Summary of Components of Pension Expense (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jul. 28, 2012	Jul. 30, 2011	Jul. 28, 2012	Jul. 30, 2011
Payless Plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 0.2	$ 0.2	$ 0.4	$ 0.4
Interest cost	0.3	0.4	0.7	0.9
Amortization of prior service cost	0.4	0.4	0.8	0.8
Amortization of actuarial loss	0.6	0.4	1.1	0.8
Total	1.5	1.4	3.0	2.9
PLG Plan
Defined Benefit Plan Disclosure [Line Items]
Interest cost	1.1	1.2	2.3	2.4
Expected return on net assets	(1.4)	(1.4)	(2.8)	(2.7)
Amortization of actuarial loss	0.6	0.3	1.3	0.6
Total	$ 0.3	$ 0.1	$ 0.8	$ 0.3