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Defined Contribution Plans	12 Months Ended
Defined Contribution Plans	Jul. 31, 2012
Defined Contribution Plans Abstract
Defined Contribution Plans	Contributions to the Parent Company’s defined contribution plan and supplemental retirement plan are discretionary and determined annually by the Board of Directors. Walsh’s defined contribution plan provides for mandatory employer contributions to match 100% of employee contributions up to 4% of each participant’s compensation. The total expense under the plans for fiscal years 2012, 2011, and 2010 was approximately $1.8 million, $2.2 million, and $2.0 million, respectively.