Basis of Presentation	9 Months Ended
Jan. 31, 2016
Accounting Policies [Abstract]
Basis of Presentation	(2) Basis of Presentation: Interim Financial Information – The consolidated balance sheet as of January 31, 2016, the consolidated statements of income and comprehensive income for the three and nine months ended January 31, 2016 and 2015, the consolidated statement of changes in stockholders’ equity for the nine months ended January 31, 2016, and the consolidated statements of cash flows for the nine months ended January 31, 2016 and 2015 have been prepared by us and are unaudited. In our opinion, all adjustments, which include only normal recurring adjustments necessary to fairly present the financial position, results of operations, changes in stockholders’ equity, and cash flows at January 31, 2016 and for the periods presented, have been included. All significant intercompany transactions have been eliminated in consolidation. The consolidated balance sheet as of April 30, 2015 has been derived from our audited consolidated financial statements. Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States, or GAAP, have been condensed or omitted. These consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the fiscal year ended April 30, 2015. The results of operations for the nine months ended January 31, 2016 may not be indicative of the results that may be expected for the year ending April 30, 2016, or any other period. Recently Issued Accounting Standards – In May 2014, the Financial Accounting Standards Board, or FASB, issued Accounting Standards Update, or ASU 2014-09, Revenue from Contracts with Customers (Topic 606). The core principle of ASU 2014-09 is that an entity should recognize revenue to depict the transfer of promised 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. ASU 2014-09 is effective for interim reporting periods beginning October 1, 2017. In August 2015, the FASB issued ASU 2015-14 that deferred the effective date for ASU 2014-09 to annual reporting periods beginning after December 15, 2017, including interim reporting periods within that reporting period. Early adoption is permitted only as of annual reporting periods beginning after December 15, 2016, including interim reporting periods within that reporting period. We are currently evaluating the impact that ASU 2014-09 will have on our consolidated financial statements. In April 2015, the FASB issued ASU 2015-03, Interest - Imputation of Interest (Topic 835-30), which requires that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The recognition and measurement guidance for debt issuance costs are not affected by this ASU. The disclosure requirements are effective for annual periods (and interim periods within those annual periods) beginning after December 15, 2015 and require retrospective application. We elected to early adopt ASU 2015-03 in the first quarter of fiscal 2016. Accordingly, unamortized debt issuance costs of $4.1 million as of April 30, 2015, which were previously included in other assets, are included in notes payable in the accompanying consolidated balance sheet. In July 2015, the FASB issued ASU 2015-11, Inventory - Simplifying the Measurement of Inventory (Topic 330), which simplifies the subsequent measurement of inventories by replacing the lower of cost or market test with a lower of cost and net realizable value test. The guidance applies only to inventories for which cost is determined other than by the last-in first-out (LIFO) method and the retail inventory method. ASU 2015-11 is effective for periods beginning after December 15, 2016, and early adoption is permitted. The new guidance must be applied prospectively. We are currently evaluating the impact, if any, that ASU 2015-11 will have on our consolidated financial statements. In September 2015, the FASB issued ASU No. 2015-16, Business Combinations (Topic 805): Simplifying the Accounting for Measurement-Period Adjustments, which eliminates the current requirement to recognize measurement-period adjustments to provisional amounts retrospectively. Instead, ASU 2015-16 requires the acquirer to recognize measurement-period adjustments, as well as the impact on earnings of changes in depreciation, amortization, and similar items, if any, resulting from the change to the provisional amounts, in the period when the amount of each measurement-period adjustment is determined. This amendment is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015. We elected to early adopt ASU 2015-16 in the second quarter of fiscal 2016. As a result of the early adoption, goodwill was not restated for measurement period adjustments during the nine months ended January 31, 2015. In November 2015, the FASB issued ASU No. 2015-17, Income Taxes (Topic 740): Balance Sheet Classification of Deferred Taxes, which amends the existing guidance to require that deferred income tax liabilities and assets be classified as noncurrent in a classified balance sheet and eliminates the prior guidance, which required an entity to separate deferred tax liabilities and assets into a current amount and a noncurrent amount in a classified balance sheet. The amendments to this ASU are effective for financial statements for annual periods and interim periods within those annual periods beginning after December 15, 2016, and early adoption is permitted. In addition, the new guidance can be applied either prospectively to all deferred tax liabilities and assets or retrospectively to all periods presented. We are currently evaluating the impact, that ASU 2015-17 will have on our consolidated financial statements. In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842), which amends the existing guidance to require lessees to recognize lease assets and lease liabilities arising from operating leases in a classified balance sheet. The requirements of this ASU are effective for financial statements for annual periods and interim periods within those annual periods beginning after December 15, 2018, and early adoption is permitted. We are currently evaluating the impact that ASU 2016-02 will have on our consolidated financial statements.

(2) Basis of Presentation:

Interim Financial Information – The consolidated balance sheet as of January 31, 2016, the consolidated statements of income and comprehensive income for the three and nine months ended January 31, 2016 and 2015, the consolidated statement of changes in stockholders’ equity for the nine months ended January 31, 2016, and the consolidated statements of cash flows for the nine months ended January 31, 2016 and 2015 have been prepared by us and are unaudited. In our opinion, all adjustments, which include only normal recurring adjustments necessary to fairly present the financial position, results of operations, changes in stockholders’ equity, and cash flows at January 31, 2016 and for the periods presented, have been included. All significant intercompany transactions have been eliminated in consolidation. The consolidated balance sheet as of April 30, 2015 has been derived from our audited consolidated financial statements.

Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States, or GAAP, have been condensed or omitted. These consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the fiscal year ended April 30, 2015. The results of operations for the nine months ended January 31, 2016 may not be indicative of the results that may be expected for the year ending April 30, 2016, or any other period.

Recently Issued Accounting Standards – In May 2014, the Financial Accounting Standards Board, or FASB, issued Accounting Standards Update, or ASU 2014-09, Revenue from Contracts with Customers (Topic 606). The core principle of ASU 2014-09 is that an entity should recognize revenue to depict the transfer of promised 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. ASU 2014-09 is effective for interim reporting periods beginning October 1, 2017. In August 2015, the FASB issued ASU 2015-14 that deferred the effective date for ASU 2014-09 to annual reporting periods beginning after December 15, 2017, including interim reporting periods within that reporting period. Early adoption is permitted only as of annual reporting periods beginning after December 15, 2016, including interim reporting periods within that reporting period. We are currently evaluating the impact that ASU 2014-09 will have on our consolidated financial statements.

In April 2015, the FASB issued ASU 2015-03, Interest - Imputation of Interest (Topic 835-30), which requires that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The recognition and measurement guidance for debt issuance costs are not affected by this ASU. The disclosure requirements are effective for annual periods (and interim periods within those annual periods) beginning after December 15, 2015 and require retrospective application. We elected to early adopt ASU 2015-03 in the first quarter of fiscal 2016. Accordingly, unamortized debt issuance costs of $4.1 million as of April 30, 2015, which were previously included in other assets, are included in notes payable in the accompanying consolidated balance sheet.

In July 2015, the FASB issued ASU 2015-11, Inventory - Simplifying the Measurement of Inventory (Topic 330), which simplifies the subsequent measurement of inventories by replacing the lower of cost or market test with a lower of cost and net realizable value test. The guidance applies only to inventories for which cost is determined other than by the last-in first-out (LIFO) method and the retail inventory method. ASU 2015-11 is effective for periods beginning after December 15, 2016, and early adoption is permitted. The new guidance must be applied prospectively. We are currently evaluating the impact, if any, that ASU 2015-11 will have on our consolidated financial statements.

In September 2015, the FASB issued ASU No. 2015-16, Business Combinations (Topic 805): Simplifying the Accounting for Measurement-Period Adjustments, which eliminates the current requirement to recognize measurement-period adjustments to provisional amounts retrospectively. Instead, ASU 2015-16 requires the acquirer to recognize measurement-period adjustments, as well as the impact on earnings of changes in depreciation, amortization, and similar items, if any, resulting from the change to the provisional amounts, in the period when the amount of each measurement-period adjustment is determined. This amendment is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015. We elected to early adopt ASU 2015-16 in the second quarter of fiscal 2016. As a result of the early adoption, goodwill was not restated for measurement period adjustments during the nine months ended January 31, 2015.

In November 2015, the FASB issued ASU No. 2015-17, Income Taxes (Topic 740): Balance Sheet Classification of Deferred Taxes, which amends the existing guidance to require that deferred income tax liabilities and assets be classified as noncurrent in a classified balance sheet and eliminates the prior guidance, which required an entity to separate deferred tax liabilities and assets into a current amount and a noncurrent amount in a classified balance sheet. The amendments to this ASU are effective for financial statements for annual periods and interim periods within those annual periods beginning after December 15, 2016, and early adoption is permitted. In addition, the new guidance can be applied either prospectively to all deferred tax liabilities and assets or retrospectively to all periods presented. We are currently evaluating the impact, that ASU 2015-17 will have on our consolidated financial statements.

In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842), which amends the existing guidance to require lessees to recognize lease assets and lease liabilities arising from operating leases in a classified balance sheet. The requirements of this ASU are effective for financial statements for annual periods and interim periods within those annual periods beginning after December 15, 2018, and early adoption is permitted. We are currently evaluating the impact that ASU 2016-02 will have on our consolidated financial statements.