Selected Quarterly Financial Data - Additional Information (Detail) (USD $)	1 Months Ended		3 Months Ended			12 Months Ended			3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	1 Months Ended	3 Months Ended
	Jul. 31, 2013	May 31, 2013	Feb. 02, 2013	Oct. 27, 2012	Jul. 28, 2012	Feb. 01, 2014	Feb. 02, 2013	Jan. 28, 2012	Feb. 02, 2013 U.S. [Member]	Feb. 02, 2013 U.S. [Member]	Feb. 02, 2013 Former Executives [Member]	Feb. 02, 2013 Former Executives [Member]	Feb. 02, 2013 Bonus Payments to Employees [Member]	Feb. 02, 2013 Bonus Payments to Employees [Member]	May 31, 2013 Performance-based Vesting Shares [Member]	Aug. 03, 2013 Performance-based Vesting Shares [Member]	May 04, 2013 Performance-based Vesting Shares [Member]	Feb. 02, 2013 Performance-based Vesting Shares [Member]	Feb. 02, 2013 Equity Grants [Member]	Aug. 03, 2013 Options Granted [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-cash compensation charge						$ 67,622,000	$ 116,183,000	$ 1,557,000								$ 26,200,000	$ 3,300,000	$ 23,100,000	$ 92,000,000	$ 33,700,000
Cost incurred in connection with follow-on offerings	2,100,000	2,100,000													800,000
Management fee			7,000,000
Selling, general and administrative expenses						502,029,000	505,485,000	329,506,000			2,200,000	2,200,000	1,300,000	1,300,000
Increased in tariff obligations			3,300,000
Cumulative profitability position						3 years	3 years
Net changes in deferred tax assets and liabilities						87,000	6,000	11,133,000	57,200,000	57,200,000
Payment for legal and other professional fees				$ 2,800,000	$ 2,000,000