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Investment In Films and Television Programs and Program Rights (Narrative) (Details)	12 Months Ended
	Mar. 31, 2017
Investment In Films And Television Programs and Program Rights [Abstract]
Percentage of unamortized film costs, one year	48.20%
Percentage of unamortized film costs, three years	80.80%

X

- Definition

The percentage of unamortized film costs for released films and television programs, net of accumulated amortization and excluding acquired film libraries, that it expects to amortize within three years from the date of the balance sheet.

+ References

No definition available.

+ Details

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X

- Definition

The percentage of unamortized film costs for released films and television programs, net of accumulated amortization and excluding acquired film libraries, that it expects to amortize within one year from the date of the balance sheet.

+ References

No definition available.

+ Details

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Namespace Prefix:	lgfa_
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Balance Type:	na
Period Type:	duration

X

- Definition

Investment In Films And Television Programs and Program Rights.

+ References

No definition available.

+ Details

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