Note 3 Fair Value (Details)	6 Months Ended
Mar. 31, 2018
Additional Fair Value Elements [Abstract]
Cash Equivalents	10.00%
Long-term Debt Instrument Fair Value	1.00%

Fair value of long-term debt as an approximate percentage higher or lower than its carrying value.

No definition available.

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