Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2020

Earnings Per Share [Abstract]

Summary of net income (loss) attributable to Archrock common stockholders used in the calculation of basic and diluted income (loss) per common share

The following table shows the calculation for net income (loss) attributable to Archrock common stockholders, which is used in the calculation of basic and diluted net income (loss) per common share attributable to Archrock common stockholders (in thousands):

	Year Ended December 31,
	2020		2019		2018
Income (loss) from continuing operations attributable to Archrock stockholders	$	(68,445)	$	97,603	$	21,063
Loss from discontinued operations, net of tax		—		(273)		—
Net income (loss) attributable to Archrock stockholders		(68,445)		97,330		21,063
Less: Earnings attributable to participating securities		(1,338)		(1,348)		(815)
Net income (loss) attributable to Archrock common stockholders	$	(69,783)	$	95,982	$	20,248

Schedule of potential shares of common stock that were included in computing diluted income (loss) attributable to Archrock common stockholders per common share

The following table shows the potential shares of common stock that were included in computing diluted net income (loss) per common share attributable to Archrock common stockholders (in thousands):

	Year Ended December 31,
	2020	2019	2018
Weighted average common shares outstanding including participating securities	152,827	139,317	110,843
Less: Weighted average participating securities outstanding	(1,999)	(1,825)	(1,538)
Weighted average common shares outstanding used in basic net income (loss) per common share	150,828	137,492	109,305
Net dilutive potential common shares issuable:
On exercise of options and vesting of performance-based restricted stock units	—	34	111
On settlement of ESPP shares	—	2	5
Weighted average common shares outstanding used in diluted net income (loss) per common share	150,828	137,528	109,421

Schedule of potential shares of common stock issuable, excluded from computation of diluted income (loss), attributable to Archrock common stockholders per common share

The following table shows the potential shares of common stock issuable that were excluded from computing diluted net income (loss) per common share attributable to Archrock common stockholders as their inclusion would have been anti-dilutive (in thousands):

	Year Ended December 31,
	2020	2019	2018
On exercise of options where exercise price is greater than average market value for the period	96	154	195
On exercise of options and vesting of performance-based restricted stock units	54	—	—
On settlement of ESPP shares	17	—	—
Net dilutive potential common shares issuable	167	154	195