Adoption of Accounting Standards Updates	9 Months Ended
Apr. 30, 2012
Adoption of Accounting Standards Updates [Abstract]
Adoption of Accounting Standards Updates	(2) Adoption of Accounting Standards Updates The Financial Accounting Standards Board's ("FASB") Accounting Standards Codification ("ASC") is subject to updates by FASB, which are known as Accounting Standards Updates ("ASUs"). The following are FASB ASUs which have been issued and incorporated into the FASB ASC and adopted by us: On August 1, 2011, we adopted FASB ASU No. 2010-06, which amends the disclosure requirements of FASB ASC 820-10, "Fair Value Measurements and Disclosures – Overall." This FASB ASU requires that information about purchases, sales, issuances and settlements be presented separately, on a gross basis, in Level 3 fair value measurement reconciliations. Our adoption of this ASU did not have any impact on our condensed consolidated financial statements, as we have historically valued our money market mutual funds and U.S. Treasury securities using Level 1 inputs and do not have any other assets or liabilities in our Condensed Consolidated Balance Sheets at estimated fair value. On August 1, 2011, we adopted FASB ASU No. 2010-28, which amends the factors considered in determining if goodwill is impaired in FASB ASC 350, "Intangibles – Goodwill and Other." This ASU requires entities that have reporting units with carrying amounts that are zero or negative to assess whether it is more likely than not that the reporting unit's goodwill is impaired and, if an impairment is likely, to perform Step 2 of the goodwill impairment test for the reporting unit(s). On August 1, 2011, the date we performed our annual goodwill impairment test for fiscal 2012, none of our reporting units with goodwill had a zero or negative carrying value and, as such, our adoption of this ASU did not have any impact on our condensed consolidated financial statements. On August 1, 2011, we adopted FASB ASU No. 2010-29, which amends the presentation and disclosure requirements of FASB ASC 805, "Business Combinations." This ASU requires a public entity that presents comparative financial statements to disclose revenue and earnings of the combined entity as though the business combination(s) that occurred during the current year had occurred as of the beginning of the comparable prior annual reporting period only. This ASU also expands the supplemental proforma disclosures required. Our adoption of this ASU did not have any impact on our condensed consolidated financial statements, as we did not acquire any businesses during the nine months ended April 30, 2012. On August 1, 2011, we adopted FASB ASU No. 2010-20, which amends ASC 310, "Receivables" by requiring additional disclosures regarding troubled debt restructuring. In addition, we also adopted FASB ASU No. 2011-02, which amends the previously issued guidance on evaluation of whether or not a restructuring constitutes a troubled debt restructuring. Our adoption of these ASUs did not have any impact on our condensed consolidated financial statements given that substantially all of our receivables are classified as trade receivables. On February 1, 2012, we adopted FASB ASU No. 2011-04, which amends the fair value measurement and disclosure requirements of FASB ASC 820, "Fair Value Measurements". This ASU clarifies, among other things, the intent of the application of existing fair value requirements, including those related to highest and best use concepts, and also expands the disclosure requirements for fair value measurements categorized within Level 3 of the fair value hierarchy. Our adoption of this FASB ASU did not have any impact on our consolidated financial statements. On February 1, 2012, we adopted FASB ASU No. 2011-05, which eliminates the option to present components of other comprehensive income as part of the statement of changes in stockholders' equity. In addition, this ASU provides the ability to present the total of comprehensive income, the components of net income and the components of other comprehensive income either in a single continuous statement of comprehensive income, or in two separate but consecutive statements. In both choices, the entity is required to present each component of net income along with total net income, each component of other comprehensive income along with a total for other comprehensive income, and a total amount for comprehensive income. In December 2011, FASB issued ASU 2011-12, which defers certain provisions in the new guidance related to the presentation of reclassification adjustments. Our adoption of this FASB ASU did not have any impact on our consolidated financial statements, including additional disclosures, because we did not have any component of other comprehensive income in our consolidated financial statements other than net income for the three and nine months ended April 30, 2012 and 2011, respectively. During the three months ended April 30, 2012, we adopted FASB ASU No. 2011-08, which provides, subject to certain conditions, an entity the option to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount as a basis for determining whether it is necessary to perform the two-step goodwill impairment test described in ASC 350, "Intangibles – Goodwill and Other," which may reduce complexity and costs of testing goodwill for impairment. Our adoption of this FASB ASU did not have any impact on our consolidated financial statements.

(2) Adoption of Accounting Standards Updates

The Financial Accounting Standards Board's ("FASB") Accounting Standards Codification ("ASC") is subject to updates by FASB, which are known as Accounting Standards Updates ("ASUs"). The following are FASB ASUs which have been issued and incorporated into the FASB ASC and adopted by us:

On August 1, 2011, we adopted FASB ASU No. 2010-06, which amends the disclosure requirements of FASB ASC 820-10, "Fair Value Measurements and Disclosures – Overall." This FASB ASU requires that information about purchases, sales, issuances and settlements be presented separately, on a gross basis, in Level 3 fair value measurement reconciliations. Our adoption of this ASU did not have any impact on our condensed consolidated financial statements, as we have historically valued our money market mutual funds and U.S. Treasury securities using Level 1 inputs and do not have any other assets or liabilities in our Condensed Consolidated Balance Sheets at estimated fair value.

On August 1, 2011, we adopted FASB ASU No. 2010-28, which amends the factors considered in determining if goodwill is impaired in FASB ASC 350, "Intangibles – Goodwill and Other." This ASU requires entities that have reporting units with carrying amounts that are zero or negative to assess whether it is more likely than not that the reporting unit's goodwill is impaired and, if an impairment is likely, to perform Step 2 of the goodwill impairment test for the reporting unit(s). On August 1, 2011, the date we performed our annual goodwill impairment test for fiscal 2012, none of our reporting units with goodwill had a zero or negative carrying value and, as such, our adoption of this ASU did not have any impact on our condensed consolidated financial statements.

On August 1, 2011, we adopted FASB ASU No. 2010-29, which amends the presentation and disclosure requirements of FASB ASC 805, "Business Combinations." This ASU requires a public entity that presents comparative financial statements to disclose revenue and earnings of the combined entity as though the business combination(s) that occurred during the current year had occurred as of the beginning of the comparable prior annual reporting period only. This ASU also expands the supplemental proforma disclosures required. Our adoption of this ASU did not have any impact on our condensed consolidated financial statements, as we did not acquire any businesses during the nine months ended April 30, 2012.

On August 1, 2011, we adopted FASB ASU No. 2010-20, which amends ASC 310, "Receivables" by requiring additional disclosures regarding troubled debt restructuring. In addition, we also adopted FASB ASU No. 2011-02, which amends the previously issued guidance on evaluation of whether or not a restructuring constitutes a troubled debt restructuring. Our adoption of these ASUs did not have any impact on our condensed consolidated financial statements given that substantially all of our receivables are classified as trade receivables.

On February 1, 2012, we adopted FASB ASU No. 2011-04, which amends the fair value measurement and disclosure requirements of FASB ASC 820, "Fair Value Measurements". This ASU clarifies, among other things, the intent of the application of existing fair value requirements, including those related to highest and best use concepts, and also expands the disclosure requirements for fair value measurements categorized within Level 3 of the fair value hierarchy. Our adoption of this FASB ASU did not have any impact on our consolidated financial statements.

On February 1, 2012, we adopted FASB ASU No. 2011-05, which eliminates the option to present components of other comprehensive income as part of the statement of changes in stockholders' equity. In addition, this ASU provides the ability to present the total of comprehensive income, the components of net income and the components of other comprehensive income either in a single continuous statement of comprehensive income, or in two separate but consecutive statements. In both choices, the entity is required to present each component of net income along with total net income, each component of other comprehensive income along with a total for other comprehensive income, and a total amount for comprehensive income. In December 2011, FASB issued ASU 2011-12, which defers certain provisions in the new guidance related to the presentation of reclassification adjustments. Our adoption of this FASB ASU did not have any impact on our consolidated financial statements, including additional disclosures, because we did not have any component of other comprehensive income in our consolidated financial statements other than net income for the three and nine months ended April 30, 2012 and 2011, respectively.

During the three months ended April 30, 2012, we adopted FASB ASU No. 2011-08, which provides, subject to certain conditions, an entity the option to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount as a basis for determining whether it is necessary to perform the two-step goodwill impairment test described in ASC 350, "Intangibles – Goodwill and Other," which may reduce complexity and costs of testing goodwill for impairment. Our adoption of this FASB ASU did not have any impact on our consolidated financial statements.