Stock-Based Compensation - Summary of Remaining Unrecognized Share-based Compensation Expense Related to Outstanding Share-based Awards (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2021 USD ($)
Service-based Awards [Member]
Stock Based Compensation [Line Items]
Remaining unrecognized share-based compensation expense	$ 2,140
Share based compensation arrangement by share based payment award options weighted average life in years	1 year 6 months
Performance-based Awards [Member]
Stock Based Compensation [Line Items]
Remaining unrecognized share-based compensation expense	$ 2,185
Share based compensation arrangement by share based payment award options weighted average life in years	2 years 7 months 6 days