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Commitments and Contingencies (Details) (USD $) | 0 Months Ended |
--- | --- | ---
Apr. 04, 2015 item | Oct. 17, 2014 item | Sep. 18, 2014 item | Apr. 29, 2015 item | Sep. 19, 2012 item
Contingencies |  |  |  |  |
Number of entities, where records requested by court |  | 8 seb_NumberOfEntitiesRecordsRequestedByCourt | 9 seb_NumberOfEntitiesRecordsRequestedByCourt |  |
Number of individuals, where records requested by court |  | 1 seb_NumberOfIndividualsRecordsRequestedByCourt | 1 seb_NumberOfIndividualsRecordsRequestedByCourt |  |
Number of search warrants executed authorizing the seizure of certain records from Seaboard's offices in Merriam, Kansas and at the Seaboard Foods employment office and the human resources department in Guymon, Oklahoma. |  |  |  |  | 3 seb_NumberOfSearchWarrantsExecutedAuthorizingSeizureOfCertainRecords
Number of civil or criminal proceedings or charges filed | 0 us-gaap_LossContingencyNewClaimsFiledNumber |  |  |  |
Committed bank line |  |  |  |  |
Debt Instrument |  |  |  |  |
Letters of credit outstanding | 10,000 us-gaap_LettersOfCreditOutstandingAmount / us-gaap_DebtInstrumentAxis = seb_CommittedLineOfCreditMember |  |  |  |
Uncommitted bank lines |  |  |  |  |
Debt Instrument |  |  |  |  |
Letters of credit outstanding | 1,531,000 us-gaap_LettersOfCreditOutstandingAmount / us-gaap_DebtInstrumentAxis = seb_UncommittedLineOfCreditMember |  |  |  |
Subsequent event |  |  |  |  |
Contingencies |  |  |  |  |
Number of foreign companies, where records requested by court |  |  |  | 37 seb_NumberOfForeignCompaniesRecordsRequestedByCourt / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |
Number of individuals, where records requested by court |  |  |  | 5 seb_NumberOfIndividualsRecordsRequestedByCourt / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |

X
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- Definition Represents number of foreign companies, of which records requested by Court. + References No definition available. + Details
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- Definition Represents number of individuals, of which records requested by Court. + References No definition available. + Details
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- Definition Represents the number of search warrants executed authorizing the seizure of certain records. + References No definition available. + Details
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- Details
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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
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Period Type: | instant

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- Details
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Namespace Prefix: | us-gaap_
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- Definition The total number of new claims filed pertaining to a loss contingency during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349 + Details
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- Details
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- Details
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- Details
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