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Goodwill And Other Intangibles (Tables)
 12 Months Ended
Aug. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]  
Changes In The Carrying Amount Of Goodwill
The changes in the carrying amount of goodwill were as follows:

 
August 31,

 
2017
 
2016
Balance at beginning of year
 
$
76,734

 
$
77,076

Goodwill disposed of related to the sale of Company Drive-Ins
 
(978
)
 
(342
)
Balance at end of year
 
$
75,756

 
$
76,734