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Changes in Presentation (Table)
 3 Months Ended
Nov. 30, 2011
Changes in Presentation (Tables) [Abstract]  
Cash flows changes in presentation
The following table presents our cash flows as previously reported and as changed for the three months ended November 30, 2010:
($ in thousands)
As Reported
 
As Changed
Cash flows provided by (used in) operating activities:
 
 
 
Restricted cash and cash equivalents
$
—

 
$
(28,275
)
Net cash provided by operating activities
$
413,951

 
$
385,676

Cash flows provided by (used in) investing activities:
 
 
 
Restricted cash and cash equivalents
$
(28,275
)
 
$
—

Net cash used in investing activities
$
(78,915
)
 
$
(50,640
)