Program Rights and Obligations (Expected Amortization of Owned and Licensed Program Rights) (Details) $ in Thousands	Dec. 31, 2025 USD ($)
Predominantly Monetized Individually
2026	$ 21,597
2027	20,885
2028	1,776
Predominantly Monetized as a Group
2026	312,315
2027	169,671
2028	79,637
Predominantly Monetized as a Group
2026	374,771
2027	198,632
2028	$ 111,254

Entertainment, License Agreement Film, Monetized in Film Group, Released Film Expected Amortization

No definition available.

Name:	amcx_EntertainmentLicenseAgreementFilmMonetizedInFilmGroupReleasedFilmExpectedAmortizationAbstract
Namespace Prefix:	amcx_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Entertainment, License Agreement Film, Monetized in Film Group, Released Film, Expected Amortization, Year One

+ References

No definition available.

+ Details

Name:	amcx_EntertainmentLicenseAgreementFilmMonetizedInFilmGroupReleasedFilmExpectedAmortizationYearOne
Namespace Prefix:	amcx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Entertainment, License Agreement Film, Monetized in Film Group, Released Film, Expected Amortization, Year Three

+ References

No definition available.

+ Details

Name:	amcx_EntertainmentLicenseAgreementFilmMonetizedInFilmGroupReleasedFilmExpectedAmortizationYearThree
Namespace Prefix:	amcx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Entertainment, License Agreement Film, Monetized in Film Group, Released Film, Expected Amortization, Year Two

+ References

No definition available.

+ Details

Name:	amcx_EntertainmentLicenseAgreementFilmMonetizedInFilmGroupReleasedFilmExpectedAmortizationYearTwo
Namespace Prefix:	amcx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- References

No definition available.

+ Details

Name:	us-gaap_FilmMonetizedInFilmGroupReleasedFilmExpectedAmortizationAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of amortization for released film predominantly monetized with other films and license agreements and expected to be recognized within first operating cycle following most recent annual statement of financial position.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 926
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4B
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483154/926-20-50-4B

+ Details

Name:	us-gaap_FilmMonetizedInFilmGroupReleasedFilmExpectedAmortizationYearOne
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of amortization for released film predominantly monetized with other films and license agreements and expected to be recognized within third operating cycle following most recent annual statement of financial position.

+ References

+ Details

Name:	us-gaap_FilmMonetizedInFilmGroupReleasedFilmExpectedAmortizationYearThree
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of amortization for released film predominantly monetized with other films and license agreements and expected to be recognized within second operating cycle following most recent annual statement of financial position.

+ References

+ Details

Name:	us-gaap_FilmMonetizedInFilmGroupReleasedFilmExpectedAmortizationYearTwo
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- References

No definition available.

+ Details

Name:	us-gaap_FilmMonetizedOnItsOwnReleasedFilmExpectedAmortizationAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of amortization for released film predominantly monetized on its own and expected to be recognized within first operating cycle following most recent annual statement of financial position.

+ References

+ Details

Name:	us-gaap_FilmMonetizedOnItsOwnReleasedFilmExpectedAmortizationYearOne
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of amortization for released film predominantly monetized on its own and expected to be recognized within third operating cycle following most recent annual statement of financial position.

+ References

+ Details

Name:	us-gaap_FilmMonetizedOnItsOwnReleasedFilmExpectedAmortizationYearThree
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of amortization for released film predominantly monetized on its own and expected to be recognized within second operating cycle following most recent annual statement of financial position.

+ References

+ Details

Name:	us-gaap_FilmMonetizedOnItsOwnReleasedFilmExpectedAmortizationYearTwo
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant