Acquisitions (Details) (USD $)	3 Months Ended	6 Months Ended			0 Months Ended		1 Months Ended	3 Months Ended		6 Months Ended		3 Months Ended	6 Months Ended	0 Months Ended		0 Months Ended
	Aug. 02, 2014	Aug. 02, 2014	Feb. 01, 2014	Aug. 03, 2013	Jun. 18, 2014 Previous Credit Agreement	Jun. 18, 2014 Jos. A. Bank item	Aug. 02, 2014 Jos. A. Bank	Aug. 02, 2014 Jos. A. Bank	Aug. 03, 2013 Jos. A. Bank	Aug. 02, 2014 Jos. A. Bank	Aug. 03, 2013 Jos. A. Bank	Aug. 03, 2013 Jos. A. Bank Step up of inventory to fair value	Aug. 03, 2013 Jos. A. Bank Step up of inventory to fair value	Jun. 18, 2014 Jos. A. Bank Customer relationship	Jun. 18, 2014 Jos. A. Bank Favorable lease	Jun. 18, 2014 Jos. A. Bank Franchise store agreements	Jun. 18, 2014 Jos. A. Bank Senior unsecured notes	Jun. 18, 2014 Jos. A. Bank 2014 Credit Facilities Term loan facility	Aug. 06, 2013 JA Holding	Aug. 06, 2013 JA Holding Previous Credit Agreement Term loan facility
Acquisitions
Cash consideration per share (in dollars per share)						$ 65.00
Total consideration						$ 1,800,000,000
Amount borrowed																	600,000,000	1,100,000,000		100,000,000
Acquisition and integration costs								40,800,000		60,900,000
Loss on extinguishment of debt	2,158,000	2,158,000			2,200,000
Deferred financing costs						50,900,000
Deferred financing costs classified as other current assets	7,502,000	7,502,000				7,500,000
Deferred financing costs classified as non-current assets						43,400,000
Preliminary estimates of the fair values of the identifiable assets acquired and liabilities assumed
Cash						328,900,000
Accounts receivable						7,100,000													12,800,000
Inventories						379,300,000													6,500,000
Other current assets						29,300,000
Other assets																			3,100,000
Property and equipment						174,800,000													7,300,000
Goodwill	874,955,000	874,955,000	126,003,000	76,510,000		744,700,000													53,900,000
Intangible assets						621,200,000													30,000,000
Accounts payable, accrued expenses and other current liabilities						(177,000,000)													(7,200,000)
Other liabilities						(288,000,000)													(11,500,000)
Total purchase price						1,820,300,000													94,900,000
Less: Cash acquired						(328,900,000)
Total purchase price, net of cash acquired		1,491,393,000				1,491,400,000													94,900,000
Number of separately identified intangible assets acquired						4
Fair value of trade name						539,100,000
Intangibles assets														53,000,000	24,400,000	4,700,000
Estimated useful lives of intangibles														7 years		25 years
Net sales from acquisition date							113,700,000
Net loss from acquisition date							4,100,000
Integration costs							2,600,000
Purchase accounting adjustments							7,700,000
Unaudited pro forma consolidated financial information
Total net sales								929,928,000	879,784,000	1,777,824,000	1,692,375,000
Net earnings attributable to common shareholders								$ 44,180,000	$ 32,282,000	$ 64,270,000	$ 48,534,000	$ 10,500,000	$ 20,300,000
Net earnings per common share attributable to common shareholders:
Basic (in dollars per share)								$ 0.92	$ 0.65	$ 1.34	$ 0.96
Diluted (in dollars per share)								$ 0.92	$ 0.64	$ 1.33	$ 0.96