Net Income (Loss) Attributable to ORBCOMM Inc. Common Stockholders (Tables)

12 Months Ended

Dec. 31, 2018

Earnings Per Share [Abstract]

Summary of Basic and Diluted Calculations of EPS

The following sets forth the basic and diluted EPS calculations for the years ended December 31, 2018, 2017 and 2016:

	Years ended December 31,
	2018			2017			2016
Net loss attributable to ORBCOMM Inc. common    stockholders	$	(26,262	)	$	(61,296	)	$	(23,525	)
Weighted average number of common shares outstanding:
Basic number of common shares outstanding		77,603			72,882			70,907
Dilutive effect of grants of stock options, unvested    SARs and RSUs and shares of Series A convertible    preferred stock		—			—			—
Diluted number of common shares outstanding		77,603			72,882			70,907
Earnings per share:
Basic	$	(0.34	)	$	(0.84	)	$	(0.33	)
Diluted	$	(0.34	)	$	(0.84	)	$	(0.33	)

Summary of Net Loss Attributable to ORBCOMM Inc. Common Stockholders

The computation of net loss attributable to ORBCOMM Inc. common stockholders for the years ended December 31, 2018, 2017 and 2016 is as follows:

	Years Ended December 31,
	2018			2017			2016
Net loss attributable to ORBCOMM Inc.	$	(26,244	)	$	(61,284	)	$	(23,511	)
Preferred stock dividends on Series A convertible preferred    stock		(18	)		(12	)		(14	)
Net loss attributable to ORBCOMM Inc. common    stockholders	$	(26,262	)	$	(61,296	)	$	(23,525	)