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Mergers and Acquisitions (Valuation Model for Lions Gate Replacement Awards) (Details) - Stock Options

12 Months Ended

Dec. 08, 2016

Mar. 31, 2018

Mar. 31, 2017

Mar. 31, 2016

Lions Gate Replacement Awards | Equity Issued in Starz Acquisition

Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]

Expected volatility

35.00%

Expected dividend yield

0.00%

Minimum

Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]

Expected dividend yield

^[1]

0.00%

0.00%

0.80%

Expected option lives (years)

^[2]

4 years

4 years

3 years

Minimum | Lions Gate Replacement Awards | Equity Issued in Starz Acquisition

Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]

Risk-free interest rate

0.39%

Expected option lives (years)

4 days

Maximum

Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]

Expected dividend yield

^[1]

1.50%

1.80%

1.80%

Expected option lives (years)

^[2]

6 years

10 years

6 years

Maximum | Lions Gate Replacement Awards | Equity Issued in Starz Acquisition

Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]

Risk-free interest rate

1.83%

Expected option lives (years)

5 years 6 months

[1]	The expected dividend yield is estimated by dividing the expected annual dividend by the market price of the Company's shares at the date of grant.
[2]	The expected term of options granted represents the period of time that options granted are expected to be outstanding.

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The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(iii)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(ii)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(iv)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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-Publisher FASB
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-Topic 718
-SubTopic 10
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-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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-Publisher FASB
-Name Accounting Standards Codification
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-Section S99
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