Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Jul. 29, 2012	Jan. 29, 2012	Jul. 31, 2011
ASSETS
Cash and cash equivalents	$ 282,011	$ 342,892	$ 259,180
Short-term investments	16,730	20,311	11,833
Restricted cash	71,916	70,189	61,439
Receivables, net	56,358	53,899	63,991
Merchandise inventories	691,820	644,864	638,294
Deferred income taxes	51,381	51,381	44,999
Prepaid expenses and other current assets	131,521	80,352	84,177
Total current assets	1,301,737	1,263,888	1,163,913
Property and equipment, net	1,016,359	1,067,028	1,072,269
Equity investment in Banfield	30,940	37,824	32,256
Deferred income taxes	84,288	93,485	92,198
Goodwill	44,043	44,084	45,428
Other noncurrent assets	44,115	37,775	37,553
Total assets	2,521,482	2,544,084	2,443,617
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable and bank overdraft	248,072	199,177	189,959
Accrued payroll, bonus and employee benefits	140,607	158,079	123,557
Accrued occupancy expenses and deferred rents	71,543	68,584	65,704
Current maturities of capital lease obligations	58,152	54,219	49,362
Other current liabilities	188,978	201,247	142,081
Total current liabilities	707,352	681,306	570,663
Capital lease obligations	482,099	505,273	514,724
Deferred rents	77,992	81,403	83,675
Other noncurrent liabilities	117,272	122,273	118,620
Total liabilities	1,384,715	1,390,255	1,287,682
Commitments and contingencies
Stockholders' equity:
Preferred stock; $.0001 par value; 10,000 shares authorized, none issued and outstanding
Common stock; $.0001 par value; 625,000 shares authorized,166,607, 164,801 and 163,748 shares issued	17	16	16
Additional paid-in capital	1,377,678	1,312,996	1,268,297
Retained earnings	1,647,088	1,507,054	1,379,937
Accumulated other comprehensive income	5,322	5,490	7,964
Less: Treasury stock, at cost, 58,464, 54,686 and 51,003 shares	(1,893,338)	(1,671,727)	(1,500,279)
Total stockholders' equity	1,136,767	1,153,829	1,155,935
Total liabilities and stockholders' equity	$ 2,521,482	$ 2,544,084	$ 2,443,617