CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2017	Sep. 30, 2016
Current assets:
Cash and cash equivalents	$ 45,516	$ 53,825
Accounts receivable, less allowance for doubtful accounts of $2,030 and $1,930 in 2017 and 2016, respectively	160,580	121,486
Costs and estimated earnings on long-term contracts, less progress billings of $64,099 and $31,129 in 2017 and 2016, respectively	47,286	28,746
Inventories	124,515	105,542
Other current assets	14,895	13,884
Total current assets	392,792	323,483
Property, plant and equipment:
Land and land improvements	9,964	9,374
Buildings and leasehold improvements	88,469	62,822
Machinery and equipment	129,366	99,240
Construction in progress	4,599	5,423
Property, Plant and Equipment, Gross	232,398	176,859
Less accumulated depreciation and amortization	(99,650)	(84,454)
Net property, plant and equipment	132,748	92,405
Intangible assets, net	351,134	231,759
Goodwill	377,879	323,616
Other assets	5,891	7,108
Total Assets	1,260,444	978,371
Current liabilities:
Current maturities of long-term debt	20,000	20,000
Accounts payable	54,789	42,074
Advance payments on long-term contracts, less costs incurred of $59,772 and $35,266 in 2017 and 2016, respectively	22,451	16,187
Accrued salaries	32,259	28,769
Current portion of deferred revenue	28,583	27,212
Accrued other expenses	36,887	23,834
Total current liabilities	194,969	158,076
Pension obligations	30,223	39,842
Deferred tax liabilities	86,378	69,562
Other liabilities	21,956	5,782
Long-term debt	255,000	90,000
Total liabilities	588,526	363,262
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 30,468,824 and 30,364,183 shares in 2017 and 2016, respectively	305	304
Additional paid-in capital	289,785	290,588
Retained earnings	516,718	471,272
Accumulated other comprehensive loss, net of tax	(27,308)	(39,283)
Total stockholders' equity before Treasury Stock	779,500	722,881
Less treasury stock, at cost (4,635,622 and 4,647,322 common shares in 2017 and 2016, respectively)	(107,582)	(107,772)
Total shareholders' equity	671,918	615,109
Total Liabilities and Shareholders' Equity	$ 1,260,444	$ 978,371

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.