Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 73,959	$ 65,672
Accounts receivable, net of allowance for doubtful accounts of $2,511 and $2,080 at March 31, 2020 and December 31, 2019 respectively	105,867	93,444
Inventories	83,196	83,893
Prepaid expenses	4,134	4,385
Prepaid income taxes	527	5,098
Other current assets	2,998	2,454
Total current assets	270,681	254,946
Property, plant and equipment, net	215,279	216,859
Goodwill	522,785	523,998
Intangible assets with finite lives, net	136,515	143,924
Right of use assets	6,912	7,338
Other assets	9,940	8,617
Total assets	1,162,112	1,155,682
Current liabilities:
Trade accounts payable	23,630	37,267
Accrued expenses	35,848	24,604
Accrued compensation and other benefits	9,826	11,057
Dividends payable	137	16,855
Lease liabilities - current	2,279	2,475
Total current liabilities	71,720	92,258
Revolving loan	253,569	248,569
Deferred income taxes	57,095	56,431
Lease liabilities - non-current	4,336	4,827
Derivative liabilities	443	2,103
Other long-term obligations	8,678	7,827
Total liabilities	395,841	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, $0.0667 par value. Authorized 120,000,000 shares; 32,447,415 shares issued and 32,316,842 shares outstanding at March 31, 2020 and 32,405,796 shares issued and 32,201,917 outstanding at December 31, 2019, respectively	2,164	2,161
Additional paid-in capital	173,581	174,218
Retained earnings	610,689	590,921
Accumulated other comprehensive loss	(8,469)	(5,564)
Treasury stock, at cost: 130,573 and 203,879 shares at March 31, 2020 and December 31, 2019, respectively	(11,694)	(18,069)
Total stockholders' equity	766,271	743,667
Total liabilities and stockholders' equity	$ 1,162,112	$ 1,155,682