Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Real estate, at cost:
Land	$ 44,971	$ 44,971
Buildings and leasehold improvements	870,676	869,681
Development and construction in progress	25,057	4,924
Total	940,704	919,576
Accumulated depreciation and amortization	(197,695)	(185,375)
Real estate, net	743,009	734,201
Cash and cash equivalents	307,929	347,718
Restricted cash	85,587	90,044
Marketable securities	35,729	31,522
Tenant and other receivables, net of allowance for doubtful accounts of $1,720 and $1,993, respectively	2,283	2,925
Receivable arising from the straight-lining of rents	178,683	177,401
Deferred lease and other property costs, net, including unamortized leasing fees to Vornado of $35,009 and $36,728, respectively	48,059	50,273
Deferred debt issuance costs, net of accumulated amortization of $9,930 and $19,187, respectively	6,197	3,246
Other assets	42,380	20,394
Total assets	1,449,856	1,457,724
Liabilities and Equity
Mortgages payable	1,034,289	1,049,959
Amounts due to Vornado	42,489	43,307
Accounts payable and accrued expenses	32,768	27,450
Other liabilities	3,422	3,427
Total liabilities	1,112,968	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	296,374	297,515
Accumulated other comprehensive income	5,576	1,522
Equity before treasury stock	337,262	333,955
Treasury stock: 67,254 shares, at cost	(374)	(374)
Total equity	336,888	333,581
Total liabilities and equity	$ 1,449,856	$ 1,457,724