Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Summary of Stock-Based Compensation Expense Related to Stock Option Awards (Detail)

v3.20.1
Stock-Based Compensation - Summary of Stock-Based Compensation Expense Related to Stock Option Awards (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock-based compensation expense $ 1,271 $ 1,590
Stock Options [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock-based compensation expense $ 1,006 $ 768