Commitments and Contingencies (Tables)

12 Months Ended

Aug. 31, 2012

Commitments and Contingencies Disclosure [Abstract]

Schedule of future minimum rental payments for operating leases

Minimum future lease payments, required under noncancelable operating leases as of August 31, 2012 are as follows:



	Rail Cars		Vehicles		Equipment and Other		Total
	(Dollars in thousands)
2013	$	13,307	$	20,885	$	14,767	$	48,959
2014	10,452		16,425		12,368		39,245
2015	9,500		13,233		11,045		33,778
2016	8,401		12,894		9,783		31,078
2017	7,388		8,426		8,401		24,215
Thereafter	8,050		2,415		15,269		25,734
Total minimum future lease payments	$	57,098	$	74,278	$	71,633	$	203,009

Unrecorded unconditional purchase obligations disclosure

Minimum future payments required under noncancelable purchase obligations as of August 31, 2012 are as follows:



	Payments Due by Period
	Total		Less than 1 Year		1 - 3 Years		3 - 5 Years		More than 5 Years
	(Dollars in thousands)
Long-term unconditional purchase obligations	$	568,522	$	63,778	$	132,222	$	117,311	$	255,211
Other contractual obligations	5,701,737		5,657,100		31,837		9,777		3,023
Total purchase obligations	$	6,270,259	$	5,720,878	$	164,059	$	127,088	$	258,234

- Definition

Tabular disclosure of unconditional purchase obligations that are not recognized as a liability on the balance sheet, including the nature and significant terms of an unconditional purchase obligation; the amount of the fixed and determinable portion of the obligation as of the date of the latest balance sheet presented in the aggregate and, if determinable, for each of the five succeeding fiscal years; the nature of any variable components of the obligation; the amount purchased under the obligation (for example, the take-or-pay or throughput contract) for the reporting period; and may include the amount of imputed interest necessary to reduce the obligation to present value.

+ References+ Details