Subsequent Event (Details) (Subsequent event, Jos A Bank Clothiers Inc [Member], Forecast, USD $) In Billions, except Per Share data, unless otherwise specified	0 Months Ended
Nov. 26, 2013
Subsequent event \| Jos A Bank Clothiers Inc [Member] \| Forecast
Subsequent events
Share price (in dollars per share)	$ 55.00
Enterprise value	$ 1.2

The estimated value of a business to be acquired as indicated by the price per share of saleable stock offered to be paid, multiplied by the current shares outstanding of the acquiree.

No definition available.

Name:	mw_BusinessAcquisitionEstimatedValue
Namespace Prefix:	mw_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration