Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

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+ Details

Impairment Of Long-Lived Assets And Goodwill (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Feb. 29, 2012	May 31, 2012	Aug. 31, 2011
Impairment Of Long-Lived Assets And Goodwill [Line Items]
Number of Company Drive-Ins sold during the quarter	34
Goodwill		$ 76,996	$ 81,625
Company Drive-Ins [Member]
Impairment Of Long-Lived Assets And Goodwill [Line Items]
Goodwill		71,000
Franchise Operations [Member]
Impairment Of Long-Lived Assets And Goodwill [Line Items]
Goodwill		$ 6,000