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SEGMENT INFORMATION SEGMENT INFORMATION (Policies)
12 Months Ended
Dec. 31, 2018
Segment Reporting [Abstract]  
Reclassification
During the year ended December 31, 2018, the Company began to allocate certain staff recruitment and development expenses into segment operating profit as these expenses became part of the evaluation of segment management’s performance. These costs were previously not allocated to segments and were included in unallocated amounts in the reconciliation of segment operating profit to consolidated income before provision for income taxes above. The effect of this reclassification was not material to segment operating profit and had no impact on total income from operations for the year end December 31, 2018.