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Segment Information (Capital Expenditures By Segment) (Details) - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018
Segment Reporting Information [Line Items]
Capital expenditures	$ 31.1	$ 43.8	$ 45.9
Motion Picture
Segment Reporting Information [Line Items]
Capital expenditures	0.0	0.0	0.0
Television Production
Segment Reporting Information [Line Items]
Capital expenditures	1.2	3.2	1.4
Media Networks
Segment Reporting Information [Line Items]
Capital expenditures	22.4	30.0	31.5
Corporate
Segment Reporting Information [Line Items]
Capital expenditures	$ 7.5	$ 10.6	$ 13.0

X

- Definition

The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585

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- 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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