Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Real estate, at cost:
Land	$ 44,971	$ 44,971
Buildings and leasehold improvements	873,667	869,681
Development and construction in progress	75,289	4,924
Total	993,927	919,576
Accumulated depreciation and amortization	(210,025)	(185,375)
Real estate, net	783,902	734,201
Cash and cash equivalents	227,815	347,718
Short-term investments	24,998	0
Restricted cash	84,602	90,044
Marketable securities	44,646	31,522
Tenant and other receivables, net of allowance for doubtful accounts of $1,544 and $1,993, respectively	2,213	2,925
Receivable arising from the straight-lining of rents	179,939	177,401
Deferred lease and other property costs, net, including unamortized leasing fees to Vornado of $33,974 and $36,728, respectively	46,561	50,273
Deferred debt issuance costs, net of accumulated amortization of $11,295 and $19,187, respectively	4,824	3,246
Other assets	23,716	20,394
Total assets	1,423,216	1,457,724
Liabilities and Equity
Mortgages payable	1,032,780	1,049,959
Amounts due to Vornado	3,922	43,307
Accounts payable and accrued expenses	35,127	27,450
Other liabilities	2,988	3,427
Total liabilities	1,074,817	1,124,143
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, 5,106,196 shares	5,173	5,173
Additional capital	30,139	29,745
Retained earnings	299,004	297,515
Accumulated other comprehensive income	14,457	1,522
Equity before treasury stock	348,773	333,955
Treasury stock: 67,254 shares, at cost	(374)	(374)
Total equity	348,399	333,581
Total liabilities and equity	$ 1,423,216	$ 1,457,724