Fair Value Measurements - Reconciliation of Financial Instruments Presented at Fair Value (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Fair Value Measurements [Abstract]
(Gain) loss on adjustment to fair value	$ 31,851	$ 2,164
Series F Preferred Stock Embedded Derivatives [Member]
Fair Value Measurements [Abstract]
Beginning of the period	15,853	0	$ 0
Embedded derivatives recognized at issuance of Series F Preferred Stock	0		25,479
(Gain) loss on adjustment to fair value	(47)		(9,626)
End of the period	15,806		15,853
Series F Preferred Stock Warrants [Member]
Fair Value Measurements [Abstract]
Beginning of the period	90,134	0	0
Issuance of Series F Preferred Stock	0		22,115
(Gain) loss on adjustment to fair value	24,299		68,019
End of the period	114,433		90,134
Subordinated Note Warrants - Related Party [Member]
Fair Value Measurements [Abstract]
Beginning of the period	316	$ 4,159	4,159
Loss (gain) on adjustment to fair value	409		(3,843)
End of the period	$ 725		$ 316