Stock-Based Compensation (Tables)

9 Months Ended

Jun. 30, 2015

Disclosure Of Compensation Related Costs, Share-Based Payments [Abstract]

Fair Values of Options, Black-Scholes Option-Pricing Model, Weighted-Average Assumptions

The following table illustrates the assumptions used in the Black-Scholes pricing model for options granted during the nine months ended June 30, 2015:

	2015
Risk-free interest rate	1.83	%
Expected volatility	31.69	%
Expected life (in years)	5.58
Expected dividend yield	0.00	%

Stock Options Outstanding and Activity During the Period

Information regarding the Company’s stock options is summarized below:

					Weighted-
			Weighted-		Average
			Average		Remaining		Aggregate
	Number of		Exercise		Contractual		Intrinsic
	Shares		Price		Life		Value
					(in years)		(in millions)
Outstanding at September 30, 2014		2,364,211	$	22.98
Granted		482,479	$	28.58
Exercised		(257,838)	$	17.71
Canceled		(73,587)	$	29.33
Outstanding at June 30, 2015		2,515,265	$	24.43		6.5	$	23.4
Vested or Expected to Vest at June 30, 2015		2,402,902	$	24.16		6.4	$	23.0
Exercisable at June 30, 2015		1,619,301	$	20.72		5.2	$	20.7

Restricted Shares and Units Outstanding and Activity During the Period

Information regarding the Company’s restricted shares and units is summarized below:

					Weighted-
			Weighted-		Average
			Average		Remaining		Aggregate
	Number of		Grant		Contractual		Intrinsic
	Shares		Price		Life		Value
					(in years)		(in millions)
Outstanding at September 30, 2014		482,076	$	31.28
Granted		230,842	$	27.97
Lapse of restrictions/conversions		(67,953)	$	19.88
Canceled		(79,859)	$	26.74
Outstanding at June 30, 2015		565,106	$	32.52		2.6	$	17.0
Vested or Expected to Vest at June 30, 2015		339,735	$	32.12		3.4	$	11.3