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Capital Stock - Summary of Common Stock Outstanding (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Mar. 25, 2017 | Mar. 26, 2016 | Mar. 28, 2015
Class of Stock [Line Items] |  |  |  |  |
Beginning Balance, Shares | 17,960,881 |  | 17,960,881 |  |
Exercise of stock options, Shares | 0 |  | 0 |  | 111,372
Ending Balance, Shares | 17,960,881 |  | 17,960,881 |  | 17,960,881
Balance as of beginning balance | $ 69,601 |  | $ 69,601 |  |
Exercise of stock options | 0 |  | 0 |  | $ 116
Balance as of ending balance | $ 69,601 |  | $ 69,601 |  | $ 69,601
Class A Common Stock [Member] |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Beginning Balance, Shares | 10,242,911 |  | 10,242,911 |  |
Exercise of stock options, Shares | 0 |  | 0 |  |
Ending Balance, Shares | 10,242,911 |  | 10,242,911 |  | 10,242,911
Balance as of beginning balance | $ 30,988 | [1] | $ 30,988 |  |
Exercise of stock options | 0 |  | 0 |  |
Balance as of ending balance | $ 30,988 | [1] | $ 30,988 | [1] | $ 30,988
Class B Common Stock [Member] |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Beginning Balance, Shares | 7,717,970 |  | 7,717,970 |  |
Exercise of stock options, Shares | 0 |  | 0 |  |
Ending Balance, Shares | 7,717,970 |  | 7,717,970 |  | 7,717,970
Balance as of beginning balance | $ 38,613 | [1] | $ 38,613 |  |
Exercise of stock options | 0 |  | 0 |  |
Balance as of ending balance | $ 38,613 | [1] | $ 38,613 | [1] | $ 38,613
[1] | unlimited shares authorized

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