Related party transaction (Tables)

12 Months Ended

Dec. 31, 2012

Related party transactions [Abstract]

Summary of Fees to Vornado [Table Text Block]

		Year Ended December 31,
(Amounts in thousands)		2012		2011		2010
Company management fees		$	2,983	$	3,000	$	3,000
Development fees			438		750		727
Leasing fees			2,217		4,472		4,267
Commission on sale of real estate			7,510		-		-
Property management fees and payments for cleaning, engineering
	and security services		5,103		4,648		4,342
		$	18,251	$	12,870	$	12,336