Earnings Per Share and Dividends (Calculations of Basic and Diluted EPS) (Details 1) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Feb. 29, 2016	Feb. 28, 2015	Feb. 29, 2016	Feb. 28, 2015
Numerator:
Income from continuing operations, net of tax	$ 78,433	$ 57,782	$ 210,348	$ 130,915
Net (loss) income attributable to noncontrolling interests, net of tax	(497)	321	(467)	535
Income from continuing operations attributable to Jabil Circuit, Inc., net of tax	78,930	57,461	210,815	130,380
Discontinued operations attributable to Jabil Circuit, Inc., net of tax		(5,509)		(6,266)
Net income attributable to Jabil Circuit, Inc.	$ 78,930	$ 51,952	$ 210,815	$ 124,114
Denominator for basic and diluted earnings per share:
Denominator for basic earnings per share	190,957	193,561	190,656	193,531
Dilutive common shares issuable under the employee stock purchase plan and upon exercise of stock options and stock appreciation rights	109	99	141	70
Dilutive unvested restricted stock awards	2,228	1,813	2,632	1,933
Denominator for diluted earnings per share	193,294	195,473	193,429	195,534
Basic:
Income from continuing operations, net of tax [per share]	$ 0.41	$ 0.3	$ 1.11	$ 0.67
Discontinued operations, net of tax [per share]	0	(0.03)	0	(0.03)
Net income [per share]	0.41	0.27	1.11	0.64
Diluted:
Income from continuing operations, net of tax [per share]	0.41	0.29	1.09	0.67
Discontinued operations, net of tax [per share]	0	(0.03)	0	(0.03)
Net income [per share]	$ 0.41	$ 0.27	$ 1.09	$ 0.63