Consolidated Balance Sheets (Parenthetical) - $ / shares shares in Thousands	Mar. 31, 2022	Dec. 31, 2021
Common stock, par value	$ 0.10	$ 0.10
Common stock, shares authorized	144,164	144,164
Common stock, shares issued	53,500	51,651
Common stock, shares outstanding	53,500	51,651
Excess stock, par value	$ 0.10	$ 0.10
Excess stock, shares authorized	3,000	3,000
Excess stock, shares issued	0	0
Excess stock, shares outstanding	0	0
Series C Preferred Stock [Member]
Represents the stated rate on redeemable preferred stock as of the balance sheet date	6.75%	6.75%
Preferred Stock, par value	$ 0.10	$ 0.10
Preferred stock, shares authorized	13,750	13,750
Preferred stock shares issued	9,884	9,884
Preferred stock, shares outstanding	9,884	9,884
Series D Preferred Stock [Member]
Represents the stated rate on redeemable preferred stock as of the balance sheet date	6.375%	6.375%
Preferred Stock, par value	$ 0.10	$ 0.10
Preferred stock, shares authorized	9,300	9,300
Preferred stock shares issued	8,609	8,609
Preferred stock, shares outstanding	8,609	8,609