Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash flows from operating activities:
Net income	$ 35,679	$ 38,432
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	18,491	17,335
Amortization	1,263	1,069
Amortization of commitment fees	(119)	(552)
Amortization of lease incentives	168	63
Straight-line rental income	(5,228)	(5,962)
Non-cash interest income on construction loan	(548)	(436)
Loss on modification and extinguishment of debt	0	738
Loan and realty losses	2,500	0
Payment of lease incentives	(1,250)	0
Share-based compensation	2,001	1,425
Change in operating assets and liabilities:
Other assets	2,961	(3,876)
Accounts payable and accrued expenses	1,597	585
Deferred income	16,322	56
Net cash provided by operating activities	73,837	48,877
Cash flows from investing activities:
Investment in mortgage and other notes receivable	(11,002)	(5,905)
Collection of mortgage and other notes receivable	300	2,535
Investment in real estate	(50,122)	(14,404)
Investment in renovations of existing real estate	(4,215)	(1,812)
Net cash used in investing activities	(65,039)	(19,586)
Cash flows from financing activities:
Proceeds from revolving credit facilities	95,000	56,000
Payments on revolving credit facilities	(90,000)	(15,000)
Payments on term loans	(296)	(285)
Debt issuance costs	(67)	0
Value of shares withheld from options exercised for employee tax withholding	(1,006)	0
Proceeds from issuance of common shares, net	35,913	(56)
Consideration provided in convertible bond repurchase	0	(29,958)
Dividends paid to stockholders	(42,700)	(39,456)
Net cash provided by (used in) financing activities	(3,156)	(28,755)
Increase in cash and cash equivalents and restricted cash	5,642	536
Cash and cash equivalents, beginning of year	4,659
Cash and cash equivalents, end of year	5,177
Supplemental disclosure of cash flow information:
Interest Paid, Including Capitalized Interest, Operating and Investing Activities	11,901	9,904
Supplemental schedule of non-cash investing and financing activities:
Change in accounts payable related to investments in real estate construction	(1,048)	290
Change in accounts payable related to investments in real estate acquisition	1,178	0
Change in straight-line rent receivable related to investments in real estate	38,000	0
Change in other assets related to investments in real estate	176	0
Tenant investment in leased asset	0	1,275
Cash and cash equivalents and restricted cash, beginning of period	$ 15,554	$ 8,611