Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Aug. 01, 2015	Jan. 31, 2015
Current assets:
Cash and cash equivalents	$ 304,948	$ 148,934
Short-term investments	149,692	62,168
Accounts receivable-net	22,834	25,965
Merchandise inventories	707,516	559,297
Current deferred tax assets	28,148	27,904
Prepaid expense and other current assets	81,622	87,976
Total current assets	1,294,760	912,244
Long-term investments		18,338
Property and equipment-net	503,456	390,844
Goodwill	124,389	124,424
Trademarks and other intangible assets	48,530	48,554
Non-current deferred tax assets	8,363	8,689
Other non-current assets	17,490	22,906
Total assets	1,996,988	1,525,999
Current liabilities:
Accounts payable and accrued expenses	291,381	235,159
Deferred revenue and customer deposits	86,322	73,550
Current deferred tax liabilities	1,194	133
Other current liabilities	47,789	35,587
Total current liabilities	426,686	344,429
Financing obligations under build-to-suit lease transactions	186,367	124,770
Deferred rent and lease incentives	42,052	40,552
Non-current deferred tax liabilities	4,954
Other non-current obligations	29,327	28,944
Total liabilities	$ 1,194,710	$ 823,083
Commitments and contingencies (Note 15)
Stockholders' equity:
Preferred stock, $0.0001 par value per share, 10,000,000 shares authorized, no shares issued or outstanding as of August 1, 2015 and January 31, 2015
Common stock, $0.0001 par value per share, 180,000,000 shares authorized, 40,485,727 shares issued and 40,190,839 shares outstanding as of August 1, 2015; 40,184,803 shares issued and 39,892,540 shares outstanding as of January 31, 2015	$ 4	$ 4
Additional paid-in capital	732,357	668,989
Accumulated other comprehensive loss	(1,361)	(502)
Retained earnings	90,801	53,710
Treasury stock-at cost, 294,888 shares as of August 1, 2015 and 292,263 shares as of January 31, 2015	(19,523)	(19,285)
Total stockholders' equity	802,278	702,916
Total liabilities and stockholders' equity	1,996,988	1,525,999
Convertible Senior Notes Due 2019 [Member]
Current liabilities:
Convertible senior notes due-net	291,249	$ 284,388
Convertible Senior Notes Due 2020 [Member]
Current liabilities:
Convertible senior notes due-net	$ 214,075