Property and equipment

12 Months Ended

Dec. 31, 2013

Property, Plant and Equipment [Abstract]

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



		December 31,
	Estimated useful lives	2013			2012
Land		$	6,718		$	3,926
Buildings and leasehold improvements	7-20	53,025			47,390
Computer equipment	3-5	29,374			14,227
Machinery & equipment	5-10	102,937			94,198
Furniture & fixtures	3-10	6,625			12,678
Vehicles	3-5	11,247			11,328
Construction in progress		25,202			13,427
		235,128			197,174
Less: accumulated depreciation		(88,526		)	(79,343		)
Property & equipment, net		146,602			117,831

Rental equipment	3-10	110,455			105,162
Less: accumulated depreciation		(76,765		)	(70,010		)
Rental equipment, net		33,690			35,152

Total property & equipment, net		$	180,292		$	152,983

Depreciation expense was $36.2 million, $31.5 million and $26.2 million for the years ended December 31, 2013, 2012 and 2011.

- Definition

The entire disclosure for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures.

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