Consolidated Statements of Changes in Shareholders' Equity (Unaudited) (Parenthetical) - $ / shares	3 Months Ended						12 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2022
Common stock dividends per share, declared	$ 0.3	$ 0.3	$ 0.3	$ 0.29	$ 0.29	$ 0.29
Series A 3% Preferred Stock [Member]
Preferred stock, dividend percentage	3.00%	3.00%	3.00%	3.00%	3.00%	3.00%	3.00%
Preferred stock dividends per share, declared	$ 0.75	$ 0.75	$ 0.75	$ 0.75	$ 0.75	$ 0.75
Series B-1 8.48% Preferred Stock [Member]
Preferred stock, dividend percentage	8.48%	8.48%	8.48%	8.48%	8.48%	8.48%	8.48%
Preferred stock dividends per share, declared	$ 2.12	$ 2.12	$ 2.12	$ 2.12	$ 2.12	$ 2.12