Stock-Based Compensation (Tables)

3 Months Ended

Dec. 31, 2022

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary of stock-based compensation expense

	Three Months Ended December 31,
	2022		2021
Restricted stock units	$	1,759	$	7,197
Employee stock purchase plan		346		694
Total stock-based compensation expense	$	2,105	$	7,891

Restricted Stock Unit Activity

		Time-Based	Stock	Performance-
	Total Units	Units	Grants	Based Units
Three months ended December 31, 2022	485,880	225,139	—	260,741
Three months ended December 31, 2021	149,348	59,776	24	89,548

		Weighted
		Average
		Grant-Date
	Shares	Fair Value
Outstanding at September 30, 2022	538,238	$	71.99
Granted	485,880		59.57
Vested	(178,859)		70.63
Forfeited	(40,056)		80.35
Outstanding at December 31, 2022	805,203		68.95