Debt: (Details)	3 Months Ended	9 Months Ended					9 Months Ended						3 Months Ended	6 Months Ended
	Oct. 29, 2011 USD ($)	Oct. 27, 2012 USD ($)	Oct. 29, 2011 USD ($)	Jan. 28, 2012 USD ($)	Oct. 27, 2012 [RevolvingCreditFacilityMember] USD ($)	Oct. 27, 2012 [DomesticLineOfCreditMember] USD ($)	Oct. 27, 2012 [ForeignLineOfCreditMember] USD ($)	Oct. 27, 2012 [ForeignLineOfCreditMember] GBP (£)	Jan. 28, 2012 [ForeignLineOfCreditMember] USD ($)	Oct. 29, 2011 [ForeignLineOfCreditMember] USD ($)	Oct. 27, 2012 [PriorDomesticLineOfCreditMember] USD ($)	Oct. 29, 2011 [PriorDomesticLineOfCreditMember] USD ($)	Jul. 28, 2012 [SeniorNotesMember] USD ($)	Oct. 29, 2011 [SeniorNotesMember] USD ($)	Oct. 27, 2012 [SeniorNotesMember]	Jan. 28, 2012 [SeniorNotesMember] USD ($)
Debt
Maximum borrowing capacity						$ 235,000,000		£ 7,000,000			$ 175,000,000
Stated interest rate (as a percent)														11.375%	11.375%	11.375%
Total debt obligations, including unamortized discount						123,301,000	6,955,000		2,571,000	1,658,000		1,621,000		105,000,000		105,000,000
Unamortized discount	(1,710,000)		(1,710,000)	(1,595,000)
Total debt	106,569,000	130,256,000	106,569,000	105,976,000
Short-term debt and current maturities of long-term debt	(3,279,000)	(6,955,000)	(3,279,000)	(2,571,000)
Long-term debt, less current maturities	103,290,000	123,301,000	103,290,000	103,405,000
Variable interest rate base							bank's base rate	bank's base rate
Aggregate principal amount of debt repurchased													105,000,000	45,000,000
Amount paid for repurchase of debt		111,000,000	52,175,000										111,000,000	52,200,000
Write-off of unamortized deferred financing costs													1,700,000	1,800,000
Write-off of unamortized bond discount													1,400,000
Loss on repurchase of debt	769,000	9,143,000	9,017,000										9,100,000	9,000,000
Trade letters of credit outstanding					7,800,000
Unused availability under line of credit						$ 90,000,000	$ 1,400,000