Reportable Segments, Geographic Information And Major Customers (Concentration Of Risk) (Details) (Juniper Networks [Member])	12 Months Ended
Sep. 29, 2012 Rate	Oct. 01, 2011 Rate	Oct. 02, 2010 Rate
Juniper Networks [Member]
Segment Reporting Information [Line Items]
Major Customers Revenues As Percentage of Net Revenues	16.00%	17.00%	16.00%

Major customers revenues as percentage of net revenues.

No definition available.

Name:	plxs_MajorCustomersRevenuesAsPercentageOfNetRevenues
Namespace Prefix:	plxs_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration