Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 45,894	$ 34,830
Accounts receivable, net of allowance for doubtful accounts of $3,619 and $400, respectively	58,615	46,900
Inventories	37,042	42,437
Prepaid expenses and other current assets	18,996	18,692
Total current assets	160,547	142,859
Satellite network and other equipment, net	165,176	174,178
Goodwill	166,129	166,678
Intangible assets, net	89,514	99,339
Other assets	12,676	12,036
Deferred income taxes	181	104
Total assets	594,223	595,194
Current liabilities:
Accounts payable	11,680	29,298
Accrued liabilities	41,972	33,016
Current portion of deferred revenue	3,622	6,263
Total current liabilities	57,274	68,577
Note payable-related party	1,321	1,366
Notes payable, net of unamortized deferred issuance costs	245,713	245,131
Deferred revenue, net of current portion	6,779	2,459
Deferred tax liabilities	15,912	17,646
Other liabilities	6,662	13,619
Total liabilities	333,661	348,798
Commitments and contingencies
ORBCOMM Inc. stockholders' equity
Common stock, par value $0.001; 250,000,000 shares authorized; 78,799,373 and 74,436,579 shares issued at September 30, 2018 and December 31, 2017, respectively	79	74
Additional paid-in capital	446,407	411,298
Accumulated other comprehensive (loss) income	(298)	256
Accumulated deficit	(186,859)	(166,245)
Less treasury stock, at cost; 29,990 shares at September 30, 2018 and December 31, 2017	(96)	(96)
Total ORBCOMM Inc. stockholders' equity	259,620	245,663
Noncontrolling interests	942	733
Total equity	260,562	246,396
Total liabilities and equity	594,223	595,194
Series A Convertible Preferred Stock [Member]
ORBCOMM Inc. stockholders' equity
Series A convertible preferred stock, par value $0.001; 1,000,000 shares authorized; 38,672 and 37,544 shares issued and outstanding at September 30, 2018 and December 31, 2017, respectively	$ 387	$ 376