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Significant Accounting Policies (Schedule of Estimated Useful Lives) (Details)
12 Months Ended
Dec. 31, 2013
Land and building [Member]
 
Property, Plant and Equipment [Line Items]  
Estimated Useful Life 20 years
Computer hardware and software [Member]
 
Property, Plant and Equipment [Line Items]  
Estimated Useful Life 3 years
Furniture and fixtures [Member]
 
Property, Plant and Equipment [Line Items]  
Estimated Useful Life 5 years
Mobile equipment [Member]
 
Property, Plant and Equipment [Line Items]  
Estimated Useful Life 3 years