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Related Party Transactions (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Related Party Transactions [Line Items]    
Net revenues from related parties $ 6,719us-gaap_RevenueFromRelatedParties $ 7,689us-gaap_RevenueFromRelatedParties
Related Party Transaction, Expenses from Transactions with Related Party $ 949us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty $ 659us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
Dolan Family [Member]    
Related Party Transactions [Line Items]    
Aggregate voting power held by related party 66.00%amcx_AggregateVotingPowerHeldByRelatedParty
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_MajorityShareholderMember
 
Dolan Family [Member] | Common Class B [Member]    
Related Party Transactions [Line Items]    
Percentage of common stock owned by related party 100.00%amcx_PercentageOfCommonStockOwnedByRelatedParty
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_MajorityShareholderMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassBMember
 
Maximum [Member] | Dolan Family [Member] | Common Class A [Member]    
Related Party Transactions [Line Items]    
Percentage of common stock owned by related party 2.00%amcx_PercentageOfCommonStockOwnedByRelatedParty
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_MajorityShareholderMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonClassAMember