Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 84,571	$ 65,672
Accounts receivable, net of allowance for doubtful accounts of $2,092 and $2,080 at December 31, 2020 and 2019, respectively	98,214	93,444
Inventories, net	70,620	83,893
Prepaid expenses	6,598	4,385
Prepaid income taxes	3,447	5,098
Other current assets	3,438	2,454
Total current assets	266,888	254,946
Property, plant and equipment, net	228,096	216,859
Goodwill	529,463	523,998
Intangible assets with finite lives, net	121,660	143,924
Right of use assets	8,410	7,338
Other assets	11,326	8,617
Total assets	1,165,843	1,155,682
Current liabilities:
Trade accounts payable	23,742	37,267
Accrued expenses	29,655	24,604
Accrued compensation and other benefits	19,753	11,057
Dividends payable	18,941	16,855
Lease liabilities - current	2,337	2,475
Total current liabilities	94,428	92,258
Revolving loan	163,569	248,569
Deferred income taxes	51,359	56,431
Lease liabilities - non-current	6,079	4,827
Derivative liabilities	11,658	2,103
Other long-term obligations	10,517	7,827
Total liabilities	337,610	412,015
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; 32,448,705 shares issued and 32,372,621 outstanding at December 31, 2020 and 32,405,796 shares issued and 32,201,917 shares outstanding at December 31, 2019, respectively	2,164	2,161
Additional paid-in capital	173,029	174,218
Retained earnings	656,740	590,921
Accumulated other comprehensive income/(loss)	4,173	(5,564)
Treasury stock, at cost: 76,084 and 203,879 shares at December 31, 2020 and 2019, respectively	(7,873)	(18,069)
Total stockholders’ equity	828,233	743,667
Total liabilities and stockholders’ equity	$ 1,165,843	$ 1,155,682