Additional Detail Regarding Composition of Indefinite Lived and Finite Lived Intangible Assets (Detail) (USD $) In Millions, unless otherwise specified	Aug. 02, 2014
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Definite-lived trade names, gross carrying amount	$ 1.6
Definite-lived favorable leases, gross carrying amount	50.2
Definite-lived intangible assets, gross carrying amount	51.8
Indefinite-lived trade names, gross carrying amount	418.2
Total intangible assets, gross carrying amount	470.0
Definite-lived intangible assets, accumulated amortization	(2.4)
Definite-lived intangible assets, accumulated amortization	(2.4)
Total intangible assets, net, accumulated amortization	(2.4)
Definite-lived intangible assets, net carrying amount	49.4
Indefinite-lived trade names, net carrying amount	418.2
Total intangible assets, net carrying amount	467.6
Trade names
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Definite-lived intangible assets, net carrying amount	1.6
Favorable Leases
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Definite-lived intangible assets, net carrying amount	$ 47.8