CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2017	Sep. 30, 2017
Current assets:
Cash and cash equivalents	$ 48,995	$ 60,143
Restricted cash	11,770	8,434
Accounts receivable:
Trade and other receivables	12,182	12,378
Long-term contracts	390,916	416,808
Allowance for doubtful accounts	(429)	(436)
Accounts receivable - net	402,669	428,750
Recoverable income taxes	2,156	5,360
Inventories	101,395	87,715
Other current assets	39,137	31,141
Total current assets	606,122	621,543
Long-term contract receivables	17,328	17,457
Long-term capitalized contract costs	54,491	56,471
Property, plant and equipment, net	114,714	113,686
Deferred income taxes	4,647	2,206
Goodwill	416,284	415,912
Purchased intangibles, net	90,713	98,495
Other assets	12,766	10,515
Total assets	1,317,065	1,336,285
Current liabilities:
Short-term borrowings	88,000	55,000
Trade accounts payable	104,707	95,837
Customer advances	54,446	57,477
Accrued compensation and other current liabilities	111,979	158,327
Income taxes payable	8,942	9,838
Total current liabilities	368,074	376,479
Long-term debt	199,769	199,761
Other long-term liabilities	70,099	70,414
Shareholders' equity:
Common stock	36,789	37,850
Retained earnings	784,699	794,485
Accumulated other comprehensive loss	(106,287)	(106,626)
Treasury stock at cost	(36,078)	(36,078)
Total shareholders' equity	679,123	689,631
Total liabilities and shareholders' equity	$ 1,317,065	$ 1,336,285