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Shareholders' Equity (Schedule of Dividends Paid and Dividends Declared) (Details) - USD ($)
$ / shares in Units, $ in Millions
2 Months Ended 12 Months Ended
Feb. 24, 2020
Dec. 31, 2019
July 29, 2019 [Member]    
Date Declared   Jul. 29, 2019
Payable to Shareholders of Record At the Close of Business on   Aug. 28, 2019
Cash Paid Per Share   $ 0.37
Aggregate Amount Paid   $ 41.9
Date Paid/Date to be Paid   Sep. 25, 2019
October 25, 2019 [Member]    
Date Declared   Oct. 25, 2019
Payable to Shareholders of Record At the Close of Business on   Nov. 21, 2019
Cash Paid Per Share   $ 0.37
Aggregate Amount Paid   $ 41.5
Date Paid/Date to be Paid   Dec. 19, 2019
Subsequent Event [Member] | February 20, 2020 [Member]    
Date Declared Feb. 20, 2020  
Payable to Shareholders of Record At the Close of Business on Mar. 10, 2020  
Cash to be Paid Per Share $ 0.465  
Date Paid/Date to be Paid Mar. 26, 2020