Acquisitions and Dispositions - Schedule of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands				8 Months Ended	12 Months Ended
	Feb. 13, 2015	Jun. 16, 2014	Jun. 10, 2014	Feb. 13, 2015	Feb. 28, 2015
Business Acquisition [Line Items]
Goodwill, Acquired During Period					$ 61,148
Digonex
Business Acquisition [Line Items]
Cash		$ 456
Cash Acquired from Acquisition		(456)
Other current and noncurrent assets		9
Goodwill, Acquired During Period		2,753
Other intangibles			$ 6,180
Payments to Acquire Businesses, Net of Cash Acquired		2,544
Accounts payable and accrued liabilities		(462)
Other current liabilities and noncurrent liabilities		(1,139)
Long-term debt		(3,600)
Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value		(1,197)
Cash paid		$ 3,000
WBLS-FM and WLIB-AM
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other			37
Property and equipment			4,054
Indefinite-lived intangibles			69,019
Goodwill, Acquired During Period			58,395
Other intangibles			2,469
Other current liabilities			(512)
Payments to Acquire Businesses, Net of Cash Acquired	$ 76,000		55,000	$ 81,563	133,462
Total payments to acquire a business including interest on the accretion of discounted liabilities					$ 136,563
Payments of interest expense related o accretion of acquisition liabilities				$ (3,101)
Cash paid			$ 55,000