Stock-Based Compensation (Tables)

6 Months Ended

Jan. 31, 2014

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]

The following table summarizes the RSU and restricted share activity under the Company's share-based compensation plans for the six months ended January 31, 2014:

Service-Based RSUs and Restricted Shares	Shares		Weighted Average Grant Date Fair Value
Outstanding at July 31, 2013	5,000		$	32.99
New grants	108,055		30.93
Vested	—		—
Forfeited	(1,710)		31.07
Outstanding at January 31, 2014	111,345		$	31.02
Performance-Based RSUs and Restricted Shares	Shares		Weighted Average Grant Date Fair Value
Outstanding at July 31, 2013	231,667		$	31.43
New grants	—		—
Vested	(35,001	)	28.35
Forfeited	(116,666	)	31.61
Outstanding at January 31, 2014	80,000		$	32.50

Stock Option Assumptions

The weighted-average assumptions used in the Black-Scholes valuation model are reflected in the following table:

	Six months ended January 31,
Black-Scholes Option Valuation Assumptions	2014			2013
Expected term (in years)	5.97			5.95
Expected volatility	37.32		%	38.68		%
Expected dividend yield	2.35		%	2.20		%
Risk-free interest rate	1.80		%	0.90		%
Weighted-average market value of underlying stock at grant date	$	30.98		$	30.36
Weighted-average exercise price	$	30.98		$	30.36
Weighted-average fair value of options granted during the period	$	9.17		$	9.01

Summary of Stock Option Activity under Company's Share-Based Compensation Plans

A summary of stock option activity under the Company’s share-based compensation plans for the six months ended January 31, 2014 is presented below:

Options	Shares	Weighted Average Exercise Price		Weighted Average Remaining Contractual Term	Aggregate Intrinsic Value
Outstanding at July 31, 2013	5,106,585	$	30.68
New grants	375,272	30.98
Exercised	(407,507)	26.99
Forfeited or expired	(545,070)	32.30
Outstanding at January 31, 2014	4,529,280	$	30.84	5.8	$	2,059
Exercisable at January 31, 2014	3,274,218	$	31.14	4.7	$	1,957