XML 70 R54.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Equity and EPS (Details) | 12 Months Ended
--- | ---
Dec. 31, 2018 board_member shares | Dec. 31, 2017 shares | Dec. 31, 2016 shares
Equity [Abstract] |  |  |
Number of board members that common stockholders are entitled to elect | 4 |  |
Total number of board members | 9 |  |
Number of board members preferred stock shareholders entitled to elect | 5 |  |
Board of directors, term of service | 1 year |  |
Minimum single shareholder ownership percentage to call special stockholder meeting (as a percent) | 10.00% |  |
Restricted Stock Units (RSUs) |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Participating securities (in shares) | shares | 326,375 | 368,492 | 527,486

X
- Definition Board of Directors, Term of Service + References No definition available. + Details
Name: | mgpi_BoardofDirectorsTermofService
Namespace Prefix: | mgpi_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Common Stock, Number of Board Members Shareholders Entitled To Elect + References No definition available. + Details
Name: | mgpi_CommonStockNumberofBoardMembersShareholdersEntitledToElect
Namespace Prefix: | mgpi_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Minimum Single Shareholder Ownership Percentage to Call Stockholder Meeting + References No definition available. + Details
Name: | mgpi_MinimumSingleShareholderOwnershipPercentagetoCallStockholderMeeting
Namespace Prefix: | mgpi_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of Board Members Shareholders Entitled To Elect + References No definition available. + Details
Name: | mgpi_NumberofBoardMembersShareholdersEntitledToElect
Namespace Prefix: | mgpi_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Preferred Stock, Number of Board Members Shareholders Entitled To Elect + References No definition available. + Details
Name: | mgpi_PreferredStockNumberofBoardMembersShareholdersEntitledToElect
Namespace Prefix: | mgpi_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_EquityAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition This element represents nonvested share-based payment awards that contain non-forfeitable rights to dividends or dividend equivalents (whether paid or unpaid). Basic and dilutive earnings per share are generally disclosed for such shares using the two-class method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 61A -URI http://asc.fasb.org/extlink&oid=109260490&loc=SL5780137-109256 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 60B -URI http://asc.fasb.org/extlink&oid=109260490&loc=SL5780133-109256 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 68B -URI http://asc.fasb.org/extlink&oid=109260490&loc=SL5498026-109256 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 59A -URI http://asc.fasb.org/extlink&oid=109260490&loc=SL5780131-109256 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 60A -URI http://asc.fasb.org/extlink&oid=109260490&loc=SL5780132-109256 + Details
Name: | us-gaap_IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_AwardTypeAxis=us-gaap_RestrictedStockUnitsRSUMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |