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BUSINESS ACQUISITIONS AND DIVESTITURE - Pro Forma Information (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 | Jun. 30, 2017
Business Combinations [Abstract] |  |
Total revenue | $ 360,879 | $ 707,539
Net income | $ 14,274 | $ 22,850
Basic income per share (in dollars per share) | $ 0.19 | $ 0.30

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