CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
REVENUE
Rental	$ 747,570	$ 466,498	$ 400,972
Tenant reimbursements	24,944	14,619	9,776
Other	5,861	1,730	1,612
Total revenue	778,375	482,847	412,360
EXPENSES
Depreciation and amortization	306,577	147,323	116,546
Interest	180,916	122,542	108,301
General and administrative	56,827	37,998	30,954
Property (including reimbursable)	38,838	21,297	15,457
Income taxes	2,734	1,430	1,470
Merger-related costs	13,013	7,899
Provisions for impairment	290	3,639	10
Total expenses	599,195	342,128	272,738
Income from continuing operations	179,180	140,719	139,622
Income from discontinued operations	67,103	18,433	17,410
Net income	246,283	159,152	157,032
Net income attributable to noncontrolling interests	(719)
Net income attributable to the Company	245,564	159,152	157,032
Preferred stock dividends	(41,930)	(40,918)	(24,253)
Excess of redemption value over carrying value of preferred shares redeemed (see note 10)		(3,696)
Net income available to common stockholders	$ 203,634	$ 114,538	$ 132,779
Income from continuing operations:
Basic (in dollars per share)	$ 0.71	$ 0.72	$ 0.91
Diluted (in dollars per share)	$ 0.71	$ 0.72	$ 0.91
Net income:
Basic (in dollars per share)	$ 1.06	$ 0.86	$ 1.05
Diluted (in dollars per share)	$ 1.06	$ 0.86	$ 1.05
Weighted average common shares outstanding:
Basic (in shares)	191,754,857	132,817,472	126,142,696
Diluted (in shares)	191,781,622	132,884,933	126,189,399