Quarterly Financial Information - Unaudited Quarterly Results of Operations (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Feb. 02, 2014	Nov. 03, 2013	Aug. 04, 2013	May 05, 2013	Feb. 03, 2013	Oct. 28, 2012	Jul. 29, 2012	Apr. 29, 2012	Feb. 02, 2014	Feb. 03, 2013	Jan. 29, 2012
Consolidated statements of operations and comprehensive income:
Net revenue	$ 520,993	$ 379,900	$ 344,513	$ 345,782	$ 485,489	$ 316,537	$ 282,634	$ 285,698	$ 1,591,188	$ 1,370,358	$ 1,000,839
Cost of goods sold	242,203	175,294	158,558	175,057	210,982	141,237	126,879	128,434	751,112	607,532	431,488
Gross profit	278,790	204,606	185,955	170,725	274,507	175,300	155,755	157,264	840,076	762,826	569,351
Operating expenses:
Selling, general and administrative expenses	124,643	112,270	106,969	104,836	121,932	94,689	85,567	84,199	448,718	386,387	282,393
Income from operations	154,147	92,336	78,986	65,889	152,575	80,611	70,188	73,065	391,358	376,439	286,958
Other income (expense), net	1,519	1,453	1,295	1,501	1,457	1,424	1,166	910	5,768	4,957	2,500
Income before provision for income taxes	155,666	93,789	80,281	67,390	154,032	82,035	71,354	73,975	397,126	381,396	289,458
Provision for income taxes	45,974	27,678	23,816	20,111	44,657	24,655	13,652	27,001	117,579	109,965	104,494
Net income	109,692	66,111	56,465	47,279	109,375	57,380	57,702	46,974	279,547	271,431	184,964
Net income attributable to non-controlling interest	0	0	0	0	0	64	480	331	0	875	901
Net income attributable to lululemon athletica inc.	109,692	66,111	56,465	47,279	109,375	57,316	57,222	46,643	279,547	270,556	184,063
Basic earnings per share (in dollars per share)	$ 0.75	$ 0.46	$ 0.39	$ 0.33	$ 0.76	$ 0.40	$ 0.40	$ 0.32	$ 1.93	$ 1.88	$ 1.29
Diluted earnings per share (in dollars per share)	$ 0.75	$ 0.45	$ 0.39	$ 0.32	$ 0.75	$ 0.39	$ 0.39	$ 0.32	$ 1.91	$ 1.85	$ 1.27
Other comprehensive (loss) income:
Foreign currency translation adjustment	(53,657)	(9,153)	(21,901)	(4,447)	(79)	2,642	(10,567)	7,545	(89,158)	(459)	1,220
Comprehensive income	$ 56,035	$ 56,958	$ 34,564	$ 42,832	$ 109,296	$ 59,958	$ 46,655	$ 54,188	$ 190,389	$ 270,097	$ 185,283