Name:	newm_AttritionRatesDefiniteLivedIntangiblesHighRange
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Period Type:	duration

Attrition rate low range for definite lived intangibles. Attrition rate is a measure of the number of individuals or items moving out of a collective over a specific period of time.

No definition available.

Name:	newm_AttritionRatesDefiniteLivedIntangiblesLowRange
Namespace Prefix:	newm_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Purchase price, including working capital

No definition available.

Name:	newm_BusinessAcquisitionCostsOfAcquiredEntityPurchasePrice
Namespace Prefix:	newm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Business Acquisition, Goodwill, Net Tax Basis

No definition available.

Name:	newm_BusinessAcquisitionGoodwillNetTaxBasis
Namespace Prefix:	newm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Business Acquisition, Goodwill, Tax Cost Basis

No definition available.

Name:	newm_BusinessAcquisitionGoodwillTaxCostBasis
Namespace Prefix:	newm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- References

No definition available.

Name:	newm_BusinessCombinationsLineItems
Namespace Prefix:	newm_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Number of daily publications the reporting entity acquired in the business combination.

No definition available.

Name:	newm_DailyPublicationsAcquired
Namespace Prefix:	newm_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Debt fee percent

No definition available.

Name:	newm_DebtFeePercent
Namespace Prefix:	newm_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Debt issued by an the reporting entity for an acquisition from the revolving credit facility.

No definition available.

Name:	newm_DebtIssuedforAcquisitionRevolvingDebt
Namespace Prefix:	newm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Debt issued by an entity for an acquisition.

No definition available.

Name:	newm_Debtissuedforanacquisition
Namespace Prefix:	newm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The maximum useful life of definite lived intangle assets used in the normal conduct of business and not intended for resale.

No definition available.

Name:	newm_DefiniteLivedIntangiblesUsefulLifeMaximum
Namespace Prefix:	newm_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

The minimum useful life of the definite lived intangible assets used in the normal conduct of business and not intended for resale.

No definition available.

Name:	newm_DefiniteLivedIntangiblesUsefulLifeMinimum
Namespace Prefix:	newm_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Interest rate used to find the present value of an amount to be paid or received in the future, licensing agreement.

No definition available.

Name:	newm_DiscountRateLicensingAgreement
Namespace Prefix:	newm_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Interest rate used to find the present value of an amount to be paid or received in the future, definite lived intangibles.

No definition available.

Name:	newm_DiscountRatesDefiniteLivedIntangibles
Namespace Prefix:	newm_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Royalty rate used as an input to measure fair value.

No definition available.

Name:	newm_FairValueInputsRoyaltyRate
Namespace Prefix:	newm_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Tax rate used as an input to measure fair value.

No definition available.

Name:	newm_FairValueInputsTaxRate
Namespace Prefix:	newm_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Annual payment required under the licensing agreement.

No definition available.

Name:	newm_LicensingAgreementAnnualPayment
Namespace Prefix:	newm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Licensing agreements useful life, in years.

No definition available.

Name:	newm_Licensingagreementsusefullifeinyears
Namespace Prefix:	newm_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Percentage of assumed long-term growth of definite lived intangibles.

No definition available.

Name:	newm_LongTermGrowthRateDefiniteLivedIntangibles
Namespace Prefix:	newm_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Number of Business Publications Acquired

No definition available.

Name:	newm_NumberofBusinessPublicationsAcquired
Namespace Prefix:	newm_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Number of Daily Circulations Acquired

No definition available.

Name:	newm_NumberofDailyCirculationsAcquired
Namespace Prefix:	newm_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Number of Weekly Publications Acquired

No definition available.

Name:	newm_NumberofWeeklyPublicationsAcquired
Namespace Prefix:	newm_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

The maximum useful life of personal property used in the normal conduct of business and not intended for resale.

No definition available.

Name:	newm_PersonalPropertyUsefulLifeMaximum
Namespace Prefix:	newm_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

The minimum useful life of personal property used in the normal conduct of business and not intended for resale.

No definition available.

Name:	newm_PersonalPropertyUsefulLifeMinimum
Namespace Prefix:	newm_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Portion of the purchase price that is held in escrow.

No definition available.

Name:	newm_PurchasePriceHeldInEscrow
Namespace Prefix:	newm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The maximum useful life of real property used in the normal conduct of business and not intended for resale.

No definition available.

Name:	newm_RealPropertyUsefulLifeMaximum
Namespace Prefix:	newm_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

The minimum useful life of real property used in the normal conduct of business and not intended for resale.

No definition available.

Name:	newm_RealPropertyUsefulLifeMinimum
Namespace Prefix:	newm_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Number of shoppers the reporting entity acquired in the business combination.

No definition available.

Name:	newm_ShoppersAcquired
Namespace Prefix:	newm_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Tax rate used as an input to measure fair value of the licensing agreements.

No definition available.

Name:	newm_TaxRateLicensingAgreement
Namespace Prefix:	newm_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Total daily circulation from acquired entity.

No definition available.

Name:	newm_TotalDailyCirculation
Namespace Prefix:	newm_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Total sunday circulation from acquired entity.

No definition available.

Name:	newm_TotalSundayCirculation
Namespace Prefix:	newm_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Number of weekly publications the reporting entity acquired in the business combination.

No definition available.

Name:	newm_WeeklyPublicationsAcquired
Namespace Prefix:	newm_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Adjustment to the working capital paid.

No definition available.

Name:	newm_WorkingCapitalAdjustment
Namespace Prefix:	newm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

For receivables acquired in a business combination, excluding certain loans and debt securities acquired in a transfer (as defined), this element represents the best estimate at the acquisition date of the contractual cash flows not expected to be collected, by major class of receivable, such as loans, direct finance leases (as defined), and any other class of receivables.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

For receivables acquired in a business combination, excluding certain loans and debt securities acquired in a transfer (as defined), this element represents the fair value of the receivables acquired, by major class of receivable, such as loans, direct finance leases (as defined), and any other class of receivables.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Subparagraph (b)(1)
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Data Type:	xbrli:monetaryItemType
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For receivables acquired in a business combination, excluding certain loans and debt securities acquired in a transfer (as defined), this element represents the gross contractual amounts receivable, by major class of receivable, such as loans, direct finance leases (as defined), and any other class of receivables.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-Topic 805
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Data Type:	xbrli:monetaryItemType
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Period Type:	duration

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
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-Paragraph 7
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-Publisher FASB
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 30
-Section 30
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477

Name:	us-gaap_BusinessCombinationConsiderationTransferred1
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Data Type:	xbrli:monetaryItemType
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Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
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-Paragraph 2
-Subparagraph (bbb)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

Name:	us-gaap_FairValueInputsDiscountRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Percentage of assumed long-term growth in revenues, used as an input to measure fair value.

Name:	us-gaap_FairValueInputsLongTermRevenueGrowthRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Name:	newm_BusinessCombinationsAxis=newm_StephensMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	newm_BusinessCombinationsAxis=newm_HalifaxMediaGroupMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	newm_BusinessCombinationsAxis=newm_AdditionalAcquisitionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: