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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) - $ / shares
12 Months Ended
Aug. 24, 2020
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dividend per common share (in dollars per share)   $ 0.14 $ 0.56 $ 0.56
Series A Mandatory Convertible Preferred Stock        
Annual percentage rate 6.50% 6.50%