Equity - Additional Information (Details)	3 Months Ended	6 Months Ended		12 Months Ended
	Jun. 30, 2022 USD ($) $ / shares shares	Jun. 30, 2022 USD ($) $ / shares shares	Jun. 30, 2021 USD ($) shares	Dec. 31, 2021 USD ($) $ / shares shares	Dec. 31, 2018 shares	Jul. 31, 2015 shares
Equity [Line Items]
Authorized amount (in shares)					10,000,000	10,000,000
Stock repurchased and retired during period (in shares)	6,098,026	6,098,026
Stock repurchased and retired during period (in dollars per share) | $ / shares	$ 11.45	$ 11.45
Common shares repurchased (in shares)		0	0
Shares remaining available for repurchase (in shares)	2,878,289	2,878,289
Unsettled Repurchases | $	$ 3,745,000	$ 3,745,000
Series C cumulative convertible preferred, shares outstanding (in shares)	1,935,400	1,935,400		1,935,400
Series C cumulative convertible preferred, liquidation preference | $	$ 96,770,000	$ 96,770,000		$ 96,770,000
OP unit equivalent in common shares		1.13
Partners' capital account (in units)	757,000	757,000
Series C Cumulative Convertible Preferred Stock
Equity [Line Items]
Series C cumulative convertible preferred, shares outstanding (in shares)	1,935,400	1,935,400
Preferred stock, dividend per annum (in dollars per share) | $ / shares		$ 3.25
Series C cumulative convertible preferred, liquidation preference | $	$ 96,770,000	$ 96,770,000
Convertible preferred stock, conversion ratio	2.4339	2.4339
Preferred stock conversion, threshold conversion price percentage (at least)	1.25	1.25
Forward Contracts
Equity [Line Items]
Number of shares sold (in shares)		3,649,023
Proceeds from sale of stock | $		$ 38,492,000
Share-based Payment Arrangement
Equity [Line Items]
Shares granted (in shares)		25,297	27,565
Grant date fair value | $		$ 357,000	$ 300,000
At-The-Market Program
Equity [Line Items]
Sale of stock, authorized amount (up to) | $				$ 350,000,000
Common shares amount available for issuance | $	$ 294,985,000	294,985,000
Underwritten Offering | Forward Contracts
Equity [Line Items]
Number of shares to be settled on a forward basis (in shares)				16,000,000
Sale of stock (in dollars per share) | $ / shares				$ 12.11
Shares to be settled on forward basis, aggregate value | $	$ 183,392,000	$ 183,392,000