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Use of Estimates - Narrative (Details) - Discontinued Operations, Disposed of by Sale - Balcke Durr - Subsidiary of matures AG (the Buyer) € in Millions, $ in Millions	Dec. 31, 2017 USD ($)	Dec. 31, 2017 EUR (€)	Dec. 30, 2016 EUR (€)
Guarantor Obligations [Line Items]
Amount of guarantees	$ 76.1	€ 76.1	€ 79.0
Bank and Surety Bonds
Guarantor Obligations [Line Items]
Amount of guarantees	$ 47.9	€ 47.9	€ 79.0

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+ References

No definition available.

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- Definition

Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=82913245&loc=d3e12069-110248

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