Financial Information about Industry Segments (Details) (USD $)	3 Months Ended								12 Months Ended
	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2014 measures segment	Jun. 30, 2013	Jun. 30, 2012
Segment Reporting Information [Line Items]
Number of reportable segments									2
Intersegment Transactions									$ 0
Number of principal financial measures									2
Segment Reporting Information, Additional Information [Abstract]
Revenues	390,794,000	367,414,000	354,048,000	356,452,000	386,973,000	369,615,000	360,595,000	354,157,000	1,468,708,000	1,471,340,000	1,376,687,000
Income from operations	60,577,000	31,229,000	51,901,000	42,808,000	58,030,000	50,046,000	57,453,000	45,305,000	186,515,000	210,834,000	185,771,000
Interest expense, net									(12,176,000)	(13,430,000)	(12,896,000)
Earnings before income taxes									174,339,000	197,404,000	172,875,000
Depreciation and amortization									59,928,000	45,350,000	44,326,000
Assets	2,543,800,000				2,140,059,000				2,543,800,000	2,140,059,000	2,016,299,000
Capital expenditures									24,822,000	25,969,000	35,718,000
National media [Member]
Segment Reporting Information, Additional Information [Abstract]
Revenues	279,625,000	269,680,000	249,694,000	266,899,000	294,561,000	284,228,000	249,436,000	266,970,000	1,065,898,000	1,095,195,000	1,060,385,000
Income from operations	43,353,000	13,614,000	28,070,000	28,076,000	43,393,000	42,991,000	22,177,000	29,424,000	113,113,000	137,985,000	133,020,000
Depreciation and amortization									29,455,000	19,199,000	17,617,000
Assets	1,422,855,000				1,454,225,000				1,422,855,000	1,454,225,000	1,332,505,000
Capital expenditures									5,491,000	6,455,000	8,544,000
Local media [Member]
Segment Reporting Information [Line Items]
Amortization of broadcast rights									8,800,000	9,700,000	11,900,000
Segment Reporting Information, Additional Information [Abstract]
Revenues	111,169,000	97,734,000	104,354,000	89,553,000	92,412,000	85,387,000	111,159,000	87,187,000	402,810,000	376,145,000	316,302,000
Income from operations	25,463,000	26,696,000	35,225,000	25,676,000	27,676,000	24,085,000	44,711,000	27,644,000	113,060,000	124,116,000	88,291,000
Depreciation and amortization									28,815,000	24,471,000	24,732,000
Assets	996,935,000				587,611,000				996,935,000	587,611,000	589,096,000
Capital expenditures									16,578,000	14,688,000	13,385,000
Unallocated corporate [Member]
Segment Reporting Information, Additional Information [Abstract]
Income from operations	(8,239,000)	(9,081,000)	(11,394,000)	(10,944,000)	(13,039,000)	(17,030,000)	(9,435,000)	(11,763,000)	(39,658,000)	(51,267,000)	(35,540,000)
Depreciation and amortization									1,658,000	1,680,000	1,977,000
Assets	124,010,000				98,223,000				124,010,000	98,223,000	94,698,000
Capital expenditures									$ 2,753,000	$ 4,826,000	$ 13,789,000