OPERATING AND GEOGRAPHICAL SEGMENTS (Schedule of Physical Locations of Long-lived Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Long-Lived Assets	$ 171,711	$ 206,285
United States [Member]
Segment Reporting Information [Line Items]
Long-Lived Assets	80,500	92,466
Philippines [Member]
Segment Reporting Information [Line Items]
Long-Lived Assets	53,891	56,094
France [Member]
Segment Reporting Information [Line Items]
Long-Lived Assets	10,364	13,714
Germany [Member]
Segment Reporting Information [Line Items]
Long-Lived Assets	7,354	17,920
Asia Pacific [Member]
Segment Reporting Information [Line Items]
Long-Lived Assets	15,036	20,237
Rest of Europe [Member]
Segment Reporting Information [Line Items]
Long-Lived Assets	$ 4,566	$ 5,854