Stock-Based Compensation - Summary of Stock Option Activity (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
Mar. 30, 2014	Mar. 31, 2013	Apr. 01, 2012
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock option outstanding beginning balance, Number of Shares	16,829	19,011	21,856
Stock options granted, Number of Shares	75	1,387	1,630
Stock options exercised, Number of Shares	(88)	(79)	(1,544)
Stock options forfeited (cancelled pre-vesting), Number of Shares	(732)	(177)	(686)
Stock options expired (cancelled post-vesting), Number of Shares	(4,881)	(3,313)	(2,245)
Stock option outstanding ending balance, Number of Shares	11,203	16,829	19,011
Stock option outstanding beginning balance, Weighted-Average Exercise Price	$ 17.14	$ 17.91	$ 18.51
Stock option vested and expected to vest ending balance, Number of Shares	11,123
Stock options granted, Weighted-Average Exercise Price	$ 10.90	$ 13.67	$ 15.73
Stock option exercisable ending balance, Number of Shares	10,216
Stock options exercised, Weighted-Average Exercise Price	$ 12.00	$ 14.31	$ 14.83
Stock options forfeited (cancelled pre-vesting), Weighted-Average Exercise Price	$ 15.02	$ 15.82	$ 15.86
Stock options expired (cancelled post-vesting), Weighted-Average Exercise Price	$ 20.45	$ 20.23	$ 24.93
Stock option outstanding ending balance, Weighted-Average Exercise Price	$ 15.84	$ 17.14	$ 17.91
Stock option vested and expected to vest ending balance, Weighted-Average Exercise Price	$ 15.85
Stock option exercisable, Weighted-Average Exercise Price	$ 15.95
Stock option outstanding, Weighted-Average Remaining Contractual Term	4 years 6 months
Stock option vested and expected to vest, Weighted-Average Remaining Contractual Term	4 years 6 months
Stock option exercisable, Weighted-Average Remaining Contractual Term	4 years 2 months 12 days
Stock option outstanding, Aggregate Intrinsic Value	$ 327
Stock option vested and expected to vest, Aggregate Intrinsic Value	325
Stock option exercisable, Aggregate Intrinsic Value	$ 168

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Net number of share options (or share units) granted during the period.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of fully vested and expected to vest options outstanding.

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As of the balance sheet date, the number of shares into which fully vested and expected to vest stock options outstanding can be converted under the option plan.

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As of the balance sheet date, the weighted-average exercise price for outstanding stock options that are fully vested or expected to vest.

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Weighted average remaining contractual term for fully vested and expected to vest options outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Number of share options (or share units) exercised during the current period.

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