CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 67,470	$ 59,215	$ 156,303
Foreign currency translation adjustments	(567)	1,375	368
Comprehensive income	66,903	60,590	156,671
Less: comprehensive income attributable to non-controlling interest	17,632	25,362	70,581
Comprehensive income attributable to Cactus Inc.	$ 49,271	$ 35,228	$ 86,090