Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Numerator:
Net income attributable to Cactus Inc.	$ 24,750	$ 27,144	$ 67,644	$ 47,760
Net income attributable to non-controlling interest	0	6,759	13,114	11,779
Net income attributable to Cactus Inc. - diluted	$ 24,750	$ 33,903	$ 80,758	$ 59,539
Denominator:
Effect of dilutive shares (in shares)	437	15,799	15,357	16,353
Corporate effective income tax rate, if-converted method			26.00%	25.00%
Class A Common Stock
Denominator:
Weighted average Class A Shares Outstanding - basic (in shares)	64,566	60,523	64,155	59,909
Weighted average Class A shares outstanding - diluted (in shares)	65,003	76,322	79,512	76,262
Earnings per Class A share - basic (in dollars per share)	$ 0.38	$ 0.45	$ 1.05	$ 0.80
Earnings per Class A share - diluted (in dollars per share)	$ 0.38	$ 0.44	$ 1.02	$ 0.78
Class B Common Stock
Denominator:
Weighted average Class A shares outstanding - diluted (in shares)	14,900