CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenues
Total revenues	$ 138,543	$ 81,877	$ 253,653	$ 140,380
Costs and expenses
Selling, general and administrative expenses	9,851	7,334	18,965	13,437
Total costs and expenses	92,056	59,804	171,949	108,313
Income from operations	46,487	22,073	81,704	32,067
Interest expense, net	(248)	(5,186)	(3,100)	(10,172)
Other income (expense), net			(4,305)
Income before income taxes	46,239	16,887	74,299	21,895
Income tax expense	4,697	309	6,349	463
Net income	41,542	16,578	67,950	21,432
Less: Pre-IPO net income attributable to Cactus LLC		16,578	13,648	21,432
Less: net income attributable to non-controlling interest	29,208		38,215
Net income attributable to Cactus Inc.	$ 12,334		$ 16,087
Earnings per Class A Share - basic	$ 0.47		$ 0.61
Earnings per Class A Share - diluted	$ 0.46		$ 0.60
Weighted average Class A Shares outstanding - diluted	26,779		26,734
Product revenue
Revenues
Total revenues	$ 73,281	45,245	$ 132,207	78,283
Costs and expenses
Cost of revenue	45,015	29,496	82,081	52,691
Rental revenue
Revenues
Total revenues	34,944	18,805	64,089	31,780
Costs and expenses
Cost of revenue	13,952	9,214	26,128	17,487
Field service and other revenue
Revenues
Total revenues	30,318	17,827	57,357	30,317
Costs and expenses
Cost of revenue	$ 23,238	$ 13,760	$ 44,775	$ 24,698
Class A Common Stock
Costs and expenses
Earnings per Class A Share - basic	$ 0.47		$ 0.61
Earnings per Class A Share - diluted	$ 0.46		$ 0.60
Weighted average Class A Shares outstanding - basic	26,450,000		26,450,000
Weighted average Class A Shares outstanding - diluted	26,779,000		26,734,000