Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2021

Earnings Per Share [Abstract]

Summary of Basic and Diluted Earnings Per Share

The following table summarizes the basic and diluted earnings per share calculations:

	Year Ended December 31,
	2021		2020		2019
Numerator:
Net income attributable to Cactus Inc.—basic	$	49,593	$	34,446	$	85,612
Net income attributable to non-controlling interest(1)	13,744		19,934		56,012
Net income attributable to Cactus Inc.—diluted(1)	$	63,337	$	54,380	$	141,624
Denominator:
Weighted average Class A shares outstanding—basic	55,398		47,457		44,983
Effect of dilutive shares	20,709		28,038		30,370
Weighted average Class A shares outstanding—diluted	76,107		75,495		75,353
Earnings per Class A share—basic	$	0.90	$	0.73	$	1.90
Earnings per Class A share—diluted(1)	$	0.83	$	0.72	$	1.88

(1)The numerator is adjusted in the calculation of diluted earnings per share under the if-converted method to include net income attributable to the non-controlling interest calculated as its pre-tax income adjusted for a corporate effective tax rate of 27.0% for the year ended December 31, 2021 and 24.0% for the years ended December 31, 2020 and 2019.