Summary of Significant Accounting Policies (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Summary of Significan Accounting Policies [Abstract]
Accumulated Other Comprehensive Loss, Foreign Currency Translation Adjustment, Net of Tax	$ 19,900	$ 20,286	$ 17,145
Restricted Cash	187	3,279
Property, Plant and Equipment
Stock Repurchase Program, Number of Shares Authorized to be Repurchased	2,000,000
Machine warranty, range minimum (in years)	1
Machine warranty, range maximum (in years)	4
Advertising Costs	$ 6,466	$ 6,728	$ 5,516
Buildings and improvements
Property, Plant and Equipment
Property, Plant and Equipment, Useful life, Average (in years)	30
Property, Plant and Equipment, Other Types
Property, Plant and Equipment
Property, Plant and Equipment, Useful life, Minimum (in years)	3
Property, Plant and Equipment, Useful life, Maximum (in years)	15