Property, Plant and Equipment (Schedule of Property, Plant and Equipment) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 279,954	$ 268,166
Accumulated depreciation	(76,364)	(62,016)
Property, plant and equipment, net	203,590	206,150
Land and Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	6,934	6,927
Building [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	45,879	43,431
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	218,274	211,784
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 8,867	$ 6,024