Stock-Based Compensation (Tables)

3 Months Ended

Dec. 31, 2018

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

Stock-Based Compensation Expense

The following table reflects stock-based compensation expense recorded during the three months ended December 31, 2018 and 2017 (in thousands):

	Three Months Ended December 31,
	2018		2017
Restricted stock units	$	3,960	$	4,385
Employee stock purchase plan		216		178
Total stock-based compensation expense	$	4,176	$	4,563

Restricted Stock Unit Activity

The following table reflects restricted stock units granted during the three months ended December 31, 2018 and 2017:

		Time-Based		Performance-
	Total Units	Units	Stock Grants	Based Units
Three months ended December 31, 2018	745,776	321,835	552	423,389
Three months ended December 31, 2017	471,151	190,266	546	280,339

The following table summarizes restricted stock unit activity for the three months ended December 31, 2018:

		Weighted
		Average
		Grant-Date
	Shares	Fair Value
Outstanding at September 30, 2018	2,194,512	$	17.20
Granted	745,776		30.49
Vested	(851,702)		18.70
Forfeited	(9,199)		10.91
Outstanding at December 31, 2018	2,079,387		23.58