Income Tax Expense (Tax Effects Of Temporary Differences That Give Rise To Significant Portions Of The Deferred Tax Assets And Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Deferred tax assets:
Inventories, long-term contract accounting, contract cost reserves and other	$ 7,710	$ 6,825
Pension and other postretirement benefits	6,974	7,417
Net operating loss carryforward — domestic	658	848
Net operating loss carryforward — foreign	4,702	3,955
Capital loss carryforward	0	240
Other compensation-related costs and other cost accruals	13,996	19,325
State credit carryforward	1,276	1,099
Total deferred tax assets	35,316	39,709
Deferred tax liabilities:
Goodwill	(14,338)	(14,576)
Acquisition assets	(57,795)	(61,403)
Depreciation, software amortization	(16,380)	(36,396)
Net deferred tax liabilities before valuation allowance	(53,197)	(72,666)
Less valuation allowance	(4,297)	(3,780)
Net deferred tax liabilities	$ (57,494)	$ (76,446)