CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2024	Sep. 30, 2023
Current assets:
Cash and cash equivalents	$ 59,436	$ 41,866
Accounts receivable, net of allowance for credit losses of $2,260 and $2,264, respectively	187,535	198,557
Contract assets	139,303	138,633
Inventories	211,338	184,067
Other current assets	24,310	17,972
Total current assets	621,922	581,095
Property, plant and equipment, net of accumulated depreciation of $185,799 and $174,698, respectively	161,811	155,484
Intangible assets, net of accumulated amortization of $221,321 and $204,881, respectively	414,872	392,124
Goodwill	535,661	503,177
Operating lease assets	38,322	39,839
Other assets	11,603	11,495
Total assets	1,784,191	1,683,214
Current liabilities:
Current maturities of long-term debt	20,000	20,000
Accounts payable	81,961	86,973
Contract liabilities	107,357	112,277
Accrued salaries	34,637	43,814
Accrued other expenses	44,975	51,587
Total current liabilities	288,930	314,651
Deferred tax liabilities	80,648	75,531
Non-current operating lease liabilities	35,444	36,554
Other liabilities	41,759	43,336
Long-term debt	171,000	82,000
Total liabilities	617,781	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 30,807,826 and 30,781,699 shares, respectively	308	308
Additional paid-in capital	308,065	304,850
Retained earnings	1,023,578	989,315
Accumulated other comprehensive loss, net of tax	(19,300)	(23,969)
Total stockholders' equity before treasury stock	1,312,651	1,270,504
Less treasury stock, at cost: 5,048,645 and 4,995,414 common shares, respectively	(146,241)	(139,362)
Total shareholders' equity	1,166,410	1,131,142
Total liabilities and shareholders' equity	$ 1,784,191	$ 1,683,214