Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Real estate, at cost:
Land	$ 44,971	$ 44,971
Buildings and leasehold improvements	869,681	864,609
Development and construction in progress	4,924	2,212
Total	919,576	911,792
Accumulated depreciation and amortization	(185,375)	(160,826)
Real estate, net	734,201	750,966
Cash and cash equivalents	347,718	353,396
Restricted cash	90,044	90,395
Marketable securities	31,522	31,206
Tenant and other receivables, net of allowance for doubtful accounts of $1,993 and $2,219, respectively	2,925	1,953
Receivable arising from the straight-lining of rents	177,401	173,694
Deferred lease and other property costs, net, including unamortized leasing fees to Vornado of $36,728 and $39,910, respectively	50,273	54,461
Deferred debt issuance costs, net of accumulated amortization of $19,187 and $16,834, respectively	3,246	5,522
Other assets	20,394	20,217
Total assets	1,457,724	1,481,810
Liabilities and Equity
Mortgages payable	1,049,959	1,065,916
Amounts due to Vornado	43,307	46,445
Accounts payable and accrued expenses	27,450	33,621
Other liabilities	3,427	3,675
Total liabilities	1,124,143	1,149,657
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 and 5,105,936 shares, respectively	5,173	5,173
Additional capital	29,745	29,352
Retained earnings	297,515	296,797
Accumulated other comprehensive income	1,522	1,206
Equity before treasury stock	333,955	332,528
Treasury stock: 67,254 shares and 67,514 shares, respectively, at cost	(374)	(375)
Total equity	333,581	332,153
Total liabilities and equity	$ 1,457,724	$ 1,481,810