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Shareholders' Equity - Dividends (Details) - $ / shares
12 Months Ended
Feb. 26, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Class of Stock [Line Items]        
Dividends (in dollars per share)   $ 0.72 $ 0.64 $ 0.57
Dividends paid (in dollars per share)   $ 0.18    
Subsequent Event [Member]        
Class of Stock [Line Items]        
Dividends (in dollars per share) $ 0.20      
Percentage increase in common stock dividends 11.00%