Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenues:
Revenues	$ 65,016	$ 69,644	$ 129,845	$ 135,348
Total revenues	67,103	70,788	133,138	138,761
Operating expenses:
Selling, general and administrative	17,452	19,029	34,631	36,529
Product development	3,732	3,042	7,699	5,855
Depreciation and amortization	12,526	11,842	25,204	24,065
Acquisition-related and integration costs	474	494	689	1,100
Loss from operations	(196)	(1,184)	(275)	(5,412)
Other income (expense):
Interest income	572	453	964	928
Other income (expense)	(300)	155	(58)	(12)
Interest expense	(5,322)	(5,301)	(10,563)	(10,501)
Total other expense	(5,050)	(4,693)	(9,657)	(9,585)
Loss before income taxes	(5,246)	(5,877)	(9,932)	(14,997)
Income taxes	1,140	1,225	1,850	2,168
Net loss	(6,386)	(7,102)	(11,782)	(17,165)
Less: Net income attributable to noncontrolling interests	33	120	127	143
Net loss attributable to ORBCOMM Inc.	(6,419)	(7,222)	(11,909)	(17,308)
Net loss attributable to ORBCOMM Inc. common stockholders	$ (6,419)	$ (7,233)	$ (11,909)	$ (17,319)
Per share information-basic:
Net loss attributable to ORBCOMM Inc. common stockholders	$ (0.08)	$ (0.09)	$ (0.15)	$ (0.23)
Per share information-diluted:
Net loss attributable to ORBCOMM Inc. common stockholders	$ (0.08)	$ (0.09)	$ (0.15)	$ (0.23)
Weighted average common shares outstanding:
Basic	79,688	78,079	79,538	76,404
Diluted	79,688	78,079	79,538	76,404
Service [Member]
Revenues:
Revenues	$ 39,738	$ 38,475	$ 78,745	$ 76,467
Cost of revenues, exclusive of depreciation and amortization shown below:
Cost of goods and services sold	13,508	12,392	26,555	27,940
Product [Member]
Revenues:
Revenues	25,278	31,169	51,100	58,881
Total revenues	27,365	32,313	54,393	62,294
Cost of revenues, exclusive of depreciation and amortization shown below:
Cost of goods and services sold	$ 19,607	$ 25,173	$ 38,635	$ 48,684