Name:	mni_MinimumPercentageOfCommonStockAfterConversionForFreeTransferOfShares
Namespace Prefix:	mni_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Represents the number of classes of stock.

No definition available.

Name:	mni_NumberOfClassesOfStock
Namespace Prefix:	mni_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Represents the minimum number of permitted transferees who are descendants of the leading founders of the company.

No definition available.

Name:	mni_NumberOfLinealDesecnedantsPermittedTransfereesMinimum
Namespace Prefix:	mni_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Represents the number of votes to which the holders of common stock are entitled for each share held.

No definition available.

Name:	mni_NumberOfVotesPerCommonShareHeld
Namespace Prefix:	mni_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

Represents the percentage of Board of Directors selected from voting.

No definition available.

Name:	mni_PercentageOfBoardOfDirectorsSelectedFromVoting
Namespace Prefix:	mni_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Represents the minimum permitted transferees subject to restriction.

No definition available.

Name:	mni_RestictionNumberOfPermittedTransfereesMinimum
Namespace Prefix:	mni_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Represents the vote of the holders as a percentage of outstanding shares required for termination of the agreement.

No definition available.