Investments (Tables)

6 Months Ended

Jul. 31, 2011

Investments [Abstract]

Ownership interest in the stock of Banfield

	July 31, 2011					January 30, 2011				August 1, 2010
	Shares		Amount			Shares		Amount		Shares		Amount
Voting common stock and preferred stock		4,693	$	21,675			4,693	$	21,675		4,693	$	21,675
Equity in income from Banfield		—		26,541			—		21,183		—		14,368
Dividend received from Banfield		—		(15,960	)		—		—		—		—
Total equity investment in Banfield		4,693	$	32,256			4,693	$	42,858		4,693	$	36,043

Equity method investment summarized financial position

	July 31, 2011		January 30, 2011		August 1, 2010
Current assets	$	340,116	$	351,379	$	314,625
Noncurrent assets		128,942		119,175		122,987
Current liabilities		332,841		279,836		278,683
Noncurrent liabilities		11,257		12,367		15,932

Equity method investment summarized financial performance

	Thirteen Weeks Ended				Twenty-Six Weeks Ended
	July 31, 2011		August 1, 2010		July 31, 2011		August 1, 2010
Net sales	$	176,428	$	161,346	$	341,286	$	310,654
Income from operations		23,532		16,929		44,919		28,646
Net income		13,250		10,096		25,512		16,940