Consolidated Balance Sheets (Parenthetical) - USD ($)	Dec. 31, 2022	Dec. 31, 2021
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Common Stock, Shares Authorized	100,000,000	100,000,000
Common Stock, Shares, Issued	82,545,501	82,225,061
Preferred Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Preferred Stock, Shares Authorized	25,000,000	25,000,000
Treasury Stock, Shares	7,520,227	7,416,746
Series C Preferred Shares [Member]
Preferred Stock, Shares Issued	5,392,916	5,392,916
Auction Market Preferred Securities, Stock Series, Liquidation Value		$ 134,822,900
Series E Preferred Shares [Member]
Preferred Stock, Shares Issued	3,447,381	3,447,381
Auction Market Preferred Securities, Stock Series, Liquidation Value	$ 86,184,525	$ 86,184,525
Series G Preferred Stock [Member]
Preferred Stock, Shares Issued	6,000,000	6,000,000
Auction Market Preferred Securities, Stock Series, Liquidation Value	$ 150,000,000	$ 150,000,000