CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 10,886	$ 35,833	$ 53,079	$ 125,029
Foreign currency translation adjustments	533	(469)	329	(570)
Comprehensive income	11,419	35,364	53,408	124,459
Less: comprehensive income attributable to non-controlling interest	4,883	16,494	21,978	57,475
Comprehensive income attributable to Cactus Inc.	$ 6,536	$ 18,870	$ 31,430	$ 66,984