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SHARE-BASED COMPENSATION - Total Options Outstanding, Range of Exercise Prices and Remaining Contractual Lives (Details)
shares in Thousands
3 Months Ended
Mar. 31, 2017
$ / shares
shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
No. of Options (in shares) | shares 186
Weighted Average Exercise Price (in usd per share) $ 30.87
Weighted Average Remaining Life 2 years 6 months 27 days
$20.18 to $30.28  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of Prices, Lower limit (in usd per share) $ 20.18
Range of Prices, Upper limit (in usd per share) $ 30.28
No. of Options (in shares) | shares 29
Weighted Average Exercise Price (in usd per share) $ 24.81
Weighted Average Remaining Life 2 years 2 months 11 days
$30.29 to $40.38  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of Prices, Lower limit (in usd per share) $ 30.29
Range of Prices, Upper limit (in usd per share) $ 40.38
No. of Options (in shares) | shares 150
Weighted Average Exercise Price (in usd per share) $ 31.08
Weighted Average Remaining Life 2 years 5 months 20 days
$40.39 to $50.47  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of Prices, Lower limit (in usd per share) $ 40.39
Range of Prices, Upper limit (in usd per share) $ 50.47
No. of Options (in shares) | shares 7
Weighted Average Exercise Price (in usd per share) $ 50.47
Weighted Average Remaining Life 7 years 1 month 13 days