Equity (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Common Stock Repurchase
Repurchase of common stock authorized by Board of Directors	$ 60,000,000.0		$ 60,000,000.0
Common stock repurchased (in shares)			54,626	72,324
Common stock repurchased, value	1,490,000	$ 3,251,000	$ 1,490,000	$ 3,567,000
Weighted average price per share (in dollars per share)			$ 27.29	$ 49.29
Remaining authorized stock repurchase amount	$ 54,900,000		$ 54,900,000
Dividend rate (as a percent)			6.50%
Preferred stock dividends paid			$ 1,600,000	$ 1,600,000
Common Stock
Common Stock Repurchase
Common stock repurchased (in shares)	55,000	65,000	55,000	72,000
Common stock repurchased, value		$ 1,000	$ 0	$ 1,000