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Summary of Accounting Policies - Property, Plant and Equipment Table (Details)	12 Months Ended
	Dec. 31, 2017
Buildings | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life	20 years
Buildings | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life	30 years
Machinery | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life	8 years
Machinery | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life	12 years
Other equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life	3 years
Other equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life	5 years

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

+ Details

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