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Description of Business and Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2018
Accounting Policies [Abstract] |
Estimated Useful Lives of Property and Equipment | The estimated useful lives, in years, are shown below:
|  | Useful Lives
Equipment |  | 1.25-15
Buildings |  | 15-20
Other |  | 3-12

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