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Refranchising Initiative Future minimum payments receivable (Details) - USD ($)
$ in Thousands
Nov. 30, 2016
Aug. 31, 2016
Receivables [Abstract]    
2017 $ 744  
2018 3,948  
2019 13,132  
2020 1,230  
2021 1,325  
Thereafter 13,111  
Minimum lease payments receivable 33,490 $ 15,108
Less unearned income (6,483) (5,134)
Net investment in direct financing lease $ 27,007 $ 9,974