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Property and Equipment, Net (Tables)
12 Months Ended
Dec. 31, 2023
Property, Plant and Equipment [Abstract]  
Property and Equipment, Net

Property and equipment, net, as of December 31, consisted of the following:

 

 

 

Estimated
Useful Life

 

2023

 

 

2022

 

Lab and test equipment

 

7 years

 

$

20,341

 

 

$

21,171

 

Vehicles

 

5 years

 

 

6,033

 

 

 

5,732

 

Equipment

 

3-7 years

 

 

50,387

 

 

 

40,940

 

Furniture and fixtures

 

7 years

 

 

2,963

 

 

 

2,841

 

Leasehold improvements

 

7 years

 

 

10,808

 

 

 

8,576

 

Aircraft

 

10-20 years

 

 

12,312

 

 

 

931

 

Building

 

39 years

 

 

5,748

 

 

 

2,975

 

 

 

 

 

108,592

 

 

 

83,166

 

Land

 

 

 

 

1,089

 

 

 

725

 

Construction in progress

 

 

 

 

3,956

 

 

 

3,150

 

Less accumulated depreciation

 

 

 

 

(56,812

)

 

 

(50,996

)

   Total property and equipment—net

 

 

 

$

56,825

 

 

$

36,045