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Stock-based compensation expense, estimated expected forfeitures

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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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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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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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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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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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Percentage of vesting of share-based compensation awards.

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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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Number of non-vested options outstanding.

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Share-Based Compensation - Additional Information (Detail) $ / shares in Units, $ in Millions	12 Months Ended
	Apr. 02, 2016 USD ($) shares type_of_restricted_share_unit Tranche EquityPlan option_plan performance_measure $ / shares	Mar. 28, 2015 USD ($) $ / shares	Mar. 29, 2014 USD ($) $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of equity plans \| EquityPlan	2
Number of share option grant types \| option_plan	2
Outstanding options unvested (shares) \| shares	1,739,349
Outstanding options vested (shares) \| shares	4,081,064
Intrinsic value of options exercised	$ 70.3	$ 131.6
Cash received from options exercised	$ 12.7	$ 15.3
Weighted average grant date fair value of option (dollars per share) \| $ / shares	$ 14.35	$ 27.96	$ 24.95
Estimated value of future forfeitures	$ 2.8
Performance Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of performance measurements \| performance_measure	2
Performance Options \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period (years)	9 years
Performance Options \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period (years)	10 years
Individual Performance Based Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Potential number of shares that may be earned (percent)	20.00%
Performance target achievement term (years)	10 years
Individual performance vesting tranches \| Tranche	5
Company Wide Performance Based Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance target achievement term (years)	10 years
Time Based Option Award
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, vesting period (years)	4 years
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period (years)	7 years
Share-based compensation, vesting period (years)	4 years
Unrecognized stock based compensation expense	$ 19.8
Weighted average period of recognition (years)	2 years 2 months 8 days
Restricted Shares and Restricted Share Units \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, vesting period (years)	3 years
Restricted Shares and Restricted Share Units \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, vesting period (years)	4 years
Restricted Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, vesting period (years)	4 years
Unrecognized stock based compensation expense	$ 22.3
Weighted average period of recognition (years)	1 year 11 months 26 days
Fair value of restricted shares vested during a period	$ 14.4	$ 22.8	$ 17.6
Restricted Share Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock based compensation expense	$ 38.3
Weighted average period of recognition (years)	3 years 1 month 16 days
Types of equity instruments other than options \| type_of_restricted_share_unit	2
Fair value of restricted shares vested during a period	$ 1.1	$ 0.4	$ 0.2
Restricted Share Units \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, vesting period (years)	1 year
Restricted Share Units \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, vesting period (years)	4 years
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, vesting period (years)	3 years
Unrecognized stock based compensation expense	$ 15.4
Weighted average period of recognition (years)	1 year 6 months 28 days
Expense related to grants recognizable period (years)	3 years
Performance Shares \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Potential number of shares that may be earned (percent)	0.00%
Performance Shares \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Potential number of shares that may be earned (percent)	150.00%
Stock Option Plan 2008
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of plans adopted \| shares	1
Shares authorized for issuance (up to) \| shares	23,980,823
Shares available for grant \| shares	0
Expiration period (years)	10 years
Omnibus Incentive Plan 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for issuance (up to) \| shares	15,246,000
Shares available for grant \| shares	9,211,143
Expiration period (years)	7 years