Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Sep. 30, 2012
ASSETS
Cash and cash equivalents	$ 35,880	$ 30,215
Accounts receivable, net	141,154	151,051
Costs and estimated earnings on long-term contracts, less progress billings of $15,214 and $30,534, respectively	15,523	14,567
Inventories	117,497	108,061
Current portion of deferred tax assets	22,706	22,313
Other current assets	38,699	17,237
Total current assets	371,459	343,444
Property, plant and equipment, net	80,699	75,876
Intangible assets, net	244,392	231,473
Goodwill	387,630	361,280
Other assets	21,327	21,680
Total assets	1,105,507	1,033,753
LIABILITIES AND SHAREHOLDERS' EQUITY
Current maturities of long-term debt	51,698	50,000
Accounts payable	50,237	54,049
Advance payments on long-term contracts, less costs incurred of $39,186 and $31,534, respectively	15,967	21,700
Accrued salaries	21,111	25,717
Current portion of deferred revenue	40,149	24,920
Accrued other expenses	30,176	27,819
Total current liabilities	209,338	204,205
Pension obligations	33,984	35,480
Deferred tax liabilities	92,790	88,675
Other liabilities	22,037	9,080
Long-term debt	126,000	65,000
Total liabilities	484,149	402,440
Shareholders' equity:
Preferred stock, par value $.01 per share, authorized 10,000,000 shares
Common stock, par value $.01 per share, authorized 50,000,000 shares, issued 30,147,204 and 30,044,486 shares, respectively	302	300
Additional paid-in capital	282,328	279,392
Retained earnings	439,150	441,566
Accumulated other comprehensive loss, net of tax	(26,298)	(25,378)
Total shareholders' equity before treasury stock	695,482	695,880
Less treasury stock, at cost: 3,714,607 and 3,453,249 common shares, respectively	(74,124)	(64,567)
Total shareholders' equity	621,358	631,313
Total liabilities and shareholders' equity	$ 1,105,507	$ 1,033,753