Consolidated Balance Sheets (Parenthetical) - $ / shares
Dec. 31, 2019
Dec. 31, 2018
Statement of Financial Position [Abstract]    
Common stock, par value (USD per Share) $ 0.01 $ 0.01
Common stock, shares authorized (in Shares) 500,000,000 500,000,000
Common stock, shares issued (in Shares) 185,903,727 185,367,158
Treasury Stock, shares (in Shares) 5,090,855 4,683,156