Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 27, 2014	Mar. 31, 2014
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 5,632	$ 6,004
Preferred stock, par value (in US$ per share)	$ 1.00	$ 1.00
Preferred stock, shares authorized	5,000,000us-gaap_PreferredStockSharesAuthorized	5,000,000us-gaap_PreferredStockSharesAuthorized
Preferred stock, shares issued	0us-gaap_PreferredStockSharesIssued	0us-gaap_PreferredStockSharesIssued
Common stock, par value (in US$ per share)	$ 0.001	$ 0.001
Common stock, shares authorized	100,000,000us-gaap_CommonStockSharesAuthorized	100,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued	26,301,000us-gaap_CommonStockSharesIssued	26,136,000us-gaap_CommonStockSharesIssued
Common stock, shares outstanding	15,363,000us-gaap_CommonStockSharesOutstanding	15,558,000us-gaap_CommonStockSharesOutstanding
Treasury stock, shares	10,938,000us-gaap_TreasuryStockShares	10,578,000us-gaap_TreasuryStockShares

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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