Stock Based Compensation - Schedule of Patient Share Percentage And Performance Multiplier (Detail) - Patient Share RSU Awards	6 Months Ended
	Jun. 30, 2022
Patient Share 19.80%
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Percentage Of Performance Multiplier	200.00%
Patient Share 18%
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Percentage Of Performance Multiplier	100.00%
Patient Share 16.20%
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Percentage Of Performance Multiplier	50.00%
Patient Share below 16.20%
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Percentage Of Performance Multiplier	0.00%