Related Party Transactions (Tables)

12 Months Ended

Dec. 31, 2014

Related party transactions [Abstract]

Summary of Fees to Vornado [Table Text Block]

		Year Ended December 31,
(Amounts in thousands)		2014		2013		2012
Company management fees		$	2,800	$	2,800	$	2,983
Development fees			3,394		-		438
Leasing fees			1,430		1,126		2,217
Commission on sale of real estate			-		-		7,510
Property management fees and payments for cleaning, engineering
	and security services		3,658		3,415		4,531
		$	11,282	$	7,341	$	17,679