Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 33,826	$ 13,592
Trade accounts receivable, net of allowances of $508 in 2023 and $538 in 2022	122,900	129,631
Inventories	92,128	72,113
Prepaid expenses and other current assets	21,575	23,112
Total current assets	270,429	238,448
Property, plant, and equipment:
Land and building	23,308	25,723
Machinery and equipment	309,082	318,693
Automobiles and trucks	10,379	11,832
Chemical plants	63,912	63,528
Construction in progress	4,461	7,660
Total property, plant, and equipment	411,142	427,436
Less accumulated depreciation	(305,063)	(325,856)
Net property, plant, and equipment	106,079	101,580
Other assets:
Patents, trademarks and other intangible assets, net of accumulated amortization of $49,904 in 2023 and $46,996 in 2022	30,132	32,955
Operating lease right-of-use assets	34,227	33,818
Investments	16,405	14,286
Other assets	15,147	13,279
Total other assets	95,911	94,338
Total assets	472,419	434,366
Current liabilities:
Trade accounts payable	50,322	49,121
Current portion of long-term debt	1,911	3
Compensation and employee benefits	31,090	30,958
Operating lease liabilities, current portion	8,745	7,795
Accrued taxes	10,777	9,913
Accrued liabilities and other	23,281	25,557
Current liabilities associated with discontinued operations	414	920
Total current liabilities	126,540	124,267
Long-term debt, net	156,748	156,455
Operating lease liabilities	28,013	28,108
Asset retirement obligations	14,132	13,671
Deferred income taxes	1,890	2,038
Other liabilities	3,959	3,430
Total long-term liabilities	204,742	203,702
Commitments and contingencies (Note 7)
Equity:
Common stock, par value 0.01 per share; 250,000,000 shares authorized at September 30, 2023 and December 31, 2022; 133,217,848 shares issued at September 30, 2023 and 131,800,975 shares issued at December 31, 2022	1,332	1,318
Additional paid-in capital	482,709	477,820
Treasury stock, at cost; 3,138,675 shares held at September 30, 2023 and December 31, 2022	(19,957)	(19,957)
Accumulated other comprehensive loss	(48,873)	(49,063)
Retained deficit	(272,818)	(302,493)
Total TETRA stockholders’ equity	142,393	107,625
Noncontrolling interests	(1,256)	(1,228)
Total equity	141,137	106,397
Total liabilities and equity	$ 472,419	$ 434,366