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Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - $ / shares	3 Months Ended			9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2023
Exercise of stock options (shares)						61,000
Treasury stock purchases (shares)						266,753
Cash dividends on common stock (per share)	$ 0.14	$ 0.16	$ 0.16	$ 0.14	$ 0.48	$ 0.32
Series H Preferred Stock [Member]
Preferred stock, dividend rate			3.50%			3.50%
Series I Preferred Stock [Member]
Preferred stock, dividend rate		3.00%	3.00%		3.00%	3.00%
Series J Preferred Stock [Member]
Preferred stock, dividend rate	8.00%	8.00%		8.00%	8.00%
Series K Preferred Stock [Member]
Preferred stock, dividend rate	6.00%			6.00%

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Stock Issued During Period, Shares, Stock Option Exercised, Excluding Cashless Exercises

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