Contract with customer liability revenue deferred.

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- Definition

Percentage of increase (decrease) gross margin.

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for the marketing, trade and selling of the entity's goods and services. Marketing costs would include expenditures for planning and executing the conception, pricing, promotion, and distribution of ideas, goods, and services; costs of public relations and corporate promotions; and obligations incurred and payable for sales discounts, rebates, price protection programs, etc. offered to customers and under government programs. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

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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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

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Amount of increase (decrease) in revenue recognized for cumulative catch-up adjustment from change in measure of progress which (increases) decreases obligation to transfer good or service to customer for which consideration from customer has been received or is due.

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Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from reserves and accruals.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of the effect of a change in accounting principle on basic earnings per share.

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Amount of the effect of a change in accounting principle on diluted earnings per share.

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The cumulative amount of the reporting entity's undistributed earnings or deficit.

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Revenue Recognition and Contracts with Customers - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Jul. 31, 2018	May 01, 2018	Apr. 30, 2018
Disaggregation Of Revenue [Line Items]
Accrued sales promotions			$ 17,200
Deferred revenue relating to outstanding performance obligations	$ 13,621		23,305
Deferred tax asset			(12,895)
Reduction to beginning retained earnings	(392,181)		$ (389,146)
Revenue recognized	13,998
Revenue deferred	4,314
Net increase of revenue	$ 9,700
ASU 2014-09
Disaggregation Of Revenue [Line Items]
Deferred revenue relating to outstanding performance obligations		$ 23,305
Deferred tax asset		(11,376)
Reduction to beginning retained earnings		(384,536)
ASU 2014-09 \| Accounting Standard Adjustments
Disaggregation Of Revenue [Line Items]
Deferred revenue relating to outstanding performance obligations		23,305
Deferred tax asset		1,519
Reduction to beginning retained earnings		$ 4,610
Percentage of decrease in gross margin	0.90%
Increase in earnings per share basic	$ 0.03
Increase in earnings per share diluted	$ 0.03
Total Net Sales \| ASU 2014-09 \| Domestic
Disaggregation Of Revenue [Line Items]
Concentration risk percentage	95.00%