Consolidated Statements Of Income - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Revenues:
Rental income	$ 71,688,000	$ 68,204,000	$ 210,809,000	$ 197,077,000
Interest income	3,227,000	3,148,000	9,807,000	10,499,000
Revenues	74,915,000	71,352,000	220,616,000	207,576,000
Expenses:
Depreciation	18,153,000	17,023,000	53,282,000	50,006,000
Interest, including amortization of debt discount and issuance costs	12,374,000	11,746,000	36,207,000	35,139,000
Legal	371,000	215,000	705,000	417,000
Franchise, excise and other taxes	245,000	268,000	857,000	802,000
General and administrative	2,793,000	2,513,000	9,727,000	9,143,000
Loan and realty losses	0	0	1,849,000	0
Total operating expenses	33,936,000	31,765,000	102,627,000	95,507,000
Income before investment and other gains	40,979,000	39,587,000	117,989,000	112,069,000
Investment and other gains	0	0	0	10,088,000
Loss on convertible note retirement	0	(495,000)	(738,000)	(591,000)
Net income	$ 40,979,000	$ 39,092,000	$ 117,251,000	$ 121,566,000
Weighted average common shares outstanding:
Basic	42,187,077	41,108,699	41,808,017	40,681,582
Diluted	42,434,499	41,448,263	41,932,736	40,937,337
Basic:
Net income per common share attributable to common stockholders	$ 0.97	$ 0.95	$ 2.80	$ 2.99
Diluted:
Net income per common share attributable to common stockholders	$ 0.97	$ 0.94	$ 2.80	$ 2.97