Property and Equipment (Tables)

3 Months Ended

Mar. 31, 2014

Property, Plant and Equipment [Abstract]

Components of property, plant and equipment

Property and equipment are as follows (in thousands):

	March 31, 2014			December 31, 2013
Land	$	5,175		$	5,088
Buildings and leasehold improvements	32,711			32,269
Machinery, equipment and rental tools	75,470			71,073
Equipment in progress	4,592			4,601
Furniture and fixtures	2,350			2,400
Transportation equipment	6,441			6,340
Computer equipment and software	8,005			7,617
Property and equipment	134,744			129,388
Less accumulated depreciation	(53,067		)	(50,274		)
Property and equipment, net	$	81,677		$	79,114