Summary of Activity in Goodwill (Detail) $ in Thousands	12 Months Ended
Dec. 31, 2019 USD ($)
Goodwill [Line Items]
Beginning Balance	$ 9,286
Acquisition of business	1,173
Cancellation of remaining holdback shares	(340)
Measurement period adjustments	91
Currency translation adjustment	28
Ending Balance	10,238
Premises
Goodwill [Line Items]
Beginning Balance	5,796
Acquisition of business	1,173
Cancellation of remaining holdback shares	(340)
Measurement period adjustments	27
Currency translation adjustment	28
Ending Balance	6,684
Identity
Goodwill [Line Items]
Beginning Balance	3,490
Measurement period adjustments	64
Ending Balance	$ 3,554

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.

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