Goodwill and Other Intangible Assets (Summary Of Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified
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12 Months Ended |
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Dec. 31, 2014
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Dec. 31, 2013
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Finite-Lived Intangible Assets [Line Items] |
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Finite-Lived Intangible Assets, Gross |
$ 654,283us-gaap_FiniteLivedIntangibleAssetsGross |
$ 244,244us-gaap_FiniteLivedIntangibleAssetsGross |
Finite-Lived Intangible Assets, Accumulated Amortization |
(83,359)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization |
(54,592)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization |
Finite-Lived Intangible Assets, Net |
570,924us-gaap_FiniteLivedIntangibleAssetsNet |
189,652us-gaap_FiniteLivedIntangibleAssetsNet |
Indefinite-Lived Trademarks |
19,900us-gaap_IndefiniteLivedTrademarks |
19,900us-gaap_IndefiniteLivedTrademarks |
Intangible Assets, Gross (Excluding Goodwill) |
674,183us-gaap_IntangibleAssetsGrossExcludingGoodwill |
264,144us-gaap_IntangibleAssetsGrossExcludingGoodwill |
Total intangible assets |
590,824us-gaap_IntangibleAssetsNetExcludingGoodwill |
209,552us-gaap_IntangibleAssetsNetExcludingGoodwill |
Affiliate and Customer Relationships [Member] |
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Finite-Lived Intangible Assets [Line Items] |
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Finite-Lived Intangible Assets, Gross |
555,742us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = amcx_AffiliateandCustomerRelationshipsMember |
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Finite-Lived Intangible Assets, Accumulated Amortization |
(80,351)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = amcx_AffiliateandCustomerRelationshipsMember |
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Finite-Lived Intangible Assets, Net |
475,391us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = amcx_AffiliateandCustomerRelationshipsMember |
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Advertiser Relationships [Member] |
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Finite-Lived Intangible Assets [Line Items] |
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Finite-Lived Intangible Assets, Gross |
45,827us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = amcx_AdvertiserRelationshipsMember |
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Finite-Lived Intangible Assets, Accumulated Amortization |
(655)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = amcx_AdvertiserRelationshipsMember |
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Finite-Lived Intangible Assets, Net |
45,172us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = amcx_AdvertiserRelationshipsMember |
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Finite-Lived Intangible Asset, Useful Life |
11 years |
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Trade Names [Member] |
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Finite-Lived Intangible Assets [Line Items] |
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Finite-Lived Intangible Assets, Gross |
52,698us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TradeNamesMember |
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Finite-Lived Intangible Assets, Accumulated Amortization |
(2,351)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TradeNamesMember |
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Finite-Lived Intangible Assets, Net |
50,347us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TradeNamesMember |
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Finite-Lived Intangible Asset, Useful Life |
20 years |
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Other Intangible Assets [Member] |
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Finite-Lived Intangible Assets [Line Items] |
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Finite-Lived Intangible Assets, Gross |
16us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OtherIntangibleAssetsMember |
644us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OtherIntangibleAssetsMember |
Finite-Lived Intangible Assets, Accumulated Amortization |
(2)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OtherIntangibleAssetsMember |
(621)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OtherIntangibleAssetsMember |
Finite-Lived Intangible Assets, Net |
14us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OtherIntangibleAssetsMember |
23us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OtherIntangibleAssetsMember |
Affiliate Relationships [Member] |
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Finite-Lived Intangible Assets [Line Items] |
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Finite-Lived Intangible Assets, Gross |
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243,600us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = amcx_AffiliateRelationshipsMember |
Finite-Lived Intangible Assets, Accumulated Amortization |
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(53,971)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = amcx_AffiliateRelationshipsMember |
Finite-Lived Intangible Assets, Net |
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$ 189,629us-gaap_FiniteLivedIntangibleAssetsNet / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = amcx_AffiliateRelationshipsMember |
Minimum [Member] | Affiliate and Customer Relationships [Member] |
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Finite-Lived Intangible Assets [Line Items] |
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Finite-Lived Intangible Asset, Useful Life |
17 years |
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Maximum [Member] | Affiliate and Customer Relationships [Member] |
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Finite-Lived Intangible Assets [Line Items] |
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Finite-Lived Intangible Asset, Useful Life |
25 years |
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