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Property and Equipment (Tables)

9 Months Ended

Sep. 30, 2017

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Property and equipment are stated at cost. Depreciation is calculated using the straight-line method over estimated useful lives as follows:

	Useful Lives
Aircraft and components	10 to 20 years
Buildings	39 years
Building improvements	7 to 15 years
Computer equipment	2 to 6 years
Demonstration units	3 years
Furniture and office equipment	2 to 6 years
Leasehold improvements	Lesser of useful life or term of lease
Machinery and equipment	5 to 7 years
Tooling	3 years
Vehicles	5 years

Property and equipment, net, consists of the following (in thousands):

	September 30, 2017				December 31, 2016
Building and building improvements	$	86,023			$	85,966
Machinery and equipment	45,718				41,683
Aircraft and vehicles	25,329				45
Land	23,762				23,762
Leasehold improvements	15,015				8,289
Computer equipment	14,440				13,549
Tooling	13,667				12,895
Furniture and office equipment	10,821				9,669
Demonstration units	489				448
Construction-in-progress	8,434				7,923
Total property and equipment	243,698				204,229
Accumulated depreciation and amortization	(79,119		)		(68,233		)
Property and equipment, net	$	164,579			$	135,996

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- References

No definition available.

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- Definition

Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(13))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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