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Property and Equipment, Net - Property and Equipment, Net (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 136,214	$ 126,943
Less: Accumulated depreciation	(77,430)	(68,249)
Total property and equipment— net	62,952	63,776
Lab and test equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	24,919	24,421
Vehicles
Property Plant And Equipment [Line Items]
Property and equipment, gross	6,625	6,360
Equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	69,031	60,763
Furniture and fixtures
Property Plant And Equipment [Line Items]
Property and equipment, gross	3,281	3,221
Leasehold improvements
Property Plant And Equipment [Line Items]
Property and equipment, gross	14,224	14,029
Aircraft
Property Plant And Equipment [Line Items]
Property and equipment, gross	12,386	12,386
Building
Property Plant And Equipment [Line Items]
Property and equipment, gross	5,748	5,763
Land
Property Plant And Equipment [Line Items]
Property and equipment, gross	1,089	1,089
Construction in Progress
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 3,079	$ 3,993

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