Property, Plant, and Equipment, Net Property, Plant, and Equipment, Net (Schedule of Property, Plant, and Equipment, Net) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	$ 605,753	$ 563,567
Less accumulated depreciation	(326,380)	(303,043)
Property, plant, and equipment, net	279,373	260,524
Land and Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	21,321	20,036
Building and Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	165,582	166,365
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	212,097	206,805
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	65,540	54,914
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	78,631	72,426
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	$ 62,582	$ 43,021