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The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of assets acquired at the acquisition date.

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Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date.

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Amount of liabilities incurred for goods and services received that are used in an entity's business and related party payables, assumed at the acquisition date.

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The amount of identifiable intangible assets recognized as of the acquisition date.

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Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of obligations related to rights to programming, including, but not limited to, feature films and episodic series, acquired under license agreements that will be paid within the next twelve months.

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Acquisitions (Details) $ / shares in Units, $ in Thousands					3 Months Ended		9 Months Ended
Acquisitions (Details) $ / shares in Units, $ in Thousands	Oct. 27, 2018 USD ($) television_station	Oct. 16, 2018 USD ($)	Aug. 20, 2018 USD ($) television_station	Oct. 02, 2017 USD ($)	Sep. 30, 2018 USD ($)	Sep. 30, 2017 USD ($) $ / shares	Sep. 30, 2018 USD ($)	Sep. 30, 2017 USD ($) $ / shares	Dec. 31, 2017 USD ($)
Business Acquisition [Line Items]
Current portion of programming					$ 40,654		$ 40,654		$ 53,468
Goodwill					760,098		760,098		755,949
Programming (less current portion)					69,381		69,381		85,269
Current portion of programming liabilities					38,703		38,703		58,176
Programming liabilities					38,786		38,786		$ 54,641
Business Acquisition, Pro Forma Information [Abstract]
Operating revenues						$ 236,997		$ 724,627
Loss from continuing operations, net of tax						$ (29,263)		$ (23,937)
Earnings Per Share, Pro Forma [Abstract]
Basic (in USD per share) \| $ / shares						$ (0.36)		$ (0.29)
Diluted (in USD per share) \| $ / shares						$ (0.36)		$ (0.29)
Katz Broadcasting
Business Acquisition [Line Items]
Business acquisition, purchase price				$ 292,000
Noncontrolling interest owned				5.33%
Cash				$ 21,372
Accounts receivable				44,306
Current portion of programming				36,218
Intangible assets				32,300
Goodwill				213,721
Programming (less current portion)				52,908
Other assets				1,395
Total assets acquired				402,220
Accounts payable and accrued liabilities				29,339
Current portion of programming liabilities				32,877
Programming liabilities				37,692
Net purchase price				302,312
Increase in fair value of goodwill, acquisition date revision					$ 4,100
Decrease in programming costs							$ 300
Katz Broadcasting \| Trade Names
Business Acquisition [Line Items]
Intangible assets				$ 8,000
Intangible asset, estimated amortization period				10 years
Katz Broadcasting \| Advertiser Relationship
Business Acquisition [Line Items]
Intangible assets				$ 24,000
Intangible asset, estimated amortization period				5 years
Raycom Media, Inc.
Business Acquisition [Line Items]
Business acquisition, purchase price			$ 55,000
Earnings Per Share, Pro Forma [Abstract]
Number of businesses acquired \| television_station			2
Subsequent Event \| Triton Digital Canada, Inc.
Business Acquisition [Line Items]
Business acquisition, purchase price		$ 150,000
Subsequent Event \| Cordillera Communications, LLC
Business Acquisition [Line Items]
Business acquisition, purchase price	$ 521,000
Earnings Per Share, Pro Forma [Abstract]
Number of businesses acquired \| television_station	15