Schedule III-Real Estate And Accumulated Depreciation (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Real Estate And Accumulated Depreciation
Encumbrances	$ 5,466,709
Initial Cost
Land	3,685,380
Building & Improvements	8,919,315
Cost Capitalized Subsequent To Acquisition
Land	159,138
Building & Improvements	1,305,308
Gross Amount at Which Carried at Close of Period
Land	3,844,518
Building & Improvements	10,224,623
Total	14,069,141		12,333,780	11,662,953	11,147,151
Accumulated Depreciation	1,905,165		1,646,240	1,393,323	1,136,603
420 Lexington Avenue
Real Estate And Accumulated Depreciation
Encumbrances	300,000	[1]
Initial Cost
Building & Improvements	107,832	[1]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	221,171	[1]
Gross Amount at Which Carried at Close of Period
Building & Improvements	329,003	[1]
Total	329,003	[1]
Accumulated Depreciation	107,652	[1]
711 Third Avenue
Real Estate And Accumulated Depreciation
Encumbrances	120,000	[1],[2]
Initial Cost
Land	19,844	[1],[2]
Building & Improvements	42,499	[1],[2]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	40,907	[1],[2]
Gross Amount at Which Carried at Close of Period
Land	19,844	[1],[2]
Building & Improvements	83,406	[1],[2]
Total	103,250	[1],[2]
Accumulated Depreciation	30,035	[1],[2]
Interest in property (as a percent)	50.00%
555 W. 57th Street
Initial Cost
Land	18,846	[1]
Building & Improvements	78,704	[1]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	47,933	[1]
Gross Amount at Which Carried at Close of Period
Land	18,846	[1]
Building & Improvements	126,637	[1]
Total	145,483	[1]
Accumulated Depreciation	48,659	[1]
317 Madison Avenue
Initial Cost
Land	21,205	[1]
Building & Improvements	85,559	[1]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	35,572	[1]
Gross Amount at Which Carried at Close of Period
Land	21,205	[1]
Building & Improvements	121,131	[1]
Total	142,336	[1]
Accumulated Depreciation	53,779	[1]
220 East 42nd Street
Real Estate And Accumulated Depreciation
Encumbrances	275,000	[1]
Initial Cost
Land	50,373	[1]
Building & Improvements	203,727	[1]
Cost Capitalized Subsequent To Acquisition
Land	635	[1]
Building & Improvements	57,876	[1]
Gross Amount at Which Carried at Close of Period
Land	51,008	[1]
Building & Improvements	261,603	[1]
Total	312,611	[1]
Accumulated Depreciation	81,045	[1]
461 Fifth Avenue
Initial Cost
Building & Improvements	62,695	[1]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	9,626	[1]
Gross Amount at Which Carried at Close of Period
Building & Improvements	72,321	[1]
Total	72,321	[1]
Accumulated Depreciation	21,838	[1]
750 Third Avenue
Initial Cost
Land	51,093	[1]
Building & Improvements	205,972	[1]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	35,951	[1]
Gross Amount at Which Carried at Close of Period
Land	51,093	[1]
Building & Improvements	241,923	[1]
Total	293,016	[1]
Accumulated Depreciation	70,362	[1]
625 Madison Avenue
Initial Cost
Building & Improvements	246,673	[1]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	35,576	[1]
Gross Amount at Which Carried at Close of Period
Building & Improvements	282,249	[1]
Total	282,249	[1]
Accumulated Depreciation	77,982	[1]
485 Lexington Avenue
Real Estate And Accumulated Depreciation
Encumbrances	450,000	[1]
Initial Cost
Land	77,517	[1]
Building & Improvements	326,825	[1]
Cost Capitalized Subsequent To Acquisition
Land	765	[1]
Building & Improvements	89,417	[1]
Gross Amount at Which Carried at Close of Period
Land	78,282	[1]
Building & Improvements	416,242	[1]
Total	494,524	[1]
Accumulated Depreciation	127,566	[1]
609 Fifth Avenue
Initial Cost
Land	36,677	[1]
Building & Improvements	145,954	[1]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	7,814	[1]
Gross Amount at Which Carried at Close of Period
Land	36,677	[1]
Building & Improvements	153,768	[1]
Total	190,445	[1]
Accumulated Depreciation	32,939	[1]
120 West 45th Street
Real Estate And Accumulated Depreciation
Encumbrances	170,000	[1]
Initial Cost
Land	60,766	[1]
Building & Improvements	250,922	[1]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	22,227	[1]
Gross Amount at Which Carried at Close of Period
Land	60,766	[1]
Building & Improvements	273,149	[1]
Total	333,915	[1]
Accumulated Depreciation	58,601	[1]
810 Seventh Avenue
Initial Cost
Land	114,077	[1]
Building & Improvements	476,386	[1]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	54,441	[1]
Gross Amount at Which Carried at Close of Period
Land	114,077	[1]
Building & Improvements	530,827	[1]
Total	644,904	[1]
Accumulated Depreciation	114,957	[1]
919 Third Avenue
Real Estate And Accumulated Depreciation
Encumbrances	500,000	[1],[3]
Initial Cost
Land	223,529	[1],[3]
Building & Improvements	1,033,198	[1],[3]
Cost Capitalized Subsequent To Acquisition
Land	35,410	[1],[3]
Building & Improvements	22,564	[1],[3]
Gross Amount at Which Carried at Close of Period
Land	258,939	[1],[3]
Building & Improvements	1,055,762	[1],[3]
Total	1,314,701	[1],[3]
Accumulated Depreciation	216,685	[1],[3]
Interest in property (as a percent)	51.00%
1185 Avenue of the Americas
Initial Cost
Building & Improvements	728,213	[1]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	35,260	[1]
Gross Amount at Which Carried at Close of Period
Building & Improvements	763,473	[1]
Total	763,473	[1]
Accumulated Depreciation	175,368	[1]
1350 Avenue of the Americas
Initial Cost
Land	91,038	[1]
Building & Improvements	380,744	[1]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	29,132	[1]
Gross Amount at Which Carried at Close of Period
Land	91,038	[1]
Building & Improvements	409,876	[1]
Total	500,914	[1]
Accumulated Depreciation	90,325	[1]
1100 King Street - 1-7 International Drive
Initial Cost
Land	49,392	[4]
Building & Improvements	104,376	[4]
Cost Capitalized Subsequent To Acquisition
Land	2,473	[4]
Building & Improvements	19,385	[4]
Gross Amount at Which Carried at Close of Period
Land	51,865	[4]
Building & Improvements	123,761	[4]
Total	175,626	[4]
Accumulated Depreciation	31,003	[4]
520 White Plains Road
Initial Cost
Land	6,324	[4]
Building & Improvements	26,096	[4]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	4,785	[4]
Gross Amount at Which Carried at Close of Period
Land	6,324	[4]
Building & Improvements	30,881	[4]
Total	37,205	[4]
Accumulated Depreciation	7,755	[4]
115-117 Stevens Avenue
Initial Cost
Land	5,933	[4]
Building & Improvements	23,826	[4]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	6,334	[4]
Gross Amount at Which Carried at Close of Period
Land	5,933	[4]
Building & Improvements	30,160	[4]
Total	36,093	[4]
Accumulated Depreciation	7,967	[4]
100 Summit Lake Drive
Initial Cost
Land	10,526	[4]
Building & Improvements	43,109	[4]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	7,213	[4]
Gross Amount at Which Carried at Close of Period
Land	10,526	[4]
Building & Improvements	50,322	[4]
Total	60,848	[4]
Accumulated Depreciation	11,863	[4]
200 Summit Lake Drive
Initial Cost
Land	11,183	[4]
Building & Improvements	47,906	[4]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	7,217	[4]
Gross Amount at Which Carried at Close of Period
Land	11,183	[4]
Building & Improvements	55,123	[4]
Total	66,306	[4]
Accumulated Depreciation	12,600	[4]
500 Summit Lake Drive
Initial Cost
Land	9,777	[4]
Building & Improvements	39,048	[4]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	5,643	[4]
Gross Amount at Which Carried at Close of Period
Land	9,777	[4]
Building & Improvements	44,691	[4]
Total	54,468	[4]
Accumulated Depreciation	9,495	[4]
140 Grand Street
Initial Cost
Land	6,865	[4]
Building & Improvements	28,264	[4]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	4,606	[4]
Gross Amount at Which Carried at Close of Period
Land	6,865	[4]
Building & Improvements	32,870	[4]
Total	39,735	[4]
Accumulated Depreciation	7,734	[4]
360 Hamilton Avenue
Initial Cost
Land	29,497	[4]
Building & Improvements	118,250	[4]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	12,851	[4]
Gross Amount at Which Carried at Close of Period
Land	29,497	[4]
Building & Improvements	131,101	[4]
Total	160,598	[4]
Accumulated Depreciation	29,031	[4]
1-6 Landmark Square
Real Estate And Accumulated Depreciation
Encumbrances	81,269	[5]
Initial Cost
Land	50,947	[5]
Building & Improvements	195,167	[5]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	30,206	[5]
Gross Amount at Which Carried at Close of Period
Land	50,947	[5]
Building & Improvements	225,373	[5]
Total	276,320	[5]
Accumulated Depreciation	48,469	[5]
7 Landmark Square
Initial Cost
Land	2,088	[5]
Building & Improvements	7,748	[5]
Cost Capitalized Subsequent To Acquisition
Land	(367)	[5]
Building & Improvements	(133)	[5]
Gross Amount at Which Carried at Close of Period
Land	1,721	[5]
Building & Improvements	7,615	[5]
Total	9,336	[5]
Accumulated Depreciation	600	[5]
680 Washington Boulevard
Initial Cost
Land	11,696	[3],[5]
Building & Improvements	45,364	[3],[5]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	4,561	[3],[5]
Gross Amount at Which Carried at Close of Period
Land	11,696	[3],[5]
Building & Improvements	49,925	[3],[5]
Total	61,621	[3],[5]
Accumulated Depreciation	11,118	[3],[5]
Interest in property (as a percent)	51.00%
750 Washington Boulevard
Initial Cost
Land	16,916	[3],[5]
Building & Improvements	68,849	[3],[5]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	7,433	[3],[5]
Gross Amount at Which Carried at Close of Period
Land	16,916	[3],[5]
Building & Improvements	76,282	[3],[5]
Total	93,198	[3],[5]
Accumulated Depreciation	16,313	[3],[5]
Interest in property (as a percent)	51.00%
1010 Washington Boulevard
Initial Cost
Land	7,747	[5]
Building & Improvements	30,423	[5]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	5,058	[5]
Gross Amount at Which Carried at Close of Period
Land	7,747	[5]
Building & Improvements	35,481	[5]
Total	43,228	[5]
Accumulated Depreciation	7,695	[5]
500 West Putnam Avenue
Real Estate And Accumulated Depreciation
Encumbrances	22,968	[5]
Initial Cost
Land	11,210	[5]
Building & Improvements	44,782	[5]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	4,734	[5]
Gross Amount at Which Carried at Close of Period
Land	11,210	[5]
Building & Improvements	49,516	[5]
Total	60,726	[5]
Accumulated Depreciation	10,272	[5]
150 Grand Street
Initial Cost
Land	1,371	[4]
Building & Improvements	5,446	[4]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	11,225	[4]
Gross Amount at Which Carried at Close of Period
Land	1,371	[4]
Building & Improvements	16,671	[4]
Total	18,042	[4]
Accumulated Depreciation	1,770	[4]
400 Summit Lake Drive
Initial Cost
Land	38,889	[4]
Cost Capitalized Subsequent To Acquisition
Land	285	[4]
Building & Improvements	1	[4]
Gross Amount at Which Carried at Close of Period
Land	39,174	[4]
Building & Improvements	1	[4]
Total	39,175	[4]
Accumulated Depreciation	1	[4]
331 Madison Avenue
Initial Cost
Land	14,763	[1]
Building & Improvements	65,241	[1]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	2,681	[1]
Gross Amount at Which Carried at Close of Period
Land	14,763	[1]
Building & Improvements	67,922	[1]
Total	82,685	[1]
Accumulated Depreciation	13,923	[1]
1055 Washington Boulevard
Initial Cost
Land	13,516	[5]
Building & Improvements	53,228	[5]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	3,492	[5]
Gross Amount at Which Carried at Close of Period
Land	13,516	[5]
Building & Improvements	56,720	[5]
Total	70,236	[5]
Accumulated Depreciation	12,515	[5]
One Madison Avenue
Real Estate And Accumulated Depreciation
Encumbrances	565,742	[1]
Initial Cost
Land	172,641	[1]
Building & Improvements	654,394	[1]
Cost Capitalized Subsequent To Acquisition
Land	905	[1]
Building & Improvements	15,297	[1]
Gross Amount at Which Carried at Close of Period
Land	173,546	[1]
Building & Improvements	669,691	[1]
Total	843,237	[1]
Accumulated Depreciation	124,795	[1]
125 Chubb Way
Initial Cost
Land	5,884	[6]
Building & Improvements	25,958	[6]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	23,832	[6]
Gross Amount at Which Carried at Close of Period
Land	5,884	[6]
Building & Improvements	49,790	[6]
Total	55,674	[6]
Accumulated Depreciation	5,263	[6]
100 Church
Real Estate And Accumulated Depreciation
Encumbrances	228,612	[1]
Initial Cost
Land	32,494	[1]
Building & Improvements	79,996	[1]
Cost Capitalized Subsequent To Acquisition
Land	2,500	[1]
Building & Improvements	84,235	[1]
Gross Amount at Which Carried at Close of Period
Land	34,994	[1]
Building & Improvements	164,231	[1]
Total	199,225	[1]
Accumulated Depreciation	27,245	[1]
125 Park Avenue
Initial Cost
Land	120,900	[1]
Building & Improvements	189,714	[1]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	42,165	[1]
Gross Amount at Which Carried at Close of Period
Land	120,900	[1]
Building & Improvements	231,879	[1]
Total	352,779	[1]
Accumulated Depreciation	34,869	[1]
885 Third Avenue
Real Estate And Accumulated Depreciation
Encumbrances	267,650	[1]
Initial Cost
Land	131,766	[1]
Cost Capitalized Subsequent To Acquisition
Land	110,771	[1]
Gross Amount at Which Carried at Close of Period
Land	242,537	[1]
Total	242,537	[1]
Williamsburg
Initial Cost
Land	3,677	[7]
Building & Improvements	14,708	[7]
Cost Capitalized Subsequent To Acquisition
Land	2,523	[7]
Building & Improvements	(4,550)	[7]
Gross Amount at Which Carried at Close of Period
Land	6,200	[7]
Building & Improvements	10,158	[7]
Total	16,358	[7]
Accumulated Depreciation	1,082	[7]
1515 Broadway
Real Estate And Accumulated Depreciation
Encumbrances	900,000	[1]
Initial Cost
Land	462,700	[1]
Building & Improvements	707,938	[1]
Cost Capitalized Subsequent To Acquisition
Land	1,145	[1]
Building & Improvements	68,978	[1]
Gross Amount at Which Carried at Close of Period
Land	463,845	[1]
Building & Improvements	776,916	[1]
Total	1,240,761	[1]
Accumulated Depreciation	88,018	[1]
110 East 42nd Street
Initial Cost
Land	34,000	[1]
Building & Improvements	46,411	[1]
Cost Capitalized Subsequent To Acquisition
Land	2,354	[1]
Building & Improvements	17,179	[1]
Gross Amount at Which Carried at Close of Period
Land	36,354	[1]
Building & Improvements	63,590	[1]
Total	99,944	[1]
Accumulated Depreciation	9,194	[1]
51 East 42nd Street
Initial Cost
Land	44,095	[1]
Building & Improvements	33,470	[1]
Cost Capitalized Subsequent To Acquisition
Land	5	[1]
Building & Improvements	5,607	[1]
Gross Amount at Which Carried at Close of Period
Land	44,100	[1]
Building & Improvements	39,077	[1]
Total	83,177	[1]
Accumulated Depreciation	3,278	[1]
400 East 57th Street
Real Estate And Accumulated Depreciation
Encumbrances	68,896	[1],[8]
Initial Cost
Land	39,780	[1],[8]
Building & Improvements	69,895	[1],[8]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	10,786	[1],[8]
Gross Amount at Which Carried at Close of Period
Land	39,780	[1],[8]
Building & Improvements	80,681	[1],[8]
Total	120,461	[1],[8]
Accumulated Depreciation	5,536	[1],[8]
Interest in property (as a percent)	80.00%
400 East 58th Street
Real Estate And Accumulated Depreciation
Encumbrances	29,527	[1],[8]
Initial Cost
Land	17,549	[1],[8]
Building & Improvements	30,916	[1],[8]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	4,673	[1],[8]
Gross Amount at Which Carried at Close of Period
Land	17,549	[1],[8]
Building & Improvements	35,589	[1],[8]
Total	53,138	[1],[8]
Accumulated Depreciation	2,402	[1],[8]
Interest in property (as a percent)	80.00%
752 Madison Avenue
Initial Cost
Land	282,415	[1],[8]
Building & Improvements	7,131	[1],[8]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	10	[1],[8]
Gross Amount at Which Carried at Close of Period
Land	282,415	[1],[8]
Building & Improvements	7,141	[1],[8]
Total	289,556	[1],[8]
Accumulated Depreciation	644	[1],[8]
Interest in property (as a percent)	80.00%
762 Madison Avenue
Real Estate And Accumulated Depreciation
Encumbrances	8,045	[1],[8]
Initial Cost
Land	6,153	[1],[8]
Building & Improvements	10,461	[1],[8]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	90	[1],[8]
Gross Amount at Which Carried at Close of Period
Land	6,153	[1],[8]
Building & Improvements	10,551	[1],[8]
Total	16,704	[1],[8]
Accumulated Depreciation	805	[1],[8]
Interest in property (as a percent)	80.00%
19-21 East 65th Street
Initial Cost
Building & Improvements	7,389	[1],[8]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	159	[1],[8]
Gross Amount at Which Carried at Close of Period
Building & Improvements	7,548	[1],[8]
Total	7,548	[1],[8]
Accumulated Depreciation	559	[1],[8]
Interest in property (as a percent)	80.00%
304 Park Avenue
Initial Cost
Land	54,189	[1]
Building & Improvements	75,619	[1]
Cost Capitalized Subsequent To Acquisition
Land	300	[1]
Building & Improvements	6,336	[1]
Gross Amount at Which Carried at Close of Period
Land	54,489	[1]
Building & Improvements	81,955	[1]
Total	136,444	[1]
Accumulated Depreciation	7,465	[1]
635 Sixth Avenue
Initial Cost
Land	24,180	[1]
Building & Improvements	37,158	[1]
Cost Capitalized Subsequent To Acquisition
Land	163	[1]
Building & Improvements	38,104	[1]
Gross Amount at Which Carried at Close of Period
Land	24,343	[1]
Building & Improvements	75,262	[1]
Total	99,605	[1]
641 Sixth Avenue
Initial Cost
Land	45,668	[1]
Building & Improvements	67,316	[1]
Cost Capitalized Subsequent To Acquisition
Land	308	[1]
Building & Improvements	793	[1]
Gross Amount at Which Carried at Close of Period
Land	45,976	[1]
Building & Improvements	68,109	[1]
Total	114,085	[1]
Accumulated Depreciation	5,076	[1]
1080 Amsterdam
Initial Cost
Building & Improvements	27,445	[1],[9]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	20,182	[1],[9]
Gross Amount at Which Carried at Close of Period
Building & Improvements	47,627	[1],[9]
Total	47,627	[1],[9]
Interest in property (as a percent)	87.50%
131-137 Spring Street
Initial Cost
Land	27,021	[1]
Building & Improvements	105,342	[1]
Cost Capitalized Subsequent To Acquisition
Land	154	[1]
Building & Improvements	3,384	[1]
Gross Amount at Which Carried at Close of Period
Land	27,175	[1]
Building & Improvements	108,726	[1]
Total	135,901	[1]
Accumulated Depreciation	5,606	[1]
248-252 Bedford Avenue
Real Estate And Accumulated Depreciation
Encumbrances	29,000	[10],[7]
Initial Cost
Land	10,865	[10],[7]
Building & Improvements	44,035	[10],[7]
Cost Capitalized Subsequent To Acquisition
Land	(2,194)	[10],[7]
Building & Improvements	(6,784)	[10],[7]
Gross Amount at Which Carried at Close of Period
Land	8,671	[10],[7]
Building & Improvements	37,251	[10],[7]
Total	45,922	[10],[7]
Accumulated Depreciation	1,490	[10],[7]
Interest in property (as a percent)	90.00%
16 Court Street
Initial Cost
Land	19,217	[7]
Building & Improvements	63,210	[7]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	4,954	[7]
Gross Amount at Which Carried at Close of Period
Land	19,217	[7]
Building & Improvements	68,164	[7]
Total	87,381	[7]
Accumulated Depreciation	4,604	[7]
315 West 33rd Street
Initial Cost
Land	195,834	[1]
Building & Improvements	164,429	[1]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	3,180	[1]
Gross Amount at Which Carried at Close of Period
Land	195,834	[1]
Building & Improvements	167,609	[1]
Total	363,443	[1]
Accumulated Depreciation	5,396	[1]
Fifth Avenue Retail Assemblage
Initial Cost
Land	135,513	[1]
Building & Improvements	10,487	[1]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	3,356	[1]
Gross Amount at Which Carried at Close of Period
Land	135,513	[1]
Building & Improvements	13,843	[1]
Total	149,356	[1]
Accumulated Depreciation	1,364	[1]
388-390 Greenwich Street
Real Estate And Accumulated Depreciation
Encumbrances	1,450,000	[1]
Initial Cost
Land	558,731	[1]
Building & Improvements	1,037,729	[1]
Cost Capitalized Subsequent To Acquisition
Building & Improvements	68,780	[1]
Gross Amount at Which Carried at Close of Period
Land	558,731	[1]
Building & Improvements	1,106,509	[1]
Total	1,665,240	[1]
Accumulated Depreciation	18,308	[1]
719 Seventh Avenue
Initial Cost
Land	14,402	[1],[11]
Building & Improvements	26,866	[1],[11]
Gross Amount at Which Carried at Close of Period
Land	14,402	[1],[11]
Building & Improvements	26,866	[1],[11]
Total	41,268	[1],[11]
Accumulated Depreciation	334	[1],[11]
Interest in property (as a percent)	75.00%
115 Spring Street
Initial Cost
Land	15,938	[1]
Building & Improvements	37,309	[1]
Gross Amount at Which Carried at Close of Period
Land	15,938	[1]
Building & Improvements	37,309	[1]
Total	53,247	[1]
635 Madison Avenue
Initial Cost
Land	153,745	[1]
Gross Amount at Which Carried at Close of Period
Land	153,745	[1]
Total	153,745	[1]
102 Greene Street
Initial Cost
Land	11,288	[1]
Building & Improvements	20,963	[1]
Gross Amount at Which Carried at Close of Period
Land	11,288	[1]
Building & Improvements	20,963	[1]
Total	32,251	[1]
Accumulated Depreciation	131	[1]
Other
Initial Cost
Land	1,130	[12]
Cost Capitalized Subsequent To Acquisition
Land	1,003	[12]
Building & Improvements	11,803	[12]
Gross Amount at Which Carried at Close of Period
Land	2,133	[12]
Building & Improvements	11,803	[12]
Total	13,936	[12]
Accumulated Depreciation	$ 3,194	[12]

[1] Property located in New York, New York.

[2] We own a 50.0% interest in this property.

[3] We own a 51.0% interest in this property.

[4] Property located in Westchester County, New York.

[5] Property located in Connecticut.

[6] Property located in New Jersey.

[7] Property located in Brooklyn, New York.

[8] We own an 80.0% interest in this property.

[9] We own an 87.5% interest in this property.

[10] We own a 90.0% interest in this property.

[11] We own a 75.0% interest in this property.

[12] Other includes tenant improvements at eEmerge, capitalized interest and corporate improvements.