Share Based Compensation (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Mar. 30, 2019	Mar. 31, 2018	Mar. 25, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 4,022	$ 2,858	$ 2,483
Tax benefit from compensation expense	1,000
Unrecognized compensation expense related to non-vested fixed stock options	$ 5,900
Compensation expenses recognition period related to nonvested fixed stock options	2 years
Weighted average fair value of options granted	$ 15.44	$ 8.84	$ 12.17
Total shares exercisable	405,245	495,573	563,109
Weighted average exercise price, exercisable	$ 56.50
Options available for grant	990,930
Employee options term	6 years
Options granted	123,627	546,080	232,560
Weighted average contractual term, options outstanding	3 years 10 months 24 days	3 years 9 months 18 days
Weighted average contractual term of all options exercisable	3 years 2 months 12 days	2 years
Aggregate intrinsic value, options outstanding	$ 26,600	$ 5,200
Aggregate intrinsic value of all options exercisable	12,200	2,200
Fair value of awards vested under the Company's stock plans	$ 2,800	$ 1,400	$ 2,800
Aggregate intrinsic value, Company's closing stock price	$ 86.52	$ 53.60	$ 52.15
Aggregate intrinsic value of options exercised	$ 7,400	$ 2,800	$ 13,300
Cash received from stock option exercises	14,640	4,816	3,492
Tax benefit from option exercises	1,000	500	$ 3,500
Aggregate intrinsic value	$ 5,000	$ 3,300
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee options term	10 years
Market Condition Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted	0	100,000
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period of employee options	4 years
Stock Options [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period of employee options	3 years
Stock Options [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period of employee options	4 years
Restricted Stock [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period of employee options	3 years
Restricted Stock [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period of employee options	4 years
Incentive Stock Option Plan 2007 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock shares initially reserved for future issuance	873,000
Common shares authorized for issuance	5,001,620
Senior Management [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period of employee options	3 years

Closing stock price on last trading day.

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Common Stock Shares Initially Reserved For Future Issuance

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The number of years that an award under the equity-based compensation plan would be outstanding.

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Unrecognized cost of unvested share-based compensation awards.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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

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Amount of tax benefit from exercise of stock options granted under share-based compensation arrangement.

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Amount of cash inflow from exercise of stock options granted under share-based compensation arrangement.

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The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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 maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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

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

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Intrinsic value of equity-based compensation awards not vested. Excludes stock and unit options.

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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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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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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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Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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