Reconciliation of Funded Status of Plans to Consolidated Balance Sheets (Detail) (USD $) In Thousands, unless otherwise specified	Aug. 31, 2012	Aug. 31, 2011	Aug. 31, 2010
Funded Status
Ending fair value of plan assets	$ 133,430	$ 99,237	$ 85,571
Ending projected benefit obligation	(190,320)	(137,874)	(133,683)
Under or unfunded status	(56,890)	(38,637)
Consolidated Balance Sheet Information
Accrued benefit liability, current	(126)	(95)
Accrued benefit liability, noncurrent	(56,764)	(38,542)
Net liability recorded at August 31	(56,890)	(38,637)
Amounts recognized in accumulated other comprehensive loss consist of:
Net actuarial loss	41,977	25,534
Prior service cost	(127)	(173)
Accumulated other comprehensive loss, before taxes	$ 41,850	$ 25,361

The pretax total of net gain (loss), prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s) because they have yet to be recognized as components of net periodic benefit cost.

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