Segment Information (Summary of Continuing Operations by Reportable Segment) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Segment Reporting Information [Line Items]
Revenues, net	$ 712,157,000	$ 691,741,000
Operating income	174,677,000	169,708,000
Share-based compensation expenses	8,129,000	13,446,000
Depreciation and amortization	22,590,000	25,246,000
Restructuring and other related charges	0	8,625,000
Impairment and other charges	0	16,055,000
Cloud computing amortization	907,000	264,000
Majority-owned equity investees AOI	4,881,000	4,635,000
Adjusted operating income (loss)	211,184,000	237,979,000
Operating segments | Domestic Operations
Segment Reporting Information [Line Items]
Revenues, net	605,543,000	573,969,000
Operating income	198,522,000	216,459,000
Share-based compensation expenses	3,673,000	5,639,000
Depreciation and amortization	12,136,000	13,373,000
Restructuring and other related charges		2,427,000
Impairment and other charges		0
Cloud computing amortization	7,000	0
Majority-owned equity investees AOI	4,881,000	4,635,000
Adjusted operating income (loss)	219,219,000	242,533,000
Operating segments | International & Other
Segment Reporting Information [Line Items]
Revenues, net	109,851,000	121,167,000
Operating income	17,355,000	(3,162,000)
Share-based compensation expenses	754,000	1,231,000
Depreciation and amortization	4,903,000	4,949,000
Restructuring and other related charges		4,490,000
Impairment and other charges		16,055,000
Cloud computing amortization	0	0
Majority-owned equity investees AOI	0	0
Adjusted operating income (loss)	23,012,000	23,563,000
Corporate / Inter-segment Eliminations
Segment Reporting Information [Line Items]
Revenues, net	(3,237,000)	(3,395,000)
Operating income	(41,200,000)	(43,589,000)
Share-based compensation expenses	3,702,000	6,576,000
Depreciation and amortization	5,551,000	6,924,000
Restructuring and other related charges		1,708,000
Impairment and other charges		0
Cloud computing amortization	900,000	264,000
Majority-owned equity investees AOI	0	0
Adjusted operating income (loss)	(31,047,000)	(28,117,000)
Corporate / Inter-segment Eliminations | Domestic Operations
Segment Reporting Information [Line Items]
Revenues, net	(3,002,000)	(670,000)
Corporate / Inter-segment Eliminations | International & Other
Segment Reporting Information [Line Items]
Revenues, net	(235,000)	(2,725,000)
Subscription
Segment Reporting Information [Line Items]
Revenues, net	404,160,000	381,860,000
Subscription | Operating segments | Domestic Operations
Segment Reporting Information [Line Items]
Revenues, net	343,748,000	318,832,000
Subscription | Operating segments | International & Other
Segment Reporting Information [Line Items]
Revenues, net	60,412,000	63,028,000
Subscription | Corporate / Inter-segment Eliminations
Segment Reporting Information [Line Items]
Revenues, net	0	0
Content licensing and other
Segment Reporting Information [Line Items]
Revenues, net	85,071,000	89,168,000
Content licensing and other | Operating segments | Domestic Operations
Segment Reporting Information [Line Items]
Revenues, net	61,254,000	55,995,000
Content licensing and other | Operating segments | International & Other
Segment Reporting Information [Line Items]
Revenues, net	27,054,000	36,568,000
Content licensing and other | Corporate / Inter-segment Eliminations
Segment Reporting Information [Line Items]
Revenues, net	(3,237,000)	(3,395,000)
Distribution and other
Segment Reporting Information [Line Items]
Revenues, net	489,231,000	471,028,000
Distribution and other | Operating segments | Domestic Operations
Segment Reporting Information [Line Items]
Revenues, net	405,002,000	374,827,000
Distribution and other | Operating segments | International & Other
Segment Reporting Information [Line Items]
Revenues, net	87,466,000	99,596,000
Distribution and other | Corporate / Inter-segment Eliminations
Segment Reporting Information [Line Items]
Revenues, net	(3,237,000)	(3,395,000)
Advertising
Segment Reporting Information [Line Items]
Revenues, net	222,926,000	220,713,000
Advertising | Operating segments | Domestic Operations
Segment Reporting Information [Line Items]
Revenues, net	200,541,000	199,142,000
Advertising | Operating segments | International & Other
Segment Reporting Information [Line Items]
Revenues, net	22,385,000	21,571,000
Advertising | Corporate / Inter-segment Eliminations
Segment Reporting Information [Line Items]
Revenues, net	$ 0	$ 0