Acquisitions - Narrative (Details) (USD $)	9 Months Ended		3 Months Ended		0 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015	Dec. 31, 2014	Oct. 31, 2014	Nov. 01, 2014	Nov. 13, 2014	Dec. 19, 2014	Dec. 30, 2014	Feb. 01, 2015
Business Acquisition [Line Items]
Cash purchase price	$ 254,965,000	$ 188,654,000
Goodwill, amount deductible for tax purposes	172,300,000		172,300,000
KASW [Member]
Business Acquisition [Line Items]
Increase (decrease) in assets held for sale based on updated valuation report	23,000,000
Estimated costs to sell	1,400,000
Selling, general and administrative [Member]
Business Acquisition [Line Items]
Acquisition related costs			100,000	1,300,000
Advertiser Relationships [Member] | Minimum [Member] | National Media [Member]
Business Acquisition [Line Items]
Intangible assets, useful life	3 years
Advertiser Relationships [Member] | Maximum [Member] | National Media [Member]
Business Acquisition [Line Items]
Intangible assets, useful life	5 years
Customer Lists [Member] | National Media [Member]
Business Acquisition [Line Items]
Intangible assets, useful life	2 years
Retransmission Agreements [Member]
Business Acquisition [Line Items]
Intangible assets, useful life	6 years
Other Intangible Assets [Member] | Local Media [Member]
Business Acquisition [Line Items]
Intangible assets, useful life	3 years
Other Intangible Assets [Member] | Minimum [Member] | National Media [Member]
Business Acquisition [Line Items]
Intangible assets, useful life	3 years
Other Intangible Assets [Member] | Maximum [Member] | National Media [Member]
Business Acquisition [Line Items]
Intangible assets, useful life	5 years
WGGB [Member]
Business Acquisition [Line Items]
Acquisition-date fair value of the consideration					53,300,000
Cash purchase price					50,000,000
Contingent consideration					3,300,000
Contingent consideration, low end of range	0		0
Contingent consideration, high end of range	4,000,000		4,000,000
Martha Stewart [Member]
Business Acquisition [Line Items]
Acquisition-date fair value of the consideration						0
Term of licensing arrangement						10 years
Mywedding [Member]
Business Acquisition [Line Items]
Acquisition-date fair value of the consideration							42,600,000
Cash purchase price							20,000,000
Contingent consideration							22,600,000
Contingent consideration, low end of range	11,100,000		11,100,000
Contingent consideration, high end of range	40,000,000		40,000,000
Percentage of membership interests or stock acquired							100.00%
Increase (decrease) in consideration transferred			100,000
Increase (decrease) in goodwill based on updated valuation report and other fair value determinations			2,000,000
Mywedding [Member] | Trademarks [Member]
Business Acquisition [Line Items]
Increase (decrease) in intangible assets based on updated valuation report and other fair value determinations			(1,300,000)
Mywedding [Member] | Advertiser Relationships [Member]
Business Acquisition [Line Items]
Increase (decrease) in intangible assets based on updated valuation report and other fair value determinations			(600,000)
WALA [Member]
Business Acquisition [Line Items]
Cash purchase price								89,900,000
Selectable Media [Member]
Business Acquisition [Line Items]
Acquisition-date fair value of the consideration									30,200,000
Cash purchase price									23,000,000
Contingent consideration									7,200,000
Contingent consideration, low end of range	7,300,000		7,300,000
Contingent consideration, high end of range	8,000,000		8,000,000
Percentage of membership interests or stock acquired									100.00%
Basis for contingent consideration, certain financial targets, measurement period									3 years
Shape [Member]
Business Acquisition [Line Items]
Acquisition-date fair value of the consideration										87,400,000
Cash purchase price										60,000,000
Contingent consideration										27,400,000
Contingent consideration, low end of range	26,000,000		26,000,000
Contingent consideration, high end of range	36,800,000		36,800,000
Basis for contingent consideration, certain financial targets, measurement period										3 years
KMOV [Member]
Business Acquisition [Line Items]
Increase (decrease) in goodwill based on updated valuation report and other fair value determinations	(400,000)
KMOV [Member] | Other Intangible Assets [Member]
Business Acquisition [Line Items]
Increase (decrease) in intangible assets based on updated valuation report and other fair value determinations	(100,000)
KMOV [Member] | Network Affiliation Agreements [Member]
Business Acquisition [Line Items]
Increase (decrease) in intangible assets based on updated valuation report and other fair value determinations	1,000,000
KMOV [Member] | Property, Plant and Equipment [Member]
Business Acquisition [Line Items]
Increase (decrease) in fixed assets based on updated valuation report and other fair value determinations	(500,000)
KTVK [Member] | KASW [Member]
Business Acquisition [Line Items]
Increase (decrease) in goodwill based on updated valuation report and other fair value determinations	(800,000)
KTVK [Member] | KASW [Member] | FCC Licenses [Member]
Business Acquisition [Line Items]
Increase (decrease) in intangible assets based on updated valuation report and other fair value determinations	(23,900,000)
KTVK [Member] | Retransmission Agreements [Member] | KASW [Member]
Business Acquisition [Line Items]
Increase (decrease) in intangible assets based on updated valuation report and other fair value determinations	$ 1,700,000