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Subsequent Events (Detail Textual) - Subsequent Events - USD ($) $ in Millions	Nov. 01, 2017	Oct. 01, 2017
United Kingdom IT Consulting Services and Software Engineering Company
Business Acquisition [Line Items]
Percentage of outstanding shares acquired		100.00%
Purchase consideration		$ 8.8
London-Based Software and Mapping Data Company
Business Acquisition [Line Items]
Percentage of outstanding shares acquired	100.00%
Purchase consideration	$ 6.6

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477

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-Name Accounting Standards Codification
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-Topic 805
-SubTopic 30
-Section 30
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