Stock-Based Awards - Summary of Stock Option Activity Including Performance Based Options (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	6 Months Ended	9 Months Ended	12 Months Ended
	Mar. 31, 2023	Jun. 30, 2023	Sep. 30, 2022
Options
Outstanding as of beginning of period	3,993	3,993
Granted	755
Exercised	(124)
Forfeited	(169)
Outstanding as of end of period		4,455	3,993
Options vested and expected to vest as of end of period		4,455
Options exercisable as of end of period		2,922
Weighted Average Exercise Price
Outstanding	$ 53.57	$ 53.57
Granted	44.87
Exercised	17.83
Forfeited	$ 62.89
Outstanding		52.74	$ 53.57
Options vested and expected to vest as of end of period		52.74
Options exercisable as of end of period		$ 51.92
Weighted Average Remaining Contractual Term
Outstanding as of end of period		6 years 3 months 18 days	6 years 2 months 12 days
Options vested and expected to vest as of end period		6 years 3 months 18 days
Options exercisable as of end of period		5 years
Aggregate Intrinsic Value
Aggregate Intrinsic Value		$ 2	$ 28,778
Options vested and expected to vest as of December 31, 2021		2
Options exercisable as of end of period		$ 2