CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2018	Sep. 30, 2017
Current assets:
Cash and cash equivalents	$ 43,259	$ 45,516
Accounts receivable, net	164,100	160,580
Costs and estimated earnings on long-term contracts, less progress billings of $43,769 and $64,099, respectively	39,180	47,286
Inventories	145,596	124,515
Other current assets	17,861	14,895
Total current assets	409,996	392,792
Property, plant and equipment, net of accumulated depreciation of $113,831 and $99,650, respectively	134,704	132,748
Intangible assets, net of accumulated amortization of $87,494 and $73,879, respectively	345,874	351,134
Goodwill	381,420	377,879
Other assets	6,977	5,891
Total assets	1,278,971	1,260,444
Current liabilities:
Current maturities of long-term debt	20,000	20,000
Accounts payable	49,830	54,789
Advance payments on long-term contracts, less costs incurred of $54,295 and $59,772, respectively	29,841	22,451
Accrued salaries	26,597	32,259
Current portion of deferred revenue	37,082	28,583
Accrued other expenses	36,672	36,887
Total current liabilities	200,022	194,969
Pension obligations	21,976	30,223
Deferred tax liabilities	63,292	86,378
Other liabilities	24,427	21,956
Long-term debt	242,000	255,000
Total liabilities	551,717	588,526
Shareholders' equity:
Preferred stock, par value $.01 per share, authorized 10,000,000 shares	0	0
Common stock, par value $.01 per share, authorized 50,000,000 shares, issued 30,534,786 and 30,468,824 shares, respectively	305	305
Additional paid-in capital	290,106	289,785
Retained earnings	574,192	516,718
Accumulated other comprehensive loss, net of tax	(29,955)	(27,308)
Total stockholders' equity before Treasury Stock	834,648	779,500
Less treasury stock, at cost: 4,623,958 and 4,635,622 common shares, respectively	(107,394)	(107,582)
Total shareholders' equity	727,254	671,918
Total liabilities and shareholders' equity	$ 1,278,971	$ 1,260,444