CASH FLOW INFORMATION (Details) (USD $)	12 Months Ended
Dec. 28, 2014	Dec. 29, 2013	Dec. 30, 2012
Cash paid for interest and income taxes
Interest paid (net of amount capitalized)	$ 121,375,000us-gaap_InterestPaidNet	$ 127,257,000us-gaap_InterestPaidNet	$ 173,742,000us-gaap_InterestPaidNet
Income taxes paid (net of refunds)	77,622,000us-gaap_IncomeTaxesPaidNet	21,019,000us-gaap_IncomeTaxesPaidNet	37,137,000us-gaap_IncomeTaxesPaidNet
Accelerated interest paid as a result of refinance		30,000,000mni_AcceleratedInterestPaid
Non-cash transactions
Intangible asset - newswire content	3,100,000	500,000
Non-cash financing activities related to purchases of PP&E on credit	1,300,000	200,000	5,700,000
9.00% senior secured notes due in 2022
Cash paid for interest and income taxes
Interest rate (as a percent)	9.00%	9.00%	9.00%
Non-cash transactions
Non-cash financing activities related to financing costs of notes issuance			1,000,000
Sale of land and building
Non-cash transactions
Financing obligations released		238,100,000
Investing obligations released		$ 227,700,000

Represents the amount of accelerated interest paid during the period.

No definition available.

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- Definition

Represents the release of liabilities recorded by the entity related to financing obligations created by the entity's continuing involvement in properties sold or donated.

+ References

No definition available.

+ Details

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- Definition

Represents the release of liabilities recorded by the entity related to investing obligations created by the entity's continuing involvement in property, plant and equipment.

+ References

No definition available.

+ Details

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- Definition

Future cash outflow to pay for purchases of fixed assets that have occurred.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586

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-Name Accounting Standards Codification

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

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-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

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- Definition

Amount of debt issuance costs (for example, but not limited to, legal, accounting, broker, and regulatory fees).

+ References

No definition available.

+ Details

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- Definition

Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, resulting from a business combination.

+ 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

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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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