Stockholder's Investments (Tables)

12 Months Ended

Jul. 31, 2015

Equity [Abstract]

Schedule of Capital Stock

Information as to the Company’s capital stock at July 31, 2015 and 2014 is as follows:

	July 31, 2015				July 31, 2014
	Shares Authorized	Shares Issued	(thousands) Amount		Shares Authorized	Shares Issued	(thousands) Amount
Preferred Stock, $.01 par value	5,000,000				5,000,000
Cumulative Preferred Stock: 6% Cumulative	5,000				5,000
1972 Series	10,000				10,000
1979 Series	30,000				30,000
Common Stock, $.01 par value: Class A Nonvoting	100,000,000	51,261,487	$	513	100,000,000	51,261,487	$	513
Class B Voting	10,000,000	3,538,628	35		10,000,000	3,538,628	35
			$	548			$	548

Schedule of Other Activity in Stockholders' Investment

The following is a summary of other activity in stockholders’ investment for the fiscal years ended July 31, 2015, 2014, and 2013:

	Unearned Restricted Stock			Deferred Compensation			Shares Held in Rabbi Trust, at cost			Total
Balances at July 31, 2012	$	(3,763	)	$	11,610		$	(11,151	)	$	(3,304	)
Shares at July 31, 2012				517,105			517,105
Sale of shares at cost	—			(1,461		)	1,419			(42		)
Purchase of shares at cost	—			891			(891		)	—
Forfeitures of restricted stock	838			—			—			838
Amortization of restricted stock	1,788			—			—			1,788
Balances at July 31, 2013	(1,137		)	11,040			(10,623		)	(720		)
Shares at July 31, 2013				$	469,797		$	469,797
Sale of shares at cost	$	—		(1,637		)	1,496			$	(141	)
Purchase of shares at cost	—			821			(821		)	—
Effect of plan amendment	—			(2,435		)	—			(2,435		)
Amortization of restricted stock	1,137			—			—			1,137
Balances at July 31, 2014	$	—		$	7,789		$	(9,948	)	$	(2,159	)
Shares at July 31, 2014				338,711			423,415
Sale of shares at cost	—			(2,325		)	2,235			(90		)
Purchase of shares at cost	—			220			(1,035		)	(815		)
Balances at July 31, 2015	$	—		$	5,684		$	(8,748	)	$	(3,064	)
Shares at July 31, 2015				252,261			362,025

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

Black-Scholes Option Valuation Assumptions	2015			2014			2013
Expected term (in years)	6.05			5.97			5.93
Expected volatility	34.01		%	37.32		%	38.67		%
Expected dividend yield	2.48		%	2.35		%	2.21		%
Risk-free interest rate	1.90		%	1.80		%	0.91		%
Weighted-average market value of underlying stock at grant date	$	22.76		$	30.98		$	30.58
Weighted-average exercise price	$	22.76		$	30.98		$	30.58
Weighted-average fair value of options granted during the period	$	6.12		$	9.17		$	9.05

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

for the fiscal year ended July 31, 2015:

	Option Price				Options Outstanding		Weighted Average Exercise Price
Balance as of July 31, 2014	$	17.23	—	$40.37	4,204,260		$	30.82
Options granted	22.66		—	27.28	628,340		22.76
Options exercised	17.23		—	27.00	(68,533	)	23.73
Options cancelled	22.63		—	40.37	(1,263,116	)	30.48
Balance as of July 31, 2015	$	20.95	—	$38.31	3,500,951		$	29.64

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range

The following table summarizes information about stock options outstanding at July 31, 2015:

	Options Outstanding				Options Outstanding and Exercisable
Range of Exercise Prices	Number of  Shares Outstanding at July 31, 2015	Weighted  Average Remaining Contractual Life (in years)	Weighted Average Exercise Price		Shares Exercisable at July 31, 2015	Weighted  Average Remaining Contractual Life (in years)	Weighted Average Exercise Price
$20.95 - $26.99	711,527	7.7	$	22.27	180,667	3.4	$	20.95
$27.00 - $32.99	1,976,924	5.8	29.12		1,667,452	5.5	28.86
$33.00 - $38.31	812,500	2.0	37.34		794,836	1.8	37.39
Total	3,500,951	5.3	29.64		2,642,955	4.3	$	30.88

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity

The following tables summarize the RSU and restricted share activity for the fiscal year ended July 31, 2015:

Service-Based Restricted Shares and RSUs	Shares		Weighted Average Grant Date  Fair Value
Balance as of July 31, 2014	104,857		$	31.02
New grants	661,412		24.28
Vested	(34,247	)	30.79
Forfeited	(54,568	)	27.64
Balance as of July 31, 2015	677,454		$	24.72

The service-based restricted shares and RSUs awarded during the fiscal years ended July 31, 2014 and 2013 had a weighted-average grant-date fair value of $30.93 and $32.99, respectively.

Performance-Based Restricted Shares and RSUs	Shares		Weighted Average Grant Date  Fair Value
Balance as of July 31, 2014	80,000		$	32.50
New grants	—		—
Vested	—		—
Forfeited	(80,000	)	32.50
Balance as of July 31, 2015	—		$	—

The performance-based restricted shares and RSUs awarded during the fiscal year ended July 31, 2013 had a weighted-average grant-date fair value of $30.21. No performance-based restricted shares were granted during the fiscal year ended July 31, 2014.