Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (19,100)	$ (62,763)
Foreign currency translation adjustment, including taxes of $0 and $0 in 2015 and $1,198 and $1,644 in 2014	(406)	1,283
Comprehensive income	(19,506)	(61,480)
Comprehensive (income) loss attributable to noncontrolling interest	8,086	9,500
Comprehensive income (loss) attributable to TETRA stockholders	$ (11,420)	$ (51,980)