Accounts Receivable (Schedule Of Accounts Receivable Net Of Allowance For Doubtful Accounts) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, Total	$ 105,449	$ 91,980
Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, Total	101,153	88,938
U.S. Government and prime contractors [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, Total	$ 4,296	$ 3,042