Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2014

Property, Plant and Equipment [Abstract]

Summary of Property, Plant and Equipment

		December 31,
	Estimated Useful Life	2014		2013
Land owned		$	7,548	$	6,139
Land under capital lease			2,097		1,437
Buildings and improvements owned	15-40 years		52,641		45,964
Buildings under capital lease	20 years		6,225		3,172
Machinery and equipment	3-12 years		408,299		261,842
Construction in process			21,027		20,745
			497,837		339,299
Less - accumulated depreciation			219,395		218,210
Property, plant and equipment, net		$	278,442	$	121,089