Income Taxes (Reconciliation Of Income Tax Computed At U.S. Federal Statutory Tax Rate And Actual Income Tax Expense) (Details) (USD $) In Thousands	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Income Taxes
Computed tax benefit	$ (835)	$ 5,073	$ 966
State taxes, net of federal benefit	(818)	864	427
Nondeductible expenses and other permanent differences	8,236	5,102	805
Foreign taxes	(7,043)	105	274
Provision to return adjustments	5,039	3,712	4,337
Other	999	494	161
Change in valuation allowance	(4,982)	(14,082)	(5,866)
Total	$ 596	$ 1,268	$ 1,104