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

No definition available.

Name:	mgpi_EquityMethodInvestmentConditionalRighttoEndOperationsEarningsBeforeInterestExpenseIncomeTaxDepreciationandAmortizationThresholdAmount
Namespace Prefix:	mgpi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Equity Method Investment, Exercise of Option to Purchase, Ownership Interest Percentage Sold

+ References

No definition available.

+ Details

Name:	mgpi_EquityMethodInvestmentExerciseofOptiontoPurchaseOwnershipInterestPercentage
Namespace Prefix:	mgpi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Equity Method Investment, Ownership Percentage Sold

+ References

No definition available.

+ Details

Name:	mgpi_EquityMethodInvestmentOwnershipPercentageSold
Namespace Prefix:	mgpi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Equity Method Investment, Profit Allocation Percentage

+ References

No definition available.

+ Details

Name:	mgpi_EquityMethodInvestmentProfitAllocationPercentage
Namespace Prefix:	mgpi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Equity Method Investment, Right to End Operations, Earnings Before Interest Expense, Income Tax, Depreciation and Amortization Threshold Amount

+ References

No definition available.

+ Details

Name:	mgpi_EquityMethodInvestmentRighttoEndOperationsEarningsBeforeInterestExpenseIncomeTaxDepreciationandAmortizationThresholdAmount
Namespace Prefix:	mgpi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Equity Method Investment, Right to End Operations, Working Capital Threshold Amount

+ References

No definition available.

+ Details

Name:	mgpi_EquityMethodInvestmentRighttoEndOperationsWorkingCapitalThresholdAmount
Namespace Prefix:	mgpi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount of depreciation and amortization reported by an equity method investment of the entity.

+ References

No definition available.

+ Details

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

- Definition

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

+ References

No definition available.

+ Details

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

- Definition

Related Party, Number of Board Members

+ References

No definition available.

+ Details

Name:	mgpi_RelatedPartyNumberofBoardMembers
Namespace Prefix:	mgpi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Related Party, Number of Board Members Entitled to be Named

+ References

No definition available.

+ Details

Name:	mgpi_RelatedPartyNumberofBoardMembersEntitledtobeNamed
Namespace Prefix:	mgpi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- 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 Statement of Financial Accounting Standard (FAS)

-Number 159

-Paragraph 18

-Subparagraph f

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: 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

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

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 18

-Paragraph 20

-Subparagraph a (1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Name:	us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 12

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3179-108585

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 15

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 16

-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Name:	us-gaap_ProceedsFromSaleOfEquityMethodInvestments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_ScheduleOfEquityMethodInvestmentsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

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

+ References

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

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section H

+ Details

Name:	us-gaap_SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Equity Method Investments (Detail) (USD $) In Thousands, unless otherwise specified	0 Months Ended	3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended			0 Months Ended
	Feb. 01, 2012	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013 ICP Holdings [Member]	Jun. 30, 2013 ICP Limited Liability Company [Member]	Jun. 30, 2013 ICP Limited Liability Company [Member]	Feb. 01, 2012 ICP (30% interest) board_member	Jan. 30, 2012 ICP (30% interest)	Feb. 01, 2012 ICP (30% interest) ICP Holdings [Member] board_member	Nov. 20, 2009 ICP (30% interest) ICP Holdings [Member]	Jun. 30, 2013 D.M. Ingredients GmbH [Member]
Schedule of Equity Method Investments [Line Items]
Equity method ownership percentage									30.00%	50.00%			50.00%
Ownership percentage sold												50.00%
Additional information	20.00%
Proceeds from sale of joint venture interest	$ 9,103			$ 0	$ 9,103
Equity method investee, cumulative percentage ownership by parent											70.00%
Number of board members entitled to be named									2		4
Number of board members									6
EBITDA (in Dollars)							500
Right to end operations, 3 quarter aggregate EBITDA losses threshold amount								1,500
Net working capital (in Dollars)							2,500	2,500
Profit allocation percentage		12.00%				88.00%
Summarized financial information related party transaction amounts of transaction (in Dollars)		741	14,638	3,400	30,633
Summarized financial information depreciation and amortization (in Dollars)		$ 1,170	$ 1,259	$ 2,340	$ 2,519