Summary Of Significant Accounting Policies (Narrative) (Details) (USD $)	0 Months Ended	12 Months Ended				12 Months Ended												12 Months Ended	1 Months Ended			12 Months Ended
	Dec. 15, 2011	Feb. 01, 2014 center sqft segment	Feb. 02, 2013	Jan. 28, 2012	Jan. 29, 2011	Feb. 01, 2014 Property, Plant and Equipment [Member]	Feb. 02, 2013 Property, Plant and Equipment [Member]	Jan. 28, 2012 Property, Plant and Equipment [Member]	Feb. 01, 2014 Minimum [Member] Equipment [Member]	Feb. 01, 2014 Minimum [Member] Land Improvements and Buildings [Member]	Feb. 01, 2014 Minimum [Member] Fixtures and Equipment [Member]	Feb. 01, 2014 Maximum [Member] Equipment [Member]	Feb. 01, 2014 Maximum [Member] Land Improvements and Buildings [Member]	Feb. 01, 2014 Maximum [Member] Fixtures and Equipment [Member]	Feb. 01, 2014 Ross Dress For Less [Member] store state	Feb. 02, 2013 Ross Dress For Less [Member] store	Feb. 01, 2014 DD's Discounts [Member] state store	Feb. 01, 2014 California [Member] center office warehouse	Jul. 31, 2013 Perris California Distribution Center [Member] sqft	Jan. 31, 2014 New York City Office [Member]	Oct. 31, 2013 New York City Office [Member]	Feb. 01, 2014 New York City Office [Member] sqft	Sep. 30, 2013 New York City Office [Member]	Feb. 01, 2014 Standby Letters of Credit [Member]	Feb. 02, 2013 Standby Letters of Credit [Member]	Feb. 01, 2014 Standby Letters of Credit [Member] New York City Office [Member]	Sep. 30, 2013 Standby Letters of Credit [Member] New York City Office [Member]
Summary Of Significant Accounting Policies [Line Items]
Number of Stores															1,146		130
Number of states company operates in															33		10
Number of distribution centers		4																2
Number of buying offices in California																		1
Number of warehouses																		1
Percent of stores located in California																		25.00%
Number of reportable segments		1
Stock split, conversion ratio	2
Purchase obligations		$ 1,812,000,000
Fair value of cash and cash equivalents considered as Level 1 inputs		423,168,000	646,761,000	649,835,000	833,924,000
Packaway inventory percentage of total inventories		49.00%	47.00%
Property and equipment estimated useful life, straight-line method									3 years	20 years	3 years	12 years	40 years	7 years
Depreciation and amortization expense on property and equipment		206,111,000	185,491,000	159,892,000
Computer hardware and software costs, net of amortization		209,400,000	166,200,000
Interest capitalized amount		10,800,000	3,900,000	500,000
Property and equipment purchased but not yet paid						61,300,000	23,700,000	11,100,000
Facility, square foot area		11,000																	1,300,000			411,000
Purchase of Perris, California distribution center		550,515,000	424,434,000	416,271,000															70,000,000
Sales and purchase agreement, property purchase price agreed upon																					222,000,000
Sales and purchase agreement, property lease, term																					99 years
Sales and purchase agreement, down payment paid for property, percentage																					10.00%
Escrow deposit																				13,300,000			11,100,000
Standby letter of credit, amount outstanding																								24,300,000	33,800,000	11,100,000	11,100,000
Additional amount deposited to escrow																				2,200,000
Number of stores closed															11	8
Lease loss liability		6,300,000	3,400,000
Book cash overdrafts		75,700,000	82,600,000
Advertising costs		$ 70,200,000	$ 67,700,000	$ 59,900,000
Weighted average shares that could potentially dilute basic EPS		2,900	53,900	5,900