Restructuring and Other Related Charges (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring and other related charges	$ 10,378	$ 35,068	$ 40,914
Restructuring charges	10,378	35,068	27,897
Accrued restructuring and other related costs	300
Corporate / Inter-segment Eliminations
Restructuring Cost and Reserve [Line Items]
Restructuring and other related charges	1,779	5,712	$ 6,901
Severance and Employee-Related Costs
Restructuring Cost and Reserve [Line Items]
Restructuring and other related charges		21,200
Restructuring charges	5,921	30,752
Severance and Employee-Related Costs | Corporate / Inter-segment Eliminations
Restructuring Cost and Reserve [Line Items]
Restructuring and other related charges		5,200
Severance and Employee-Related Costs | Domestic Operations
Restructuring Cost and Reserve [Line Items]
Restructuring and other related charges		15,800
Severance and Employee-Related Costs | International and Other
Restructuring Cost and Reserve [Line Items]
Restructuring and other related charges		200
Other Restructuring
Restructuring Cost and Reserve [Line Items]
Restructuring and other related charges		13,900
Restructuring charges	4,457	4,316
Management Changes
Restructuring Cost and Reserve [Line Items]
Restructuring and other related charges	10,400
Management Changes | Severance and Employee-Related Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	4,300	26,000
Owned Subscription Streaming Services Restructuring | Severance and Employee-Related Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges		1,900
AMC Networks SVOD Organizational Changes | Other Restructuring
Restructuring Cost and Reserve [Line Items]
Restructuring charges		$ 13,000
A M C N I Reporting Unit | Management Changes
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 6,100