PRODUCT AND GEOGRAPHIC INFORMATION (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Segment Reporting, Revenue Reconciling Item [Line Items]
Products and solutions net revenues	$ 63,740	$ 88,945	$ 223,841	$ 245,124
Services net revenues	55,279	48,491	172,794	121,665
Total net revenues	119,019	137,436	396,635	366,789
Video products and solutions net revenues [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Products and solutions net revenues	39,182	62,851	118,252	152,798
Audio products and solutions net revenues [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Products and solutions net revenues	24,558	26,094	105,589	92,326
United States [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Total net revenues	45,982	48,146	145,384	135,225
Other Americas [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Total net revenues	9,702	10,212	30,674	24,384
Europe, Middle East and Africa [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Total net revenues	44,524	55,061	159,243	151,314
Asia-Pacific [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Total net revenues	$ 18,811	$ 24,017	$ 61,334	$ 55,866