Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2022	Dec. 31, 2021
Loans held for sale at fair value	$ 41,991	$ 48,583
Allowance for credit losses on loans	$ 37,474
Allowance for credit losses on loans		$ 31,344
Stockholders' Equity:
Common stock, without par value (in dollars per share)
Common stock, shares authorized	75,000,000	50,000,000
Common stock, shares issued	43,106,505	43,180,079
Common stock, shares outstanding	43,106,505	43,180,079
Preferred stock, shares authorized	5,000,000	5,000,000
7% Preferred Stock
Stockholders' Equity:
Preferred stock, dividend rate (as a percent)	7.00%	7.00%
Preferred stock liquidation preference (in dollars per share)	$ 25	$ 25
Preferred stock, shares authorized	3,500,000	3,500,000
Preferred stock, shares issued	2,081,800	2,081,800
Preferred stock, shares outstanding	2,081,800	2,081,800
6% Series B Preferred Stock
Stockholders' Equity:
Preferred stock, dividend rate (as a percent)	6.00%	6.00%
Preferred stock liquidation preference (in dollars per share)	$ 1,000	$ 1,000
Preferred stock, shares authorized	125,000	125,000
Preferred stock, shares issued	125,000	125,000
Preferred stock, shares outstanding	125,000	125,000
Depositary shares	5,000,000	5,000,000
6% Series C Preferred Stock
Stockholders' Equity:
Preferred stock, dividend rate (as a percent)	6.00%	6.00%
Preferred stock liquidation preference (in dollars per share)	$ 1,000	$ 1,000
Preferred stock, shares authorized	250,000	250,000
Preferred stock, shares issued	196,181	196,181
Preferred stock, shares outstanding	196,181	196,181
Depositary shares	7,847,233	7,847,233