Significant Accounting Policies	9 Months Ended
Jan. 27, 2019
Accounting Policies [Abstract]
Significant Accounting Policies	2. Significant Accounting Policies As of January 27, 2019, there were no changes in the nature of our significant accounting policies or the application of those policies from those reported in our annual report on Form 10-K for the year then ended April 29, 2018. Recently Adopted Accounting Pronouncements In May 2014, the FASB issued ASU No. 2014-09, which subsequently amended ASC Topic 606, Revenue from Contracts with Customers. The amendments in this ASU are intended to enhance the comparability of revenue recognition practices and will be applied to all contracts with customers. Improved disclosures related to the nature, amount, timing, and uncertainty of revenue that is recognized are requirements under the amended guidance. The new revenue standard became effective at the beginning of our fiscal 2019, and therefore, we applied the new revenue guidance in our first quarter of fiscal 2019 interim financial statements. This guidance did not have a material impact on our results of operations and financial position but did have a material impact on the disclosures required in our notes to the consolidated financial statements, which are disclosed in Note 5. In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments, to address the diversity in how certain cash receipts and cash payments are presented in the statement of cash flows. This new guidance provides clarity around the cash flow classification for eight specific issues in an effort to reduce the current and potential future diversity in practice. This new standard, which is to be applied retrospectively, became effective at the beginning of our fiscal 2019, and therefore, we applied this new guidance in our first quarter of fiscal 2019 interim financial statements. During the first quarter of fiscal 2019, this new guidance did not impact our results of operations, balance sheet, or statement of cash flows. Currently, we do expect that this guidance will be applicable in determining how we classify certain contingent payments associated with our business combinations (see note 3) as either investing or financing activities. This guidance requires that cash payments not made soon after the acquisition date of a business combination by an acquirer to settle a contingent consideration liability should be separated and classified as cash outflows from financing activities. In comparison, cash payments made soon after the acquisition date should be separated and classified as cash outflows from investing activities. In October 2016, the FASB issued ASU No. 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory, to reduce the diversity in practice and complexity associated with accounting for the income tax consequences of intra-entity transfers of assets other than inventory. Prior GAAP prohibited recognition of deferred income taxes for an intra-entity transfer until the asset had been sold to an outside party. The new pronouncement stipulates that an entity should recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. This new standard, which is required to be applied on a modified retrospective basis through a cumulative-effect adjustment directly to retained earnings, became effective at the beginning of our fiscal 2019. Therefore, we were required to apply this new guidance in our first quarter fiscal 2019 interim financial statements. This guidance did not impact our results of operations and financial position. Recently Issued Accounting Pronouncements Leases In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842), which increases transparency and comparability among companies accounting for lease transactions. The most significant change of this update will require the recognition of lease assets and liabilities on the balance sheet for operating lease arrangements with lease terms greater than twelve months for lessees. This update will require a modified retrospective application which includes a number of optional practical expedients related to the identification and classification of leases commenced before the effective date. This ASU is effective for fiscal years and interim periods within those fiscal years, beginning after December 15, 2018. The FASB recently issued ASU No. 2018-11, “Leases (Topic 842): Targeted Improvements”, which allows entities to apply the transition provisions of the new standard at its adoption date instead of the earliest comparative period presented in the consolidated financial statements. This ASU allows entities to continue to use Topic 840, Leases, including its disclosure requirements, in the comparative years presented in the year the new leases standard is adopted. Entities that elect this option would still adopt the new leases standard using a modified retrospective transition method but would recognize a cumulative effect adjustment to the opening balance of retained earnings in the period of adoption rather than the earliest years presented. We are required to apply this guidance in our fiscal 2020 interim and annual financial statements and are currently assessing the impact that this guidance will have on our consolidated financial statements. We do expect this guidance to have a material impact on our financial position due to the requirement to recognize right-of-use assets and lease liabilities on our Consolidated Balance Sheets and the disclosures required in our notes to the consolidated financial statements.

2. Significant Accounting Policies

As of January 27, 2019, there were no changes in the nature of our significant accounting policies or the application of those policies from those reported in our annual report on Form 10-K for the year then ended April 29, 2018.

Recently Adopted Accounting Pronouncements

In May 2014, the FASB issued ASU No. 2014-09, which subsequently amended ASC Topic 606, Revenue from Contracts with Customers. The amendments in this ASU are intended to enhance the comparability of revenue recognition practices and will be applied to all contracts with customers. Improved disclosures related to the nature, amount, timing, and uncertainty of revenue that is recognized are requirements under the amended guidance. The new revenue standard became effective at the beginning of our fiscal 2019, and therefore, we applied the new revenue guidance in our first quarter of fiscal 2019 interim financial statements. This guidance did not have a material impact on our results of operations and financial position but did have a material impact on the disclosures required in our notes to the consolidated financial statements, which are disclosed in Note 5.

In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments, to address the diversity in how certain cash receipts and cash payments are presented in the statement of cash flows. This new guidance provides clarity around the cash flow classification for eight specific issues in an effort to reduce the current and potential future diversity in practice. This new standard, which is to be applied retrospectively, became effective at the beginning of our fiscal 2019, and therefore, we applied this new guidance in our first quarter of fiscal 2019 interim financial statements. During the first quarter of fiscal 2019, this new guidance did not impact our results of operations, balance sheet, or statement of cash flows. Currently, we do expect that this guidance will be applicable in determining how we classify certain contingent payments associated with our business combinations (see note 3) as either investing or financing activities. This guidance requires that cash payments not made soon after the acquisition date of a business combination by an acquirer to settle a contingent consideration liability should be separated and classified as cash outflows from financing activities. In comparison, cash payments made soon after the acquisition date should be separated and classified as cash outflows from investing activities.

In October 2016, the FASB issued ASU No. 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory, to reduce the diversity in practice and complexity associated with accounting for the income tax consequences of intra-entity transfers of assets other than inventory. Prior GAAP prohibited recognition of deferred income taxes for an intra-entity transfer until the asset had been sold to an outside party. The new pronouncement stipulates that an entity should recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. This new standard, which is required to be applied on a modified retrospective basis through a cumulative-effect adjustment directly to retained earnings, became effective at the beginning of our fiscal 2019. Therefore, we were required to apply this new guidance in our first quarter fiscal 2019 interim financial statements. This guidance did not impact our results of operations and financial position.

Recently Issued Accounting Pronouncements

Leases

In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842), which increases transparency and comparability among companies accounting for lease transactions. The most significant change of this update will require the recognition of lease assets and liabilities on the balance sheet for operating lease arrangements with lease terms greater than twelve months for lessees. This update will require a modified retrospective application which includes a number of optional practical expedients related to the identification and classification of leases commenced before the effective date. This ASU is effective for fiscal years and interim periods within those fiscal years, beginning after December 15, 2018.

The FASB recently issued ASU No. 2018-11, “Leases (Topic 842): Targeted Improvements”, which allows entities to apply the transition provisions of the new standard at its adoption date instead of the earliest comparative period presented in the consolidated financial statements. This ASU allows entities to continue to use Topic 840, Leases, including its disclosure requirements, in the comparative years presented in the year the new leases standard is adopted. Entities that elect this option would still adopt the new leases standard using a modified retrospective transition method but would recognize a cumulative effect adjustment to the opening balance of retained earnings in the period of adoption rather than the earliest years presented.

We are required to apply this guidance in our fiscal 2020 interim and annual financial statements and are currently assessing the impact that this guidance will have on our consolidated financial statements. We do expect this guidance to have a material impact on our financial position due to the requirement to recognize right-of-use assets and lease liabilities on our Consolidated Balance Sheets and the disclosures required in our notes to the consolidated financial statements.