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Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2017
Summary of Significant Accounting Policies [Abstract]  
Useful Life of Property, Plant and Equipment



 

Description of Assets

Life

Buildings and improvements

15-40 years

Leasehold improvements                                  

6-10 years

Machinery and equipment

3-7 years

Software

3-7 years