Document And Entity Information	6 Months Ended
	Feb. 29, 2012	Mar. 27, 2012
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Feb. 29, 2012
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2012
Entity Registrant Name	JABIL CIRCUIT INC
Entity Central Index Key	0000898293
Current Fiscal Year End Date	--08-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		206,674,237