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PROPERTY PLANT AND EQUIPMENT (TABLES)
12 Months Ended
Dec. 31, 2012
PROPERTY PLANT AND EQUIPMENT [ABSTRACT]  
Schedule of Property, Plant and Equipment
  December 31,
  2012 2011
Land and buildings$ 38,833 $ 38,846
Computer equipment and software  279,129   261,378
Telephone equipment  42,914   44,861
Furniture and fixtures  50,322   51,460
Leasehold improvements  143,051   138,117
Motor vehicles  355   190
Construction-in-progress and other  450   339
 Property, plant and equipment, gross  555,054   535,191
Less: Accumulated depreciation and amortization  (442,778)   (434,870)
 Property, plant and equipment, net$ 112,276 $ 100,321