Taxes - Reconciliation of Beginning and Ending Amounts of Unrecognized Tax Benefits Excluding Accrued Interest (Detail) - USD ($) $ in Millions	12 Months Ended
Apr. 02, 2016	Mar. 28, 2015	Mar. 29, 2014
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized tax benefits beginning balance	$ 19.9	$ 18.1	$ 6.6
Additions related to prior period tax positions	0.0	0.4	2.5
Additions related to current period tax positions	5.8	5.2	9.3
Decreases from prior period positions	(5.7)	(3.8)	(0.3)
Decreases related to audit settlements	(3.2)	0.0	0.0
Unrecognized tax benefits ending balance	$ 16.8	$ 19.9	$ 18.1

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

No definition available.

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- Definition

Amount of unrecognized tax benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15A
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=65882285&loc=SL6600010-109319

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Unrecognized Tax Benefit
-URI http://asc.fasb.org/extlink&oid=6527854

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- Definition

Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

+ References

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- Definition

Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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- Definition

Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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