Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenues from external customers		$ 102,326	$ 96,070	$ 179,650	$ 228,773
Cost of Goods and Services Sold [Abstract]
Depreciation, amortization, and accretion		8,236	9,726	17,187	19,277
Impairment and other charges		449	0	449	0
Insurance recoveries associated with damaged equipment		0	74	110	74
Total cost of revenues		85,893	80,259	155,348	183,925
Gross profit		16,433	15,811	24,302	44,848
General and administrative expense		17,351	23,862	37,363	44,210
Interest expense, net		3,886	4,604	8,290	9,896
Warrants fair value adjustment expense (income)		2,698	11	3,021	(327)
Other general corporate income, net		(2,232)	(541)	(7,327)	(520)
Loss before taxes and discontinued operations		(5,270)	(12,125)	(17,045)	(8,411)
Provision for income taxes		1,384	1,054	1,552	1,776
Income (loss) before taxes		(6,654)	(13,179)	(18,597)	(10,187)
Total loss from discontinued operations		(126)	(23,788)	120,864	(37,156)
Net income (loss)		(6,780)	(36,967)	102,267	(47,343)
(Income) loss attributable to noncontrolling interest	[1]	27	15,712	(306)	24,537
Net income (loss) attributable to TETRA stockholders		$ (6,753)	$ (21,255)	$ 101,961	$ (22,806)
Basic and diluted net income (loss) per common share:
Income (Loss) from Continuing Operations, Per Basic Share		$ (0.05)	$ (0.11)	$ (0.15)	$ (0.08)
Income (Loss) from Continuing Operations, Per Diluted Share		(0.05)	(0.11)	(0.15)	(0.08)
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share		0	(0.06)	0.96	(0.10)
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share		0	(0.06)	0.96	(0.10)
Net income (loss) attributable to TETRA stockholders, per basic share		(0.05)	(0.17)	0.81	(0.18)
Net income (loss) attributable to TETRA stockholders, per diluted share		$ (0.05)	$ (0.17)	$ 0.81	$ (0.18)
Weighted Average Number of Shares Outstanding, Basic		126,583	125,886	126,365	125,736
Weighted Average Number of Shares Outstanding, Diluted		126,583	125,886	126,365	125,736
Product sales
Revenues from external customers		$ 62,583	$ 67,251	$ 107,615	$ 137,466
Cost of Goods and Services Sold [Abstract]
Cost of product sales		42,477	45,031	74,460	90,319
Services
Revenues from external customers		39,743	28,819	72,035	91,307
Cost of Goods and Services Sold [Abstract]
Cost of product sales		$ 34,731	$ 25,576	$ 63,362	$ 74,403

[1] (Income) loss attributable to noncontrolling interest includes zero and $15,781 loss for the three-month periods ended June 30, 2021 and 2020, respectively, and $333 income and $24,615 loss for the six-month periods ended June 30, 2021 and 2020, respectively, related to discontinued operations.