Annual report pursuant to Section 13 and 15(d)

BASIC AND DILUTED EARNINGS PER SHARE - Narrative (Details)

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BASIC AND DILUTED EARNINGS PER SHARE - Narrative (Details) - $ / shares
9 Months Ended 12 Months Ended
Dec. 31, 2016
Dec. 31, 2017
Earnings Per Share, Basic and Diluted [Abstract]    
Antidilutive securities excluded (shares) 1,861,500 1,569,730
Antidilutive securities excluded (usd per share) $ 1.89 $ 3.17