Amortization Expense Included in Consolidated Statements of Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Finite Lived Intangible Assets [Line Items]
Amortization expense	$ 1,117	$ 1,124	$ 2,565
Cost of revenue
Finite Lived Intangible Assets [Line Items]
Amortization expense	447	453	899
Selling and Marketing Expense
Finite Lived Intangible Assets [Line Items]
Amortization expense	$ 670	$ 671	$ 1,666