Segment and Customer Concentration Information - Schedule of Segment Operating Results and Reconciliation to the Consolidated Balances (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Revenue:
Total revenue	$ 18,749	$ 15,493	$ 53,269	$ 52,911
Depreciation and amortization			12,956	20,169
Impairment of goodwill and intangible assets			1,475		$ 3,250
Loss from operations	(74,662)	(115,857)	(186,413)	(369,349)
Reconciliation of profit or loss
Other income (expense), net	(11,208)	143,418	(2,750)	140,611
Loss before provision for income taxes	(85,870)	27,561	(189,163)	(228,738)
Other significant items:
Total assets	203,516	403,414	203,516	403,414	365,213
Inventory	16,103	17,636	16,103	17,636	$ 14,908
Products
Revenue:
Total revenue	13,689	12,681	38,628	43,721
Services
Revenue:
Total revenue	5,060	2,812	14,641	9,190
Reportable Segments
Revenue:
Total revenue	21,217	19,596	62,654	67,689
Depreciation and amortization	4,184	5,710	12,956	20,169
Impairment of goodwill and intangible assets			0	0
Other segment items	91,695	129,743	236,111	416,869
Intersegment Eliminations
Revenue:
Total revenue	(2,468)	(4,103)	(9,385)	(14,778)
Autonomy Solutions
Revenue:
Total revenue	11,381	9,766	35,444	36,066
Autonomy Solutions | Reportable Segments
Revenue:
Total revenue	11,381	9,766	35,444	36,066
Depreciation and amortization	3,404	4,981	10,685	18,055
Impairment of goodwill and intangible assets			0	0
Other segment items	75,264	110,917	194,676	368,730
Loss from operations	(67,287)	(106,132)	(169,917)	(350,719)
Other significant items:
Total assets	160,010	361,127	160,010	361,127
Inventory	12,488	13,523	12,488	13,523
Autonomy Solutions | Reportable Segments | Products
Revenue:
Total revenue	8,907	9,386	27,649	36,371
Autonomy Solutions | Reportable Segments | Services
Revenue:
Total revenue	2,474	380	7,795	(305)
Autonomy Solutions | Intersegment Eliminations
Revenue:
Total revenue	0	0	0	0
ATS
Revenue:
Total revenue	7,368	5,727	17,825	16,845
ATS | Reportable Segments
Revenue:
Total revenue	9,836	9,830	27,210	31,623
Depreciation and amortization	780	729	2,271	2,114
Impairment of goodwill and intangible assets			0	0
Other segment items	16,431	18,826	41,435	48,139
Loss from operations	(7,375)	(9,725)	(16,496)	(18,630)
Other significant items:
Total assets	43,506	42,287	43,506	42,287
Inventory	3,615	4,113	3,615	4,113
ATS | Reportable Segments | Products
Revenue:
Total revenue	4,782	3,295	10,979	7,350
ATS | Reportable Segments | Services
Revenue:
Total revenue	2,586	2,432	6,846	9,495
ATS | Intersegment Eliminations
Revenue:
Total revenue	$ (2,468)	$ (4,103)	$ (9,385)	$ (14,778)