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SHARE-BASED COMPENSATION EXPENSE (Schedule of Share-Based Compensation, Restricted Stock Unit Activity) (Details) - Restricted Stock Units [Member]
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended
Mar. 31, 2017
USD ($)
$ / shares
shares
Number of Shares  
Number of Shares, Nonvested, Beginning of Period | shares 281
Number of Shares, Granted | shares 73
Number of Shares, Vested | shares (26)
Number of Shares, Forfeited | shares 0
Number of Shares, Nonvested, End of Period | shares 328
Weighted-Average Grant-Date Fair Value  
Weighted-Average Grant-Date Fair Value, Nonvested, Beginning of Period | $ / shares $ 23.18
Weighted-Average Grant-Date Fair Value, Granted | $ / shares 35.75
Weighted-Average Grant-Date Fair Value, Vested | $ / shares 21.64
Weighted-Average Grant-Date Fair Value, Forfeited | $ / shares 0.00
Weighted-Average Grant-Date Fair Value, Nonvested, End of Period | $ / shares $ 26.10
Aggregate Intrinsic Value  
Aggregate Intrinsic Value, Nonvested | $ $ 18,191