XML 110 R94.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Redeemable Noncontrolling Interests (Narrative) (Details) | Dec. 31, 2017
--- | ---
New Video (BBC AMERICA) [Member] |
Noncontrolling Interest [Line Items] |
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners | 50.10%

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_MinorityInterestLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity. + References No definition available. + Details
Name: | us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=amcx_NewVideoBBCAMERICAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |