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BUSINESS SEGMENTS (Reconciliations of Earnings from Continuing Operations to Adjusted Operating Profit) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
May 31, 2018
May 31, 2017
May 31, 2018
May 31, 2017
Segment Reporting [Abstract]        
Earnings from continuing operations $ 42,325 $ 31,567 $ 83,977 $ 60,245
Income taxes 13,312 11,006 23,465 21,231
Interest expense 11,511 12,448 25,303 38,212
Discounts on sales of accounts receivable 261 230 715 639
Adjusted operating profit from continuing operations $ 67,409 $ 55,251 $ 133,460 $ 120,327