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SHARE-BASED COMPENSATION - Summary Of Non-vested Restricted Stock (Details) - Restricted Stock
3 Months Ended
Mar. 31, 2018
$ / shares
shares
Shares  
Outstanding, beginning of period (in shares) | shares 1,516,241
Granted (in shares) | shares 32,857
Vested (in shares) | shares 0
Forfeited (in shares) | shares 0
Outstanding, end of period (in shares) | shares 1,549,098
Weighted Average Grant Date Fair Value  
Weighted average grant date fair value, beginning of period (USD per share) | $ / shares $ 14.00
Grants in period, weighted average grant date fair value (USD per share) | $ / shares 17.14
Weighted average grant date fair value, vested (USD per share) | $ / shares 0.00
Weighted average grant date fair value, forfeited (USD per share) | $ / shares 0.00
Weighted average grant date fair value, end of period (USD per share) | $ / shares $ 14.07