Schedule III - Real Estate And Accumulated Depreciation (Details) - USD ($) $ in Thousands	1 Months Ended
	May 31, 2010	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2012
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		$ 3,731,070
Initial Cost
Land		3,175,339
Building & Improvements		7,760,729
Cost Capitalized Subsequent To Acquisition
Land		134,371
Building & Improvements		1,672,893
Gross Amount at Which Carried at Close of Period
Land		3,309,710
Building & Improvements		9,433,622
Total		12,743,332	$ 16,681,602	$ 14,069,141	$ 12,333,780
Accumulated Depreciation		2,264,694	$ 2,060,706	$ 1,905,165	$ 1,646,240
420 Lexington Avenue
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		300,000
Initial Cost
Land		0
Building & Improvements		107,832
Cost Capitalized Subsequent To Acquisition
Land		0
Building & Improvements		239,911
Gross Amount at Which Carried at Close of Period
Land		0
Building & Improvements		347,743
Total		347,743
Accumulated Depreciation		139,418
711 Third Avenue
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		0
Initial Cost
Land		19,844
Building & Improvements		42,499
Cost Capitalized Subsequent To Acquisition
Land		0
Building & Improvements		57,916
Gross Amount at Which Carried at Close of Period
Land		19,844
Building & Improvements		100,415
Total		120,259
Accumulated Depreciation		$ 34,418
Interest in property (as a percent)		50.00%
Third Avenue, 919 [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		$ 500,000
Initial Cost
Land		223,529
Building & Improvements		1,033,198
Cost Capitalized Subsequent To Acquisition
Land		35,410
Building & Improvements		42,038
Gross Amount at Which Carried at Close of Period
Land		258,939
Building & Improvements		1,075,236
Total		1,334,175
Accumulated Depreciation		$ 274,778
Interest in property (as a percent)		51.00%
555 W. 57th Street
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		$ 0
Initial Cost
Land		18,846
Building & Improvements		78,704
Cost Capitalized Subsequent To Acquisition
Land		0
Building & Improvements		59,564
Gross Amount at Which Carried at Close of Period
Land		18,846
Building & Improvements		138,268
Total		157,114
Accumulated Depreciation		58,187
220 East 42nd Street
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		275,000
Initial Cost
Land		50,373
Building & Improvements		203,727
Cost Capitalized Subsequent To Acquisition
Land		635
Building & Improvements		85,907
Gross Amount at Which Carried at Close of Period
Land		51,008
Building & Improvements		289,634
Total		340,642
Accumulated Depreciation		90,730
461 Fifth Avenue
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		0
Initial Cost
Land		0
Building & Improvements		62,695
Cost Capitalized Subsequent To Acquisition
Land		0
Building & Improvements		10,723
Gross Amount at Which Carried at Close of Period
Land		0
Building & Improvements		73,418
Total		73,418
Accumulated Depreciation		26,105
750 Third Avenue
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		0
Initial Cost
Land		51,093
Building & Improvements		205,972
Cost Capitalized Subsequent To Acquisition
Land		0
Building & Improvements		39,436
Gross Amount at Which Carried at Close of Period
Land		51,093
Building & Improvements		245,408
Total		296,501
Accumulated Depreciation		85,282
625 Madison Avenue
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		0
Initial Cost
Land		0
Building & Improvements		246,673
Cost Capitalized Subsequent To Acquisition
Land		0
Building & Improvements		41,937
Gross Amount at Which Carried at Close of Period
Land		0
Building & Improvements		288,610
Total		288,610
Accumulated Depreciation		97,690
485 Lexington Avenue (3)
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		450,000
Initial Cost
Land		77,517
Building & Improvements		326,825
Cost Capitalized Subsequent To Acquisition
Land		765
Building & Improvements		94,646
Gross Amount at Which Carried at Close of Period
Land		78,282
Building & Improvements		421,471
Total		499,753
Accumulated Depreciation		155,321
609 Fifth Avenue
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		0
Initial Cost
Land		36,677
Building & Improvements		145,954
Cost Capitalized Subsequent To Acquisition
Land		0
Building & Improvements		8,270
Gross Amount at Which Carried at Close of Period
Land		36,677
Building & Improvements		154,224
Total		190,901
Accumulated Depreciation		41,993
810 Seventh Avenue
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		0
Initial Cost
Land		114,077
Building & Improvements		476,386
Cost Capitalized Subsequent To Acquisition
Land		0
Building & Improvements		65,985
Gross Amount at Which Carried at Close of Period
Land		114,077
Building & Improvements		542,371
Total		656,448
Accumulated Depreciation		145,216
1185 Avenue of the Americas
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		0
Initial Cost
Land		0
Building & Improvements		728,213
Cost Capitalized Subsequent To Acquisition
Land		0
Building & Improvements		39,403
Gross Amount at Which Carried at Close of Period
Land		0
Building & Improvements		767,616
Total		767,616
Accumulated Depreciation		221,415
1350 Avenue of the Americas
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		0
Initial Cost
Land		91,038
Building & Improvements		380,744
Cost Capitalized Subsequent To Acquisition
Land		0
Building & Improvements		37,736
Gross Amount at Which Carried at Close of Period
Land		91,038
Building & Improvements		418,480
Total		509,518
Accumulated Depreciation		114,264
1100 King Street - 1 to 7 International Drive
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		0
Initial Cost
Land		49,392
Building & Improvements		104,376
Cost Capitalized Subsequent To Acquisition
Land		(24,004)
Building & Improvements		23,954
Gross Amount at Which Carried at Close of Period
Land		25,388
Building & Improvements		128,330
Total		153,718
Accumulated Depreciation		35,062
520 White Plains Road
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		0
Initial Cost
Land		6,324
Building & Improvements		26,096
Cost Capitalized Subsequent To Acquisition
Land		0
Building & Improvements		6,602
Gross Amount at Which Carried at Close of Period
Land		6,324
Building & Improvements		32,698
Total		39,022
Accumulated Depreciation		9,158
115-117 Stevens Avenue
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		0
Initial Cost
Land		5,933
Building & Improvements		23,826
Cost Capitalized Subsequent To Acquisition
Land		0
Building & Improvements		5,390
Gross Amount at Which Carried at Close of Period
Land		5,933
Building & Improvements		29,216
Total		35,149
Accumulated Depreciation		7,622
100 Summit Lake Drive
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		0
Initial Cost
Land		10,526
Building & Improvements		43,109
Cost Capitalized Subsequent To Acquisition
Land		0
Building & Improvements		8,476
Gross Amount at Which Carried at Close of Period
Land		10,526
Building & Improvements		51,585
Total		62,111
Accumulated Depreciation		15,149
200 Summit Lake Drive
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		0
Initial Cost
Land		11,183
Building & Improvements		47,906
Cost Capitalized Subsequent To Acquisition
Land		0
Building & Improvements		10,448
Gross Amount at Which Carried at Close of Period
Land		11,183
Building & Improvements		58,354
Total		69,537
Accumulated Depreciation		16,543
500 Summit Lake Drive
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		0
Initial Cost
Land		9,777
Building & Improvements		39,048
Cost Capitalized Subsequent To Acquisition
Land		0
Building & Improvements		5,290
Gross Amount at Which Carried at Close of Period
Land		9,777
Building & Improvements		44,338
Total		54,115
Accumulated Depreciation		11,672
360 Hamilton Avenue
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		0
Initial Cost
Land		29,497
Building & Improvements		118,250
Cost Capitalized Subsequent To Acquisition
Land		0
Building & Improvements		13,844
Gross Amount at Which Carried at Close of Period
Land		29,497
Building & Improvements		132,094
Total		161,591
Accumulated Depreciation		35,784
1-6 Landmark Square
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		100,000
Initial Cost
Land		50,947
Building & Improvements		195,167
Cost Capitalized Subsequent To Acquisition
Land		0
Building & Improvements		45,253
Gross Amount at Which Carried at Close of Period
Land		50,947
Building & Improvements		240,420
Total		291,367
Accumulated Depreciation		61,359
7 Landmark Square
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		0
Initial Cost
Land		2,088
Building & Improvements		7,748
Cost Capitalized Subsequent To Acquisition
Land		(367)
Building & Improvements		670
Gross Amount at Which Carried at Close of Period
Land		1,721
Building & Improvements		8,418
Total		10,139
Accumulated Depreciation		1,032
680 Washington Boulevard
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		0
Initial Cost
Land		11,696
Building & Improvements		45,364
Cost Capitalized Subsequent To Acquisition
Land		0
Building & Improvements		10,126
Gross Amount at Which Carried at Close of Period
Land		11,696
Building & Improvements		55,490
Total		67,186
Accumulated Depreciation		$ 14,462
Interest in property (as a percent)		51.00%
750 Washington Boulevard
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		$ 0
Initial Cost
Land		16,916
Building & Improvements		68,849
Cost Capitalized Subsequent To Acquisition
Land		0
Building & Improvements		8,350
Gross Amount at Which Carried at Close of Period
Land		16,916
Building & Improvements		77,199
Total		94,115
Accumulated Depreciation		$ 19,727
Interest in property (as a percent)		51.00%
1010 Washington Boulevard
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		$ 0
Initial Cost
Land		7,747
Building & Improvements		30,423
Cost Capitalized Subsequent To Acquisition
Land		0
Building & Improvements		6,598
Gross Amount at Which Carried at Close of Period
Land		7,747
Building & Improvements		37,021
Total		44,768
Accumulated Depreciation		9,722
400 Summit Lake Drive
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		0
Initial Cost
Land		38,889
Building & Improvements		1
Cost Capitalized Subsequent To Acquisition
Land		285
Building & Improvements		2
Gross Amount at Which Carried at Close of Period
Land		39,174
Building & Improvements		3
Total		39,177
Accumulated Depreciation		0
1055 Washington Boulevard
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		0
Initial Cost
Land		13,516
Building & Improvements		53,228
Cost Capitalized Subsequent To Acquisition
Land		0
Building & Improvements		7,559
Gross Amount at Which Carried at Close of Period
Land		13,516
Building & Improvements		60,787
Total		74,303
Accumulated Depreciation		15,655
1 Madison Ave
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		517,806
Initial Cost
Land		172,641
Building & Improvements		654,394
Cost Capitalized Subsequent To Acquisition
Land		905
Building & Improvements		15,381
Gross Amount at Which Carried at Close of Period
Land		173,546
Building & Improvements		669,775
Total		843,321
Accumulated Depreciation		158,913
125 Chubb Way
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		0
Initial Cost
Land		5,884
Building & Improvements		25,958
Cost Capitalized Subsequent To Acquisition
Land		0
Building & Improvements		25,556
Gross Amount at Which Carried at Close of Period
Land		5,884
Building & Improvements		51,514
Total		57,398
Accumulated Depreciation		9,170
100 Church Street
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		221,446
Initial Cost
Land		32,494
Building & Improvements		79,996
Cost Capitalized Subsequent To Acquisition
Land		2,500
Building & Improvements		90,141
Gross Amount at Which Carried at Close of Period
Land		34,994
Building & Improvements		170,137
Total		205,131
Accumulated Depreciation		40,466
125 Park Avenue
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		0
Initial Cost
Land		120,900
Building & Improvements		189,714
Cost Capitalized Subsequent To Acquisition
Land		0
Building & Improvements		68,264
Gross Amount at Which Carried at Close of Period
Land		120,900
Building & Improvements		257,978
Total		378,878
Accumulated Depreciation		54,736
885 Third Avenue
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		267,650
Initial Cost
Land		131,766
Building & Improvements		0
Cost Capitalized Subsequent To Acquisition
Land		110,771
Building & Improvements		0
Gross Amount at Which Carried at Close of Period
Land		242,537
Building & Improvements		0
Total		242,537
Accumulated Depreciation		0
Williamsburg
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		0
Initial Cost
Land		3,677
Building & Improvements		14,708
Cost Capitalized Subsequent To Acquisition
Land		2,523
Building & Improvements		(4,550)
Gross Amount at Which Carried at Close of Period
Land		6,200
Building & Improvements		10,158
Total		16,358
Accumulated Depreciation		1,604
1515 Broadway
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		888,531
Initial Cost
Land		462,700
Building & Improvements		707,938
Cost Capitalized Subsequent To Acquisition
Land		1,145
Building & Improvements		136,457
Gross Amount at Which Carried at Close of Period
Land		463,845
Building & Improvements		844,395
Total		1,308,240
Accumulated Depreciation		137,847
110 East 42nd Street
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		0
Initial Cost
Land		34,000
Building & Improvements		46,411
Cost Capitalized Subsequent To Acquisition
Land		2,354
Building & Improvements		21,634
Gross Amount at Which Carried at Close of Period
Land		36,354
Building & Improvements		68,045
Total		104,399
Accumulated Depreciation		15,275
East 400 Street 58 [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		40,000
Initial Cost
Land		17,549
Building & Improvements		30,916
Cost Capitalized Subsequent To Acquisition
Land		0
Building & Improvements		7,048
Gross Amount at Which Carried at Close of Period
Land		17,549
Building & Improvements		37,964
Total		55,513
Accumulated Depreciation		$ 4,199
Interest in property (as a percent)		90.00%
752 Madison Avenue
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		$ 0
Initial Cost
Land		282,415
Building & Improvements		7,131
Cost Capitalized Subsequent To Acquisition
Land		1,871
Building & Improvements		10
Gross Amount at Which Carried at Close of Period
Land		284,286
Building & Improvements		7,141
Total		291,427
Accumulated Depreciation		1,068
762 Madison Avenue
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		7,694
Initial Cost
Land		6,153
Building & Improvements		10,461
Cost Capitalized Subsequent To Acquisition
Land		0
Building & Improvements		90
Gross Amount at Which Carried at Close of Period
Land		6,153
Building & Improvements		10,551
Total		16,704
Accumulated Depreciation		$ 1,359
Interest in property (as a percent)		90.00%
19-21 East 65th Street
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		$ 0
Initial Cost
Land		0
Building & Improvements		7,389
Cost Capitalized Subsequent To Acquisition
Land		0
Building & Improvements		148
Gross Amount at Which Carried at Close of Period
Land		0
Building & Improvements		7,537
Total		7,537
Accumulated Depreciation		$ 947
Interest in property (as a percent)		90.00%
304 Park Avenue
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		$ 0
Initial Cost
Land		54,189
Building & Improvements		75,619
Cost Capitalized Subsequent To Acquisition
Land		300
Building & Improvements		11,792
Gross Amount at Which Carried at Close of Period
Land		54,489
Building & Improvements		87,411
Total		141,900
Accumulated Depreciation		13,322
635 Sixth Avenue
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		0
Initial Cost
Land		24,180
Building & Improvements		37,158
Cost Capitalized Subsequent To Acquisition
Land		163
Building & Improvements		50,189
Gross Amount at Which Carried at Close of Period
Land		24,343
Building & Improvements		87,347
Total		111,690
Accumulated Depreciation		4,428
641 Sixth Avenue
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		0
Initial Cost
Land		45,668
Building & Improvements		67,316
Cost Capitalized Subsequent To Acquisition
Land		308
Building & Improvements		3,076
Gross Amount at Which Carried at Close of Period
Land		45,976
Building & Improvements		70,392
Total		116,368
Accumulated Depreciation		9,339
1080 Amsterdam (13)
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		3,525
Initial Cost
Land		0
Building & Improvements		27,445
Cost Capitalized Subsequent To Acquisition
Land		0
Building & Improvements		20,521
Gross Amount at Which Carried at Close of Period
Land		0
Building & Improvements		47,966
Total		47,966
Accumulated Depreciation		$ 2,950
Interest in property (as a percent)		92.50%
16 Court
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		$ 0
Initial Cost
Land		19,217
Building & Improvements		63,210
Cost Capitalized Subsequent To Acquisition
Land		0
Building & Improvements		16,092
Gross Amount at Which Carried at Close of Period
Land		19,217
Building & Improvements		79,302
Total		98,519
Accumulated Depreciation		10,366
315 West 33rd Street
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		0
Initial Cost
Land		195,834
Building & Improvements		164,429
Cost Capitalized Subsequent To Acquisition
Land		0
Building & Improvements		8,919
Gross Amount at Which Carried at Close of Period
Land		195,834
Building & Improvements		173,348
Total		369,182
Accumulated Depreciation		15,160
562 Fifth Avenue
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		0
Initial Cost
Land		57,052
Building & Improvements		10,487
Cost Capitalized Subsequent To Acquisition
Land		0
Building & Improvements		1,213
Gross Amount at Which Carried at Close of Period
Land		57,052
Building & Improvements		11,700
Total		68,752
Accumulated Depreciation		2,735
719 Seventh Avenue
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		37,388
Initial Cost
Land		41,850
Building & Improvements		0
Cost Capitalized Subsequent To Acquisition
Land		1,288
Building & Improvements		27,265
Gross Amount at Which Carried at Close of Period
Land		43,138
Building & Improvements		27,265
Total		70,403
Accumulated Depreciation		$ 0
Interest in property (as a percent)		75.00%
115 Spring Street
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		$ 0
Initial Cost
Land		11,078
Building & Improvements		44,799
Cost Capitalized Subsequent To Acquisition
Land		0
Building & Improvements		1,686
Gross Amount at Which Carried at Close of Period
Land		11,078
Building & Improvements		46,485
Total		57,563
Accumulated Depreciation		2,918
635 Madison Avenue
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		0
Initial Cost
Land		205,632
Building & Improvements		15,805
Cost Capitalized Subsequent To Acquisition
Land		0
Building & Improvements		0
Gross Amount at Which Carried at Close of Period
Land		205,632
Building & Improvements		15,805
Total		221,437
Accumulated Depreciation		910
102 Greene Street
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		0
Initial Cost
Land		8,215
Building & Improvements		26,717
Cost Capitalized Subsequent To Acquisition
Land		35
Building & Improvements		482
Gross Amount at Which Carried at Close of Period
Land		8,250
Building & Improvements		27,199
Total		35,449
Accumulated Depreciation		888
1640 Flatbush Avenue
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		0
Initial Cost
Land		6,226
Building & Improvements		501
Cost Capitalized Subsequent To Acquisition
Land		0
Building & Improvements		127
Gross Amount at Which Carried at Close of Period
Land		6,226
Building & Improvements		628
Total		6,854
Accumulated Depreciation		22
One Vanderbilt
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		64,030
Initial Cost
Land		80,069
Building & Improvements		116,557
Cost Capitalized Subsequent To Acquisition
Land		0
Building & Improvements		191,441
Gross Amount at Which Carried at Close of Period
Land		80,069
Building & Improvements		307,998
Total		388,067
Accumulated Depreciation		0
Upper East Side Residential
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		0
Initial Cost
Land		48,152
Building & Improvements		0
Cost Capitalized Subsequent To Acquisition
Land		0
Building & Improvements		0
Gross Amount at Which Carried at Close of Period
Land		48,152
Building & Improvements		0
Total		48,152
Accumulated Depreciation		$ 0
Interest in property (as a percent)		95.10%
110 Greene Street
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		$ 0
Initial Cost
Land		45,120
Building & Improvements		215,470
Cost Capitalized Subsequent To Acquisition
Land		0
Building & Improvements		3,985
Gross Amount at Which Carried at Close of Period
Land		45,120
Building & Improvements		219,455
Total		264,575
Accumulated Depreciation		$ 9,459
Interest in property (as a percent)		90.00%
187 Broadway
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		$ 8,400
Initial Cost
Land		7,600
Building & Improvements		9,412
Cost Capitalized Subsequent To Acquisition
Land		(266)
Building & Improvements		(262)
Gross Amount at Which Carried at Close of Period
Land		7,334
Building & Improvements		9,150
Total		16,484
Accumulated Depreciation		3,145
5- 7 Dey Street
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		31,600
Initial Cost
Land		13,400
Building & Improvements		34,175
Cost Capitalized Subsequent To Acquisition
Land		(468)
Building & Improvements		(5)
Gross Amount at Which Carried at Close of Period
Land		12,932
Building & Improvements		34,170
Total		47,102
Accumulated Depreciation		11,704
30 East 40th Street
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		0
Initial Cost
Land		4,650
Building & Improvements		20,000
Cost Capitalized Subsequent To Acquisition
Land		2
Building & Improvements		1,031
Gross Amount at Which Carried at Close of Period
Land		4,652
Building & Improvements		21,031
Total		25,683
Accumulated Depreciation		295
600 Lexington Avenue
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		0
Initial Cost
Land		81,670
Building & Improvements		182,447
Cost Capitalized Subsequent To Acquisition
Land		(2,166)
Building & Improvements		(1,607)
Gross Amount at Which Carried at Close of Period
Land		79,504
Building & Improvements		180,840
Total		260,344
Accumulated Depreciation		$ 6,443
Ownership interest acquired (percent)	55.00%
Acquisition Price	$ 193,000
Ownership interest in consolidated joint venture (as a percent)		45.00%
Value of interest		$ 277,300
183 Broadway [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		18,000
Initial Cost
Land		5,799
Building & Improvements		23,431
Cost Capitalized Subsequent To Acquisition
Land		385
Building & Improvements		715
Gross Amount at Which Carried at Close of Period
Land		6,184
Building & Improvements		24,146
Total		30,330
Accumulated Depreciation		4,591
Other
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances		0
Initial Cost
Land		2,134
Building & Improvements		7,922
Cost Capitalized Subsequent To Acquisition
Land		(3)
Building & Improvements		20
Gross Amount at Which Carried at Close of Period
Land		2,131
Building & Improvements		7,942
Total		10,073
Accumulated Depreciation		$ 2,671