Description Of Business And Summary Of Significant Accounting Policies (Tables)

12 Months Ended

Aug. 31, 2011

Description Of Business And Summary Of Significant Accounting Policies

Estimated Useful Lives For Major Classes Of Depreciable Assets

Asset Class	Estimated Useful Life
Buildings	35years
Leasehold improvements	Shorter of lease term or useful life of the improvement
Machinery and equipment	5to 10 years
Furniture, fixtures and office equipment	5years
Computer hardware and software	3to 7 years
Transportation equipment	3years

Basic And Diluted Earnings (Loss) Per Share, Calculation

	Fiscal Year Ended August 31,
	2011		2010		2009
Numerator:
Net income (loss) attributable to Jabil Circuit, Inc	$	381,063	$	168,840	$	(1,165,212	)
Denominator for basic and diluted earnings (loss) per share:
Weighted-average common shares outstanding		212,386		209,418		207,002
Share-based payment awards classified as participating securities		2,116		4,914		—
Denominator for basic earnings (loss) per share		214,502		214,332		207,002
Dilutive common shares issuable under the employee stock purchase plan and upon exercise of stock options and stock appreciation rights		872		215		—
Dilutive unvested restricted stock awards		5,345		3,050		—
Denominator for diluted earnings (loss) per share		220,719		217,597		207,002
Earnings (loss) per common share:
Basic	$	1.78	$	0.79	$	(5.63	)
Diluted	$	1.73	$	0.78	$	(5.63	)

Accumulated Other Comprehensive Income (Loss)

	August 31,
	2011			2010
Foreign currency translation adjustment	$	228,439		$	168,413
Unrecognized gains (losses) on derivative instruments, net of tax		(11,172	)		(16,086	)
Actuarial loss, net of tax		(22,689	)		(30,398	)
Prior service cost, net of tax		128			133
	$	194,706		$	122,062