Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2013

Property Plant And Equipment [Abstract]

Summary of Property, Plant and Equipment

Property, plant and equipment consist of the following as of December 31 (in thousands):

	2013			2012
Building and improvements	$	48,774		$	57,435
Machinery and equipment		195,873			218,359
Furniture and fixtures		2,062			1,999
Forklifts and tractors		6,191			5,373
Computer equipment		8,353			7,371
Construction in process		7,619			1,855
Land		8,858			8,858
		277,730			301,250
Accumulated depreciation		(176,947	)		(196,825	)
Total property, plant and equipment, net	$	100,783		$	104,425