CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenues
Total revenues	$ 628,414	$ 544,135	$ 341,191
Costs and expenses
Selling, general and administrative expenses	51,657	40,529	27,177
Total costs and expenses	445,264	366,434	252,328
Income from operations	183,150	177,701	88,863
Interest income (expense), net	879	(3,595)	(20,767)
Other income (expense), net	4,294	(4,305)
Income before income taxes	188,323	169,801	68,096
Income tax expense	32,020	19,520	1,549
Net income	156,303	150,281	66,547
Less: pre-IPO net income attributable to Cactus LLC		13,648	66,547
Less: net income attributable to non-controlling interest	70,691	84,950
Net income attributable to Cactus Inc.	$ 85,612	$ 51,683
Earnings per Class A share - basic		$ 1.60
Earnings per Class A share - diluted	$ 1.88	$ 1.58
Product revenue
Revenues
Total revenues	$ 357,087	$ 290,496	189,091
Costs and expenses
Cost of revenue	220,615	174,675	124,030
Rental revenue
Revenues
Total revenues	141,816	133,418	77,469
Costs and expenses
Cost of revenue	69,829	55,015	40,519
Field service and other revenue
Revenues
Total revenues	129,511	120,221	74,631
Costs and expenses
Cost of revenue	$ 103,163	$ 96,215	$ 60,602
Class A Common Stock
Costs and expenses
Earnings per Class A share - basic	$ 1.90	$ 1.60
Earnings per Class A share - diluted	$ 1.88	$ 1.58
Weighted average Class A shares outstanding - basic	44,983	32,329
Weighted average Class A shares outstanding - diluted	75,353	32,695