Represents the number of search warrants executed authorizing the seizure of certain records.

No definition available.

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Namespace Prefix:	seb_
Data Type:	xbrli:integerItemType
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- Definition

Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees.

+ References

No definition available.

+ Details

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

- 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

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=82911808&loc=d3e14435-108349

+ Details

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Period Type:	duration

- Details

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- Details

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Commitments and Contingencies - Numbers of Items (Details) $ in Millions	1 Months Ended	12 Months Ended
	Dec. 31, 2017 USD ($)	Dec. 31, 2017 item	Sep. 19, 2012 item
Contingencies
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
Number of civil or criminal proceedings or charges filed		0
Regulatory Action \| Maximum
Contingencies
Settlement \| $	$ 1