Equity Compensation (Narrative) (Details) $ / shares in Units, shares in Thousands	12 Months Ended
Mar. 31, 2018 USD ($) $ / shares shares	Mar. 25, 2017 USD ($) $ / shares shares	Mar. 26, 2016 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for grant reduction ratio	1.5
Shares reserved for issuance under the Stock Option Plans (in shares) \| shares	11,900
Stock compensation expense	$ 48,741,000	$ 39,593,000	$ 33,506,000
Excess tax benefits, amount	11,700,000	22,900,000	0
Net amount received from exercise of stock options granted	$ 4,400,000	$ 16,400,000	$ 6,500,000
Options exercised (in shares) \| shares	234	1,382	773
Total intrinsic value of stock options exercised	$ 9,800,000	$ 52,200,000	$ 19,700,000
Fair value of options that became vested during the period	$ 3,800,000	$ 3,800,000	$ 3,400,000
Number of options exercisable (in shares) \| shares	1,182	1,100
Weighted Average Estimated Fair Value Using Black-Scholes Option Valuation Model
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of stock options granted under the Black-Scholes valuation model (in dollars per share) \| $ / shares	$ 19.87	$ 22.84	$ 12.58
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation costs related to equity incentive plans, weighted average recognition period	1 year 3 months 7 days
Dividend yield	0.00%	0.00%	0.00%
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation costs related to equity incentive plans, weighted average recognition period	1 year 5 months 8 days
Vesting percentage	100.00%
Weighted averaged estimated fair value of awards granted (in dollars per share) \| $ / shares	$ 55.79	$ 52.40	$ 31.51
Intrinsic value of awards outstanding	$ 112,500,000
Fair value of awards vested	$ 26,700,000	$ 25,500,000
Shares vested (in shares) \| shares	1,077	1,032	992
Shares withheld to satisfy tax withholding requirements (in shares) \| shares	300	300
Payment to taxing authorities	$ 17,800,000	$ 14,100,000
Market Stock Unit (MSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, vesting period	3 years
Compensation costs related to equity incentive plans, weighted average recognition period	1 year 5 months 1 day
Dividend yield	0.00%	0.00%
Weighted averaged estimated fair value of awards granted (in dollars per share) \| $ / shares	$ 47.26	$ 75.58	$ 39.86
Intrinsic value of awards outstanding	$ 8,100,000
Fair value of awards vested	$ 1,500,000	$ 0	$ 0
Shares vested (in shares) \| shares	70	0	0
Market Stock Unit (MSUs) \| Weighted Average Estimated Fair Value Using Monte Carlo Simulation Model
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted averaged estimated fair value of awards granted (in dollars per share) \| $ / shares	$ 63.36
RSUs and MSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock compensation expense	$ 44,200,000	$ 35,500,000	$ 30,300,000
Options RSUs and MSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation costs related to equity incentive plans not yet recognized	$ 83,100,000
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, vesting period	4 years
Maximum \| Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, vesting period	4 years
Share based compensation, period from grant date options are exercisable	10 years
Maximum \| Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, vesting period	3 years
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, vesting period	0 years
Minimum \| Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, vesting period	0 years
Minimum \| Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, vesting period	0 years

Share-based compensation, excess tax benefit, amount in income tax vs. APIC following ASU 2016-09 adoption.

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Share Based Compensation, Shares Available For Grant Reduction Ratio

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Share Based Compensation, Vesting Percentage

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Number of common shares reserved for future issuance related to deferred compensation arrangements with individuals.

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Aggregate cash paid by the entity during the period to settle equity instruments granted under equity-based payment arrangements.

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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 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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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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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 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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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 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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Intrinsic value of equity-based compensation awards outstanding. Excludes stock and unit options.

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Period from grant date that an equity-based award expires, 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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For net-share settlement of share-based awards when the employer settles employees' income tax withholding obligations, this element represents the number of shares the employees use to repay the employer.

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

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Value of stock issued as a result of the exercise of stock options, after deduction of related income tax (expense) benefit.

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No definition available.

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