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Income Tax Expense (Benefit) Classification (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011
Income Taxes [Line Items]
Continuing Operations	$ 12,243	$ (3,766)	$ 6,985
Discontinued Operations	(90)	715	1,185
Total	$ 12,153	$ (3,051)	$ 8,170

Tax effect allocated to a disposal group that is classified as a component of the entity reported as a separate component of income before extraordinary items. Includes the tax effects of the following: income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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