Document and Entity Information	3 Months Ended
	May 04, 2013	May 21, 2013
Document and Entity Information
Entity Registrant Name	MICHAELS STORES INC
Entity Central Index Key	0000740670
Document Type	10-Q/A
Document Period End Date	May 04, 2013
Amendment Flag	true
Amendment Description	Michaels Stores, Inc. ("Company") is filing this Amendment No. 1 ("Form 10-Q/A") to its Quarterly Report on Form 10-Q for the quarter ended May 4, 2013, filed with the Securities and Exchange Commission ("SEC") on May 24, 2013 (the "Form 10-Q"), for the purpose of correcting historical share-based compensation expense caused by the Company's repurchase of shares that had not been held for at least six months following the exercise of stock options under its equity incentive plans. Since the participants held such shares for less than six months following exercise ("immature shares"), liability accounting applies to the plan. The Company has determined its previously issued unaudited interim consolidated financial statements for the three month periods ended May 4, 2013 and April 28, 2012 contained an error with respect to ASC 718, Compensation - Stock Compensation. Specifically, former participants in the Company's Equity Incentive Plan and its successor Plan (The Michaels Companies, Inc.("Parent") Equity Incentive Plan, together the "Plan") exercised stock options upon their termination from the Company, and the Company repurchased the immature shares. The Company consistently repurchased shares in this manner and therefore, under accounting rules, established a pattern of repurchasing immature shares during the third quarter of 2011. The Company determined all stock options should have been treated as liability awards in accordance with the rules of ASC 718-10-25-9. Under liability accounting, the Company re-measures the fair value of stock compensation each period and recognizes changes in fair value as awards vest and until the award is settled. The Company originally recognized expense ratably over the vesting period based on the grant date fair value of the option in accordance with the fixed method of accounting. The Company determined the accounting error was material to fiscal 2011 and fiscal 2012 financial statements and those financial statements required restatement. As a result, the Company is also restating its financial statements for the three months ended May 4, 2013 and April 28, 2012. The non-cash impact to share-based compensation cost for the three months ended May 4, 2013 and April 28, 2012, was $5 million ($3, net of tax) million and $3 million ($1, net of tax) million, respectively. As part of the restatement, the Company also recorded other adjustments related to merchandise inventories and the reserve for closed facilities which were previously determined to be immaterial to the respective periods. In total, the adjustments resulted in a decline of net income by $1 million for the three months ended May 4, 2013, and $2 million for the three months ended April 28, 2012.
Current Fiscal Year End Date	--02-01
Entity Current Reporting Status	Yes
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		118,687,391
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q1