v3.25.4
Employee Severance Benefits - Additional Information (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
General and Administrative Expense              
Restructuring Cost And Reserve [Line Items]              
Employee severance benefits $ 300 $ 1,400 $ 0 $ 300 $ 100 $ 1,500  
Selling and Marketing Expense              
Restructuring Cost And Reserve [Line Items]              
Employee severance benefits $ 0 $ 65   $ 18 $ 16 $ 14 $ 0