Stockholders’ Equity (Tables)

6 Months Ended

Mar. 31, 2018

Stockholders’ Equity

Summary of RSU activity

The following table summarizes our RSU activity:

	Unvested Restricted Stock Units
		Weighted-Average
	Number of Shares	Grant-Date Fair Value
Unvested at September 30, 2017	1,045,187		45.86
Granted	332,686		61.13
Vested	(125,837)		46.37
Forfeited	(230,391)		48.14
Unvested at March 31, 2018	1,021,645	$	50.26