Preferred Stock - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands			1 Months Ended		12 Months Ended
	Jan. 21, 2021	Jan. 21, 2020	May 31, 2020	Jan. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Jan. 31, 2019
Class of Stock [Line Items]
Preferred stock, par value per share (in dollars per share)					$ 0.01	$ 0.01	$ 0.01
Preferred stock, liquidation preference (in dollars per share)							$ 25.00
Dividends paid					$ 7,441	$ 8,106	$ 8,110
Annualized dividend (in dollars per share)		$ 2.1875
Subsequent Event
Class of Stock [Line Items]
Quarterly cash dividend (in dollars per share)	$ 0.546875
Series A Preferred Stock
Class of Stock [Line Items]
Shares issued (in shares)				2,000,000
Preferred stock, dividend accrual rate					8.75%		8.75%
Preferred stock, price to the public (in dollars per share)								$ 25.25
Net proceeds from offering				$ 48,900
Preferred stock, price to the public, net of issuance costs (in dollars per share)								$ 24.45
Offering expenses				$ 500
Shares authorized to be repurchased (in shares)			1,000,000
Repurchased shares (in shares)			36,827		109,775
Share Price			$ 22.00
Cost of repurchased of stock			$ 800		$ 2,300
Repurchased stock per share (in dollars per share)					$ 20.79
Dividends paid					$ 7,900	8,100
Dividend accrual					$ 1,900	$ 2,000
Series A Preferred Stock | Subsequent Event
Class of Stock [Line Items]
Quarterly cash dividend (in dollars per share)	$ 0.546875