Intangible Assets and Goodwill - Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Jun. 30, 2017
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, gross amount	$ 298,237		$ 307,127
Intangible assets subject to amortization, accumulated amortization	(178,029)		(182,147)
Intangible assets subject to amortization, net amount	120,208		124,980
Indefinite-lived Intangible Assets [Line Items]
Intangible assets not subject to amortization	830,903		830,903
Intangible assets, net	951,111		955,883
Amortization expense	4,672	$ 4,784
Future amortization expense for intangible assets [Abstract]
Future amortization expense, fiscal 2018	17,100
Future amortization expense, fiscal 2019	14,600
Future amortization expense, fiscal 2020	13,700
Future amortization expense, fiscal 2021	9,700
Future amortization expense, fiscal 2022	7,300
Internet domain names [Member] | National media [Member]
Indefinite-lived Intangible Assets [Line Items]
Intangible assets not subject to amortization	7,827		7,827
Trademarks [Member] | National media [Member]
Indefinite-lived Intangible Assets [Line Items]
Intangible assets not subject to amortization	147,915		147,915
FCC licenses [Member] | Local media [Member]
Indefinite-lived Intangible Assets [Line Items]
Intangible assets not subject to amortization	675,161		675,161
Advertiser relationships [Member] | National media [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, gross amount	13,810		18,610
Intangible assets subject to amortization, accumulated amortization	(11,817)		(15,514)
Intangible assets subject to amortization, net amount	1,993		3,096
Customer lists [Member] | National media [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, gross amount	4,200		7,280
Intangible assets subject to amortization, accumulated amortization	(420)		(3,395)
Intangible assets subject to amortization, net amount	3,780		3,885
Other [Member] | National media [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, gross amount	21,325		22,325
Intangible assets subject to amortization, accumulated amortization	(9,662)		(9,850)
Intangible assets subject to amortization, net amount	11,663		12,475
Other [Member] | Local media [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, gross amount	1,670		1,680
Intangible assets subject to amortization, accumulated amortization	(553)		(472)
Intangible assets subject to amortization, net amount	1,117		1,208
Network affiliation agreements [Member] | Local media [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, gross amount	229,309		229,309
Intangible assets subject to amortization, accumulated amortization	(143,823)		(142,216)
Intangible assets subject to amortization, net amount	85,486		87,093
Retransmission agreements [Member] | Local media [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, gross amount	27,923		27,923
Intangible assets subject to amortization, accumulated amortization	(11,754)		(10,700)
Intangible assets subject to amortization, net amount	$ 16,169		$ 17,223