Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Numerator:
Net income attributable to Cactus Inc.	$ 49,828	$ 24,750	$ 88,793	$ 67,644
Net income attributable to non-controlling interest	0	0	18,432	13,114
Net income attributable to Cactus Inc. - diluted	$ 49,828	$ 24,750	$ 107,225	$ 80,758
Denominator:
Effect of dilutive shares (in shares)	437	437	13,926	15,357
Corporate effective income tax rate, if-converted method			26.00%	26.00%
Class A Common Stock
Denominator:
Weighted average Class A Shares Outstanding - basic (in shares)	66,142	64,566	65,760	64,155
Weighted average Class A shares outstanding - diluted (in shares)	66,579	65,003	79,686	79,512
Earnings per Class A share - basic (in dollars per share)	$ 0.75	$ 0.38	$ 1.35	$ 1.05
Earnings per Class A share - diluted (in dollars per share)	$ 0.75	$ 0.38	$ 1.35	$ 1.02
Class B Common Stock
Denominator:
Weighted average Class A shares outstanding - diluted (in shares)	13,400	14,900