Equity (Details) - USD ($)	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2018
Class of Stock [Line Items]
Repurchase of common stock authorized by Board of Directors				$ 60,000,000.0
Common stock repurchased (in shares)			54,626
Common stock repurchased, value	$ 1,490,000		$ 1,490,000
Common stock repurchased, average price per share (in dollars per share)			$ 27.79
Dividend rate (as a percent)		6.50%
Preferred stock dividends paid		$ 1,600,000	$ 1,600,000
Common Stock
Class of Stock [Line Items]
Common stock repurchased (in shares)	55,000	0	55,000
Common stock repurchased, value	$ 0		$ 0