Equity (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended	92 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024	Sep. 30, 2025	Jun. 06, 2023
Equity
CW Unit redemptions (in shares)			400	1,100
Cash dividend declared (in dollars per share)	$ 0.14	$ 0.13	$ 0.40	$ 0.37
Pro rata distributions made to other members			$ 10,303	$ 10,444
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			$ 146,300
Cactus Companies
Equity
Ownership interest			86.20%
Cactus LLC
Equity
Ownership interest					85.60%
Cactus Inc
Equity
Cash distributions to unit holders			$ 62,300	51,900
CC Unit Holders other than Cactus, Inc.
Equity
Pro rata distributions made to other members			$ 10,300	$ 10,400
Class A Common Stock
Equity
Common stock, shares outstanding (in shares)	68,840		68,840		68,152	68,840
Shares outstanding, percentage of total voting power	86.20%		86.20%			86.20%
Cash dividend declared (in dollars per share)			$ 0.40	$ 0.37
Dividends declared			$ 28,000	$ 24,900
Dividends paid			$ 27,800	$ 24,800
Class A Common Stock | Cactus Companies LLC Agreement
Equity
CW Unit redemptions (in shares)						49,600
Class B Common Stock
Equity
Common stock, shares outstanding (in shares)	11,007		11,007		11,433	11,007
Shares outstanding, percentage of total voting power	13.80%		13.80%			13.80%