Goodwill and Intangible Assets - Changes in the Carrying Amount of Goodwill (Detail) $ in Thousands	12 Months Ended
Dec. 31, 2015 USD ($)
Finite-Lived Intangible Assets [Line Items]
Goodwill, beginning Balance	$ 12,049
Goodwill, ending Balance	29,910
Zero2Ten, Branchbird and M2 Dynamics [Member]
Finite-Lived Intangible Assets [Line Items]
Adjustments to goodwill	$ 17,861

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

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- Definition

Amount of increase (decrease) of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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