Equity (Preferred Stock - Authorized, Issued and Outstanding) (Details) - $ / shares shares in Thousands	Dec. 31, 2021	Dec. 31, 2020
Preferred stock authorized (shares)	20,000	20,000
Preferred stock outstanding (shares)	51	36
Series B Preferred Stock
Preferred stock, liquidation preference per share (in USD per share)	$ 40
Preferred stock outstanding (shares)	1	1
Series O Preferred Stock
Preferred stock, liquidation preference per share (in USD per share)	$ 100,000
Preferred stock outstanding (shares)	10	10
Series P Preferred Stock
Preferred stock, liquidation preference per share (in USD per share)	$ 100,000
Preferred stock outstanding (shares)	15	15
Series R Preferred Stock
Preferred stock, liquidation preference per share (in USD per share)	$ 100,000
Preferred stock outstanding (shares)	5	5
Series S Preferred Stock
Preferred stock, liquidation preference per share (in USD per share)	$ 100,000
Preferred stock outstanding (shares)	5	5
Series T Preferred Stock
Preferred stock, liquidation preference per share (in USD per share)	$ 100,000
Preferred stock outstanding (shares)	15