Acquisitions (Details) (USD $)	9 Months Ended			0 Months Ended		3 Months Ended		4 Months Ended	9 Months Ended			3 Months Ended	9 Months Ended	0 Months Ended			0 Months Ended		0 Months Ended			3 Months Ended	9 Months Ended	0 Months Ended				0 Months Ended
	Nov. 01, 2014	Nov. 02, 2013	Feb. 01, 2014	Jun. 18, 2014 Previous Credit Agreement	Jun. 18, 2014 Jos. A. Bank item	Nov. 01, 2014 Jos. A. Bank	Nov. 02, 2013 Jos. A. Bank	Nov. 01, 2014 Jos. A. Bank	Nov. 01, 2014 Jos. A. Bank	Nov. 02, 2013 Jos. A. Bank	Jun. 18, 2014 Jos. A. Bank	Nov. 02, 2013 Jos. A. Bank Step up of inventory to fair value	Nov. 02, 2013 Jos. A. Bank Step up of inventory to fair value	Jun. 18, 2014 Jos. A. Bank Customer relationships	Jun. 18, 2014 Jos. A. Bank Customer relationships	Jun. 18, 2014 Jos. A. Bank Favorable lease	Jun. 18, 2014 Jos. A. Bank Franchise store agreements	Jun. 18, 2014 Jos. A. Bank Franchise store agreements	Jun. 18, 2014 Jos. A. Bank Preliminary valuation at August 2, 2014	Jun. 18, 2014 Jos. A. Bank Preliminary valuation at August 2, 2014	Jun. 18, 2014 Jos. A. Bank Measurement period adjustments	Nov. 01, 2014 Jos. A. Bank Cost of sales	Nov. 01, 2014 Jos. A. Bank Cost of sales	Jun. 18, 2014 Jos. A. Bank Senior Notes	Jun. 18, 2014 Jos. A. Bank Credit Facilities Term Loan	Aug. 06, 2013 JA Holding	Aug. 06, 2013 JA Holding	Aug. 06, 2013 JA Holding Previous Credit Agreement Term Loan
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						27,300,000			88,200,000													10,600,000	10,600,000
Loss on extinguishment of debt	2,158,000			2,200,000
Deferred financing costs											51,100,000
Deferred financing costs classified as other current assets	7,550,000										7,600,000
Deferred financing costs classified as non-current assets											43,500,000
Fair values of the identifiable assets acquired and liabilities assumed
Cash											328,900,000									328,900,000
Accounts receivable											8,700,000									7,100,000	1,600,000						12,800,000
Inventories											328,200,000									379,300,000	(51,100,000)						6,500,000
Other current assets											46,900,000									29,300,000	17,600,000
Other assets																											3,100,000
Property and equipment											169,300,000									174,800,000	(5,500,000)						7,300,000
Goodwill	892,766,000	128,597,000	126,003,000								764,600,000									744,700,000	19,900,000						53,900,000
Intangible assets											622,200,000									621,200,000	1,000,000						30,000,000
Accounts payable, accrued expenses and other current liabilities											(164,700,000)									(177,000,000)	12,300,000						(7,200,000)
Other liabilities											(283,800,000)									(288,000,000)	4,200,000						(11,500,000)
Total purchase price											1,820,300,000									1,820,300,000							94,900,000
Less: Cash acquired					(328,900,000)														(328,900,000)
Total purchase price, net of cash acquired	1,491,393,000	95,693,000			1,491,400,000														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															54,000,000	24,400,000		4,700,000
Estimated useful lives of intangibles														7 years			25 years
Net sales from acquisition date								347,000,000
Net loss from acquisition date								8,300,000
Integration costs								11,500,000
Purchase accounting adjustments								20,600,000
Unaudited pro forma consolidated financial information
Total net sales						890,636,000	896,358,000		2,668,460,000	2,588,733,000
Net earnings attributable to common shareholders						$ 28,133,000	$ 26,679,000		$ 90,978,000	$ 76,749,000		$ 14,000,000	$ 32,100,000
Net earnings per common share attributable to common shareholders:
Basic (in dollars per share)						$ 0.58	$ 0.56		$ 1.94	$ 1.55
Diluted (in dollars per share)						$ 0.58	$ 0.55		$ 1.92	$ 1.54