CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2018	Sep. 30, 2017
Current assets:
Cash and cash equivalents	$ 30,477	$ 45,516
Accounts receivable, less allowance for doubtful accounts of $1,683 and $2,030 in 2018 and 2017, respectively	163,740	160,580
Costs and estimated earnings on long-term contracts, less progress billings of $27,636 and $64,099 in 2018 and 2017, respectively	53,034	47,286
Inventories, net	135,416	124,515
Other current assets	13,356	14,895
Total current assets	396,023	392,792
Property, plant and equipment:
Land and land improvements	9,944	9,964
Buildings and leasehold improvements	92,418	88,469
Machinery and equipment	141,711	129,366
Construction in progress	6,609	4,599
Property, Plant and Equipment, Gross	250,682	232,398
Less accumulated depreciation and amortization	(115,728)	(99,650)
Net property, plant and equipment	134,954	132,748
Intangible assets, net	345,353	351,134
Goodwill	381,652	377,879
Other assets	7,140	5,891
Total Assets	1,265,122	1,260,444
Current liabilities:
Current maturities of long-term debt	20,000	20,000
Accounts payable	63,033	54,789
Advance payments on long-term contracts, less costs incurred of $26,693 and $59,772 in 2018 and 2017, respectively	19,467	22,451
Accrued salaries	29,379	32,259
Current portion of deferred revenue	29,568	28,583
Accrued other expenses	39,083	36,887
Total current liabilities	200,530	194,969
Pension obligations	16,286	30,223
Deferred tax liabilities	64,794	86,378
Other liabilities	24,102	21,956
Long-term debt	200,000	255,000
Total liabilities	505,712	588,526
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 30,534,786 and 30,468,824 shares in 2018 and 2017, respectively	305	305
Additional paid-in capital	291,190	289,785
Retained earnings	606,837	516,718
Accumulated other comprehensive loss, net of tax	(31,528)	(27,308)
Total stockholders' equity before Treasury Stock	866,804	779,500
Less treasury stock, at cost (4,623,958 and 4,635,622 common shares in 2018 and 2017, respectively)	(107,394)	(107,582)
Total shareholders' equity	759,410	671,918
Total Liabilities and Shareholders' Equity	$ 1,265,122	$ 1,260,444