Disposal Group, Amounts of Material Contingent Liabilities Remaining

No definition available.

Name:	mso_DisposalGroupAmountsOfMaterialContingentLiabilitiesRemaining
Namespace Prefix:	mso_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Disposal Group, Including Discontinued Operation, Broker Fees and Other Costs

+ References

No definition available.

+ Details

Name:	mso_DisposalGroupIncludingDiscontinuedOperationBrokerFeesAndOtherCosts
Namespace Prefix:	mso_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Disposal Group, Including Discontinued Operation, Cash Received from Sale

+ References

No definition available.

+ Details

Name:	mso_DisposalGroupIncludingDiscontinuedOperationCashReceivedFromSale
Namespace Prefix:	mso_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Disposal Group, Including Discontinued Operation, Deferred Revenue Recorded in Operations

+ References

No definition available.

+ Details

Name:	mso_DisposalGroupIncludingDiscontinuedOperationDeferredRevenueRecordedInOperations
Namespace Prefix:	mso_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Disposal Group, Including Discontinued Operation, Sale Price

+ References

No definition available.

+ Details

Name:	mso_DisposalGroupIncludingDiscontinuedOperationSalePrice
Namespace Prefix:	mso_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The excess or deficiency of net proceeds from sale in the period compared to carrying value of intangible assets as of consummation date of the sale.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.7,9)

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Concepts (CON)

-Number 6

-Paragraph 82, 83, 87

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Name:	us-gaap_GainLossOnDispositionOfIntangibleAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Gain on Sale of Subscriber List, net (Details) (USD $)	3 Months Ended
Gain on Sale of Subscriber List, net (Details) (USD $)	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013 Whole Living Magazine [Member]	Jan. 02, 2013 Whole Living Magazine [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sale price				$ 1,000,000
Amount of contingent liability related to customer refunds				100,000
Cash received from sale				900,000
Deferred revenue recorded in operations as a result of sale			2,100,000
Gain on sale of subscriber list, net	2,689,000	0	2,689,000
Broker fees and other costs			$ 400,000