CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenues
Total revenues	$ 438,589	$ 348,566	$ 628,414
Costs and expenses
Selling, general and administrative expenses	46,021	39,715	51,657
Severance expenses	0	1,864	0
Total costs and expenses	363,162	278,527	445,264
Income from operations	75,427	70,039	183,150
Interest income (expense), net	(774)	701	879
Other income (expense), net	492	(555)	4,294
Income before income taxes	75,145	70,185	188,323
Income tax expense	7,675	10,970	32,020
Net income	67,470	59,215	156,303
Less: net income attributable to non-controlling interest	17,877	24,769	70,691
Net income attributable to Cactus Inc.	$ 49,593	$ 34,446	$ 85,612
Class A Common Stock
Costs and expenses
Earnings per Class A share - basic (in dollars per share)	$ 0.90	$ 0.73	$ 1.90
Earnings per Class A share - diluted (in dollars per share)	$ 0.83	$ 0.72	$ 1.88
Weighted average Class A shares outstanding - basic (in shares)	55,398	47,457	44,983
Weighted average Class A shares outstanding - diluted (in shares)	76,107	75,495	75,353
Product revenue
Revenues
Total revenues	$ 280,907	$ 206,801	$ 357,087
Costs and expenses
Cost of revenue	189,083	131,728	220,615
Rental revenue
Revenues
Total revenues	61,629	66,169	141,816
Costs and expenses
Cost of revenue	54,377	49,077	69,829
Field service and other revenue
Revenues
Total revenues	96,053	75,596	129,511
Costs and expenses
Cost of revenue	$ 73,681	$ 56,143	$ 103,163