Consolidated Statement of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities:
Net income	$ 33,715	$ 19,513	$ 12,842
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	33,281	30,263	26,591
Non-cash interest income adjustments	79	24	0
Amortization of deferred financing costs	3,280	2,685	1,998
Stock-based compensation expense	7,819	8,279	4,600
Amortization of premium	(671)	(347)	(15)
Non-cash loss on extinguishment of debt	859	628	0
Straight-line rental income adjustments	(14,709)	(4,893)	(2,092)
Impairment	0	2,481	0
Change in fair value of contingent consideration	200	0	0
Changes in operating assets and liabilities:
Prepaid expenses and other assets	(3,459)	(82)	(1,035)
Accounts payable and accrued liabilities	5,430	1,321	5,695
Restricted cash	(3,725)	(3,620)	(3,879)
Net cash provided by operating activities	62,099	56,252	44,705
Cash flows from investing activities:
Acquisitions of real estate	(125,955)	(205,424)	(204,500)
Origination of loans receivable	(165,960)	(22,180)	0
Preferred equity investments	(7,038)	0	0
Acquisition of note receivable			(5,348)
Additions to real estate	(764)	(1,046)	(86)
Repayment of note receivable	0	10,000	5,348
Proceeds from sale of real estate	2,208	0	0
Net cash (used in) provided by investing activities	(297,509)	(218,650)	(204,586)
Cash flows from financing activities:
Proceeds from issuance of senior unsecured notes	200,000	106,000	0
Principal payments on senior unsecured notes	(113,750)	0	0
Proceeds from secured revolving credit facility	143,500	135,000	0
Payments on secured revolving credit facility	(100,500)	(42,500)	0
Proceeds from mortgage notes payable	0	56,651	0
Principal payments on mortgage notes payable	(10,994)	(62,226)	(3,027)
Payments of deferred financing costs	(8,954)	(6,800)	(677)
Payment of contingent consideration	(1,300)	0	0
Issuance of preferred stock	138,249	0	0
Issuance of common stock	34,517	53	163,242
Dividends paid	(58,151)	(48,929)	(31,640)
Net cash provided by financing activities	222,617	137,249	127,898
Net (decrease) increase in cash and cash equivalents	(12,793)	(25,149)	(31,983)
Cash and cash equivalents, beginning of period	17,101	42,250	74,233
Cash and cash equivalents, end of period	4,308	17,101	42,250
Supplemental disclosure of cash flow information:
Interest paid	$ 38,541	$ 32,613	$ 28,557