Equity (Details) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2018
Class of Stock [Line Items]
Repurchase of common stock authorized by Board of Directors			$ 60,000,000.0
Dividend rate (as a percent)	6.50%
Preferred stock dividends paid	$ 800,000	$ 800,000
Common Stock
Class of Stock [Line Items]
Common stock repurchased (in shares)	0	0