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Equity - Narrative (Details) - $ / shares
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Equity [Abstract]      
Common stock, shares authorized (in shares) 75,000,000 75,000,000  
Par value of common stock (in dollars per share) $ 0.01    
Preferred stock, shares authorized (in shares) 3,500,000 3,500,000  
Par value of preferred stock per share (in dollars per share) $ 0.01 $ 0.01  
Preferred stock, shares issued (in shares) 0    
Dividends per common share (in dollars per share) $ 0 $ 0 $ 0