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ACCOUNTS RECEIVABLE (SIGNIFICANT CLIENTS TABLE) (DETAILS) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Concentration Risk, Percentage of Revenue from Major Customer |  |  |
Accounts receivable amount from major customer | $ 23,953 | $ 38,400 | $ 24,120
Revenue |  |  |
Concentration Risk, Percentage of Revenue from Major Customer |  |  |
Revenue from major customer as a percentage of total revenue | 10.00% | 11.00% | 12.00%

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