Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 65,672	$ 54,268
Accounts receivable, net of allowance for doubtful accounts of $2,080 and $610 at December 31, 2019 and 2018, respectively	93,444	99,545
Inventories	83,893	67,187
Prepaid expenses	4,385	3,830
Prepaid income taxes	5,098	0
Other current assets	2,454	1,484
Total current assets	254,946	226,314
Property, plant and equipment, net	216,859	190,919
Goodwill	523,998	447,995
Intangible assets with finite lives, net	143,924	109,405
Right of use assets	7,338
Other assets	8,617	6,722
Total assets	1,155,682	981,355
Current liabilities:
Trade accounts payable	37,267	33,345
Accrued expenses	24,604	22,025
Accrued compensation and other benefits	11,057	11,022
Dividends payable	16,855	15,220
Income tax payable	0	444
Lease liabilities - current	2,475	0
Total current liabilities	92,258	82,056
Revolving loan	248,569	156,000
Deferred income taxes	56,431	44,309
Lease liabilities - non-current	4,827
Derivative liabilities	2,103	0
Other long-term obligations	7,827	7,372
Total liabilities	412,015	289,737
Commitments and contingencies (note 16)
Stockholders’ equity:
Preferred stock, $25 par value. Authorized 2,000,000 shares; none issued and outstanding	0	0
Common stock, $.0667 par value. Authorized 120,000,000 shares; 32,405,796 shares issued and 32,201,917 outstanding at December 31, 2019 and 32,256,915 shares issued and 32,256,209 shares outstanding at December 31, 2018, respectively	2,161	2,151
Additional paid-in capital	174,218	165,098
Retained earnings	590,921	528,027
Accumulated other comprehensive loss	(5,564)	(3,602)
Treasury stock, at cost: 203,879 and 706 shares at December 31, 2019 and 2018, respectively	(18,069)	(56)
Total stockholders’ equity	743,667	691,618
Total liabilities and stockholders’ equity	$ 1,155,682	$ 981,355