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Significant Accounting Policies - Intangible Asset Depreciation and Amortization Estimated Useful Lives (Details)	12 Months Ended
	Dec. 31, 2018
Patents
Finite-Lived Intangible Assets [Line Items]
Estimated useful life	12 years
Patents | Minimum
Finite-Lived Intangible Assets [Line Items]
Estimated useful life	5 years
Patents | Maximum
Finite-Lived Intangible Assets [Line Items]
Estimated useful life	17 years
Trade Names
Finite-Lived Intangible Assets [Line Items]
Estimated useful life	16 years
Trade Names | Minimum
Finite-Lived Intangible Assets [Line Items]
Estimated useful life	5 years
Trade Names | Maximum
Finite-Lived Intangible Assets [Line Items]
Estimated useful life	20 years
Customer Relationships
Finite-Lived Intangible Assets [Line Items]
Estimated useful life	14 years
Customer Relationships | Minimum
Finite-Lived Intangible Assets [Line Items]
Estimated useful life	6 years
Customer Relationships | Maximum
Finite-Lived Intangible Assets [Line Items]
Estimated useful life	20 years
Unpatended technology and other
Finite-Lived Intangible Assets [Line Items]
Estimated useful life	12 years
Unpatended technology and other | Minimum
Finite-Lived Intangible Assets [Line Items]
Estimated useful life	7 years
Unpatended technology and other | Maximum
Finite-Lived Intangible Assets [Line Items]
Estimated useful life	20 years

X

- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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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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- Details

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- Details

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- Details

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- Details

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- Details

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