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CONTRACT ASSETS AND CONTRACT LIABILITIES (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 USD ($)
Contract Assets |
Balance at beginning of year | $ 366,168
Recognized in current year | 426,829
Reclassified to accounts receivable | (432,307)
Foreign currency impact | (15,105)
Balance at December 31, 2018 | 345,585
Contract Liabilities |
Balance at beginning of year | 463,704
Recognized in current year | 230,159
Amounts in beginning balance reclassified to revenue | (199,735)
Current year amounts reclassified to revenue | (30,914)
Foreign currency impact | (18,409)
Balance at December 31, 2018 | $ 444,805

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