CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
REVENUE
Rental	$ 214,122	$ 167,798
Tenant reimbursements	6,427	6,027
Other	1,023	1,697
Total revenue	221,572	175,522
EXPENSES
Depreciation and amortization	89,970	66,749
Interest	51,720	41,599
General and administrative	12,886	11,628
Property (including reimbursable)	10,577	9,572
Income taxes	1,091	577
Merger-related costs		12,030
Provisions for impairment	1,683
Total expenses	167,927	142,155
Gain on sale of real estate	1,271
Income from continuing operations	54,916	33,367
Income from discontinued operations	3,077	39,859
Net income	57,993	73,226
Net income attributable to noncontrolling interests	(332)	(9)
Net income attributable to the Company	57,661	73,217
Preferred stock dividends	(10,482)	(10,482)
Net income available to common stockholders	$ 47,179	$ 62,735
Amounts available to common stockholders per common share:
Income from continuing operations, basic and diluted (in dollars per share)	$ 0.21	$ 0.13
Net income:
Basic (in dollars per share)	$ 0.23	$ 0.37
Diluted (in dollars per share)	$ 0.23	$ 0.36
Weighted average common shares outstanding:
Basic (in shares)	207,003,950	171,659,191
Diluted (in shares)	207,324,363	172,053,880