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Goodwill and Other Intangible Assets - Intangible Assets and Goodwill (Details) - USD ($) $ in Thousands | Jun. 30, 2017 | Dec. 31, 2016
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Goodwill and Intangible Assets Disclosure [Line Items] |  |
Goodwill | $ 2,579,417 | $ 2,579,417
Goodwill, Accumulated Amortization | 0 | 0
Total indefinite-live and amortizable intangible assets | 1,361,389 | 1,361,389
Total indefinite-live and amortizable intangible assets, accumulated amortization | (77,327) | (66,550)
Retransmission agreements |  |
Goodwill and Intangible Assets Disclosure [Line Items] |  |
Amortizable intangible assets | 110,191 | 110,191
Amortizable intangible assets, accumulated amortization | (54,817) | (47,280)
Network affiliation agreements |  |
Goodwill and Intangible Assets Disclosure [Line Items] |  |
Amortizable intangible assets | 43,485 | 43,485
Amortizable intangible assets, accumulated amortization | (16,908) | (14,445)
Other |  |
Goodwill and Intangible Assets Disclosure [Line Items] |  |
Amortizable intangible assets | 15,763 | 15,763
Amortizable intangible assets, accumulated amortization | (5,602) | (4,825)
Television station FCC licenses |  |
Goodwill and Intangible Assets Disclosure [Line Items] |  |
Indefinite-lived intangibles | 1,191,950 | 1,191,950
Total indefinite-live and amortizable intangible assets, accumulated amortization | $ 0 | $ 0

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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