Organization and Significant Accounting Policies - Summary of Intangible Asset Activity (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016
Gross Carrying Amount	$ 3,610	$ 6,219
Accumulated Amortization	(1,939)	(4,423)
Net Carrying Amount	1,671	1,796
Customer relationships
Gross Carrying Amount	1,198	3,119
Accumulated Amortization	(1,138)	(2,979)
Net Carrying Amount	$ 60	140
Trademarks and trade names
Amortization Period	8 years
Patent assets
Gross Carrying Amount	$ 2,412	3,100
Accumulated Amortization	(801)	(1,444)
Net Carrying Amount	$ 1,611	$ 1,656
Minimum \| Customer relationships
Amortization Period	11 years
Minimum \| Patent assets
Amortization Period	1 year
Minimum \| Acquired technologies
Amortization Period	5 years
Maximum \| Customer relationships
Amortization Period	15 years
Maximum \| Patent assets
Amortization Period	20 years
Maximum \| Acquired technologies
Amortization Period	8 years

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.

No definition available.

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- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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- Definition

Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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