Condensed Consolidated Statements Of Comprehensive Income (Parenthetical) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jan. 31, 2015
Jan. 31, 2014
Jan. 31, 2015
Jan. 31, 2014
Condensed Consolidated Statements Of Comprehensive Income [Abstract]        
Gain (loss) on hedging derivatives, deferred taxes $ (102) $ (61) $ (665) $ 39
Pension and postretirement liability adjustment, deferred taxes $ 2,550 $ 2,585 $ 3,896 $ 4,372