SIGNIFICANT ACCOUNTING POLICIES - Cash Flow (Details) - USD ($) $ in Thousands	6 Months Ended
Jun. 25, 2017	Jun. 26, 2016
Cash Flow Information
Interest paid (net of amount capitalized)	$ 35,127	$ 36,936
Income taxes paid (net of refunds)	$ 8,870	(4,689)
Other non-cash financing activities
Increase of financing obligation for contribution of real property to pension plan		47,130
Reduction of pension obligation for contribution of real property to pension plan		$ (47,130)

Represents the value of a financing obligation as a contribution of real property to a pension plan.

No definition available.

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Period Type:	duration

- Definition

Non-cash activity which represents the reduction of pension obligation for contribution of real property to pension plan.

+ References

No definition available.

+ Details

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Namespace Prefix:	mni_
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Balance Type:	debit
Period Type:	duration

- References

No definition available.

+ Details

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- Definition

The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4297-108586

+ Details

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- Definition

The amount of cash paid for interest during the period net of cash paid for interest that is capitalized.

+ References

+ Details

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- References

No definition available.

+ Details

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