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EQUITY (Narrative) (Details) shares in Millions, $ in Millions | 3 Months Ended
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Mar. 31, 2018 USD ($) shares
Equity Contract |
Schedule Of Changes In Equity [Line Items] |
Remaining equity distribution agreement amount | $ 246.3
401K Plan, DRSPP, and Shared Based Compensation Plans |
Schedule Of Changes In Equity [Line Items] |
Stock issued during period for stock options exercised and under 401(K) plan and DRSPP (in shares) | shares | 1.2
Proceeds from stock issuance | $ 35.1

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