Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Numerator:
Net income attributable to Cactus Inc.	$ 32,906	$ 44,223
Redeemable non-controlling interest	81,507	0
Net (loss) income attributable to Cactus Inc. including accretion of redeemable non-controlling interest to redemption value	(48,601)	44,223
Net(loss) income attributable to Cactus Inc.—diluted	$ (48,601)	$ 44,223
Denominator:
Effect of dilutive shares (in shares)	0	470
Restricted Stock Units And Performance Stock Units
Denominator:
Excluded diluted earnings per share (in shares)	700
Class A Common Stock
Denominator:
Weighted average Class A Shares Outstanding - basic (in shares)	69,026	68,194
Weighted average Class A shares outstanding - diluted (in shares)	69,026	68,664
(Loss) earnings per Class A share—basic (in dollars per share)	$ (0.70)	$ 0.65
(Loss) earnings per Class A share—diluted (in dollars per share)	$ (0.70)	$ 0.64
Class B Common Stock
Denominator:
Weighted average Class A shares outstanding - diluted (in shares)		11,400
Excluded diluted earnings per share (in shares)	10,900