferred Stock	Series C Preferred Stock Preferred Stock (Series A, B, C, and C-1)	Series C-1 Preferred Stock	Series C-1 Preferred Stock Preferred Stock (Series A, B, C, and C-1)
Beginning balance (in shares) at Dec. 31, 2023	[1]		81,504,797		45,042,081
Beginning balance at Dec. 31, 2023		$ 385,438	$ 1,067,495		$ (5,357)		$ 0	$ (676,687)	$ (13)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock (in shares)	[1]				371,563
Issuance of stock		1,231					1,231
Convertible preferred stock PIK dividend		(19,987)	$ 19,987				(10,403)	(9,584)
Repurchase of common stock (in shares)	[1]				(112,551)
Repurchase of common stock		(530)			$ (530)
Stock based compensation		9,172					9,172
Foreign currency translation adjustments		(47)							(47)
Net loss		(199,203)						(199,203)
Ending balance (in shares) at Sep. 30, 2024	[1]		81,504,797		45,301,093
Ending balance at Sep. 30, 2024		196,061	$ 1,087,482		$ (5,887)		0	(885,474)	(60)
Beginning balance (in shares) at Jun. 30, 2024	[1]		81,504,797		45,245,488
Beginning balance at Jun. 30, 2024		266,274	$ 1,080,447		$ (5,887)		0	(808,203)	(83)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock (in shares)	[1]				55,605
Issuance of stock		261					261
Convertible preferred stock PIK dividend		(7,035)	$ 7,035				(4,828)	(2,207)
Stock based compensation		4,567					4,567
Foreign currency translation adjustments		23							23
Net loss		(75,064)						(75,064)
Ending balance (in shares) at Sep. 30, 2024	[1]		81,504,797		45,301,093
Ending balance at Sep. 30, 2024		$ 196,061	$ 1,087,482		$ (5,887)		0	(885,474)	(60)
Beginning balance (in shares) at Dec. 31, 2024		37,040,639	99,565,570	[1]	45,542,122	[1]
Beginning balance at Dec. 31, 2024		$ 435,943	$ 1,411,313		$ (5,887)		0	(969,276)	(207)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock (in shares)	[1]										537,933			8,384,459		23,545,451
Issuance of stock										$ 2,095		$ 2,095	$ 206,241	$ 206,241	$ 724,278	$ 724,278
Convertible preferred stock PIK dividend		(39,136)	$ 39,136				(19,222)	(19,914)					(16,597)		(468)
Stock based compensation		16,819					16,819
Warrant expense		308					308
Foreign currency translation adjustments		114							114
Net loss		$ (595,909)						(595,909)
Ending balance (in shares) at Sep. 30, 2025		37,578,571	131,495,480	[1]	46,080,055	[1]
Ending balance at Sep. 30, 2025		$ 789,889	$ 2,380,968		$ (5,887)		0	(1,585,099)	(93)
Beginning balance (in shares) at Jun. 30, 2025	[1]		99,735,577		45,895,052
Beginning balance at Jun. 30, 2025		293,212	$ 1,438,733		$ (5,887)		0	(1,139,651)	17
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock (in shares)	[1]										185,003			8,214,452		23,545,451
Issuance of stock										$ 849		$ 849	203,361	$ 203,361	724,278	$ 724,278
Convertible preferred stock PIK dividend		(14,596)	$ 14,596				(6,362)	(8,234)					$ (6,661)		$ (468)
Stock based compensation		5,205					5,205
Warrant expense		308					308
Foreign currency translation adjustments		(110)							(110)
Net loss		$ (437,214)						(437,214)
Ending balance (in shares) at Sep. 30, 2025		37,578,571	131,495,480	[1]	46,080,055	[1]
Ending balance at Sep. 30, 2025		$ 789,889	$ 2,380,968		$ (5,887)		$ 0	$ (1,585,099)	$ (93)

[1] Share amounts have been adjusted to reflect the 6.3811681-for-1 forward stock split that became effective on November 3, 2025 in connection with the initial public offering (see Note 1).