Amortization Expense Included in Consolidated Statements of Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Finite Lived Intangible Assets [Line Items]
Amortization expense	$ 1,032	$ 1,117	$ 1,124
Cost of revenue
Finite Lived Intangible Assets [Line Items]
Amortization expense	450	447	453
Selling and Marketing Expense
Finite Lived Intangible Assets [Line Items]
Amortization expense	$ 582	$ 670	$ 671