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Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares
Sep. 30, 2020
Dec. 31, 2019
Statement of Financial Position [Abstract]    
Common stock, par value (in dollars per share) $ 0.01 $ 0.01
Common stock, shares authorized (in shares) 900,000,000 900,000,000
Common stock, shares issued (in shares) 325,127,645 324,198,057
Common stock, shares outstanding (in shares) 320,931,399 321,231,319
Treasury stock, shares (in shares) 4,196,246 2,966,738