Document and Entity Information (USD $)	12 Months Ended
	Dec. 31, 2014	Jun. 30, 2014	Mar. 04, 2015
Entity Information [Line Items]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2014
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2014
Trading Symbol	MSO
Entity Registrant Name	MARTHA STEWART LIVING OMNIMEDIA INC
Entity Central Index Key	0001091801
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Well-known Seasoned Issuer	No
Entity Public Float		$ 142,197,246
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Class A Common Stock
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding			32,236,549
Class B Common Stock
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding			24,984,625