Property and Equipment (PPE Schedule) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment
Buildings and improvements	$ 161,805	$ 151,270
Movable equipment and software	228,212	208,541
Construction in Progress	2,321	2,313
Property, Plant and Equipment, Gross	392,338	362,124
Less accumulated depreciation	(222,443)	(195,512)
Property, Plant and Equipment, Net	$ 169,895	$ 166,612