Shareholders' Equity - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended	12 Months Ended
	Feb. 15, 2021	Dec. 31, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Class of Stock [Line Items]
Preferred stock, shares authorized (in shares)		50,000,000	50,000,000	50,000,000
Preferred stock, shares outstanding (in shares)		4,460,000	4,460,000	7,248,330
Preferred stock redemption charge			$ 2,987	$ 3,914	$ 0
Stock issuance costs			329	0	185
Share-based compensation expense			$ 2,516	$ 1,823	$ 1,205
ATM Offering
Class of Stock [Line Items]
Number of shares issued in transaction (in shares)		730,499	5,784,947
Consideration received on transaction		$ 12,780	$ 108,980
Stock issuance costs		$ 162	$ 1,380
Series C Preferred Stock
Class of Stock [Line Items]
Preferred stock, shares authorized (in shares)		6,600,000	6,600,000
Preferred stock, shares outstanding (in shares)		4,460,000	4,460,000
Liquidation preference per share (in dollars per share)		$ 25.00	$ 25.00
Dividend rate, percent			6.90%
Dividends declared (in dollars per share)		$ 0.43125
Series C Preferred Stock | London Interbank Offered Rate (LIBOR)
Class of Stock [Line Items]
Dividend payment rate, basis spread on variable rate			5.461%
Series B Preferred Stock
Class of Stock [Line Items]
Liquidation preference per share (in dollars per share)	$ 25.00
Dividend rate, percent	7.625%
Stock redeemed in period (in shares)	2,788,330
Redemption price per share (in dollars per share)	$ 25.15
Preferred stock redemption charge			$ 2,987