Summary of Activity in Goodwill (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Goodwill [Line Items]
Beginning Balance	$ 10,218	$ 10,190
Currency translation adjustment	(26)	2
Ending Balance	10,192	10,192
Identity
Goodwill [Line Items]
Beginning Balance	3,554	3,554
Ending Balance	3,554	3,554
Premises
Goodwill [Line Items]
Beginning Balance	6,664	6,636
Currency translation adjustment	(26)	2
Ending Balance	$ 6,638	$ 6,638