Commitments and Contingencies (Tables)

12 Months Ended

Aug. 31, 2012

Commitments and Contingencies Disclosure [Abstract]

Schedule Of Future Minimum Obligations [Table Text Block]

The table below sets forth the Company’s future minimum obligations under non-cancelable operating leases as of August 31, 2012 (in thousands):

Years ending August 31,	Operating Leases
2013	$	19,898
2014	17,260
2015	13,102
2016	7,931
2017	6,074
Thereafter	22,296
Total	$	86,561

Schedule Of Reserves For Environmental Liabilities [Table Text Block]

Changes in the Company’s liabilities for environmental liabilities for the years ended August 31, 2012 and 2011 were as follows (in thousands):

Reporting Segment	Balance 8/31/2010		Liabilities Established (Released), Net(1)		Payments			Ending Balance8/31/2011		Liabilities Established (Released), Net(1)		Payments			Ending Balance 8/31/2012		Short-Term		Long-Term
MRB	$	25,374	$	1,040	$	(759	)	$	25,655	$	5,380	$	(176	)	$	30,859	$	1,631	$	29,228
APB	14,500		700		—			15,200		1,000		—			16,200		554		15,646
Total	$	39,874	$	1,740	$	(759	)	$	40,855	$	6,380	$	(176	)	$	47,059	$	2,185	$	44,874

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(1) During fiscal 2012 and 2011, the Company recorded $8 million and $1 million, respectively, in purchase accounting for environmental liabilities related to properties acquired or leased in connection with business combinations completed in fiscal 2011.