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Intangible Assets - Cost and Net (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Intangible assets, net
June 30, 2017 balance at cost	$ 78,452
Accumulated amortization	(38,368)
Ending Balance	40,084	$ 46,549
Capitalized Technology
Intangible assets, net
June 30, 2017 balance at cost	37,256
Accumulated amortization	(29,194)
Ending Balance	8,062	11,392
Customer Relationships
Intangible assets, net
June 30, 2017 balance at cost	27,825
Accumulated amortization	(4,679)
Ending Balance	23,146	24,774
Other
Intangible assets, net
June 30, 2017 balance at cost	13,371
Accumulated amortization	(4,495)
Ending Balance	$ 8,876	$ 10,383

X

- 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

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

Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
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-Section 50
-Paragraph 2
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