Redeemable Noncontrolling Interest	12 Months Ended
Redeemable Noncontrolling Interest	Jul. 31, 2012
Noncontrolling Interest [Abstract]
Redeemable Noncontrolling Interest	Redeemable Noncontrolling Interest On April 23, 2010, the Company entered into a transfer agreement with GSSI LLC (“GSSI”), the noncontrolling interest holder in SSV, and acquired all of GSSI’s remaining 30.7% ownership interest in SSV for a negotiated price of $31.0 million in cash. The purchase of GSSI’s interest in SSV was completed on April 23, 2010, resulting in the Company holding 100% interest in SSV. As a result of this agreement, equity-noncontrolling interest and redeemable noncontrolling interest related to SSV was eliminated. The purchase price in excess of the carrying value of the noncontrolling interest of approximately $2.6 million (net of deferred taxes) was recorded as a reduction in additional paid-in capital. Additionally, GSSI held a management agreement with SSV which was terminated concurrent with the Company’s purchase of GSSI’s interest in SSV.

The entire disclosure for noncontrolling interest in consolidated subsidiaries, which could include the name of the subsidiary, the ownership percentage held by the parent, the ownership percentage held by the noncontrolling owners, the amount of the noncontrolling interest, the location of this amount on the balance sheet (when not reported separately), an explanation of the increase or decrease in the amount of the noncontrolling interest, the noncontrolling interest share of the net Income or Loss of the subsidiary, the location of this amount on the income statement (when not reported separately), the nature of the noncontrolling interest such as background information and terms, the amount of the noncontrolling interest represented by preferred stock, a description of the preferred stock, and the dividend requirements of the preferred stock.

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