Recent Accounting Pronouncements	3 Months Ended
Oct. 31, 2017
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Recent Accounting Pronouncements	Recent Accounting Pronouncements Newly Adopted Accounting Standards In September 2015, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2015-16, “Simplifying the Accounting for Measurement-Period Adjustments (Topic 805)” (“ASU 2015-16”). The new guidance requires an acquirer in a business combination to recognize a measurement-period adjustment during the period in which it determines the amount, and eliminates the requirement for an acquirer to account for measurement-period adjustments retrospectively. The acquirer must also disclose the amounts and reasons for adjustments to the provisional amounts. ASU 2015-16 is effective for fiscal years beginning after December 15, 2016 (our fiscal year 2018), including interim periods within that reporting period. Accordingly, we adopted ASU 2015-06 on August 1, 2017. The adoption of ASU 2015-06 did not have a material impact upon on our financial position and results of operations. In July 2015, the FASB issued ASU 2015-11, “Inventory (Topic 330) Simplifying the Measurement of Inventory,” (“ASU 2015-11”). The new guidance requires companies using the first-in, first-out and average costs methods to measure inventory using the lower of cost and net realizable value, where net realizable value is the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal and transportation. ASU 2015-11 is effective for fiscal years beginning after December 15, 2016 (our fiscal year 2018), including interim periods within that reporting period. Accordingly, we adopted ASU 2015-11 on August 1, 2017. The adoption of ASU 2015-11 did not have a material impact upon on our financial position and results of operations. Recently Issued Accounting Standards In August 2017, the FASB issued ASU 2017-12, "Targeted Improvements to Accounting for Hedging Activities" ("ASU 2017-12") to improve the financial reporting of hedging relationships to better portray the economic results of an entity's risk management activities in its financial statements. ASU 2017-12 is effective for fiscal years beginning after December 15, 2018 (our fiscal year 2020), including interim periods within that reporting period. We are currently in the process of evaluating the impact of ASU 2017-12 on our financial position and result of operations. In May 2017, the FASB issued ASU 2017-09, "Scope of Modification Accounting" ("ASU 2017-09") to provide guidance about which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting in Topic 718. ASU 2017-09 is effective for fiscal years beginning after December 15, 2017 (our fiscal year 2019), including interim periods within that reporting period. We are currently in the process of evaluating the impact of ASU 2017-09 on our financial position and result of operations. In January 2017, the FASB issued ASU 2017-04, “Intangibles - Goodwill and Other” (“ASU 2017-04”) to simplify the test for goodwill impairment. The revised guidance eliminates the existing Step 2 of the goodwill impairment test which required an entity to compute the implied fair value of its goodwill at the testing date in order to measure the amount of the impairment charge when the fair value of the reporting unit failed Step 1 of the goodwill impairment test. Under the revised guidance, an entity would recognize an impairment charge for the amount by which the carrying amount of the reporting unit exceeds its fair value; however, the loss recognized would not exceed the total amount of goodwill allocated to the reporting unit. The guidance will be applied on a prospective basis on or after the effective date. ASU 2017-04 is effective for fiscal years beginning after December 15, 2019 (our fiscal year 2021) and early adoption is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. The adoption of ASU 2017-04 is not expected to have a significant impact on our financial position and result of operations. In January 2017, the FASB issued ASU 2017-01, “Business Combinations (Topic 805)” (“ASU 2017-01”) to clarify the definition of a business. The revised guidance creates a more robust framework to use in determining whether a set of assets and activities is a business. The guidance will be applied on a prospective basis on or after the effective date. ASU 2017-01 is effective for fiscal years beginning after December 15, 2017 (our fiscal year 2019), including interim periods within that reporting period. We are currently in the process of evaluating the impact of ASU 2017-01 on our financial position and result of operations. In February 2016, FASB issued ASU 2016-02, “Leases (Topic 842)” (“ASU 2016-02”). The new guidance requires the recording of assets and liabilities arising from leases on the balance sheet accompanied by enhanced qualitative and quantitative disclosures in the notes to the financial statements. The new guidance is expected to provide transparency of information and comparability among organizations. ASU 2016-02 is effective for fiscal years beginning after December 15, 2018 (our fiscal year 2020), including interim periods within that reporting period. Early adoption is permitted as of the beginning of an interim or annual period. We are currently in the process of evaluating the impact of ASU 2016-02 on our financial position and results of operations. In May 2014, the FASB issued ASU 2014-09, “Revenue from Contracts with Customers (Topic 606)” (“ASU 2014-09”), which will supersede the revenue recognition requirements in Accounting Standards Codification 605, “Revenue Recognition” ("ASC 605"). ASU 2014-09 is based on the principle that revenue is recognized to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. It also requires additional disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, significant judgments and changes in judgments, and assets recognized from costs incurred to obtain or fulfill a contract. In August 2015, the FASB issued ASU 2015-14, “Revenue from Contracts with Customers (Topic 606),” which defers the effective date of ASU 2014-09 by one year to fiscal years beginning after December 15, 2017 (our fiscal year 2019), including interim periods within that reporting period. In May 2016, the FASB issued ASU 2016-12, “Revenue from Contracts with Customers (Topic 606),” (“ASU 2016-12”), which provided narrow scope improvements and practical expedients relating to ASU 2014-09. In preparation for our adoption of ASU 2014-09 and ASU 2016-12 on August 1, 2018, we are obtaining representative samples of contracts and other forms of agreements with our customers in the United States and international locations and plan to evaluate the provisions contained therein in light of the five-step model specified by the new guidance. We are also evaluating the impact of the new standard on certain common practices currently employed by us and by other health care manufacturers and service providers, such as multiple-element arrangements, deferred revenues, warranties, rebates and other pricing allowances. We anticipate adopting the standard using the modified retrospective method. There may be differences in timing of revenue recognition under the new standard compared to recognition under ASC 605.

Recent Accounting Pronouncements

Newly Adopted Accounting Standards

In September 2015, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2015-16, “Simplifying the Accounting for Measurement-Period Adjustments (Topic 805)” (“ASU 2015-16”). The new guidance requires an acquirer in a business combination to recognize a measurement-period adjustment during the period in which it determines the amount, and eliminates the requirement for an acquirer to account for measurement-period adjustments retrospectively. The acquirer must also disclose the amounts and reasons for adjustments to the provisional amounts. ASU 2015-16 is effective for fiscal years beginning after December 15, 2016 (our fiscal year 2018), including interim periods within that reporting period. Accordingly, we adopted ASU 2015-06 on August 1, 2017. The adoption of ASU 2015-06 did not have a material impact upon on our financial position and results of operations.

In July 2015, the FASB issued ASU 2015-11, “Inventory (Topic 330) Simplifying the Measurement of Inventory,” (“ASU 2015-11”). The new guidance requires companies using the first-in, first-out and average costs methods to measure inventory using the lower of cost and net realizable value, where net realizable value is the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal and transportation. ASU 2015-11 is effective for fiscal years beginning after December 15, 2016 (our fiscal year 2018), including interim periods within that reporting period. Accordingly, we adopted ASU 2015-11 on August 1, 2017. The adoption of ASU 2015-11 did not have a material impact upon on our financial position and results of operations.

Recently Issued Accounting Standards

In August 2017, the FASB issued ASU 2017-12, "Targeted Improvements to Accounting for Hedging Activities" ("ASU 2017-12") to improve the financial reporting of hedging relationships to better portray the economic results of an entity's risk management activities in its financial statements. ASU 2017-12 is effective for fiscal years beginning after December 15, 2018 (our fiscal year 2020), including interim periods within that reporting period. We are currently in the process of evaluating the impact of ASU 2017-12 on our financial position and result of operations.

In May 2017, the FASB issued ASU 2017-09, "Scope of Modification Accounting" ("ASU 2017-09") to provide guidance about which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting in Topic 718. ASU 2017-09 is effective for fiscal years beginning after December 15, 2017 (our fiscal year 2019), including interim periods within that reporting period. We are currently in the process of evaluating the impact of ASU 2017-09 on our financial position and result of operations.

In January 2017, the FASB issued ASU 2017-04, “Intangibles - Goodwill and Other” (“ASU 2017-04”) to simplify the test for goodwill impairment. The revised guidance eliminates the existing Step 2 of the goodwill impairment test which required an entity to compute the implied fair value of its goodwill at the testing date in order to measure the amount of the impairment charge when the fair value of the reporting unit failed Step 1 of the goodwill impairment test. Under the revised guidance, an entity would recognize an impairment charge for the amount by which the carrying amount of the reporting unit exceeds its fair value; however, the loss recognized would not exceed the total amount of goodwill allocated to the reporting unit. The guidance will be applied on a prospective basis on or after the effective date. ASU 2017-04 is effective for fiscal years beginning after December 15, 2019 (our fiscal year 2021) and early adoption is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. The adoption of ASU 2017-04 is not expected to have a significant impact on our financial position and result of operations.

In January 2017, the FASB issued ASU 2017-01, “Business Combinations (Topic 805)” (“ASU 2017-01”) to clarify the definition of a business. The revised guidance creates a more robust framework to use in determining whether a set of assets and activities is a business. The guidance will be applied on a prospective basis on or after the effective date. ASU 2017-01 is effective for fiscal years beginning after December 15, 2017 (our fiscal year 2019), including interim periods within that reporting period. We are currently in the process of evaluating the impact of ASU 2017-01 on our financial position and result of operations.

In February 2016, FASB issued ASU 2016-02, “Leases (Topic 842)” (“ASU 2016-02”). The new guidance requires the recording of assets and liabilities arising from leases on the balance sheet accompanied by enhanced qualitative and quantitative disclosures in the notes to the financial statements. The new guidance is expected to provide transparency of information and comparability among organizations. ASU 2016-02 is effective for fiscal years beginning after December 15, 2018 (our fiscal year 2020), including interim periods within that reporting period. Early adoption is permitted as of the beginning of an interim or annual period. We are currently in the process of evaluating the impact of ASU 2016-02 on our financial position and results of operations.

In May 2014, the FASB issued ASU 2014-09, “Revenue from Contracts with Customers (Topic 606)” (“ASU 2014-09”), which will supersede the revenue recognition requirements in Accounting Standards Codification 605, “Revenue Recognition” ("ASC 605"). ASU 2014-09 is based on the principle that revenue is recognized to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. It also requires additional disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, significant judgments and changes in judgments, and assets recognized from costs incurred to obtain or fulfill a contract. In August 2015, the FASB issued ASU 2015-14, “Revenue from Contracts with Customers (Topic 606),” which defers the effective date of ASU 2014-09 by one year to fiscal years beginning after December 15, 2017 (our fiscal year 2019), including interim periods within that reporting period. In May 2016, the FASB issued ASU 2016-12, “Revenue from Contracts with Customers (Topic 606),” (“ASU 2016-12”), which provided narrow scope improvements and practical expedients relating to ASU 2014-09. In preparation for our adoption of ASU 2014-09 and ASU 2016-12 on August 1, 2018, we are obtaining representative samples of contracts and other forms of agreements with our customers in the United States and international locations and plan to evaluate the provisions contained therein in light of the five-step model specified by the new guidance. We are also evaluating the impact of the new standard on certain common practices currently employed by us and by other health care manufacturers and service providers, such as multiple-element arrangements, deferred revenues, warranties, rebates and other pricing allowances. We anticipate adopting the standard using the modified retrospective method. There may be differences in timing of revenue recognition under the new standard compared to recognition under ASC 605.