Management Common Stock Loan Program (Details) (USD $)	12 Months Ended		1 Months Ended	12 Months Ended		3 Months Ended	1 Months Ended
	Aug. 31, 2014	Aug. 31, 2001	May 31, 2004 Management Common Stock Loan Program [Member]	Aug. 31, 2001 Management Common Stock Loan Program [Member]	Jun. 30, 2006 Management Common Stock Loan Program [Member]	Aug. 31, 2012 Management Common Stock Loan Program [Member] Loan Participants Declaring Bankruptcy [Member]	May 31, 2004 Management Common Stock Loan Program [Member] May 2004 Modification [Member]
Management Common Stock Loan Program [Line Items]
Shares of common stock purchased by management stock loan participants				3,825,000
Cost of loan to purchase stock			$ 7,600,000	$ 33,600,000			$ 0
Interest rate		9.40%
Number of shares held, elected to accept extension and place into escrow account					3,500,000
Percent of shares held, elected to accept extension and place into escrow account					94.00%
Shares acquired	73,320					31,063