Stock-Based Compensation (Tables)

3 Months Ended

Dec. 31, 2014

Stock-Based Compensation

Summary of compensation cost for stock-based payment arrangements recognized in general and administrative expense

	Three Months Ended
	December 31,
	2014		2013
	(in thousands)
Compensation expense
Stock options	$	3,062	$	3,653
Restricted stock	3,920		3,357
	$	6,982	$	7,010

Summary of weighted-average assumptions utilized in determining the fair value of options granted

	2014		2013
Risk-free interest rate	1.72	%	1.58	%
Expected stock volatility	36.92	%	52.55	%
Dividend yield	3.92	%	3.14	%
Expected term (in years)	5.5		5.5

Summary of stock option activity

	Three Months Ended December 31, 2014
					Weighted-
			Weighted-		Average	Aggregate
			Average		Remaining	Intrinsic
	Shares		Exercise		Contractual Term	Value
Options	(in thousands)		Price		(in years)	(in millions)
Outstanding at October 1, 2014	2,629		$	43.46
Granted	420		68.83
Exercised	(104	)	16.09
Forfeited/Expired	(14	)	67.10
Outstanding at December 31, 2014	2,931		$	47.96	5.9	$	60.7
Vested and expected to vest at December 31, 2014	2,924		$	47.91	5.9	$	60.7
Exercisable at December 31, 2014	2,168		$	41.35	4.8	$	57.8

Summary of restricted stock awards and changes in restricted stock outstanding

	Three Months Ended
	December 31, 2014
			Weighted-
			Average
	Shares		Grant-Date
Restricted Stock Awards	(in thousands)		Fair Value
Unvested at October 1, 2014	634		$	64.03
Granted	275		68.83
Vested (1)	(214	)	54.18
Forfeited	(6	)	65.95
Unvested at December 31, 2014	689		$	66.93

(1) The number of restricted stock awards vested includes shares that we withheld on behalf of our employees to satisfy the statutory tax withholding requirements.