Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 17,608	$ 12,849
Accounts receivable, net of allowance of $3,746 and $3,738, respectively	217,156	236,444
Inventories, net	170,360	176,207
Prepaid expenses and other current assets	18,813	21,467
Total current assets	423,937	446,967
Property, plant, and equipment, net	109,584	96,885
Operating lease assets	26,502	18,120
Goodwill	512,363	510,942
Acquired intangibles	137,526	141,504
Other assets	701	483
Total assets	1,210,613	1,214,901
Current liabilities:
Accounts payable	106,582	172,286
Accrued expenses	73,721	67,993
Billings in excess of cost	35,017	46,711
Total current liabilities	215,320	286,990
Long-term debt	88,762	23,781
Deferred income taxes	47,088	40,278
Non-current operating lease liabilities	19,041	11,390
Other non-current liabilities	18,303	27,204
Stockholders’ equity:
Preferred stock, $0.01 par value; authorized 10,000 shares; none outstanding	0	0
Common stock, $0.01 par value; authorized 100,000 shares; 34,060 and 33,799 shares issued and outstanding in 2022 and 2021	340	338
Additional paid-in capital	322,873	314,541
Retained earnings	627,978	545,572
Accumulated other comprehensive (loss) income	(3,432)	187
Cost of 3,199 and 1,107 common shares held in treasury in 2022 and 2021	(125,660)	(35,380)
Total stockholders’ equity	822,099	825,258
Total liabilities and shareholders' equity	$ 1,210,613	$ 1,214,901