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CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) - $ / shares
Dec. 31, 2018
Dec. 31, 2017
CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY [Abstract]    
Common stock, par value (in dollars per share) $ 0.01 $ 0.01
Preferred stock, par value (in dollars per share) $ 0.01 $ 0.01