Summary of Significant Accounting Policies (Property, Plant and Equipment, Net) (Details)
12 Months Ended
Dec. 31, 2012
Minimum [Member] | Machinery and Equipment [Member]
 
Property, Plant and Equipment, Useful Life 3 years
Minimum [Member] | Equipment Leased to Others [Member]
 
Property, Plant and Equipment, Useful Life 5 years
Minimum [Member] | Building [Member]
 
Property, Plant and Equipment, Useful Life 20 years
Maximum [Member] | Machinery and Equipment [Member]
 
Property, Plant and Equipment, Useful Life 10 years
Maximum [Member] | Equipment Leased to Others [Member]
 
Property, Plant and Equipment, Useful Life 10 years
Maximum [Member] | Building [Member]
 
Property, Plant and Equipment, Useful Life 45 years