CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Dec. 31, 2023	Sep. 30, 2023
Current assets:
Cash and cash equivalents	$ 51,396	$ 41,866
Accounts receivable, net of allowance for credit losses of $2,274 and $2,264, respectively	194,395	198,557
Contract assets, net	138,393	138,633
Inventories	202,577	184,067
Other current assets	16,441	17,972
Total current assets	603,202	581,095
Property, plant and equipment, net of accumulated depreciation of $180,909 and $174,698, respectively	159,262	155,484
Intangible assets, net of accumulated amortization of $212,750 and $204,881, respectively	422,053	392,124
Goodwill	537,601	503,177
Operating lease assets	38,685	39,839
Other assets	11,723	11,495
Total assets	1,772,526	1,683,214
Current liabilities:
Current maturities of long-term debt and short-term borrowings	20,000	20,000
Accounts payable	77,960	86,973
Contract liabilities, net	121,149	112,277
Accrued salaries	33,944	43,814
Accrued other expenses	51,640	51,587
Total current liabilities	304,693	314,651
Deferred tax liabilities	83,802	75,531
Non-current operating lease liabilities	35,709	36,554
Other liabilities	42,228	43,336
Long-term debt	152,000	82,000
Total liabilities	618,432	552,072
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 30,800,586 and 30,781,699 shares, respectively	308	308
Additional paid-in capital	305,283	304,850
Retained earnings	1,002,420	989,315
Accumulated other comprehensive loss, net of tax	(14,555)	(23,969)
Total stockholders' equity before treasury stock	1,293,456	1,270,504
Less treasury stock, at cost: 4,995,414 and 4,995,414 common shares, respectively	(139,362)	(139,362)
Total shareholders' equity	1,154,094	1,131,142
Total liabilities and shareholders' equity	$ 1,772,526	$ 1,683,214