Consolidated Balance Sheet - Unaudited (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Allowance for credit losses, available for sale securities	$ 253
Loans held for sale at fair value	$ 609	$ 15,747
Preferred stock, par value (usd per share)	$ 1.00	$ 1.00
Preferred stock, liquidation preference (usd per share)	$ 25.00	$ 25.00
Preferred stock, shares authorized (shares)	100,000,000	100,000,000
Preferred stock, shares issued (shares)	5,700,000	5,700,000
Preferred stock, shares outstanding (shares)	5,700,000	5,700,000
Common stock, par value (usd per share)	$ 1.00	$ 1.00
Common stock, shares authorized (shares)	200,000,000	200,000,000
Common stock, shares issued (shares)	34,948,055	34,721,675
Common stock, shares outstanding (shares)	32,475,502	32,913,267
Treasury stock, shares (shares)	2,472,553	1,808,408