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Operating Segments Level 2 (Policies)	6 Months Ended
Operating Segments Level 2 (Policies)	Jan. 31, 2017
Segment Reporting [Abstract]
Operating Segments	We have two operating segments: (1) Retail and Wholesale Products Group and (2) Business to Business Products Group. These operating segments are managed separately and each segment's major customers have different characteristics. The Retail and Wholesale Products Group customers include: mass merchandisers; wholesale clubs; drugstore chains; pet specialty retail outlets; dollar stores; retail grocery stores; distributors of industrial cleanup and automotive products; environmental service companies; and sports field product users. The Business to Business Products Group customers include: processors and refiners of edible oils, petroleum-based oils and biodiesel fuel; manufacturers of animal feed and agricultural chemicals; distributors of animal health and nutrition products; and marketers of consumer products. Our operating segments are also our reportable segments. Net sales and operating income for each segment are provided below. Revenues by product line are not provided because it would be impracticable to do so. The accounting policies of the segments are the same as those described in Note 1 of the Consolidated Financial Statements included in our Annual Report on Form 10-K for the fiscal year ended July 31, 2016.