Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash flows from operating activities:
Net income	$ 38,432	$ 44,230
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	17,335	16,144
Amortization	1,069	1,337
Straight-line rental income	(5,962)	(5,755)
Non-cash interest income on construction loan	(436)	(271)
Gain on sale of real estate	0	(50)
Loss on modification and extinguishment of debt	738	0
Gain on sale of marketable securities	0	(10,038)
Share-based compensation	1,425	1,523
Amortization of commitment fees	(552)	(104)
Amortization of lease incentives	63	10
Change in operating assets and liabilities:
Other assets	(4,245)	(657)
Accounts payable and accrued expenses	641	2,306
Net cash provided by operating activities	48,508	48,675
Cash flows from investing activities:
Investment in mortgage and other notes receivable	(5,905)	(28,338)
Collection of mortgage and other notes receivable	2,535	12,109
Investment in real estate	(14,404)	(118,011)
Investment in real estate development	0	(3,842)
Investment in renovations of existing real estate	(1,812)	(994)
Proceeds from disposition of real estate properties	0	450
Proceeds from sales of marketable securities	0	18,182
Net cash used in investing activities	(19,586)	(120,444)
Cash flows from financing activities:
Proceeds from revolving credit facilities	56,000	112,000
Payments on revolving credit facilities	(15,000)	(83,000)
Payments on term loans	(285)	(196)
Value of shares withheld from options exercised for employee tax withholding	0	(116)
Proceeds from issuance of common shares, net	0	79,797
Deferred offering costs	(56)	0
Consideration provided in convertible bond repurchase	(29,958)	0
Dividends paid to stockholders	(39,456)	(35,863)
Net cash provided by (used in) financing activities	(28,755)	72,622
(Decrease) increase in cash and cash equivalents	167	853
Cash and cash equivalents, beginning of year	3,063	4,832
Cash and cash equivalents, end of year	3,230	5,685
Supplemental disclosure of cash flow information:
Interest Paid	9,904	9,164
Supplemental schedule of non-cash investing and financing activities:
Accounts payable related to investments in real estate	290	824
Tenant investment in leased asset	$ 1,275	$ 1,250