Name:	mni_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsAndSARsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1
Namespace Prefix:	mni_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	mni_ShareBasedCompensationSharesAuthorizedUnderStockOptionAndSARsExercisePriceRangeExercisableOptionsAbstract
Namespace Prefix:	mni_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Represents the weighted average exercise price of stock option and stock appreciation rights, as of the balance sheet date, for those equity-based payment arrangements exercisable and outstanding.

No definition available.

Name:	mni_SharebasedCompensationSharesAuthorizedUnderStockOptionAndSARsExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1
Namespace Prefix:	mni_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

Represents the floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option and stock appreciation rights and other required information pertaining to awards in the customized range.

No definition available.

Name:	mni_ShareBasedCompensationSharesAuthorizedUnderStockOptionAndSARsExercisePriceRangeLowerRangeLimit
Namespace Prefix:	mni_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

Represents the number of shares reserved for issuance pertaining to the outstanding exercisable stock options and stock appreciation rights, as of the balance sheet date, in the customized range of exercise prices for which the market and performance vesting condition has been satisfied.

No definition available.

Name:	mni_ShareBasedCompensationSharesAuthorizedUnderStockOptionAndSARsExercisePriceRangeNumberOfExercisableOptions
Namespace Prefix:	mni_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

Represents the number of shares reserved for issuance pertaining to the outstanding stock options and stock appreciation rights, as of the balance sheet date, for all option plans in the customized range of exercise prices.

No definition available.

Name:	mni_ShareBasedCompensationSharesAuthorizedUnderStockOptionAndSARsExercisePriceRangeNumberOfOutstandingOptions
Namespace Prefix:	mni_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	mni_ShareBasedCompensationSharesAuthorizedUnderStockOptionAndSARsExercisePriceRangeOutstandingOptionsAbstract
Namespace Prefix:	mni_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Represents the weighted average price, as of the balance sheet date, at which grantees could acquire the underlying shares with respect to all outstanding stock options and stock appreciation rights which are in the customized range of exercise prices.

No definition available.

Name:	mni_ShareBasedCompensationSharesAuthorizedUnderStockOptionAndSARsExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1
Namespace Prefix:	mni_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

Represents the weighted average remaining contractual term of outstanding stock options and stock appreciation rights, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

Name:	mni_ShareBasedCompensationSharesAuthorizedUnderStockOptionAndSARsExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm1
Namespace Prefix:	mni_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Represents the cap of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option and stock appreciation rights and other required information pertaining to awards in the customized range.

No definition available.

Name:	mni_ShareBasedCompensationSharesAuthorizedUnderStockOptionAndSARsExercisePriceRangeUpperRangeLimit
Namespace Prefix:	mni_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

Weighted average remaining contractual term of exercisable stock options and stock appreciation rights, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.