Equity (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		12 Months Ended	98 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025	Mar. 31, 2026	Jun. 06, 2023
Equity
CW Unit redemptions (in shares)	200	0
Cash dividend declared (in dollars per share)	$ 0.14	$ 0.13
Pro rata distributions made to other members	$ 1,502	$ 5,089
Share Repurchase Program
Equity
Authorized amount of stock repurchase					$ 150,000
Common stock | Share Repurchase Program
Equity
Common stock authorized repurchase amount	$ 146,300			$ 146,300
Cactus Companies
Equity
Ownership interest (in percent)	86.60%
Cactus LLC
Equity
Ownership interest (in percent)			86.30%
Cactus Inc
Equity
Cash distributions to unit holders	$ 9,600	30,400
CC Unit Holders other than Cactus, Inc.
Equity
Pro rata distributions made to other members	$ 1,500	$ 5,100
Class A Common Stock
Equity
Common stock, shares outstanding (in shares)	69,416		68,890	69,416
Shares outstanding, total voting power (in percent)	86.60%			86.60%
Cash dividend declared (in dollars per share)	$ 0.14	$ 0.13
Dividends declared	$ 9,800	$ 9,000
Dividends paid	$ 10,200	$ 9,200
Class A Common Stock | Cactus Companies LLC Agreement
Equity
CW Unit redemptions (in shares)				49,800
Class B Common Stock
Equity
Common stock, shares outstanding (in shares)	10,758		10,958	10,758
Shares outstanding, total voting power (in percent)	13.40%			13.40%