Equity Method Investment, Decrease in Income from Equity Method Investment due to Remeasurement

No definition available.

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- Definition

Equity Method Investment, Period for Supplier

+ References

No definition available.

+ Details

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- Definition

Equity Method Investments, Business Wind Down Period

+ References

No definition available.

+ Details

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- Definition

Equity Method Investment, Summarized Financial Information, Depreciation and Amortization

+ References

No definition available.

+ Details

Name:	mgpi_EquityMethodInvestmentSummarizedFinancialInformationDepreciationandAmortization
Namespace Prefix:	mgpi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

This item represents the amount of unrealized intercompany profits and losses on transactions between the Entity and unconsolidated subsidiaries (including certain corporate joint ventures, and noncontrolled corporations), accounted for under the equity method of accounting, which have not been eliminated in preparing the Entity's financial statements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph b

-Article 3A

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 35

-Paragraph 7

-URI http://asc.fasb.org/extlink&oid=35687916&loc=d3e32367-111569

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section S99

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=27015204&loc=d3e355119-122828

+ Details

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- Details

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- Details

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Equity Method Investments (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2014	Jun. 29, 2014
Schedule of Equity Method Investments [Line Items]
Business wind down period	1 year
Period for DMI being sole supplier	2 years
DMI [Member]
Schedule of Equity Method Investments [Line Items]
Equity method ownership percentage (percent)	50.00%
ICP [Member]
Schedule of Equity Method Investments [Line Items]
Equity method ownership percentage (percent)				30.00%
Decrease in related equity method investment earnings due to reassessment		$ 1,180	$ 1,882
Related party sales to MGPI	8,754	6,345
Depreciation and amortization	$ 662	$ 671