Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Revenues
Rental revenue, net	$ 273,307	$ 263,838	$ 539,755	$ 520,595
Escalation and reimbursement	39,381	40,967	79,926	82,080
Investment and preferred equity income	46,731	33,448	99,439	59,786
Other income	5,726	6,282	11,493	16,659
Total revenues	365,145	344,535	730,613	679,120
Expenses
Operating expenses, including approximately $4,319 and $8,469 (2013) and $4,773 and $8,244 (2012) paid to related parties	69,432	67,434	141,630	139,319
Real estate taxes	52,710	52,256	106,114	103,453
Ground rent	8,649	8,890	19,640	17,696
Interest expense, net of interest income	83,276	82,159	164,447	162,130
Amortization of deferred financing costs	4,240	3,553	8,703	7,133
Depreciation and amortization	82,020	76,207	161,114	151,739
Loan loss and other investment reserves, net of recoveries				564
Transaction related costs	1,711	1,970	3,068	3,026
Marketing, general and administrative	21,514	20,721	42,582	40,917
Total expenses	323,552	313,190	647,298	625,977
Income from continuing operations before equity in net (loss) income from unconsolidated joint ventures, equity in net (loss) gain on sale of interest in unconsolidated joint venture/real estate, loss on sale of investment in marketable securities, purchase price fair value adjustment, depreciable real estate reserves, net of recoveries, and loss on early extinguishment of debt	41,593	31,345	83,315	53,143
Equity in net (loss) income from unconsolidated joint ventures	(3,761)	70,890	1,313	69,330
Equity in net (loss) gain on sale of interest in unconsolidated joint venture/real estate	(3,583)	9,534	(3,583)	16,794
Loss on sale of investment in marketable securities	(8)		(65)
Purchase price fair value adjustment	(2,305)		(2,305)
Depreciable real estate reserves, net of recoveries		5,789		5,789
Loss on early extinguishment of debt	(10)		(18,523)
Income from continuing operations	31,926	117,558	60,152	145,056
Net (loss) income from discontinued operations	(678)	899	320	1,931
Gain on sale of discontinued operations			1,113	6,627
Net income	31,248	118,457	61,585	153,614
Net income attributable to noncontrolling interests in other partnerships	(3,004)	(3,887)	(5,905)	(4,958)
Preferred unit distributions	(565)	(565)	(1,130)	(962)
Net income attributable to SLGOP	27,679	114,005	54,550	147,694
Preferred unit redemption costs	(12,160)		(12,160)
Perpetual preferred unit distributions	(6,999)	(7,544)	(14,406)	(15,089)
Net income attributable to SLGOP common unitholders	8,520	106,461	27,984	132,605
Amounts attributable to SLGOP common unitholders:
Income from continuing operations	15,086	96,028	32,439	107,253
Purchase price fair value adjustment	(2,305)		(2,305)
Equity in net (loss) gain on sale of interest in unconsolidated joint venture/real estate	(3,583)	9,534	(3,583)	16,794
Net (loss) income from discontinued operations	(678)	899	320	1,931
Gain on sale of discontinued operations			1,113	6,627
Net income attributable to SLGOP common unitholders	$ 8,520	$ 106,461	$ 27,984	$ 132,605
Basic earnings per unit:
Net income from continuing operations before discontinued operations (in dollars per unit)	$ 0.14	$ 1.04	$ 0.32	$ 1.18
Equity in net (loss) gain on sale of interest in unconsolidated joint venture/real estate (in dollars per unit)	$ (0.04)	$ 0.10	$ (0.03)	$ 0.18
Net (loss) income from discontinued operations (in dollars per unit)	$ (0.01)	$ 0.01		$ 0.02
Gain on sale of discontinued operations (in dollars per unit)			$ 0.01	$ 0.07
Net income attributable to SLGOP common unitholders (in dollars per unit)	$ 0.09	$ 1.15	$ 0.30	$ 1.45
Diluted earnings per unit:
Net income from continuing operations before discontinued operations (in dollars per unit)	$ 0.14	$ 1.03	$ 0.32	$ 1.18
Equity in net (loss) gain on sale of interest in unconsolidated joint venture/real estate (in dollars per unit)	$ (0.04)	$ 0.10	$ (0.03)	$ 0.18
Net (loss) income from discontinued operations (in dollars per unit)	$ (0.01)	$ 0.01		$ 0.02
Gain on sale of discontinued operations (in dollars per unit)			$ 0.01	$ 0.07
Net income attributable to SLGOP common unitholders (in dollars per unit)	$ 0.09	$ 1.14	$ 0.30	$ 1.45
Dividends per unit (in dollars per unit)	$ 0.33	$ 0.25	$ 0.66	$ 0.50
Basic weighted average common units outstanding (in units)	94,312	92,982	94,224	91,386
Diluted weighted average common units and common unit equivalents outstanding (in units)	94,536	93,351	94,452	91,766