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Investment In Films and Television Programs and Licensed Program Rights (Impairments) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Write downs on investments in films and television programs and licensed program rights	$ 2.6	$ 18.9	$ 29.3	$ 38.0
Not included in segment operating results
Segment Reporting Information [Line Items]
Write downs on investments in films and television programs and licensed program rights	0.0	0.0	0.0	15.4
Motion Picture | Reportable Segments
Segment Reporting Information [Line Items]
Write downs on investments in films and television programs and licensed program rights	1.1	13.7	1.2	14.6
Television Production | Reportable Segments
Segment Reporting Information [Line Items]
Write downs on investments in films and television programs and licensed program rights	$ 1.5	$ 5.2	$ 28.1	$ 8.0

X

- Definition

Amount of impairment loss on capitalized cost for film predominantly monetized on its own and film group.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 926
-SubTopic 20
-Section 50
-Paragraph 4C
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=120154696&loc=SL120155252-107959

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X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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