Stock-Based Compensation - Summary of Stock Option Activity (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	9 Months Ended	12 Months Ended
Dec. 28, 2013	Jan. 03, 2015	Mar. 30, 2013	Mar. 31, 2012
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Shares Under Options, Outstanding, Beginning balance	653,471	586,766	703,129
Shares Under Options, Exercised	(24,976)	(88,152)	(25,050)
Shares Under Options, Cancelled/Forfeited	(41,729)	(4,131)	(24,608)
Shares Under Options, Outstanding, Ending balance	586,766	494,483	653,471	703,129
Shares Under Options, Exercisable	586,766	494,483	619,658
Shares Under Options, Vested and expected to vest in the future at January 3, 2015		494,483
Weighted Average Exercise Price, Options outstanding, Beginning balance	$ 18.82	$ 19.30	$ 18.43
Weighted Average Exercise Price, Exercised	$ 9.49	$ 12.68	$ 8.10
Weighted Average Exercise Price, Cancelled/Forfeited	$ 17.71	$ 3.25	$ 18.64
Weighted Average Exercise Price, Options outstanding, Ending balance	$ 19.30	$ 20.61	$ 18.82	$ 18.43
Weighted Average Exercise Price, Exercisable	$ 19.30	$ 20.61	$ 19.09
Weighted Average Exercise Price, Vested and expected to vest in the future at January 3, 2015		$ 20.61
Weighted Average Remaining Contractual Life Years, Options outstanding	4 years 4 days	3 years 3 months 18 days	4 years 7 months 24 days	5 years 6 months 11 days
Weighted Average Remaining Contractual Life Years, Exercisable	4 years 4 days	3 years 3 months 18 days	4 years 6 months 26 days
Aggregate Intrinsic Value, Options outstanding, Beginning balance	$ 1,428	$ 2,965	$ 1,926
Aggregate Intrinsic Value, Exercised	298	869	210
Aggregate Intrinsic Value, Options outstanding, Ending balance	2,965	2,772	1,428	1,926
Aggregate Intrinsic Value, Exercisable	2,965	2,772	1,304
Aggregate Intrinsic Value, Vested and expected to vest in the future at January 3, 2015		$ 2,772

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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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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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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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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 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 that were terminated.

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

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