Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 179,102	$ 99,426
Accounts receivable, net of allowance of $5,563 and $5,572, respectively	259,358	224,550
Inventories, net	134,493	120,503
Prepaid expenses and other current assets	18,912	17,772
Total current assets	591,865	462,251
Property, plant, and equipment, net	108,314	107,603
Operating lease assets	41,134	44,918
Goodwill	511,590	513,383
Acquired intangibles	121,567	125,980
Other assets	2,471	2,316
Total assets	1,376,941	1,256,451
Current liabilities:
Accounts payable	140,888	92,124
Accrued expenses	85,099	88,719
Billings in excess of cost	59,498	44,735
Total current liabilities	285,485	225,578
Deferred income taxes	57,110	57,103
Non-current operating lease liabilities	32,601	35,989
Other non-current liabilities	26,074	22,783
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; 34,274 and 34,219 shares issued and outstanding in 2024 and 2023	343	342
Additional paid-in capital	338,978	332,621
Retained earnings	795,655	738,511
Accumulated other comprehensive loss	(3,496)	(2,114)
Cost of 3,797 and 3,778 common shares held in treasury in 2024 and 2023	(155,809)	(154,362)
Total stockholders’ equity	975,671	914,998
Total liabilities and shareholders' equity	$ 1,376,941	$ 1,256,451