Consolidated Statements of Earnings - USD ($) shares in Millions, $ in Millions	3 Months Ended								12 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Revenues
Total revenues	$ 785.6	$ 750.1	$ 878.4	$ 774.4	$ 798.7	$ 655.0	$ 417.7	$ 392.8	$ 3,188.5	$ 2,264.2	$ 1,713.3
Operating expenses
Production, distribution, and editorial									1,161.2	868.0	608.4
Selling, general, and administrative			346.0	350.3					1,350.0	987.5	726.4
Acquisition, disposition, and restructuring related activities									100.9	170.1	10.3
Depreciation and amortization									247.6	129.0	53.8
Impairment of long-lived assets									41.8	22.7	6.2
Total operating expenses									2,901.5	2,177.3	1,405.1
Income (loss) from operations	23.5	75.6	133.7	54.2	66.5	(72.5)	36.7	56.2	287.0	86.9	308.2
Non-operating income, net									24.2	0.7	0.9
Interest expense, net									(170.6)	(97.2)	(18.8)
Earnings (loss) from continuing operations before income taxes									140.6	(9.6)	290.3
Income tax benefit (expense)									(11.5)	123.6	(101.4)
Earnings (loss) from continuing operations	(3.6)	28.4	88.1	16.2	16.6	(95.4)	159.4	33.4	129.1	114.0	188.9
Loss from discontinued operations, net of income taxes	(9.4)	(4.7)	(69.5)	0.8	0.3	(14.9)	0.0	0.0	(82.8)	(14.6)	0.0
Net earnings (loss)	$ (13.0)	$ 23.7	$ 18.6	$ 17.0	$ 16.9	$ (110.3)	$ 159.4	$ 33.4	46.3	99.4	188.9
Earnings (loss) attributable to common shareholders									$ (32.0)	$ 66.4	$ 188.9
Basic earnings (loss) per share attributable to common shareholders
Continuing operations (in dollars per share)	$ (0.51)	$ 0.20	$ 1.50	$ (0.07)	$ (0.06)	$ (2.41)	$ 3.55	$ 0.75	$ 1.12	$ 1.80	$ 4.23
Discontinued operations (in dollars per share)									(1.83)	(0.32)	0
Basic earnings (loss) per common share (in dollars per share)	(0.72)	0.10	(0.03)	(0.06)	(0.06)	(2.74)	3.55	0.75	$ (0.71)	$ 1.48	$ 4.23
Basic average common shares outstanding (in shares)									45.3	44.9	44.6
Diluted earnings (loss) per share attributable to common shareholders
Continuing operations (in dollars per share)	(0.51)	0.20	1.46	(0.07)	(0.06)	(2.41)	3.49	0.73	$ 1.12	$ 1.79	$ 4.16
Discontinued operations (in dollars per share)									(1.82)	(0.32)	0
Diluted earnings (loss) per common share (in dollars per share)	$ (0.72)	$ 0.10	$ (0.01)	$ (0.06)	$ (0.06)	$ (2.74)	$ 3.49	$ 0.73	$ (0.70)	$ 1.47	$ 4.16
Diluted average common shares outstanding (in shares)									45.5	45.2	45.4
Advertising related
Revenues
Total revenues									$ 1,686.6	$ 1,190.7	$ 934.1
Consumer related
Revenues
Total revenues			$ 358.3	$ 316.1					1,393.6	921.3	613.5
Other
Revenues
Total revenues									$ 108.3	$ 152.2	$ 165.7