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Consolidated Statement of Stockholders' Equity (Tables)
 3 Months Ended
Nov. 30, 2012
Statement of Stockholders' Equity [Abstract]  
Schedule of Stockholders Equity [Table Text Block]
A summary of the changes in stockholders’ equity for the three months ended November 30, 2012 is as follows: 
 
Common
Stock ($1 par value)
 
Additional Paid-In Capital
 
Accumulated
Other
Comprehensive
Income (Loss)
 
Retained
Earnings
 
Treasury
Stock
 
Noncontrolling
Interests
 
Total
Equity
 
(In thousands, except per share data)
Balance as of September 1, 2012
$
47,958

 
$
259,253

 
$
(5,921
)
 
$
571,205

 
$
(371,099
)
 
$
6,293

 
$
507,689

Comprehensive income (loss)

 

 
9,288

 
11,779

 

 
325

 
21,392

Cash dividends paid, $0.195 per share

 

 

 
(5,781
)
 

 

 
(5,781
)
Purchase of treasury stock

 

 

 

 
(479
)
 

 
(479
)
Issuance of treasury stock

 
28

 

 

 
115

 

 
143

Stock options exercised
16

 
273

 

 

 

 

 
289

Amortization of restricted stock

 
725

 

 

 

 

 
725

Balance as of November 30, 2012
$
47,974

 
$
260,279

 
$
3,367

 
$
577,203

 
$
(371,463
)
 
$
6,618

 
$
523,978