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AQUISITIONS AND DISCONTINUED OPERATIONS - Pro Forma Results (Details) - Cues, Inc. $ / shares in Units, $ in Millions | 3 Months Ended
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Mar. 31, 2018 USD ($) $ / shares
Business Acquisition [Line Items] |
Revenues | $ | $ 369.3
Income from continuing operations | $ | 12.7
Net income | $ | $ 12.7
Income from continuing operations per share of common stock, basic (USD per share) | $ 0.30
Income from continuing operations per share of common stock, diluted (USD per share) | 0.29
Net income per share of common stock, basic (USD per share) | 0.30
Net income per share of common stock, diluted (USD per Share) | $ 0.29

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