ACQUISITIONS (Details) (USD $)	3 Months Ended		12 Months Ended		0 Months Ended	7 Months Ended	0 Months Ended
	Nov. 01, 2014	Aug. 02, 2014	Jan. 31, 2015	Feb. 01, 2014	Jun. 18, 2014	Jan. 31, 2015	Aug. 06, 2013	Feb. 02, 2013	Aug. 06, 2014
Acquisitions
Acquisition and integration costs	$ 27,600,000	$ 42,900,000
Loss on extinguishment of debt		2,200,000	2,158,000
Fair values of the identifiable assets acquired and liabilities assumed
Goodwill			887,936,000	126,003,000		887,936,000		87,835,000
Total purchase price, net of cash acquired			1,491,393,000	94,906,000
Previous Credit Agreement
Acquisitions
Loss on extinguishment of debt					2,200,000
Jos. A. Bank
Acquisitions
Percentage of voting rights acquired					100.00%
Cash consideration per share (in dollars per share)					$ 65.00
Total consideration					1,800,000,000
Acquisition and integration costs			95,000,000
Deferred financing costs					51,100,000
Fair values of the identifiable assets acquired and liabilities assumed
Cash					328,900,000
Accounts receivable					8,300,000
Inventories					328,200,000
Other current assets					65,900,000
Property and equipment					168,800,000
Goodwill					764,200,000
Intangible assets					622,200,000
Accounts payable, accrued expenses and other current liabilities					(161,000,000)
Other liabilities					(305,200,000)
Total purchase price					1,820,300,000
Less: Cash acquired					(328,900,000)
Total purchase price, net of cash acquired					1,491,400,000
Number of separately identified intangible assets acquired					4
Fair value of trade name					539,100,000
Net sales from acquisition date						684,000,000
Net income from acquisition date						3,500,000
Integration costs						14,600,000
Purchase accounting adjustments						38,900,000
Unaudited pro forma consolidated financial information
Total net sales			3,596,820,000	3,505,399,000
Net earnings attributable to common shareholders			50,439,000	66,978,000
Net earnings per common share attributable to common shareholders:
Basic (in dollars per share)			$ 1.05	$ 1.36
Diluted (in dollars per share)			$ 1.04	$ 1.36
Jos. A. Bank | Step up of inventory to fair value and integration costs
Unaudited pro forma consolidated financial information
Net earnings attributable to common shareholders			34,500,000	33,900,000
Jos. A. Bank | Customer relationships
Fair values of the identifiable assets acquired and liabilities assumed
Intangibles assets					54,000,000
Estimated useful lives of intangibles					7 years
Jos. A. Bank | Favorable leases
Fair values of the identifiable assets acquired and liabilities assumed
Intangibles assets					24,400,000
Estimated useful lives of intangibles					11 years 6 months
Jos. A. Bank | Franchise store agreements
Fair values of the identifiable assets acquired and liabilities assumed
Intangibles assets					4,700,000
Estimated useful lives of intangibles					25 years
Jos. A. Bank | Preliminary valuation at August 2, 2014
Fair values of the identifiable assets acquired and liabilities assumed
Cash					328,900,000
Accounts receivable					7,100,000
Inventories					379,300,000
Other current assets					29,300,000
Property and equipment					174,800,000
Goodwill					744,700,000
Intangible assets					621,200,000
Accounts payable, accrued expenses and other current liabilities					(177,000,000)
Other liabilities					(288,000,000)
Total purchase price					1,820,300,000
Less: Cash acquired					(328,900,000)
Total purchase price, net of cash acquired					1,491,400,000
Jos. A. Bank | Measurement period adjustments
Fair values of the identifiable assets acquired and liabilities assumed
Accounts receivable					1,200,000
Inventories					(51,100,000)
Other current assets					36,600,000
Property and equipment					(6,000,000)
Goodwill					19,500,000
Intangible assets					1,000,000
Accounts payable, accrued expenses and other current liabilities					16,000,000
Other liabilities					(17,200,000)
Jos. A. Bank | Cost of sales
Acquisitions
Acquisition and integration costs	10,600,000		10,600,000
Jos. A. Bank | Senior unsecured notes
Acquisitions
Amount borrowed					600,000,000
Jos. A. Bank | 2014 Credit Facilities | Term loan facility
Acquisitions
Amount borrowed					1,100,000,000
JA Holding
Acquisitions
Acquisition and integration costs			3,700,000	6,700,000
Fair values of the identifiable assets acquired and liabilities assumed
Accounts receivable									12,800,000
Inventories									6,500,000
Other assets									3,100,000
Property and equipment									7,300,000
Goodwill									53,900,000
Intangible assets									30,000,000
Accounts payable, accrued expenses and other current liabilities									(7,200,000)
Other liabilities									(11,500,000)
Total purchase price									94,900,000
Total purchase price, net of cash acquired							94,900,000
JA Holding | Previous Credit Agreement | Term loan facility
Acquisitions
Amount borrowed							$ 100,000,000