Business Segments - Summary of Sales by Merchandise Category Related to Retail Trade and Electronic Commerce Trade Segments (Detail)	3 Months Ended
	May 03, 2014	May 04, 2013
Revenue from External Customer [Line Items]
Percentage of total net sales	100.00%	100.00%
Books and Magazines [Member]
Revenue from External Customer [Line Items]
Percentage of total net sales	70.90%	73.10%
General Merchandise [Member]
Revenue from External Customer [Line Items]
Percentage of total net sales	12.80%	12.00%
Cafe and yogurt [Member]
Revenue from External Customer [Line Items]
Percentage of total net sales	5.90%	4.80%
Electronics, eBooks and Accessories [Member]
Revenue from External Customer [Line Items]
Percentage of total net sales	1.30%	1.90%
Media [Member]
Revenue from External Customer [Line Items]
Percentage of total net sales	4.30%	2.70%
Other [Member]
Revenue from External Customer [Line Items]
Percentage of total net sales	4.80%	5.50%