Income Taxes - Components of Net Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Broadcast rights	$ 78,531	$ 86,451
Postretirement benefits other than pensions	3,467	3,933
Stock-based compensation and other employee benefits	20,261	16,011
Pensions	175,766	180,342
Other accrued liabilities	15,518	16,482
Other future deductible items	16,638	17,877
Net operating loss carryforwards	1,582	1,807
Accounts receivable	4,902	2,173
Total deferred tax assets	316,665	325,076
Net intangible assets	564,405	565,600
Investments	399,103	418,908
Deferred gain on partnership contributions	157,567	164,322
Net properties	112,864	60,048
Outside basis difference on Gracenote Companies	63,403	1,097
Other	3,571	5,807
Total deferred tax liabilities	1,300,913	1,215,782
Net deferred tax liabilities	$ 984,248	$ 890,706