CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) shares in Thousands, $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
EQUITY
Preferred units, par value (in dollars per share)	$ 100	$ 100
Preferred units, shares issued (in shares)	166	166
Preferred units, shares outstanding (in shares)	166	166
Preferred units, liquidation preference	$ 16,560	$ 16,560
Preferred shares, liquidation preference (in dollars per share)	$ 25	$ 25
Preferred shares of beneficial interest, shares issued (in shares)	3,881	3,881
Preferred shares of beneficial interest, shares outstanding (in shares)	3,881	3,881
Preferred shares of beneficial interest, liquidation preference	$ 97,036	$ 97,036
Common shares of beneficial interest, shares issued (in shares)	15,052	15,020
Common shares of beneficial interest, shares outstanding (in shares)	15,052	15,020
Term Loans
LIABILITIES
Unamortized loan costs	$ 557	$ 993
Mortgages
LIABILITIES
Unamortized loan costs	$ 3,314	$ 3,615