Property, Plant, and Equipment, Net (Schedule of Property, Plant, and Equipment, Net) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	$ 688,326	$ 654,965
Less accumulated depreciation	(408,676)	(363,278)
Property, plant, and equipment, net	279,650	291,687
Land and Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	20,862	20,832
Building and Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	165,746	165,182
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	301,566	286,055
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	79,103	75,682
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	107,574	102,056
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	$ 13,475	$ 5,158