Cover Page - USD ($) $ in Billions	12 Months Ended
	Dec. 31, 2021	Feb. 09, 2022	Jun. 30, 2021
Entity Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2021
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	1-35106
Entity Registrant Name	AMC Networks Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	27-5403694
Entity Address, Address Line One	11 Penn Plaza
Entity Address, City or Town	New York
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10001
City Area Code	212
Local Phone Number	324-8500
Title of 12(b) Security	Class A Common Stock, par value $0.01 per share
Trading Symbol	AMCX
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 1.9
Documents Incorporated by Reference	Certain information required in Item 10 through Item 14 of Part III of this Annual Report on Form 10-K is incorporated herein by reference to the Registrant's definitive Proxy Statement for its 2022 Annual Meeting of Stockholders, which shall be filed with the Securities and Exchange Commission pursuant to Regulation 14A of the Securities Exchange Act of 1934, as amended, within 120 days of the Registrant's fiscal year end.
Entity Central Index Key	0001514991
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Amendment Flag	false
Class A  Common Stock
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		30,891,692
Class B  Common Stock
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		11,484,408