Revenue Recognition (Disaggregation of Revenue) (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Total revenues	$ 2,977.4	$ 2,848.6	$ 3,188.5
Total advertising related
Disaggregation of Revenue [Line Items]
Total revenues	1,525.6	1,399.0	1,686.6
Digital
Disaggregation of Revenue [Line Items]
Total revenues	510.8	394.5	410.7
Magazine
Disaggregation of Revenue [Line Items]
Total revenues	426.5	553.5	690.1
Non-political spot
Disaggregation of Revenue [Line Items]
Total revenues	279.2	285.6	323.3
Political spot
Disaggregation of Revenue [Line Items]
Total revenues	175.4	23.9	102.9
Third party sales
Disaggregation of Revenue [Line Items]
Total revenues	133.7	141.5	159.6
Total consumer related
Disaggregation of Revenue [Line Items]
Total revenues	1,370.6	1,348.7	1,416.8
Subscription
Disaggregation of Revenue [Line Items]
Total revenues	564.7	611.8	716.1
Retransmission
Disaggregation of Revenue [Line Items]
Total revenues	377.0	347.9	316.5
Newsstand
Disaggregation of Revenue [Line Items]
Total revenues	150.0	150.8	165.5
Licensing
Disaggregation of Revenue [Line Items]
Total revenues	124.9	98.0	95.2
Affinity marketing
Disaggregation of Revenue [Line Items]
Total revenues	62.3	67.4	66.7
Digital and other consumer driven
Disaggregation of Revenue [Line Items]
Total revenues	91.7	72.8	56.8
Total other
Disaggregation of Revenue [Line Items]
Total revenues	81.2	100.9	85.1
Projects based
Disaggregation of Revenue [Line Items]
Total revenues	50.4	56.7	50.5
Other
Disaggregation of Revenue [Line Items]
Total revenues	30.8	44.2	34.6
Operating segments
Disaggregation of Revenue [Line Items]
Total revenues	2,982.3	2,850.9	3,190.4
Operating segments | National Media
Disaggregation of Revenue [Line Items]
Total revenues	2,023.5	2,081.6	2,326.6
Operating segments | National Media | Total advertising related
Disaggregation of Revenue [Line Items]
Total revenues	964.4	993.4	1,150.3
Operating segments | National Media | Digital
Disaggregation of Revenue [Line Items]
Total revenues	491.8	376.8	394.9
Operating segments | National Media | Magazine
Disaggregation of Revenue [Line Items]
Total revenues	426.5	553.5	690.1
Operating segments | National Media | Non-political spot
Disaggregation of Revenue [Line Items]
Total revenues	0.0	0.0	0.0
Operating segments | National Media | Political spot
Disaggregation of Revenue [Line Items]
Total revenues	0.0	0.0	0.0
Operating segments | National Media | Third party sales
Disaggregation of Revenue [Line Items]
Total revenues	46.1	63.1	65.3
Operating segments | National Media | Total consumer related
Disaggregation of Revenue [Line Items]
Total revenues	992.8	1,000.8	1,100.3
Operating segments | National Media | Subscription
Disaggregation of Revenue [Line Items]
Total revenues	564.7	611.8	716.1
Operating segments | National Media | Retransmission
Disaggregation of Revenue [Line Items]
Total revenues	0.0	0.0	0.0
Operating segments | National Media | Newsstand
Disaggregation of Revenue [Line Items]
Total revenues	150.0	150.8	165.5
Operating segments | National Media | Licensing
Disaggregation of Revenue [Line Items]
Total revenues	124.9	98.0	95.2
Operating segments | National Media | Affinity marketing
Disaggregation of Revenue [Line Items]
Total revenues	62.3	67.4	66.7
Operating segments | National Media | Digital and other consumer driven
Disaggregation of Revenue [Line Items]
Total revenues	90.9	72.8	56.8
Operating segments | National Media | Total other
Disaggregation of Revenue [Line Items]
Total revenues	66.3	87.4	76.0
Operating segments | National Media | Projects based
Disaggregation of Revenue [Line Items]
Total revenues	50.4	56.7	50.5
Operating segments | National Media | Other
Disaggregation of Revenue [Line Items]
Total revenues	15.9	30.7	25.5
Operating segments | Local Media
Disaggregation of Revenue [Line Items]
Total revenues	958.8	769.3	863.8
Operating segments | Local Media | Total advertising related
Disaggregation of Revenue [Line Items]
Total revenues	566.1	407.9	538.2
Operating segments | Local Media | Digital
Disaggregation of Revenue [Line Items]
Total revenues	19.0	17.7	15.8
Operating segments | Local Media | Magazine
Disaggregation of Revenue [Line Items]
Total revenues	0.0	0.0	0.0
Operating segments | Local Media | Non-political spot
Disaggregation of Revenue [Line Items]
Total revenues	279.2	285.6	323.3
Operating segments | Local Media | Political spot
Disaggregation of Revenue [Line Items]
Total revenues	175.4	23.9	102.9
Operating segments | Local Media | Third party sales
Disaggregation of Revenue [Line Items]
Total revenues	92.5	80.7	96.2
Operating segments | Local Media | Total consumer related
Disaggregation of Revenue [Line Items]
Total revenues	377.8	347.9	316.5
Operating segments | Local Media | Subscription
Disaggregation of Revenue [Line Items]
Total revenues	0.0	0.0	0.0
Operating segments | Local Media | Retransmission
Disaggregation of Revenue [Line Items]
Total revenues	377.0	347.9	316.5
Operating segments | Local Media | Newsstand
Disaggregation of Revenue [Line Items]
Total revenues	0.0	0.0	0.0
Operating segments | Local Media | Licensing
Disaggregation of Revenue [Line Items]
Total revenues	0.0	0.0	0.0
Operating segments | Local Media | Affinity marketing
Disaggregation of Revenue [Line Items]
Total revenues	0.0	0.0	0.0
Operating segments | Local Media | Digital and other consumer driven
Disaggregation of Revenue [Line Items]
Total revenues	0.8	0.0	0.0
Operating segments | Local Media | Total other
Disaggregation of Revenue [Line Items]
Total revenues	14.9	13.5	9.1
Operating segments | Local Media | Projects based
Disaggregation of Revenue [Line Items]
Total revenues	0.0	0.0	0.0
Operating segments | Local Media | Other
Disaggregation of Revenue [Line Items]
Total revenues	14.9	13.5	9.1
Intersegment Elimination
Disaggregation of Revenue [Line Items]
Total revenues	(4.9)	(2.3)	(1.9)
Intersegment Elimination | Total advertising related
Disaggregation of Revenue [Line Items]
Total revenues	(4.9)	(2.3)	(1.9)
Intersegment Elimination | Digital
Disaggregation of Revenue [Line Items]
Total revenues	0.0	0.0	0.0
Intersegment Elimination | Magazine
Disaggregation of Revenue [Line Items]
Total revenues	0.0	0.0	0.0
Intersegment Elimination | Non-political spot
Disaggregation of Revenue [Line Items]
Total revenues	0.0	0.0	0.0
Intersegment Elimination | Political spot
Disaggregation of Revenue [Line Items]
Total revenues	0.0	0.0	0.0
Intersegment Elimination | Third party sales
Disaggregation of Revenue [Line Items]
Total revenues	(4.9)	(2.3)	(1.9)
Intersegment Elimination | Total consumer related
Disaggregation of Revenue [Line Items]
Total revenues	0.0	0.0	0.0
Intersegment Elimination | Subscription
Disaggregation of Revenue [Line Items]
Total revenues	0.0	0.0	0.0
Intersegment Elimination | Retransmission
Disaggregation of Revenue [Line Items]
Total revenues	0.0	0.0	0.0
Intersegment Elimination | Newsstand
Disaggregation of Revenue [Line Items]
Total revenues	0.0	0.0	0.0
Intersegment Elimination | Licensing
Disaggregation of Revenue [Line Items]
Total revenues	0.0	0.0	0.0
Intersegment Elimination | Affinity marketing
Disaggregation of Revenue [Line Items]
Total revenues	0.0	0.0	0.0
Intersegment Elimination | Digital and other consumer driven
Disaggregation of Revenue [Line Items]
Total revenues	0.0	0.0	0.0
Intersegment Elimination | Total other
Disaggregation of Revenue [Line Items]
Total revenues	0.0	0.0	0.0
Intersegment Elimination | Projects based
Disaggregation of Revenue [Line Items]
Total revenues	0.0	0.0	0.0
Intersegment Elimination | Other
Disaggregation of Revenue [Line Items]
Total revenues	$ 0.0	$ 0.0	$ 0.0