CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2020	Sep. 30, 2020
Current assets:
Cash and cash equivalents	$ 57,362	$ 52,560
Accounts receivable, net	143,675	144,082
Contract assets, net	93,762	96,746
Inventories, net	144,054	136,189
Other current assets	13,392	17,053
Total current assets	452,245	446,630
Property, plant and equipment, net of accumulated depreciation of $135,500 and $130,534, respectively	141,538	139,870
Intangible assets, net of accumulated amortization of $134,005 and $129,063, respectively	347,437	346,632
Goodwill	411,161	408,063
Operating lease assets	20,315	21,390
Other assets	10,879	10,938
Total assets	1,383,575	1,373,523
Current liabilities:
Current maturities of long-term debt and short-term borrowings	21,842	22,368
Accounts payable	44,198	50,525
Contract liabilities, net	112,286	100,551
Accrued salaries	27,197	32,149
Accrued other expenses	49,100	50,436
Total current liabilities	254,623	256,029
Deferred tax liabilities	60,400	60,938
Non-current operating lease liabilities	15,746	16,785
Other liabilities	39,207	38,176
Long-term debt	34,000	40,000
Total liabilities	403,976	411,928
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 30,645,625 and 30,645,625 shares, respectively	306	306
Additional paid-in capital	294,735	293,682
Retained earnings	790,000	778,398
Accumulated other comprehensive income (loss), net of tax	1,692	(3,657)
Total stockholders' equity before treasury stock	1,086,733	1,068,729
Less treasury stock, at cost: 4,607,911 and 4,607,911 common shares, respectively	(107,134)	(107,134)
Total shareholders' equity	979,599	961,595
Total liabilities and shareholders' equity	$ 1,383,575	$ 1,373,523