Equity (Details) - USD ($) $ / shares in Units, $ in Thousands			1 Months Ended	3 Months Ended		12 Months Ended	62 Months Ended
	Jan. 13, 2023	Mar. 12, 2021	Jan. 31, 2023	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	Mar. 31, 2023
Equity
Issuances of common stock				$ 169,369
Cash dividend declared (in dollars per share)				$ 0.11	$ 0.11
Pro rata distributions made to other members				$ 1,645	$ 1,654
Additional Paid-In Capital
Equity
Costs associated with stock issuance			$ 2,200
Issuances of common stock				$ 143,302
FlexSteel | Key Employee
Equity
Issuance of common stock (in shares)				128,150
Issuances of common stock				$ 6,500
Accrued expenses and other current liabilities				600			$ 600
Selling, general and administrative expenses				$ 100
Cactus Companies
Equity
Ownership interest				81.10%
Cactus LLC
Equity
Ownership interest						80.30%
Cactus Inc
Equity
Cash distributions to unit holders				$ 7,100	6,300
CC Unit Holders other than Cactus, Inc.
Equity
Pro rata distributions made to other members				$ 1,600	1,700
Class A Common Stock
Equity
Common stock, shares outstanding (in shares)				64,448,000		60,903,000	64,448,000
Shares outstanding, percentage of total voting power				81.10%			81.10%
Cash dividend declared (in dollars per share)				$ 0.11
Dividends declared				$ 7,100	6,600
Dividends paid				$ 7,400	$ 6,700
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)							45,600,000
Class A Common Stock | March 2021 Secondary Offering
Equity
CW Unit redemptions (in shares)		1,000,000
Class B Common Stock
Equity
Common stock, shares outstanding (in shares)				14,978,000		14,978,000	14,978,000
Shares outstanding, percentage of total voting power				18.90%			18.90%