Equity (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended		12 Months Ended	74 Months Ended
	Jan. 31, 2023	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023	Mar. 31, 2024	Jun. 06, 2023
Equity
Issuances of common stock			$ 169,369
CW Unit redemptions (in shares)		0	0
Cash dividend declared (in dollars per share)		$ 0.12	$ 0.11
Share repurchases		$ 3,372
Pro rata distributions made to other members		1,684	$ 1,645
Share Repurchase Program
Equity
Authorized amount of stock repurchase						$ 150,000
Additional Paid-In Capital
Equity
Costs associated with stock issuance	$ 2,200
Issuances of common stock			$ 143,302
Share repurchases		$ 2,996
Common stock | Share Repurchase Program
Equity
Common stock purchased and retired (in shares)		86,599
Share repurchases		$ 3,400
Average stock repurchased price (in dollars per share)		$ 38.92
Common stock authorized repurchase amount		$ 146,300			$ 146,300
FlexSteel | Key Employee
Equity
Issuance of common stock (in shares)			128,150
Issuances of common stock			$ 6,500
Vesting period			1 year
Cactus Companies
Equity
Ownership interest		82.40%
Cactus LLC
Equity
Ownership interest				82.30%
Cactus Inc
Equity
Cash distributions to unit holders		$ 7,800	$ 7,100
CC Unit Holders other than Cactus, Inc.
Equity
Pro rata distributions made to other members		$ 1,700	$ 1,600
Class A Common Stock
Equity
Common stock, shares outstanding (in shares)		65,518,000		65,409,000	65,518,000
Shares outstanding, percentage of total voting power		82.40%			82.40%
Cash dividend declared (in dollars per share)		$ 0.12	$ 0.11
Dividends declared		$ 8,000	$ 7,100
Dividends paid		8,100	$ 7,400
Class A Common Stock | Common stock
Equity
Issuance of common stock (in shares)			3,352,000
Issuances of common stock			$ 34
Share repurchases		$ 1
Class A Common Stock | Additional Offering
Equity
Shares sold (in shares)	3,224,300
Price of stock (in dollars per share)	$ 51.36
Cash consideration	$ 165,600
Underwriting discounts	$ 6,900
Class A Common Stock | Cactus Companies LLC Agreement
Equity
CW Unit redemptions (in shares)					46,500,000
Class B Common Stock
Equity
Common stock, shares outstanding (in shares)		14,034,000		14,034,000	14,034,000
Shares outstanding, percentage of total voting power		17.60%			17.60%
Class B Common Stock | Cactus Companies
Equity
Shares owned per units held (in shares)		1			1