SEGMENT INFORMATION (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Geographic Information
Total Revenue	$ 60,872	$ 64,279	$ 186,934	$ 194,540
Long-lived assets	18,029		18,029		17,213
United States
Geographic Information
Total Revenue	51,013	52,167	155,966	157,892
Long-lived assets	17,402		17,402		15,986
International
Geographic Information
Total Revenue	9,859	12,112	30,968	36,648
Long-lived assets	$ 627		$ 627		$ 1,227