Taxes - Significant Components of Deferred Tax Assets (Liabilities) (Detail) - USD ($) $ in Millions	Apr. 02, 2016	Mar. 28, 2015
Income Tax Disclosure [Abstract]
Inventories	$ 10.5	$ 11.2
Payroll related accruals	2.2	0.4
Deferred rent	37.1	30.4
Net operating loss carryforwards	3.4	5.9
Stock compensation	30.0	23.8
Sales allowances	13.4	10.1
Other	12.1	11.1
Total deferred tax assets, gross	108.7	92.9
Valuation allowance	(3.4)	(5.7)
Total deferred tax assets	105.3	87.2
Goodwill and intangibles	(32.9)	(32.7)
Depreciation	(48.0)	(34.6)
Other	(3.4)	(3.9)
Total deferred tax liabilities	(84.3)	(71.2)
Net deferred tax assets	$ 21.0	$ 16.0