CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Real estate investments
Property owned	$ 2,203,606	$ 1,812,557
Less accumulated depreciation	(426,926)	(399,249)
Total property owned	1,776,680	1,413,308
Mortgage loans receivable at fair value	42,160	24,661
Total real estate investments	1,818,840	1,437,969
Cash and cash equivalents	20,816	392
Restricted cash	2,376	6,918
Other assets	34,919	18,904
TOTAL ASSETS	1,876,951	1,464,183
LIABILITIES
Accounts payable and accrued expenses	58,092	55,609
Revolving lines of credit	57,000	152,871
Notes payable, net of unamortized loan costs of $546 and $754 respectively	299,454	269,246
Mortgages payable, net of unamortized loan costs of $3,258 and $1,371, respectively	489,140	297,074
TOTAL LIABILITIES	903,686	774,800
COMMITMENTS AND CONTINGENCIES (NOTE 10)
EQUITY
Common Shares of Beneficial Interest (Unlimited authorization, no par value, 14,281 shares issued and outstanding at September 30, 2021 and 13,027 shares issued and outstanding at December 31, 2020)	1,092,130	968,263
Accumulated distributions in excess of net income	(454,691)	(427,681)
Accumulated other comprehensive income (loss)	(5,784)	(15,905)
Total shareholders’ equity	725,185	618,207
Noncontrolling interests – Operating Partnership and Series E preferred units	225,850	53,930
Noncontrolling interests – consolidated real estate entities	645	686
Total equity	951,680	672,823
TOTAL LIABILITIES, MEZZANINE EQUITY, AND EQUITY	1,876,951	1,464,183
Series D Preferred Units
LIABILITIES
SERIES D PREFERRED UNITS (Cumulative convertible preferred units, $100 par value, 166 units issued and outstanding at September 30, 2021 and December 31, 2020, aggregate liquidation preference of $16,560)	21,585	16,560
Series C Preferred Shares Of Beneficial Interest
EQUITY
Series C Preferred Shares of Beneficial Interest (Cumulative redeemable preferred shares, no par value, $25 per share liquidation preference, 3,881 shares issued and outstanding at September 30, 2021 and December 31, 2020, aggregate liquidation preference of $97,036)	$ 93,530	$ 93,530

Noncontrolling Interest in Operating Partnerships And Preferred Unit Holders

No definition available.

Name:	csr_NoncontrollingInterestInOperatingPartnershipsAndPreferredUnitHolders
Namespace Prefix:	csr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Sum of the carrying values as of the balance sheet date of obligations incurred through that date, including liabilities incurred and payable to vendors for goods and services received, taxes, interest, rent and utilities, compensation costs, payroll taxes and fringe benefits (other than pension and postretirement obligations), contractual rights and obligations, and statutory obligations.