Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 191,363	$ 297,006
Accounts receivable, net	147,515	140,283
Inventories	78,476	98,913
Prepaid expenses and other current assets	19,748	8,351
Total current assets	437,102	544,553
Property, plant, and equipment, net	95,409	95,830
Operating lease assets	27,662
Goodwill	329,705	323,671
Acquired intangibles	92,592	96,375
Other assets	1,980	1,216
Total assets	984,450	1,061,645
Current liabilities:
Accounts payable	83,136	79,136
Accrued expenses	98,463	87,074
Billings in excess of cost	47,598	17,857
Current maturities of long-term debt	0	208,805
Total current liabilities	229,197	392,872
Long-term debt	0	1,600
Deferred income taxes	40,334	36,530
Non-current operating lease liabilities	19,669
Other non-current liabilities	21,286	33,950
Shareholders’ equity:
Preferred stock, $0.01 par value; authorized 10,000 shares; none outstanding	0	0
Common stock, $0.01 par value; authorized 50,000 shares; 33,192 and 32,887 shares issued in 2019 and 2018	332	329
Additional paid-in capital	295,582	282,525
Retained earnings	405,668	338,995
Accumulated other comprehensive loss	(5,391)	(7,234)
Cost of 906 and 796 common shares held in treasury in 2019 and 2018	(22,227)	(17,922)
Total shareholders’ equity	673,964	596,693
Total liabilities and shareholders' equity	$ 984,450	$ 1,061,645