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Stock-Based Compensation (Tables)

9 Months Ended

Jun. 30, 2018

Stock-Based Compensation

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

		Three Months Ended						Nine Months Ended
		June 30,						June 30,
		2018			2017			2018			2017
		(in thousands)						(in thousands)
Compensation expense
Stock options		$	1,815		$	1,934		$	5,887		$	5,455
Restricted stock			6,111			4,834			17,585			13,792
		$	7,926		$	6,768		$	23,472		$	19,247

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

		2018		2017
Risk-free interest rate		2.2	%	2.0	%
Expected stock volatility		36.1	%	38.9	%
Dividend yield		4.7	%	3.7	%
Expected term (in years)		6.0		5.5

Summary of stock option activity

		Three Months Ended June 30, 2018
							Weighted
							Average
				Weighted			Remaining		Aggregate
				Average			Contractual		Intrinsic
		Shares		Exercise			Term		Value
		(in thousands)		Price			(in years)		(in millions)
Outstanding at April 1, 2018		3,721		$	58.15
Granted		24			68.90
Exercised		(66)			56.02
Forfeited/Expired		(59)			68.70
Outstanding at June 30, 2018		3,620		$	58.08		5.96		$	31.5
Vested and expected to vest at June 30, 2018		3,620		$	58.08		5.96		$	31.5
Exercisable at June 30, 2018		2,308		$	55.61		4.44		$	25.8

		Nine Months Ended
		June 30, 2018
				Weighted
				Average
		Shares		Exercise
		(in thousands)		Price
Outstanding at October 1, 2017		3,278		$	56.41
Granted		691			59.01
Exercised		(290)			39.20
Forfeited/Expired		(59)			68.70
Outstanding at June 30, 2018		3,620		$	58.08

Summary of restricted stock awards and changes in restricted stock outstanding

		Nine Months Ended
		June 30, 2018
				Weighted Average
		Shares		Grant Date Fair
		(in thousands)		Value per Share
Unvested at October 1, 2017		659		$	70.76
Granted		625			59.52
Vested (1)		(258)			71.16
Forfeited		(19)			68.98
Unvested on June 30, 2018		1,007		$	63.72

(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.

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Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)
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- Definition

Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
-Paragraph 2
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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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-Paragraph 2
-Subparagraph (f)(2)
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Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year.

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