STOCK-BASED COMPENSATION - Additional Information (Detail) (USD $) In Millions, except Share data	6 Months Ended
Oct. 01, 2011	Oct. 02, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized	$ 4.7	$ 4.1
Income tax benefit recognized related to Stock-based compensation	$ 1.3	$ 1.3
Weighted average fair value of options granted	$ 18.27	$ 16.89
Shares purchased under the ESPP	41,067	35,992
Shares purchased under the ESPP, value per share	$ 46.80	$ 45.70

Stock Issued During Period, Employee Stock Purchase Plans, Price Per Share

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Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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- Definition

The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period.

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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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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Number of shares issued during the period as a result of an employee stock purchase plan.

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