Equity (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	Apr. 19, 2021
Preferred Stock, Shares Authorized	20,000,000		20,000,000
Preferred Stock, Shares Outstanding	1,302,500		1,302,500
Preferred Stock, Par or Stated Value Per Share	$ 0.01		$ 0.01
Equity Units Stock Purchase Contract Liability Payments	$ 16.7	$ 16.7
Series A Corporate Units
Shares Issued, Price Per Share				$ 100
Shares To Be Issued Under Stock Purchase Contracts	35,200,000
Series C Preferred Stock
Shares To Be Issued Under Stock Purchase Contracts	35,200,000
Series A Corporate Units
Shares Issued, Price Per Share				100
At The Market Program
Common Stock Aggregate Sale Price	$ 750.0
ATM Program Equity Remaining Available for Issuance	$ 300.0
Series A Preferred Stock
Preferred Stock, Shares Outstanding	400,000
Preferred Stock, Amount of Preferred Dividends in Arrears	$ 6.7	$ 6.7
Preferred Stock, Per Share Amounts of Preferred Dividends in Arrears	$ 16.63	$ 16.63
Series B Preferred Stock
Preferred Stock, Shares Outstanding	20,000
Preferred Stock, Amount of Preferred Dividends in Arrears	$ 1.4	$ 1.4
Preferred Stock, Per Share Amounts of Preferred Dividends in Arrears	$ 72.23	$ 72.23
Series B-1 Preferred Stock
Preferred Stock, Shares Outstanding	20,000
Series C Preferred Stock
Preferred Stock, Shares Outstanding	862,500
Preferred Stock, Par or Stated Value Per Share				$ 0.01
Undivided Beneficial Ownership Interest, Percent				10.00%