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Commitments and Contingencies - Narrative (Details)	Oct. 21, 2016 USD ($) authority
Commitments and Contingencies Disclosure [Abstract]
Number of regulatory authorities that may impose penalty or fine | authority	1
Insurance deductible | $	$ 250,000

X

- Definition

Loss Contingency, Insurance, Deductible

+ References

No definition available.

+ Details

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X

- Definition

Loss Contingency, Probable Penalty to be Imposed, Number of Regulatory Authorities

+ References

No definition available.

+ Details

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Namespace Prefix:	mgpi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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