Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Real estate, at cost:
Land	$ 44,971	$ 44,971
Buildings and leasehold improvements	1,009,761	1,014,311
Development and construction in progress	12,405	11,761
Total	1,067,137	1,071,043
Accumulated depreciation and amortization	(351,752)	(350,122)
Real estate, net	715,385	720,921
Cash and cash equivalents	459,384	428,710
Restricted cash	21,132	21,167
Marketable securities	6,606	6,024
Tenant and other receivables	6,830	8,116
Receivable arising from the straight-lining of rents	142,637	145,274
Deferred leasing costs, net, including unamortized leasing fees to Vornado of $27,221 and $27,851, respectively	35,617	36,524
Other assets	23,644	37,402
Total assets	1,411,235	1,404,138
LIABILITIES AND EQUITY
Mortgages payable, net of deferred debt issuance costs	1,156,517	1,156,170
Amounts due to Vornado	1,412	1,516
Accounts payable and accrued expenses	42,996	35,342
Other liabilities	7,052	7,882
Total liabilities	1,207,977	1,200,910
Commitments and contingencies
Preferred stock: $1.00 par value per share; authorized, 3,000,000 shares; issued and outstanding, none	0	0
Common stock: $1.00 par value per share; authorized, 10,000,000 shares; issued, 5,173,450 shares; outstanding, 5,107,290 shares	5,173	5,173
Additional capital	32,965	32,965
Retained earnings	160,997	166,165
Accumulated other comprehensive income (loss)	4,491	(707)
Equity before treasury stock	203,626	203,596
Treasury stock: 66,160 shares, at cost	(368)	(368)
Total equity	203,258	203,228
Total liabilities and equity	$ 1,411,235	$ 1,404,138