CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Real estate, at cost:
Land	$ 2,457,589	$ 2,451,828
Buildings and improvements	9,839,556	9,804,204
Development costs and construction in progress	1,177,290	933,334
Leasehold improvements and equipment	127,319	125,389
Total	13,601,754	13,314,755
Less accumulated depreciation and amortization	(3,625,270)	(3,470,991)
Real estate, net	9,976,484	9,843,764
Right-of-use assets	685,536	684,380
Cash and cash equivalents	1,133,693	889,689
Restricted cash	178,440	131,468
Investments in U.S. Treasury bills	0	471,962
Tenant and other receivables	87,551	81,170
Investments in partially owned entities	2,641,297	2,665,073
220 Central Park South condominium units ready for sale	39,098	43,599
Receivable arising from the straight-lining of rents	693,220	694,972
Deferred leasing costs, net of accumulated amortization of $249,974 and $237,395	359,752	373,555
Identified intangible assets, net of accumulated amortization of $103,094 and $98,139	134,683	139,638
Other assets	508,085	474,105
Assets	16,437,839	16,493,375
LIABILITIES, REDEEMABLE NONCONTROLLING INTERESTS AND EQUITY
Mortgages payable, net	5,715,138	5,829,018
Senior unsecured notes, net	1,192,853	1,191,832
Unsecured term loan, net	793,864	793,193
Unsecured revolving credit facilities	575,000	575,000
Lease liabilities	744,696	735,969
Accounts payable and accrued expenses	504,295	450,881
Deferred revenue	35,884	39,882
Deferred compensation plan	99,050	96,322
Other liabilities	302,233	268,166
Total liabilities	9,963,013	9,980,263
Commitments and contingencies
Redeemable noncontrolling interests:
Total redeemable noncontrolling interests	480,296	436,732
Shareholders' equity:
Preferred shares of beneficial interest: no par value per share; authorized 110,000,000 shares; issued and outstanding 48,792,902 shares	1,182,459	1,182,459
Common shares of beneficial interest: $0.04 par value per share; authorized 250,000,000 shares; issued and outstanding 190,543,866 and 191,866,880 shares	7,601	7,654
Additional capital	8,331,228	8,369,228
Earnings less than distributions	(3,938,202)	(3,894,580)
Accumulated other comprehensive income	151,771	174,967
Total shareholders' / partners' equity	5,734,857	5,839,728
Noncontrolling interests in consolidated subsidiaries	259,673	236,652
Total equity	5,994,530	6,076,380
Total liabilities, redeemable noncontrolling interests / partnership units and equity	16,437,839	16,493,375
Partnership Interest
Redeemable noncontrolling interests:
Class A units - 17,024,444 and 14,416,891 units outstanding	406,741	345,157
Series D cumulative redeemable preferred units - 141,400 units outstanding	3,535	3,535
Total redeemable noncontrolling interests	410,276	348,692
Subsidiary
Redeemable noncontrolling interests:
Total redeemable noncontrolling interests	$ 70,020	$ 88,040