Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2013

Major Classes of Property, Plant and Equipment, at Cost

The major classes of property, plant and equipment, at cost, at December 31, 2013 and 2012 are as follows:

	2013			2012
	(Dollars in thousands)
Land, buildings and leasehold improvements	$	199,741		$	201,155
Machinery and equipment		322,060			313,325
Computer equipment and software		102,527			70,618
Construction in progress		55,092			41,424
		679,420			626,522
Less: Accumulated depreciation		(353,520	)		(328,577	)
Property, plant and equipment, net	$	325,900		$	297,945