New Accounting Pronouncements	3 Months Ended
Jul. 31, 2018
Accounting Changes and Error Corrections [Abstract]
New Accounting Pronouncements	New Accounting Pronouncements In May 2014, the Financial Accounting Standards Board (the "FASB") issued Accounting Standards Update ("ASU") No. 2014-09, “Revenue from Contracts with Customers: Topic 606.” ASU 2014-09 supersedes the revenue recognition requirements in “Accounting Standard Codification 605 - Revenue Recognition” and most industry-specific guidance. The standard requires that entities recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which a company expects to be entitled in exchange for those goods or services. ASU 2014-09 permits the use of either the retrospective or cumulative effect transition method. In August 2015, the FASB issued ASU No. 2015-14, "Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date." ASU 2015-14 defers the effective date of ASU 2014-09 by one year to annual reporting periods beginning after December 15, 2017, including interim reporting periods within that period. The Company adopted ASU 2014-09 as of May 1, 2018 and for periods thereafter using the modified retrospective approach, which was applied to all contracts not completed as of May 1, 2018. The cumulative effect of adopting the new revenue standard was not material. The comparative financial information has not been restated and continues to be reported under the accounting standards in effect for those periods. The adoption of this standard did not have a material impact on the quarter ended July 31, 2018 and the Company does not expect it to have a material impact on revenue or net income on an ongoing basis. See Note O, “Revenue Recognition,” for further information. In February 2016, the FASB issued ASU 2016-02, which requires lessees to recognize almost all leases on their balance sheet as a “right-of-use” asset and lease liability but recognize related expenses in a manner similar to current accounting. The guidance also eliminates current real estate-specific provisions for all entities. In January 2018, the FASB issued ASU 2018-01, which clarifies the application of the new leases guidance to land easements. In July 2018, the FASB issued ASU 2018-10 and ASU 2018-11, which clarify certain guidance included in ASU 2016-02 and introduces a new optional transition method. The standard is effective for annual periods beginning after December 15, 2018. The Company is evaluating its lease portfolio to assess the impact on its financial statements as well as on its accounting processes, internal controls and disclosures. The Company has not yet determined the impact of adopting the standard. In March 2017, the FASB issued ASU No. 2017-07, "Compensation—Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost." ASU 2017-07 requires an employer to disaggregate the service cost component from the other components of net benefit (income) cost. The other components of net benefit (income) cost are required to be presented in the income statement separately from the service cost component and outside of operating income. The amendments also allow only the service cost component of net benefit (income) cost to be eligible for capitalization. The amendments in this ASU are effective for fiscal years beginning after December 15, 2017. The amendments in this ASU should be applied (1) retrospectively for the presentation of the service cost component and the other components of net periodic pension (income) cost and net periodic postretirement benefit (income) cost on the income statement, and (2) prospectively, on and after the effective date, for the capitalization of the service cost component of net periodic pension (income) cost and net periodic postretirement benefit (income) cost in assets. The Company adopted ASU 2017-07 as of May 1, 2018 and for periods thereafter using the retrospective approach. The adoption of this standard resulted in immaterial reclassifications from operating income in prior periods. The Company does not expect the adoption of this standard to have a material effect on our financial statements on an ongoing basis.

New Accounting Pronouncements

In May 2014, the Financial Accounting Standards Board (the "FASB") issued Accounting Standards Update ("ASU") No. 2014-09, “Revenue from Contracts with Customers: Topic 606.” ASU 2014-09 supersedes the revenue recognition requirements in “Accounting Standard Codification 605 - Revenue Recognition” and most industry-specific guidance. The standard requires that entities recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which a company expects to be entitled in exchange for those goods or services. ASU 2014-09 permits the use of either the retrospective or cumulative effect transition method. In August 2015, the FASB issued ASU No. 2015-14, "Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date." ASU 2015-14 defers the effective date of ASU 2014-09 by one year to annual reporting periods beginning after December 15, 2017, including interim reporting periods within that period. The Company adopted ASU 2014-09 as of May 1, 2018 and for periods thereafter using the modified retrospective approach, which was applied to all contracts not completed as of May 1, 2018. The cumulative effect of adopting the new revenue standard was not material. The comparative financial information has not been restated and continues to be reported under the accounting standards in effect for those periods. The adoption of this standard did not have a material impact on the quarter ended July 31, 2018 and the Company does not expect it to have a material impact on revenue or net income on an ongoing basis. See Note O, “Revenue Recognition,” for further information.

In February 2016, the FASB issued ASU 2016-02, which requires lessees to recognize almost all leases on their balance sheet as a “right-of-use” asset and lease liability but recognize related expenses in a manner similar to current accounting. The guidance also eliminates current real estate-specific provisions for all entities. In January 2018, the FASB issued ASU 2018-01, which clarifies the application of the new leases guidance to land easements. In July 2018, the FASB issued ASU 2018-10 and ASU 2018-11, which clarify certain guidance included in ASU 2016-02 and introduces a new optional transition method. The standard is effective for annual periods beginning after December 15, 2018. The Company is evaluating its lease portfolio to assess the impact on its financial statements as well as on its accounting processes, internal controls and disclosures. The Company has not yet determined the impact of adopting the standard.

In March 2017, the FASB issued ASU No. 2017-07, "Compensation—Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost." ASU 2017-07 requires an employer to disaggregate the service cost component from the other components of net benefit (income) cost. The other components of net benefit (income) cost are required to be presented in the income statement separately from the service cost component and outside of operating income. The amendments also allow only the service cost component of net benefit (income) cost to be eligible for capitalization. The amendments in this ASU are effective for fiscal years beginning after December 15, 2017. The amendments in this ASU should be applied (1) retrospectively for the presentation of the service cost component and the other components of net periodic pension (income) cost and net periodic postretirement benefit (income) cost on the income statement, and (2) prospectively, on and after the effective date, for the capitalization of the service cost component of net periodic pension (income) cost and net periodic postretirement benefit (income) cost in assets. The Company adopted ASU 2017-07 as of May 1, 2018 and for periods thereafter using the retrospective approach. The adoption of this standard resulted in immaterial reclassifications from operating income in prior periods. The Company does not expect the adoption of this standard to have a material effect on our financial statements on an ongoing basis.