Basis of Presentation: (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jul. 30, 2016	Jul. 30, 2016
Selling, General and Administrative Expenses
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Prior period reclassification adjustment	$ 0.9	$ 1.6
Cost of Goods Sold
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Prior period reclassification adjustment	$ (0.9)	$ (1.6)