SEGMENT INFORMATION (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Segment Reporting, Revenue Reconciling Item [Line Items]
Product Revenues	$ 87,315	$ 99,858	$ 181,885	$ 198,576
Services net revenues	37,329	41,487	77,741	78,840
Total net revenues	124,644	141,345	259,626	277,416
Revenues	124,644	141,345	259,626	277,416
Video products and solutions net revenues [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Product Revenues	55,496	58,062	115,574	116,886
Audio products and solutions net revenues [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Product Revenues	31,819	41,796	66,311	81,690
United States [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Total net revenues	44,653	56,110	89,732	106,925
Revenues	44,653	56,110	89,732	106,925
Other Americas [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Total net revenues	10,131	11,733	24,610	24,836
Revenues	10,131	11,733	24,610	24,836
Europe, Middle East and Africa [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Total net revenues	54,098	52,230	109,522	103,501
Revenues	54,098	52,230	109,522	103,501
Asia-Pacific [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Total net revenues	15,762	21,272	35,762	42,154
Revenues	$ 15,762	$ 21,272	$ 35,762	$ 42,154