Equity (Common Stock Changes In Number of Shares Issued, Held In Treasury and Outstanding) (Details) - shares		3 Months Ended		9 Months Ended
		Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Dec. 31, 2019	Dec. 31, 2018
Class of Stock [Line Items]
Common Stock, Shares, Issued		85,310,598		85,310,598	79,137,758
Stock Issued During Period, Shares, New Issues				6,172,840
Common Stock Issuable [Member]
Class of Stock [Line Items]
Common Stock, Shares, Issued		85,310,598	79,137,758	85,310,598	79,137,758	79,137,758
Stock Issued During Period, Shares, New Issues				6,172,840
Treasury Stock, Shares, Acquired		0	0
Stock Based Compensation Shares	[1]	0	0
Common Stock Held In Treasury [Member]
Class of Stock [Line Items]
Common Stock, Shares, Issued		17,373,572	16,528,557	17,373,572	16,481,656	16,323,390
Stock Issued During Period, Shares, New Issues				0
Treasury Stock, Shares, Acquired		(1,074,413)	(546,614)
Stock Based Compensation Shares	[1]	(182,497)	(341,447)
Common Stock Outstanding [Member]
Class of Stock [Line Items]
Common Stock, Shares, Issued		67,937,026	62,609,201	67,937,026	62,656,102	62,814,368
Stock Issued During Period, Shares, New Issues				6,172,840
Treasury Stock, Shares, Acquired		(1,074,413)	(546,614)
Stock Based Compensation Shares	[1]	(182,497)	(341,447)

[1] Represents net shares issued from treasury pursuant to the Company’s equity-based compensation programs.