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Summary of Significant Accounting Policies - Goodwill and Other Intangibles (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2017 USD ($)	Sep. 30, 2017 USD ($) segment
Goodwill and Other Intangibles
Goodwill impairment | $	$ 0	$ 0
Previously reported
Goodwill and Other Intangibles
Number of reporting units | segment		2
Patents
Goodwill and Other Intangibles
Estimated useful lives of assets		20 years
Minimum | Proprietary Technology
Goodwill and Other Intangibles
Estimated useful lives of assets		3 years
Minimum | Customer Relationships
Goodwill and Other Intangibles
Estimated useful lives of assets		5 years
Maximum | Proprietary Technology
Goodwill and Other Intangibles
Estimated useful lives of assets		7 years
Maximum | Customer Relationships
Goodwill and Other Intangibles
Estimated useful lives of assets		12 years

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- 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.

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13777-109266

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
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-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

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