Accounting policies.

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The maturity period for cash and cash equivalents

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Number of facilities covered by union contracts.

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Number of union contracts expiring in next fiscal year.

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Promotional expenditures as a percentage of net sales, including amounts classified as a reduction of net sales.

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Requisite performance period for share based payments.

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- Definition

The requisite service and performance period for stock options issued in 2015

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The period under which uncertain tax positions will be considered short term on the Consolidated Balance Sheets.

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Accumulated change, net of tax, in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Includes an entity's share of an equity investee's Increase or Decrease in deferred hedging gains or losses.

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Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

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A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

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Investments in debt and equity securities which are categorized neither as held-to-maturity nor trading and which are intended to be sold or mature more than one year from the balance sheet date or operating cycle, if longer. Such securities are reported at fair value; unrealized gains (losses) related to Available-for-sale Securities are excluded from earnings and reported in a separate component of shareholders' equity (other comprehensive income), unless the Available-for-sale security is designated as a hedge or is determined to have had an other than temporary decline in fair value below its amortized cost basis. All or a portion of the unrealized holding gain (loss) of an Available-for-sale security that is designated as being hedged in a fair value hedge is recognized in earnings during the period of the hedge, as are other than temporary declines in fair value below the cost basis for investments in equity securities and debt securities that an entity intends to sell or it is more likely than not that it will be required to sell before the recovery of its amortized cost basis. Other than temporary declines in fair value below the cost basis for debt securities categorized as Available-for-sale that an entity does not intend to sell and for which it is not more likely than not that the entity will be required to sell before the recovery of its amortized cost basis are bifurcated into credit losses and losses related to all other factors. Other than temporary declines in fair value below cost basis related to credit losses are recognized in earnings, and losses related to all other factors are recognized in other comprehensive income.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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The amount of the cost recognized during the period for defined contribution plans.

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Unrecognized cost of unvested share-based compensation awards.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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Amount of cash inflow from realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.

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Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.

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Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

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Number of reporting units tested for impairment of goodwill. A reporting unit is an operating segment or one level below an operating segment.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

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Accounting Policies (Details Textual) $ in Millions	12 Months Ended
Accounting Policies (Details Textual) $ in Millions	Apr. 30, 2015 USD ($) Facility Contract ReportingUnits	Apr. 30, 2014 USD ($)	Apr. 30, 2013 USD ($)	Apr. 30, 2012 USD ($)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive (loss) income	$ (109.8)	$ (51.6)	$ (76.6)	$ (84.0)
Accounting Policies (Additional Textual) [Abstract]
Company's total promotional expenditures, including amounts classified as a reduction of net sales, represented approximately in percentage of net sales	29.00%	27.00%	25.00%
Advertising expense	$ 107.0	$ 124.7	$ 131.6
Research and development costs	$ 32.5	24.3	24.7
Requisite performance period for share-based payments	1 year
Requisite service period for share-based payments	4 years
Compensation cost related to nonvested share-based awards not yet recognized	$ 48.9
Weighted-average period of recognition	2 years 6 months
Excess tax benefits realized upon exercise or vesting of share-based compensation	$ 5.9	7.3	2.9
Charges for defined contribution plans	21.1	20.1	18.6
Allowance for doubtful accounts	1.0	0.9
Work-in-process inventory	81.5	62.1
Minimum operating lease obligations in 2016	43.1
Minimum operating lease obligations in 2017	40.5
Minimum operating lease obligations in 2018	36.0
Minimum operating lease obligations in 2019	27.1
Minimum operating lease obligations in 2020	22.0
Rent expense	67.1	60.6	59.2
Fair value of funds for the payment of benefits associated with nonqualified retirement plans included in other noncurrent assets	48.4	55.4
Unrealized pre-tax gains included in accumulated other comprehensive loss on available-for-sale securities	$ 5.2	5.3
Number of union contracts expiring in 2016 \| Contract	3
Facilities covered by union contracts \| Facility	10
Cash and cash equivalents maturity period	Three months or less
The period under which uncertain tax positions are considered short term	1 year
Deferred net gains recognized in accumulated other comprehensive loss		18.3
Number of reporting units \| ReportingUnits	6
Foreign Currency Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive (loss) income	$ (2.3)	$ 31.7	$ 61.5	$ 67.0
Machinery and equipment [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of assets	20 years
Machinery and equipment [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of assets	3 years
Capitalized software costs [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of assets	7 years
Capitalized software costs [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of assets	1 year
Buildings, fixtures, and improvements [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of assets	40 years
Buildings, fixtures, and improvements [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of assets	5 years
Seamild [Member]
Schedule of Equity Method Investments [Line Items]
Percentage of equity interest acquired	25.00%
Equity method investment	$ 35.9
Natural Blend [Member]
Schedule of Equity Method Investments [Line Items]
Percentage of equity interest acquired	50.00%
Equity method investment	$ 10.6
Mountain Country Foods [Member]
Schedule of Equity Method Investments [Line Items]
Percentage of equity interest acquired	20.00%
Equity method investment	$ 19.1
Unionized Employees [Member] \| Number of Employees, Total [Member]
Concentration Risk [Line Items]
Percentage of concentration risk	28.00%
Unionized Employees Subject to Union Contracts Expiring within One Year \| Number of Employees, Total [Member]
Concentration Risk [Line Items]
Percentage of concentration risk	11.00%
2015 Options [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Requisite service and performance period for share based payments	3 years
2015 Options [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Requisite service and performance period for share based payments	1 year