-- None. No documentation exists for this element. --

No definition available.

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- Definition

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

+ References

No definition available.

+ Details

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- Definition

Equity Method Investment, Income Allocation to Electing Member, Percentage

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
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- Definition

Equity Method Investment, Income Allocation to Objecting Member, Percentage

+ References

No definition available.

+ Details

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Namespace Prefix:	mgpi_
Data Type:	num:percentItemType
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- Definition

Equity Method Investment, Increase (Decrease) Earnings Per Share

+ References

No definition available.

+ Details

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Namespace Prefix:	mgpi_
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Balance Type:	na
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- Definition

Equity Method Investment, Ownership Percentage by Parent

+ References

No definition available.

+ Details

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

- Definition

Equity Method Investment, Summarized Financial Information, Depreciation and Amortization

+ References

No definition available.

+ Details

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Namespace Prefix:	mgpi_
Data Type:	xbrli:monetaryItemType
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- Definition

Line of Credit Facility, Future Maximum Borrowing Capacity Increase

+ References

No definition available.

+ Details

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Namespace Prefix:	mgpi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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- Definition

Line of Credit Facility, Termination of Borrowing, Amount

+ References

No definition available.

+ Details

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Namespace Prefix:	mgpi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

Proceeds from Business Interruption Insurance Recoveries

+ References

No definition available.

+ Details

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Namespace Prefix:	mgpi_
Data Type:	xbrli:monetaryItemType
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- Definition

This item represents disclosure of the amount of dividends or other distributions received from unconsolidated subsidiaries, certain corporate joint ventures, and certain noncontrolled corporation; these investments are accounted for under the equity method of accounting. This element excludes distributions that constitute a return of investment, which are classified as investing activities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 13
-Article 5

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- Definition

This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value subject to the equity accounting method. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 35
-Paragraph 32
-URI http://asc.fasb.org/extlink&oid=35687916&loc=d3e32787-111569

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- 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

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 19, 22
-Article 5

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- Definition

Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

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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.

+ Details

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- Definition

Percentage of subsidiary's or equity method investee's stock owned by parent immediately after all stock transactions.

+ References

No definition available.

+ Details

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Equity Method Investments (Detail) - USD ($)			3 Months Ended	9 Months Ended	12 Months Ended
Equity Method Investments (Detail) - USD ($)	Apr. 09, 2015	Dec. 04, 2014	Mar. 31, 2013	Sep. 30, 2014	Dec. 31, 2015	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2015
Schedule of Equity Method Investments [Line Items]
Distribution received from equity method investee					$ 0	$ 4,835,000		$ 0
Equity method investment, other than temporary impairment					0	0		0
Related party expenses					40,787,000	35,613,000		7,736,000
Proceeds from business interruption insurance recoveries					4,112,000
ICP Limited Liability Company [Member]
Schedule of Equity Method Investments [Line Items]
EBITDA, earnings (loss)			$ (500,000)		$ (500,000)
ICP [Member]
Schedule of Equity Method Investments [Line Items]
Equity method ownership percentage (percent)					30.00%		30.00%		30.00%
Income allocation to objecting member (as a percent)					80.00%
Income allocation to electing member (as a percent)					20.00%
Decrease in related equity method investment earnings due to reassessment				$ 1,882,000			$ 1,882,000
Increase (decrease) in earnings per share (in dollars per share)				$ (0.10)
Distribution received from equity method investee		$ 4,835,000
Depreciation and amortization					$ 2,634,000	$ 2,847,000		$ 4,523,000
ICP [Member] \| Revolving Credit Facility [Member] \| Line of Credit [Member]
Schedule of Equity Method Investments [Line Items]
Maximum borrowing capacity	$ 30,000,000
Future maximum borrowing capacity increase	20,000,000
ICP [Member] \| Amended and Restated Revolving Credit Facility [Member] \| Revolving Credit Facility [Member] \| Line of Credit [Member]
Schedule of Equity Method Investments [Line Items]
Termination of borrowing, amount	$ 15,000,000
ICP [Member] \| ICP Holdings [Member]
Schedule of Equity Method Investments [Line Items]
Ownership percentage by parent (as a percent)					70.00%
Equity method investment, ownership percentage by parent (as a percent)							70.00%
D.M. Ingredients GmbH [Member]
Schedule of Equity Method Investments [Line Items]
Equity method ownership percentage (percent)					50.00%