Income Taxes - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Mar. 29, 2015	Mar. 30, 2014	Mar. 31, 2013	Apr. 03, 2016
Income Taxes [Line Items]
Valuation allowance against deferred tax assets	$ 1.7	$ 1.7
Undistributed earnings of foreign subsidiaries	392.9
Income tax benefit related to a matter effectively settled with IRS	2.5		9.5
Income tax benefit resulting from the remeasurement of an uncertain tax position			4.8
Unrecognized tax benefits that, if recognized, would affect the effective tax rate	10.0
Tax benefit from state income taxes	2.9
Unrecognized tax benefits interest expense and penalties	3.5	3.5
Recognized interest expense, net of the related tax effect, and penalties aggregate	0.1	2.1	1.0
Reduction in liability of uncertain tax position	2.4
Research tax credit carryforwards [Member]
Income Taxes [Line Items]
Valuation allowance, amount	17.5	14.8
Investment Securities Carryforward [Member]
Income Taxes [Line Items]
Valuation allowance, amount	1.1	1.2
Settlement with Taxing Authority [Member]
Income Taxes [Line Items]
Federal and state income tax payments			32.8
Settlement with Taxing Authority [Member] | Scenario, Forecast [Member]
Income Taxes [Line Items]
Federal and state income tax payments				1.9
Federal tax authority [Member]
Income Taxes [Line Items]
Net operating loss carryforwards	13.0
Federal tax authority [Member] | Minimum [Member]
Income Taxes [Line Items]
Operating loss carryforwards, expiration date	Mar. 28, 2027
Federal tax authority [Member] | Maximum [Member]
Income Taxes [Line Items]
Operating loss carryforwards, expiration date	Apr. 01, 2029
Federal tax authority [Member] | Earliest Identified Tax Year [Member] | Internal Revenue Service [Member]
Income Taxes [Line Items]
With limited exceptions, year which prior years tax returns are no longer subject to tax examinations	2014
State tax authority [Member]
Income Taxes [Line Items]
Net operating loss carryforwards	63.2
State tax authority [Member] | Minimum [Member]
Income Taxes [Line Items]
Operating loss carryforwards, expiration date	Apr. 02, 2017
Tax credit carryforwards, expiration date	Apr. 02, 2017
State tax authority [Member] | Maximum [Member]
Income Taxes [Line Items]
Operating loss carryforwards, expiration date	Mar. 28, 2032
Tax credit carryforwards, expiration date	Mar. 31, 2030
State tax authority [Member] | Earliest Identified Tax Year [Member]
Income Taxes [Line Items]
With limited exceptions, year which prior years tax returns are no longer subject to tax examinations	2008
State tax authority [Member] | Research tax credit carryforwards [Member]
Income Taxes [Line Items]
Tax credit carryforwards	28.2
State tax authority [Member] | Capital loss carryovers [Member]
Income Taxes [Line Items]
Tax credit carryforwards	54.5
State tax authority [Member] | Alternative minimum tax credits [Member]
Income Taxes [Line Items]
Tax credit carryforwards	0.5
Federal tax carryforwards [Member] | Research tax credit carryforwards [Member]
Income Taxes [Line Items]
Tax credit carryforwards	$ 4.5
Federal tax carryforwards [Member] | Research tax credit carryforwards [Member] | Minimum [Member]
Income Taxes [Line Items]
Tax credit carryforwards, expiration date	Apr. 02, 2034
Federal tax carryforwards [Member] | Research tax credit carryforwards [Member] | Maximum [Member]
Income Taxes [Line Items]
Tax credit carryforwards, expiration date	Apr. 01, 2035
Foreign tax authority [Member] | Earliest Identified Tax Year [Member]
Income Taxes [Line Items]
With limited exceptions, year which prior years tax returns are no longer subject to tax examinations	2008