Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 64,466	$ 103,239
Accounts receivable, net of allowance for doubtful accounts of $1,164 and $928 at March 31, 2022 and December 31, 2021 respectively	136,974	117,408
Inventories, net	108,411	91,058
Prepaid expenses	5,383	6,116
Other current assets	4,570	4,411
Total current assets	319,804	322,232
Property, plant and equipment, net	240,419	237,517
Goodwill	522,587	523,949
Intangible assets with finite lives, net	88,525	94,665
Right of use assets - operating leases	6,901	6,929
Right of use assets - finance lease	2,308	2,359
Derivative assets	882	0
Other assets	13,482	11,674
Total assets	1,194,908	1,199,325
Current liabilities:
Trade accounts payable	46,819	56,243
Accrued expenses	53,957	43,411
Accrued compensation and other benefits	10,325	19,567
Dividends payable	129	20,886
Income taxes payable	9,936	1,334
Operating lease liabilities - current	2,194	2,194
Finance lease liabilities - current	169	167
Total current liabilities	123,529	143,802
Revolving loan	128,569	108,569
Deferred income taxes	47,033	46,455
Operating lease liabilities - non-current	4,730	4,811
Finance lease liabilities - non-current	2,260	2,303
Derivative liabilities	0	2,658
Other long-term obligations	15,105	13,712
Total liabilities	321,226	322,310
Commitments and contingencies (Note 15)
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; 32,116,069 shares issued and outstanding at March 31, 2022 and 32,287,150 shares issued and outstanding at December 31, 2021, respectively	2,142	2,154
Additional paid-in capital	116,771	147,716
Retained earnings	761,058	732,138
Accumulated other comprehensive loss	(6,289)	(4,993)
Total stockholders' equity	873,682	877,015
Total liabilities and stockholders' equity	$ 1,194,908	$ 1,199,325