Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 137,618	$ 297,006
Accounts receivable, net	196,334	140,283
Inventories	83,048	98,913
Other current assets	17,527	8,351
Total current assets	434,527	544,553
Property, plant, and equipment, net	95,075	95,830
Operating lease assets	28,573
Goodwill	327,983	323,671
Acquired intangibles	96,185	96,375
Other assets	2,475	1,216
Total assets	984,818	1,061,645
Current liabilities:
Accounts payable	103,630	79,136
Accrued expenses	97,883	87,074
Billings in excess of cost	38,672	17,857
Current maturities of long-term debt	0	208,805
Total current liabilities	240,185	392,872
Long-term debt	0	1,600
Deferred income taxes	36,672	36,530
Non-current operating lease liabilities	20,461
Other non-current liabilities	30,287	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; 33,145 shares and 32,887 shares issued and outstanding in 2019 and 2018	332	329
Additional paid-in capital	293,009	282,525
Retained earnings	391,311	338,995
Accumulated other comprehensive loss	(6,022)	(7,234)
Cost of 888 and 796 common shares held in treasury in 2019 and 2018	(21,417)	(17,922)
Total shareholders’ equity	657,213	596,693
Total liabilities and shareholders' equity	$ 984,818	$ 1,061,645