Selected Quarterly Financial Data (unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Quarterly Financial Data [Abstract]
Revenues	$ 425,908	$ 398,179	$ 398,905	$ 371,184	$ 390,794	$ 367,414	$ 354,048	$ 356,452	$ 1,594,176	$ 1,468,708	$ 1,471,340
Income from operations	73,292	47,106	68,862	52,852	60,577	31,229	51,901	42,808	242,112	186,515	210,834
Net earnings	$ 42,579	$ 25,256	$ 39,591	$ 29,365	$ 40,445	$ 18,486	$ 30,569	$ 24,041	$ 136,791	$ 113,541	$ 123,650
Basic earnings per share	$ 0.95	$ 0.57	$ 0.89	$ 0.66	$ 0.91	$ 0.41	$ 0.68	$ 0.54	$ 3.07	$ 2.54	$ 2.78
Diluted earnings per share	0.94	0.56	0.87	0.65	0.89	0.41	0.67	0.53	3.02	2.50	2.74
Dividends per share	$ 0.4575	$ 0.4575	$ 0.4325	$ 0.4325	$ 0.4325	$ 0.4325	$ 0.4075	$ 0.4075	$ 1.78	$ 1.68	$ 1.58
Restructuring charges		$ 9,900	$ 6,700		$ 3,700	$ 20,800
Reduction in estimated contingent consideration payable					(2,300)	(2,300)	$ (1,100)		$ (1,500)	$ (5,700)	$ (2,500)
Selling, general and administrative expenses [Member]
Quarterly Financial Data [Abstract]
Reversal of excess restructuring accrual									(105)	(1,356)
Acquisition related costs					2,400	1,500	1,600		1,400	5,500	5,100
National media [Member]
Quarterly Financial Data [Abstract]
Revenues	$ 295,847	275,298	242,381	$ 246,326	279,625	269,680	249,694	$ 266,899	1,059,852	1,065,898	1,095,195
Income from operations	44,219	23,460	26,107	28,895	43,353	13,614	28,070	28,076	122,681	113,113	137,985
Local media [Member]
Quarterly Financial Data [Abstract]
Revenues	130,061	122,881	156,524	124,858	111,169	97,734	104,354	89,553	534,324	402,810	376,145
Income from operations	39,959	31,420	54,986	36,312	25,463	26,696	35,225	25,676	162,677	113,060	124,116
Unallocated corporate [Member]
Quarterly Financial Data [Abstract]
Income from operations	$ (10,886)	$ (7,774)	$ (12,231)	$ (12,355)	$ (8,239)	$ (9,081)	$ (11,394)	$ (10,944)	$ (43,246)	$ (39,658)	$ (51,267)