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Incentive Stock Plans (Tables)
 12 Months Ended
Aug. 31, 2013
INCENTIVE STOCK PLANS [Abstract]  
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]
The following table summarizes the activity of time-based and performance-based restricted stock awards: 
 
Awards Outstanding
 
Weighted-Average
Fair Market Value
(per share)
 
Time-
Based
 
Performance-
Based
 
Time-
Based
 
Performance-
Based
Outstanding at August 31, 2012
118,395

 
1,010,743

 
$
22.15

 
$
16.90

Granted
57,990

 
348,030

 
$
29.18

 
$
29.08

Vested
(35,621
)
 
(7,210
)
 
$
21.90

 
$
14.03

Forfeited
(7,405
)
 
(269,978
)
 
$
23.43

 
$
18.61

Outstanding at August 31, 2013
133,359

 
1,081,585

 
$
25.20

 
$
20.41
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
The fair values of the performance-based awards granted during fiscal 2013, 2012 and 2011 were estimated using a Monte Carlo valuation model using the following assumptions: 
 
2013(a)
 
2012(b)
 
2011(b)
Dividend yield
—
%
 
3.00
%
 
2.91
%
Expected volatility
35.00
%
 
43.00
%
 
47.00
%
Risk-free interest rate
0.77
%
 
0.42
%
 
1.05
%
Correlation
56.00
%
 
61.00
%
 
60.00
%

(a) Assumptions as of August 31, 2013 related to liability classified awards
(b) Weighted average grant date assumptions related to equity classified awards
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
A summary of stock option activity is as follows:
 
Outstanding Shares
Under Option
 
Weighted-Average
Exercise Price
Outstanding at August 31, 2012
86,955

 
$
18.61

Granted
—

 
$
—

Exercised
(64,453
)
 
$
18.71

Forfeited and expired
(3,500
)
 
$
13.99

Outstanding at August 31, 2013
19,002

 
$
19.13

Exercisable at August 31, 2013
19,002

 
$
19.13
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]
The following table summarizes the impact to the Company’s consolidated statements of operations from long-term incentive compensation plans, which is primarily included in selling, general and administrative expenses in the accompanying consolidated statements of operations: 
 
Year Ended August 31,
 
2013
 
2012
 
2011
 
(In thousands)
Time-based awards and performance-based awards
$
2,454

 
$
3,813

 
$
3,832

Board of Directors unrestricted awards
850

 
845

 
791

Cash-settled restricted stock units
—

 
—

 
817

Total long-term incentive compensation
$
3,304

 
$
4,658

 
$
5,440