SEC Schedule III Real Estate (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Accumulated Depreciation	$ 3,629,135,000	$ 3,296,717,000	$ 2,966,067,000	$ 2,742,244,000
Property Plant And Equipment Useful Life	40 years
Net Basis Difference Of Assets And Liabilities Between Tax Basis And GAAP Basis	3,600,000,000
New York 1290 Avenue Of Americas [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	950,000,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	515,539,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	923,653,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	125,754,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	515,540,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	1,049,406,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	1,564,946,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	204,622,000
Real Estate And Accumulated Depreciation Year Of Construction	1963
Real Estate And Accumulated Depreciation Year Of Acquisition	2007
New York St. Regis Hotel [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	152,825,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	584,230,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	0
Real Estate And Accumulated Depreciation Carrying Amount Of Land	152,825,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	584,230,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	737,055,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	2,591,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2014
New York 350 Park Avenue [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	294,484,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	265,889,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	363,381,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	44,888,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	265,890,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	408,268,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	674,158,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	82,124,000
Real Estate And Accumulated Depreciation Year Of Construction	1960
Real Estate And Accumulated Depreciation Year Of Acquisition	2006
New York Office 666 Fifth Avenue [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	390,000,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	189,005,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	471,072,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	0
Real Estate And Accumulated Depreciation Carrying Amount Of Land	189,005,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	471,072,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	660,077,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	25,020,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2012
New York Office One Penn Plaza [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	0
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	412,169,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	195,595,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	0
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	607,764,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	607,764,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	249,036,000
Real Estate And Accumulated Depreciation Year Of Construction	1972
Real Estate And Accumulated Depreciation Year Of Acquisition	1998
New York Office 100 West 33rd Street [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	223,242,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	242,776,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	247,970,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	31,257,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	242,777,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	279,226,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	522,003,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	52,608,000
Real Estate And Accumulated Depreciation Year Of Construction	1911
Real Estate And Accumulated Depreciation Year Of Acquisition	2007
New York Office 1535 Broadway Marriott Marquis [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	0
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	249,285,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	123,615,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	0
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	372,900,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	372,900,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	528,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2012
New York Office 1540 Broadway [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	105,914,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	214,208,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	26,132,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	105,914,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	240,340,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	346,254,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	35,089,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2006
New York 655 Fifth Avenue [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	140,000,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	102,594,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	231,903,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	0
Real Estate And Accumulated Depreciation Carrying Amount Of Land	102,594,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	231,903,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	334,497,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	7,305,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2013
New York Office Two Penn Plaza [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	575,000,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	53,615,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	164,903,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	88,592,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	52,689,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	254,421,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	307,110,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	124,324,000
Real Estate And Accumulated Depreciation Year Of Construction	1968
Real Estate And Accumulated Depreciation Year Of Acquisition	1997
New York Office Manhattan Mall [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	101,758,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	88,595,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	113,473,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	71,769,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	88,595,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	185,242,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	273,837,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	44,006,000
Real Estate And Accumulated Depreciation Year Of Construction	2009
Real Estate And Accumulated Depreciation Year Of Acquisition	2007
New York Office 770 Broadway [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	353,000,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	52,898,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	95,686,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	96,360,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	52,898,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	192,046,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	244,944,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	81,108,000
Real Estate And Accumulated Depreciation Year Of Construction	1907
Real Estate And Accumulated Depreciation Year Of Acquisition	1998
New York Office 90 Park Avenue [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	8,000,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	175,890,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	51,271,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	8,000,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	227,161,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	235,161,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	96,584,000
Real Estate And Accumulated Depreciation Year Of Construction	1964
Real Estate And Accumulated Depreciation Year Of Acquisition	1997
New York Office 888 Seventh Avenue [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	318,554,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	0
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	117,269,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	116,624,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	0
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	233,893,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	233,893,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	97,295,000
Real Estate And Accumulated Depreciation Year Of Construction	1980
Real Estate And Accumulated Depreciation Year Of Acquisition	1998
New York Office 909 Third Avenue [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	350,000,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	0
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	120,723,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	81,627,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	0
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	202,350,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	202,350,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	70,234,000
Real Estate And Accumulated Depreciation Year Of Construction	1969
Real Estate And Accumulated Depreciation Year Of Acquisition	1999
New York Office Eleven Penn Plaza [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	450,000,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	40,333,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	85,259,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	70,124,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	40,333,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	155,383,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	195,716,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	67,353,000
Real Estate And Accumulated Depreciation Year Of Construction	1923
Real Estate And Accumulated Depreciation Year Of Acquisition	1997
New York 7 West 34th Street [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	0
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	0
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	179,579,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	34,614,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	144,965,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	179,579,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	58,186,000
Real Estate And Accumulated Depreciation Year Of Construction	1901
Real Estate And Accumulated Depreciation Year Of Acquisition	2000
New York Office 640 Fifth Avenue [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	38,224,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	25,992,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	113,920,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	38,224,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	139,912,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	178,136,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	70,078,000
Real Estate And Accumulated Depreciation Year Of Construction	1950
Real Estate And Accumulated Depreciation Year Of Acquisition	1997
New York Office 150 East 58th Street [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	39,303,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	80,216,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	35,385,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	39,303,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	115,601,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	154,904,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	46,971,000
Real Estate And Accumulated Depreciation Year Of Construction	1969
Real Estate And Accumulated Depreciation Year Of Acquisition	1998
New York Office 595 Madison Avenue [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	62,731,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	62,888,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	22,407,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	62,731,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	85,295,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	148,026,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	30,921,000
Real Estate And Accumulated Depreciation Year Of Construction	1968
Real Estate And Accumulated Depreciation Year Of Acquisition	1999
New York Office 828 To 850 Madison Avenue [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	80,000,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	107,937,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	28,261,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	10,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	107,937,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	28,271,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	136,208,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	6,831,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2005
New York Office 715 Lexington Avenue [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	0
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	26,903,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	63,000,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	63,000,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	26,903,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	89,903,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	6,553,000
Real Estate And Accumulated Depreciation Year Of Construction	1923
Real Estate And Accumulated Depreciation Year Of Acquisition	2001
New York Office 4 Union Square South [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	119,847,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	24,079,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	55,220,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	2,614,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	24,079,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	57,834,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	81,913,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	14,903,000
Real Estate And Accumulated Depreciation Year Of Construction	1965/2004
Real Estate And Accumulated Depreciation Year Of Acquisition	1993
New York Office 330 West 34th Street [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	0
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	8,599,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	67,997,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	0
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	76,596,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	76,596,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	1,957,000
Real Estate And Accumulated Depreciation Year Of Construction	1925
Real Estate And Accumulated Depreciation Year Of Acquisition	1998
New York Office 510 5th Avenue [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	30,154,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	34,602,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	18,728,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	18,806,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	34,602,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	37,534,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	72,136,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	4,541,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2010
New York Office 478 To 482 Broadway [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	20,000,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	13,375,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	28,546,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	20,000,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	41,921,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	61,921,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	6,490,000
Real Estate And Accumulated Depreciation Year Of Construction	2009
Real Estate And Accumulated Depreciation Year Of Acquisition	2007
New York Office 20 Broad Street [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	0
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	28,760,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	27,302,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	0
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	56,062,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	56,062,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	19,666,000
Real Estate And Accumulated Depreciation Year Of Construction	1956
Real Estate And Accumulated Depreciation Year Of Acquisition	1998
New York Office 40 Fulton Street [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	15,732,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	26,388,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	13,932,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	15,732,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	40,320,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	56,052,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	16,298,000
Real Estate And Accumulated Depreciation Year Of Construction	1987
Real Estate And Accumulated Depreciation Year Of Acquisition	1998
New York Office 689 Fifth Avenue [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	19,721,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	13,446,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	19,764,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	19,721,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	33,210,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	52,931,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	7,999,000
Real Estate And Accumulated Depreciation Year Of Construction	1925
Real Estate And Accumulated Depreciation Year Of Acquisition	1998
New York Office 443 Broadway [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	11,187,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	41,186,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	0
Real Estate And Accumulated Depreciation Carrying Amount Of Land	11,187,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	41,186,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	52,373,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	1,651,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2013
New York Office 40 East 66th Street [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	13,616,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	34,635,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	142,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	13,616,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	34,777,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	48,393,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	7,848,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2005
New York Office 155 Spring Street [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	13,700,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	30,544,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	2,469,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	13,700,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	33,013,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	46,713,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	6,589,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2007
New York Office 435 7th Avenue [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	98,000,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	19,893,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	19,091,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	37,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	19,893,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	19,128,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	39,021,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	5,964,000
Real Estate And Accumulated Depreciation Year Of Construction	2002
Real Estate And Accumulated Depreciation Year Of Acquisition	1997
New York Office 3040 M Street [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	7,830,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	27,490,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	3,256,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	7,830,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	30,746,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	38,576,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	6,978,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2006
New York Office 692 Broadway [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	6,053,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	22,908,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	3,536,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	6,053,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	26,444,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	32,497,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	6,124,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2005
New York Office 608 Fifth Avenue [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	0
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	0
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	30,826,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	0
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	30,826,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	30,826,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	1,334,000
Real Estate And Accumulated Depreciation Year Of Construction	1932
Real Estate And Accumulated Depreciation Year Of Acquisition	2012
New York Office 677 To 679 Madison Avenue [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	13,070,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	9,640,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	388,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	13,070,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	10,028,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	23,098,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	2,145,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2006
New York Office 484 To 486 Broadway [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	10,000,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	6,688,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	5,040,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	10,000,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	11,728,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	21,728,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	1,746,000
Real Estate And Accumulated Depreciation Year Of Construction	2009
Real Estate And Accumulated Depreciation Year Of Acquisition	2007
New York Office 1135 Third Avenue [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	7,844,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	7,844,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	5,197,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	7,844,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	13,041,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	20,885,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	363,000
Real Estate And Accumulated Depreciation Year Of Acquisition	1997
New York Office 431 7th Avenue [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	16,700,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	2,751,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	0
Real Estate And Accumulated Depreciation Carrying Amount Of Land	16,700,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	2,751,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	19,451,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	533,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2007
New York Office 304-306 Canal Street [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	3,511,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	12,905,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	0
Real Estate And Accumulated Depreciation Carrying Amount Of Land	3,511,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	12,905,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	16,416,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	0
Real Estate And Accumulated Depreciation Year Of Acquisition	2014
New York Office 334 Canal Street [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	1,693,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	6,507,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	7,107,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	1,693,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	13,614,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	15,307,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	5,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2011
New York Office 267 West 34th Street [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	5,099,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	10,037,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	0
Real Estate And Accumulated Depreciation Carrying Amount Of Land	5,099,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	10,037,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	15,136,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	295,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2013
New York Office 1540 Broadway Garage [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	4,086,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	8,914,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	0
Real Estate And Accumulated Depreciation Carrying Amount Of Land	4,086,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	8,914,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	13,000,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	1,912,000
Real Estate And Accumulated Depreciation Year Of Construction	1990
Real Estate And Accumulated Depreciation Year Of Acquisition	2006
New York Office 966 Third Avenue [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	8,869,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	3,631,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	0
Real Estate And Accumulated Depreciation Carrying Amount Of Land	8,869,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	3,631,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	12,500,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	121,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2013
New York Office 148 Spring Street [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	3,200,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	8,112,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	392,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	3,200,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	8,504,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	11,704,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	1,396,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2008
New York Office 150 Spring Street [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	3,200,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	5,822,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	266,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	3,200,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	6,088,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	9,288,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	1,016,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2008
New York Office 488 8th Avenue [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	10,650,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	1,767,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	(4,674,000)
Real Estate And Accumulated Depreciation Carrying Amount Of Land	6,859,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	884,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	7,743,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	156,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2007
New York Office 484 8th Avenue [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	3,856,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	762,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	383,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	3,856,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	1,145,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	5,001,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	345,000
Real Estate And Accumulated Depreciation Year Of Acquisition	1997
New York Office 825 7th Avenue [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	1,483,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	697,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	33,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	1,483,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	730,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	2,213,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	322,000
Real Estate And Accumulated Depreciation Year Of Acquisition	1997
New York Office Other Including Signage [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	0
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	5,548,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	88,732,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	0
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	94,280,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	94,280,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	13,659,000
New York Office Total [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	4,474,039,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	2,345,852,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	5,227,329,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	1,860,000,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	2,438,752,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	6,994,429,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	9,433,181,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	1,591,723,000
New York NJ Paramus [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	0
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	0
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	27,521,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	1,033,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	26,488,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	27,521,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	16,868,000
Real Estate And Accumulated Depreciation Year Of Construction	1967
Real Estate And Accumulated Depreciation Year Of Acquisition	1987
New York Other Properties Hotel Pennsylvania [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	29,903,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	121,712,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	81,199,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	29,903,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	202,911,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	232,814,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	85,990,000
Real Estate And Accumulated Depreciation Year Of Construction	1919
Real Estate And Accumulated Depreciation Year Of Acquisition	1997
New York Total [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	4,474,039,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	2,375,755,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	5,349,041,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	1,968,720,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	2,469,688,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	7,223,828,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	9,693,516,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	1,694,581,000
Washington DC Office 2011-2451 Crystal Drive [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	223,652,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	100,935,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	409,920,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	138,116,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	100,229,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	548,742,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	648,971,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	196,953,000
Real Estate And Accumulated Depreciation Year Of Construction	1984-1989
Real Estate And Accumulated Depreciation Year Of Acquisition	2002
Washington DC Office 2001 Jefferson Davis Highway 2100 2200 Crystal Drive 223 23rd Street 2221 South Clark Street Crystal City Shops At 2100 And 220 20th Street [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	71,256,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	57,213,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	131,206,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	180,729,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	49,683,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	319,465,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	369,148,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	71,562,000
Real Estate And Accumulated Depreciation Year Of Construction	1964-1969
Real Estate And Accumulated Depreciation Year Of Acquisition	2002
Washington DC Office 1550-1750 Crystal Drive/ 241-251 18th Street [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	40,865,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	64,817,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	218,330,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	78,232,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	64,652,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	296,727,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	361,379,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	99,573,000
Real Estate And Accumulated Depreciation Year Of Construction	1974-1980
Real Estate And Accumulated Depreciation Year Of Acquisition	2002
Washington DC Office River House Apartments [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	259,546,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	118,421,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	125,078,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	69,507,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	138,819,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	174,187,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	313,006,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	35,074,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2007
Washington DC Office Skyline Place [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	456,421,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	41,986,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	221,869,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	29,537,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	41,862,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	251,530,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	293,392,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	84,826,000
Real Estate And Accumulated Depreciation Year Of Construction	1973-1984
Real Estate And Accumulated Depreciation Year Of Acquisition	2002
Washington DC Office 1215, 1225 S. Clark Street/ 200, 201 12th Street S. [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	58,829,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	47,594,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	177,373,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	44,496,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	47,465,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	221,998,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	269,463,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	72,395,000
Real Estate And Accumulated Depreciation Year Of Construction	1983-1987
Real Estate And Accumulated Depreciation Year Of Acquisition	2002
Washington DC Office 1229-1231 25th Street [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	101,671,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	67,049,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	5,039,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	106,659,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	68,198,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	110,549,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	178,747,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	14,439,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2007
Washington DC Office Warehouses [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	106,946,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	1,326,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	67,761,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	82,898,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	93,135,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	176,033,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	1,321,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2007
Washington DC Office 2101 L Street [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	148,922,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	32,815,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	51,642,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	83,554,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	39,768,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	128,243,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	168,011,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	30,848,000
Real Estate And Accumulated Depreciation Year Of Construction	1975
Real Estate And Accumulated Depreciation Year Of Acquisition	2003
Washington DC Office 2200-2300 Clarendon Blvd [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	35,132,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	0
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	105,475,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	45,831,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	0
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	151,306,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	151,306,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	50,525,000
Real Estate And Accumulated Depreciation Year Of Construction	1988-1989
Real Estate And Accumulated Depreciation Year Of Acquisition	2002
Washington DC Office 1800, 1851 And 1901 South Bell Street [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	37,551,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	118,806,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	(7,053,000)
Real Estate And Accumulated Depreciation Carrying Amount Of Land	37,551,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	111,753,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	149,304,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	31,493,000
Real Estate And Accumulated Depreciation Year Of Construction	1968
Real Estate And Accumulated Depreciation Year Of Acquisition	2002
Washington DC Office Bowen Building 875 15th Street NW [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	115,022,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	30,077,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	98,962,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	1,962,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	30,176,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	100,825,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	131,001,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	24,031,000
Real Estate And Accumulated Depreciation Year Of Construction	2004
Real Estate And Accumulated Depreciation Year Of Acquisition	2005
Washington DC Office 1875 Connecticut Avenue NW [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	92,500,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	36,303,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	82,004,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	7,269,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	35,886,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	89,690,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	125,576,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	20,162,000
Real Estate And Accumulated Depreciation Year Of Construction	1963
Real Estate And Accumulated Depreciation Year Of Acquisition	2007
Washington DC Office One Skyline Tower [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	138,938,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	12,266,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	75,343,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	36,416,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	12,231,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	111,794,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	124,025,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	38,697,000
Real Estate And Accumulated Depreciation Year Of Construction	1988
Real Estate And Accumulated Depreciation Year Of Acquisition	2002
Washington DC Office 1399 New York Avenue North West [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	33,481,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	67,363,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	5,736,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	34,178,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	72,402,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	106,580,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	7,425,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2011
Washington DC Office Commerce Executive [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	13,401,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	58,705,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	20,283,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	13,140,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	79,249,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	92,389,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	25,710,000
Real Estate And Accumulated Depreciation Year Of Construction	1985-1989
Real Estate And Accumulated Depreciation Year Of Acquisition	2002
Washington DC Office Seven Skyline Place [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	103,971,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	10,292,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	58,351,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	23,086,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	10,262,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	81,467,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	91,729,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	18,906,000
Real Estate And Accumulated Depreciation Year Of Construction	2001
Real Estate And Accumulated Depreciation Year Of Acquisition	2002
Washington DC Office 1825 Connecticut Avenue NW [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	92,500,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	33,090,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	61,316,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	(4,958,000)
Real Estate And Accumulated Depreciation Carrying Amount Of Land	32,726,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	56,722,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	89,448,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	13,335,000
Real Estate And Accumulated Depreciation Year Of Construction	1956
Real Estate And Accumulated Depreciation Year Of Acquisition	2007
Washington DC Office 1235 Clark Street [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	15,826,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	53,894,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	18,636,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	15,826,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	72,530,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	88,356,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	22,186,000
Real Estate And Accumulated Depreciation Year Of Construction	1981
Real Estate And Accumulated Depreciation Year Of Acquisition	2002
Washington DC Office H Street North 10 1 D Land Parcel [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	104,473,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	55,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	(33,488,000)
Real Estate And Accumulated Depreciation Carrying Amount Of Land	61,970,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	9,070,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	71,040,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	0
Real Estate And Accumulated Depreciation Year Of Acquisition	2007
Washington DC Office 1750 Pennsylvania Avenue [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	20,020,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	30,032,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	15,094,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	21,170,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	43,976,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	65,146,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	11,250,000
Real Estate And Accumulated Depreciation Year Of Construction	1964
Real Estate And Accumulated Depreciation Year Of Acquisition	2002
Washington DC Office Crystal City Hotel [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	8,000,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	47,191,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	9,316,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	8,000,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	56,507,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	64,507,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	14,565,000
Real Estate And Accumulated Depreciation Year Of Construction	1968
Real Estate And Accumulated Depreciation Year Of Acquisition	2004
Washington DC Office 1150 17th Street [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	28,728,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	23,359,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	24,876,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	15,224,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	24,723,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	38,736,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	63,459,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	14,992,000
Real Estate And Accumulated Depreciation Year Of Construction	1970
Real Estate And Accumulated Depreciation Year Of Acquisition	2002
Washington DC Office 1730 M Street [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	14,853,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	10,095,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	17,541,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	9,895,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	10,687,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	26,844,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	37,531,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	10,198,000
Real Estate And Accumulated Depreciation Year Of Construction	1963
Real Estate And Accumulated Depreciation Year Of Acquisition	2002
Washington DC Office Democracy Plaza I [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	0
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	33,628,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	3,321,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	0
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	36,949,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	36,949,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	16,407,000
Real Estate And Accumulated Depreciation Year Of Construction	1987
Real Estate And Accumulated Depreciation Year Of Acquisition	2002
Washington DC Office 1726 M Street [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	9,450,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	22,062,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	3,433,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	9,455,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	25,490,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	34,945,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	6,036,000
Real Estate And Accumulated Depreciation Year Of Construction	1964
Real Estate And Accumulated Depreciation Year Of Acquisition	2006
Washington DC Office Crystal Drive Retail [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	0
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	20,465,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	6,771,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	0
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	27,236,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	27,236,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	10,325,000
Real Estate And Accumulated Depreciation Year Of Construction	2004
Real Estate And Accumulated Depreciation Year Of Acquisition	2004
Washington DC Office 1109 South Capitol Street [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	11,541,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	178,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	(253,000)
Real Estate And Accumulated Depreciation Carrying Amount Of Land	11,597,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	(131,000)
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	11,466,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	0
Real Estate And Accumulated Depreciation Year Of Acquisition	2007
Washington DC Office South Capitol [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	4,009,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	6,273,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	(1,741,000)
Real Estate And Accumulated Depreciation Carrying Amount Of Land	0
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	8,541,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	8,541,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	0
Real Estate And Accumulated Depreciation Year Of Acquisition	2005
Washington DC Office H-Street [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	1,763,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	641,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	41,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	1,763,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	682,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	2,445,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	161,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2005
Washington DC Other [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	0
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	51,767,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	(37,673,000)
Real Estate And Accumulated Depreciation Carrying Amount Of Land	0
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	14,094,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	14,094,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	156,000
Washington DC Office Total [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	1,982,806,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	1,052,773,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	2,376,711,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	935,739,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	1,004,915,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	3,360,308,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	4,365,223,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	943,551,000
Retail CA Walnut Creek (1149 S. Main Street) [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	2,699,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	19,930,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	0
Real Estate And Accumulated Depreciation Carrying Amount Of Land	2,699,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	19,930,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	22,629,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	4,599,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2006
Retail CA Signal Hill [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	9,652,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	2,940,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	2,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	9,653,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	2,941,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	12,594,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	607,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2006
Retail CA Walnut Creek (1556 Mount Diablo Blvd) [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	5,909,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	0
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	1,536,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	5,908,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	1,537,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	7,445,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	129,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2007
Retail CA Vallejo [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	0
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	2,945,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	221,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	0
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	3,166,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	3,166,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	654,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2006
Retail CA Total California [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	18,260,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	25,815,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	1,759,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	18,260,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	27,574,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	45,834,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	5,989,000
Retail CT Waterbury [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	13,643,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	667,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	4,504,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	4,666,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	667,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	9,170,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	9,837,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	6,077,000
Real Estate And Accumulated Depreciation Year Of Construction	1969
Real Estate And Accumulated Depreciation Year Of Acquisition	1969
Retail CT Newington [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	10,969,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	2,421,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	1,200,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	1,193,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	2,421,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	2,393,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	4,814,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	801,000
Real Estate And Accumulated Depreciation Year Of Construction	1965
Real Estate And Accumulated Depreciation Year Of Acquisition	1965
Retail CT Total Connecticut [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	24,612,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	3,088,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	5,704,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	5,859,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	3,088,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	11,563,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	14,651,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	6,878,000
Retail MD Rockville [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	3,470,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	20,599,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	810,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	3,470,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	21,409,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	24,879,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	5,106,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2005
Retail MD Baltimore (Towson) [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	15,248,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	581,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	3,227,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	10,498,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	581,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	13,725,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	14,306,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	5,741,000
Real Estate And Accumulated Depreciation Year Of Construction	1968
Real Estate And Accumulated Depreciation Year Of Acquisition	1968
Retail MD Annapolis [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	0
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	9,652,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	0
Real Estate And Accumulated Depreciation Carrying Amount Of Land	0
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	9,652,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	9,652,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	2,956,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2005
Retail MD Wheaton [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	0
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	5,367,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	0
Real Estate And Accumulated Depreciation Carrying Amount Of Land	0
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	5,367,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	5,367,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	1,107,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2006
Retail MD Glen Burnie [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	462,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	2,571,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	1,807,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	462,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	4,378,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	4,840,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	3,088,000
Real Estate And Accumulated Depreciation Year Of Construction	1958
Real Estate And Accumulated Depreciation Year Of Acquisition	1958
Retail MD Total Maryland [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	15,248,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	4,513,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	41,416,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	13,115,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	4,513,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	54,531,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	59,044,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	17,998,000
Retail MA Springfield [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	5,591,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	2,797,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	2,471,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	591,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	2,797,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	3,062,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	5,859,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	1,111,000
Real Estate And Accumulated Depreciation Year Of Construction	1993
Real Estate And Accumulated Depreciation Year Of Acquisition	1966
Retail MA Chicopee [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	8,106,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	895,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	0
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	0
Real Estate And Accumulated Depreciation Carrying Amount Of Land	895,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	0
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	895,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	0
Real Estate And Accumulated Depreciation Year Of Construction	1969
Real Estate And Accumulated Depreciation Year Of Acquisition	1969
Retail MA Cambridge [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	0
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	0
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	260,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	0
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	260,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	260,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	176,000
Retail MA Total Massachusetts [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	13,697,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	3,692,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	2,471,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	851,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	3,692,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	3,322,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	7,014,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	1,287,000
Retail NH Salem [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	6,083,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	0
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	0
Real Estate And Accumulated Depreciation Carrying Amount Of Land	6,083,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	0
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	6,083,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	0
Real Estate And Accumulated Depreciation Year Of Acquisition	2006
Retail Bergen Town Center [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	300,000,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	19,884,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	81,723,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	376,240,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	37,635,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	440,212,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	477,847,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	82,904,000
Real Estate And Accumulated Depreciation Year Of Construction	1957/2009
Real Estate And Accumulated Depreciation Year Of Acquisition	2003
Retail NJ East Hanover I and II [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	41,786,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	2,232,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	18,241,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	12,033,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	2,671,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	29,835,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	32,506,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	15,472,000
Real Estate And Accumulated Depreciation Year Of Construction	1962
Real Estate And Accumulated Depreciation Year Of Acquisition	1962/1998
Retail NJ Totowa [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	24,183,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	120,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	11,994,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	4,653,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	92,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	16,675,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	16,767,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	12,839,000
Real Estate And Accumulated Depreciation Year Of Construction	1957/1999
Real Estate And Accumulated Depreciation Year Of Acquisition	1957
Retail NJ Bricktown [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	31,192,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	1,391,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	11,179,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	6,317,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	1,391,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	17,496,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	18,887,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	12,300,000
Real Estate And Accumulated Depreciation Year Of Construction	1968
Real Estate And Accumulated Depreciation Year Of Acquisition	1968
Retail NJ Hackensack [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	39,592,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	692,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	10,219,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	3,284,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	692,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	13,503,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	14,195,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	9,657,000
Real Estate And Accumulated Depreciation Year Of Construction	1963
Real Estate And Accumulated Depreciation Year Of Acquisition	1963
Retail NJ North Bergen (Tonnelle Ave) [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	75,000,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	24,493,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	0
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	63,717,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	31,806,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	56,404,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	88,210,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	9,486,000
Real Estate And Accumulated Depreciation Year Of Construction	2009
Real Estate And Accumulated Depreciation Year Of Acquisition	2006
Retail NJ East Brunswick II (339-341 Route 18 S.) [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	11,503,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	2,098,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	10,949,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	4,056,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	2,098,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	15,005,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	17,103,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	9,184,000
Real Estate And Accumulated Depreciation Year Of Construction	1972
Real Estate And Accumulated Depreciation Year Of Acquisition	1972
Retail NJ Union (Springfield Avenue) [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	27,822,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	19,700,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	45,090,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	0
Real Estate And Accumulated Depreciation Carrying Amount Of Land	19,700,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	45,090,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	64,790,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	8,548,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2007
Retail NJ Marlton [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	16,853,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	1,611,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	3,464,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	9,960,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	1,454,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	13,581,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	15,035,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	8,538,000
Real Estate And Accumulated Depreciation Year Of Construction	1973
Real Estate And Accumulated Depreciation Year Of Acquisition	1973
Retail NJ Manalapan [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	20,545,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	725,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	7,189,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	5,534,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	1,046,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	12,402,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	13,448,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	8,177,000
Real Estate And Accumulated Depreciation Year Of Construction	1971
Real Estate And Accumulated Depreciation Year Of Acquisition	1971
Retail NJ Garfield [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	45,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	8,068,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	25,707,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	45,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	33,775,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	33,820,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	6,962,000
Real Estate And Accumulated Depreciation Year Of Construction	2009
Real Estate And Accumulated Depreciation Year Of Acquisition	1998
Retail NJ Morris Plains [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	20,866,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	1,104,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	6,411,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	1,101,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	1,104,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	7,512,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	8,616,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	6,934,000
Real Estate And Accumulated Depreciation Year Of Construction	1961
Real Estate And Accumulated Depreciation Year Of Acquisition	1985
Retail NJ East Brunswick I (325-333 Route 18 S.) [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	24,290,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	319,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	6,220,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	1,959,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	319,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	8,179,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	8,498,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	6,725,000
Real Estate And Accumulated Depreciation Year Of Construction	1957
Real Estate And Accumulated Depreciation Year Of Acquisition	1957
Retail NJ Dover [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	12,841,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	559,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	6,363,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	3,598,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	559,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	9,961,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	10,520,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	6,628,000
Real Estate And Accumulated Depreciation Year Of Construction	1964
Real Estate And Accumulated Depreciation Year Of Acquisition	1964
Retail NJ Middeltown [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	16,960,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	283,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	5,248,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	2,450,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	283,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	7,698,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	7,981,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	5,669,000
Real Estate And Accumulated Depreciation Year Of Construction	1963
Real Estate And Accumulated Depreciation Year Of Acquisition	1963
Retail NJ Wayne Towne Center [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	0
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	26,137,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	22,842,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	0
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	48,979,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	48,979,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	5,575,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2010
Retail NJ East Rutherford [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	13,269,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	0
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	36,727,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	60,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	0
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	36,787,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	36,787,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	5,284,000
Real Estate And Accumulated Depreciation Year Of Construction	2007
Real Estate And Accumulated Depreciation Year Of Acquisition	2007
Retail NJ Union (Route 22 and Morris Ave) [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	31,567,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	3,025,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	7,470,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	3,394,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	3,025,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	10,864,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	13,889,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	5,275,000
Real Estate And Accumulated Depreciation Year Of Construction	1962
Real Estate And Accumulated Depreciation Year Of Acquisition	1962
Retail NJ Lawnside [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	10,433,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	851,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	3,164,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	1,351,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	851,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	4,515,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	5,366,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	4,313,000
Real Estate And Accumulated Depreciation Year Of Construction	1969
Real Estate And Accumulated Depreciation Year Of Acquisition	1969
Retail NJ Watchung [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	14,713,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	4,178,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	5,463,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	1,711,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	4,441,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	6,911,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	11,352,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	4,240,000
Real Estate And Accumulated Depreciation Year Of Construction	1994
Real Estate And Accumulated Depreciation Year Of Acquisition	1959
Retail NJ Cherry Hill [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	13,536,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	5,864,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	2,694,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	4,177,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	4,864,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	7,871,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	12,735,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	3,985,000
Real Estate And Accumulated Depreciation Year Of Construction	1964
Real Estate And Accumulated Depreciation Year Of Acquisition	1964
Retail NJ Kearny [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	309,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	3,376,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	1,489,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	309,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	4,865,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	5,174,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	3,667,000
Real Estate And Accumulated Depreciation Year Of Construction	1938
Real Estate And Accumulated Depreciation Year Of Acquisition	1959
Retail NJ Lodi (Route 17 N.) [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	11,075,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	238,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	9,446,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	0
Real Estate And Accumulated Depreciation Carrying Amount Of Land	238,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	9,446,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	9,684,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	3,599,000
Real Estate And Accumulated Depreciation Year Of Construction	1999
Real Estate And Accumulated Depreciation Year Of Acquisition	1975
Retail NJ Lodi (Washington Street) [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	7,606,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	13,125,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	2,596,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	7,606,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	15,721,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	23,327,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	3,494,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2004
Retail NJ North Plainfield [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	6,577,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	13,983,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	(5,507,000)
Real Estate And Accumulated Depreciation Carrying Amount Of Land	6,577,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	8,476,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	15,053,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	2,999,000
Real Estate And Accumulated Depreciation Year Of Construction	1955
Real Estate And Accumulated Depreciation Year Of Acquisition	1989
Retail NJ Carlstadt [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	0
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	16,457,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	1,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	0
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	16,458,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	16,458,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	2,959,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2007
Retail NJ Jersey City [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	19,796,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	652,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	7,495,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	468,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	652,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	7,963,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	8,615,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	2,799,000
Real Estate And Accumulated Depreciation Year Of Construction	1965
Real Estate And Accumulated Depreciation Year Of Acquisition	1965
Retail NJ Woodbridge [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	20,171,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	1,509,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	2,675,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	1,969,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	1,539,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	4,614,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	6,153,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	2,636,000
Real Estate And Accumulated Depreciation Year Of Construction	1959
Real Estate And Accumulated Depreciation Year Of Acquisition	1959
Retail NJ South Plainfield [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	5,003,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	0
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	10,044,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	1,582,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	0
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	11,626,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	11,626,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	2,221,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2007
Retail NJ Turnersville [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	900,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	1,342,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	1,094,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	900,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	2,436,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	3,336,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	2,194,000
Real Estate And Accumulated Depreciation Year Of Construction	1974
Real Estate And Accumulated Depreciation Year Of Acquisition	1974
Retail NJ Hazlet [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	7,400,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	9,413,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	0
Real Estate And Accumulated Depreciation Carrying Amount Of Land	7,400,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	9,413,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	16,813,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	1,784,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2007
Retail NJ Eatontown [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	4,653,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	4,999,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	326,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	4,653,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	5,325,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	9,978,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	1,371,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2005
Retail NJ Montclair [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	2,568,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	66,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	419,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	381,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	66,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	800,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	866,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	694,000
Real Estate And Accumulated Depreciation Year Of Construction	1972
Real Estate And Accumulated Depreciation Year Of Acquisition	1972
Retail NJ Englewood [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	11,571,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	2,300,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	17,245,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	(8,390,000)
Real Estate And Accumulated Depreciation Carrying Amount Of Land	1,495,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	9,660,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	11,155,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	566,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2007
Retail NJ North Bergen (Kennedy Blvd) [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	4,976,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	2,308,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	636,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	13,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	2,308,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	649,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	2,957,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	447,000
Real Estate And Accumulated Depreciation Year Of Construction	1993
Real Estate And Accumulated Depreciation Year Of Acquisition	1959
Retail NJ Total New Jersey [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	822,111,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	123,692,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	424,668,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	550,166,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	147,819,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	950,707,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	1,098,526,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	270,125,000
Retail NY Bronx (Bruckner Blvd) [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	66,100,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	259,503,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	(63,515,000)
Real Estate And Accumulated Depreciation Carrying Amount Of Land	61,618,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	200,470,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	262,088,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	6,160,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2007
Retail NY Huntington [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	16,265,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	21,200,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	33,667,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	1,690,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	21,200,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	35,357,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	56,557,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	6,173,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2007
Retail NY Mount Kisco [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	27,733,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	22,700,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	26,700,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	784,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	23,297,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	26,887,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	50,184,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	4,653,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2007
Retail NY Bronx (1750 - 1780 Gun Hill Road) [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	6,427,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	11,885,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	19,159,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	6,428,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	31,043,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	37,471,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	5,028,000
Real Estate And Accumulated Depreciation Year Of Construction	2009
Real Estate And Accumulated Depreciation Year Of Acquisition	2005
Retail NY Staten Island [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	17,000,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	11,446,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	21,262,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	2,725,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	11,446,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	23,987,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	35,433,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	6,075,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2004
Retail NY Inwood [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	12,419,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	19,097,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	795,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	12,419,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	19,892,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	32,311,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	4,974,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2004
Retail NY Buffalo (Amherst) [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	5,743,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	4,056,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	13,008,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	5,107,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	17,700,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	22,807,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	6,306,000
Real Estate And Accumulated Depreciation Year Of Construction	1968
Real Estate And Accumulated Depreciation Year Of Acquisition	1968
Retail NY West Babylon [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	6,720,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	13,786,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	201,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	6,720,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	13,987,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	20,707,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	2,700,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2007
Retail NY Freeport (437 E. Sunrise Highway) [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	20,866,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	1,231,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	4,747,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	3,091,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	1,231,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	7,838,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	9,069,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	5,343,000
Real Estate And Accumulated Depreciation Year Of Construction	1981
Real Estate And Accumulated Depreciation Year Of Acquisition	1981
Retail NY Dewitt [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	0
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	7,116,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	0
Real Estate And Accumulated Depreciation Carrying Amount Of Land	0
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	7,116,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	7,116,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	1,453,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2006
Retail NY Oceanside [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	2,710,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	2,306,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	0
Real Estate And Accumulated Depreciation Carrying Amount Of Land	2,710,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	2,306,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	5,016,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	437,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2007
Retail NY Rochester (Henrietta) [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	0
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	2,647,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	1,149,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	0
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	3,796,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	3,796,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	3,324,000
Real Estate And Accumulated Depreciation Year Of Construction	1971
Real Estate And Accumulated Depreciation Year Of Acquisition	1971
Retail NY Rochester [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	4,280,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	2,172,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	0
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	0
Real Estate And Accumulated Depreciation Carrying Amount Of Land	2,172,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	0
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	2,172,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	0
Real Estate And Accumulated Depreciation Year Of Construction	1966
Real Estate And Accumulated Depreciation Year Of Acquisition	1966
Retail NY Freeport (240 Sunrise Highway) [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	0
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	0
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	260,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	0
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	260,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	260,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	151,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2005
Retail NY Commack [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	0
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	43,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	184,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	0
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	227,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	227,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	123,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2006
Retail NY New Hyde Park [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	0
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	4,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	0
Real Estate And Accumulated Depreciation Carrying Amount Of Land	0
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	4,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	4,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	126,000
Real Estate And Accumulated Depreciation Year Of Construction	1970
Real Estate And Accumulated Depreciation Year Of Acquisition	1976
Retail NY Total New York [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	86,144,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	158,868,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	406,819,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	(20,469,000)
Real Estate And Accumulated Depreciation Carrying Amount Of Land	154,348,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	390,870,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	545,218,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	53,026,000
Retail PA Wilkes Barre [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	6,053,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	26,646,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	794,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	6,053,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	27,440,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	33,493,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	4,931,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2007
Retail PA Allentown [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	29,266,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	187,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	15,580,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	1,933,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	187,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	17,513,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	17,700,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	13,818,000
Real Estate And Accumulated Depreciation Year Of Construction	1957
Real Estate And Accumulated Depreciation Year Of Acquisition	1957
Retail PA Bensalem [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	14,526,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	2,727,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	6,698,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	1,895,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	2,727,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	8,593,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	11,320,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	3,689,000
Real Estate And Accumulated Depreciation Year Of Construction	1972/1999
Real Estate And Accumulated Depreciation Year Of Acquisition	1972
Retail PA Bethlehem [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	5,457,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	827,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	5,200,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	1,334,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	839,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	6,522,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	7,361,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	5,593,000
Real Estate And Accumulated Depreciation Year Of Construction	1966
Real Estate And Accumulated Depreciation Year Of Acquisition	1966
Retail PA Wyomissing [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	0
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	2,646,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	2,381,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	0
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	5,027,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	5,027,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	3,471,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2005
Retail PA Broomall [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	10,433,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	850,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	2,171,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	1,680,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	850,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	3,851,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	4,701,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	2,792,000
Real Estate And Accumulated Depreciation Year Of Construction	1966
Real Estate And Accumulated Depreciation Year Of Acquisition	1966
Retail PA York [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	5,083,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	409,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	2,568,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	1,395,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	409,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	3,963,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	4,372,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	3,566,000
Real Estate And Accumulated Depreciation Year Of Construction	1970
Real Estate And Accumulated Depreciation Year Of Acquisition	1970
Retail PA Lancaster [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	5,270,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	3,140,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	63,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	689,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	3,140,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	752,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	3,892,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	518,000
Real Estate And Accumulated Depreciation Year Of Construction	1966
Real Estate And Accumulated Depreciation Year Of Acquisition	1966
Retail PA Glenolden [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	6,688,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	850,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	1,820,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	613,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	850,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	2,433,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	3,283,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	2,101,000
Real Estate And Accumulated Depreciation Year Of Construction	1975
Real Estate And Accumulated Depreciation Year Of Acquisition	1975
Retail PA Springfield [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	0
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	0
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	80,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	0
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	80,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	80,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	80,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2005
Retail PA Total Pennsylvania [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	76,723,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	15,043,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	63,392,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	12,794,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	15,055,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	76,174,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	91,229,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	40,559,000
Retail SC Charleston [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	0
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	3,634,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	0
Real Estate And Accumulated Depreciation Carrying Amount Of Land	0
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	3,634,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	3,634,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	750,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2006
Retail VA Norfolk [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	0
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	3,927,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	15,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	0
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	3,942,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	3,942,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	2,885,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2005
Retail Las Catalinas Mall [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	130,000,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	15,280,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	64,370,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	10,121,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	15,280,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	74,491,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	89,771,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	30,478,000
Real Estate And Accumulated Depreciation Year Of Construction	1996
Real Estate And Accumulated Depreciation Year Of Acquisition	2002
Retail Montehiedra Town Center [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	120,000,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	9,182,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	66,751,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	8,328,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	9,267,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	74,994,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	84,261,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	31,673,000
Real Estate And Accumulated Depreciation Year Of Construction	1996
Real Estate And Accumulated Depreciation Year Of Acquisition	1997
Retail PR Total Puerto Rico [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	250,000,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	24,462,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	131,121,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	18,449,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	24,547,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	149,485,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	174,032,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	62,151,000
Retail Other [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	0
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	0
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	4,232,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	0
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	4,232,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	4,232,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	591,000
Retail Total Retail Properties [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	1,288,535,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	357,701,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	1,108,967,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	586,771,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	377,405,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	1,676,034,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	2,053,439,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	462,239,000
Merchandise Mart IL Chicago [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	550,000,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	64,528,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	319,146,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	274,921,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	64,535,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	594,060,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	658,595,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	211,332,000
Real Estate And Accumulated Depreciation Year Of Construction	1930
Real Estate And Accumulated Depreciation Year Of Acquisition	1998
Merchandise Mart IL 527 W. Kinzie, Chicago [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	5,166,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	0
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	0
Real Estate And Accumulated Depreciation Carrying Amount Of Land	5,166,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	0
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	5,166,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	0
Merchandise Mart IL Total [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	550,000,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	69,694,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	319,146,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	274,921,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	69,701,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	594,060,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	663,761,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	211,332,000
Merchandise Mart NY MMPI Piers [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	0
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	0
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	12,794,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	0
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	12,794,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	12,794,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	1,020,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2008
Merchandise Mart Total Merchandise Mart [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	550,000,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	69,694,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	319,146,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	287,715,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	69,701,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	606,854,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	676,555,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	212,352,000
Warehouse/Industrial NJ East Hanover [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	576,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	7,752,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	19,730,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	691,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	27,367,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	28,058,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	14,259,000
Real Estate And Accumulated Depreciation Year Of Construction	1972
Real Estate And Accumulated Depreciation Year Of Acquisition	1972
Other Properties 555 California Street [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	597,868,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	221,903,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	893,324,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	75,383,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	221,903,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	968,707,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	1,190,610,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	197,170,000
Real Estate And Accumulated Depreciation Year Of Construction	1922/1969/1970
Real Estate And Accumulated Depreciation Year Of Acquisition	2007
New York Manhattan 220 Central Park South Site [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	600,000,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	115,720,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	16,420,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	460,941,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	0
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	593,081,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	593,081,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	0
Real Estate And Accumulated Depreciation Year Of Acquisition	2005
Other Properties Atlantic City NJ [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	58,452,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	83,089,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	7,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	(6,000)
Real Estate And Accumulated Depreciation Carrying Amount Of Land	83,090,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	0
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	83,090,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	0
Real Estate And Accumulated Depreciation Year Of Acquisition	2010
Other Properties 40 East 66th Residential [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	29,199,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	85,798,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	(86,696,000)
Real Estate And Accumulated Depreciation Carrying Amount Of Land	10,990,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	17,311,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	28,301,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	3,686,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2005
Other Properties 677-679 Madison [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	1,462,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	1,058,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	284,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	1,626,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	1,178,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	2,804,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	322,000
Real Estate And Accumulated Depreciation Year Of Acquisition	2006
Other Properties Total Other Properties [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	1,256,320,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	479,425,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	996,607,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	421,975,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	317,609,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	1,580,398,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	1,898,007,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	201,178,000
Leasehold Improvements Equipment and Other [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	0
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	0
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	130,594,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	0
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	130,594,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	130,594,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	100,975,000
Total December 31, 2014 [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	9,551,700,000
Real Estate And Accumulated Depreciation Initial Cost Of Land	4,335,924,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	10,158,224,000
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	4,351,244,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land	4,240,009,000
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	14,605,383,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	18,845,392,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	3,629,135,000
Other Properties Wasserman [Member]
Real Estate And Accumulated Depreciation [Line Items]
Real Estate And Accumulated Depreciation Amount Of Encumbrances	0
Real Estate And Accumulated Depreciation Initial Cost Of Land	28,052,000
Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements	0
Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements	(27,931,000)
Real Estate And Accumulated Depreciation Carrying Amount Of Land	0
Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements	121,000
Real Estate And Accumulated Depreciation Carrying Amount Of Land And Buildings And Improvements	121,000
Real Estate And Accumulated Depreciation Accumulated Depreciation	$ 0
Real Estate And Accumulated Depreciation Year Of Acquisition	2005