XML 16 R48.htm IDEA: XBRL DOCUMENT v2.4.0.8
Business Segments - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Jul. 31, 2014
Segment
Jul. 31, 2013
Jul. 31, 2012
Segment Reporting Information [Line Items]      
Number of reportable segments 2    
Net sales $ 3,525,456 $ 3,241,795 $ 2,639,798
Continuing Operations | Export
     
Segment Reporting Information [Line Items]      
Net sales $ 521,818 $ 537,374 $ 456,073