Note 1 Organization of Sanmina Segment Information (Details)	12 Months Ended
Sep. 28, 2019
Segment Reporting [Abstract]
Revenue percentage generated by reportable segment	80.00%

The percentage of net revenue generated by a reportable segment for the period.

No definition available.

Name:	sanm_ReportableSegmentRevenuePercentage
Namespace Prefix:	sanm_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration