Summary of Carrying Amount of Goodwill Resulting from Acquisition of 3VR, Thursby, and Viscount (Detail) $ in Thousands	9 Months Ended
Sep. 30, 2019 USD ($)
Goodwill [Line Items]
Beginning Balance	$ 9,286
Ending Balance	10,128
3VR, Thursby and Viscount
Goodwill [Line Items]
Beginning Balance	9,286
Acquisition of business	1,173
Cancellation of holdback shares in connection with acquisition	(340)
Currency translation adjustment	9
Ending Balance	10,128
3VR, Thursby and Viscount \| Premises
Goodwill [Line Items]
Beginning Balance	5,796
Acquisition of business	1,173
Cancellation of holdback shares in connection with acquisition	(340)
Currency translation adjustment	9
Ending Balance	6,638
3VR, Thursby and Viscount \| Identity
Goodwill [Line Items]
Beginning Balance	3,490
Ending Balance	$ 3,490

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.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

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