Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Numerator:
Net income attributable to Cactus Inc.	$ 166,014	$ 185,407	$ 169,171
Net income attributable to non-controlling interest	0	36,266	35,075
Net income attributable to Cactus Inc. - diluted	$ 166,014	$ 221,673	$ 204,246
Denominator:
Effect of dilutive shares (in shares)	450	13,522	14,819
Corporate effective interest rate, if-converted method		26.00%	26.00%
Class A Common Stock
Denominator:
Weighted average Class A shares outstanding - basic (in shares)	68,565	66,393	64,641
Weighted average Class A shares outstanding - diluted (in shares)	69,015	79,915	79,460
Earnings per Class A share - basic (in dollars per share)	$ 2.42	$ 2.79	$ 2.62
Earnings per Class A share - diluted (in dollars per share)	$ 2.41	$ 2.77	$ 2.57
Class B Common Stock
Denominator:
Excluded diluted earnings per share (in shares)	11,200