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Basis of Presentation and Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2013
Estimated Useful Lives of Property and Equipment
We compute depreciation by the straight-line method based on the following estimated useful lives:
 
Years
Land improvements
5 to 20
Buildings and leasehold improvements
5 to 50
Machinery and equipment
3 to 15