Distributions (Tables)

12 Months Ended

Dec. 31, 2018

Distributions [Abstract]

Summary of Payment of Distributions to Shareholders

The following cash distributions, including dividends reinvested, were paid to common shareholders during the three years ended December 31, 2018, 2017 and 2016:

	2018				2017				2016
Quarter Ended	Amount		Per Share		Amount		Per Share		Amount		Per Share
March 31	$	6,492,774	$	0.18	$	5,416,827	$	0.18	$	4,879,009	$	0.18
June 30		6,600,506		0.18		5,700,036		0.18		4,903,286		0.18
September 30		6,693,069		0.18		6,188,961		0.18		5,031,818		0.18
December 31		6,824,288		0.18		6,333,573		0.18		5,204,709		0.18
	$	26,610,637	$	0.72	$	23,639,397	$	0.72	$	20,018,822	$	0.72

Summary of Payment of Dividends to Preferred Shareholders

The following dividends were paid to holders of our Series A Preferred Stock during the year ended December 31, 2017 and 2016:

Declaration Date	Record Date	Payment Date	Dividend		Dividend per Share
1/19/2017	2/15/2017	3/15/2017	$	1,889,147	$	0.515625
4/3/2017	5/15/2017	6/15/2017		1,889,147		0.515625
7/3/2017	8/15/2017	9/15/2017		1,889,147		0.515625
			$	5,667,441	$	1.546875
1/15/2016	2/16/2016	3/15/2016	$	1,889,147	$	0.515625
4/4/2016	5/16/2016	6/15/2016		1,889,147		0.515625
7/1/2016	8/15/2016	9/15/2016		1,889,147		0.515625
10/3/2016	11/17/2016	12/15/2016		1,889,147		0.515625
			$	7,556,588	$	2.0625

The following dividends were paid to holders of our Series B Preferred Stock during the year ended December 31, 2018, 2017 and 2016:

Declaration Date	Record Date	Payment Date	Dividend		Dividend per Share
1/15/2018	2/15/2018	3/15/2018	$	1,900,600	$	0.50
4/1/2018	5/15/2018	6/15/2018		1,900,600		0.50
7/1/2018	8/15/2018	9/17/2018		1,900,600		0.50
10/1/2018	11/15/2018	12/17/2018		1,900,600		0.50
			$	7,602,400	$	2.00
1/19/2017	2/15/2017	3/15/2017	$	1,900,600	$	0.50
4/3/2017	5/15/2017	6/15/2017		1,900,600		0.50
7/3/2017	8/15/2017	9/15/2017		1,900,600		0.50
10/2/2017	11/15/2017	12/15/2017		1,900,600		0.50
			$	7,602,400	$	2.00
1/15/2016	2/16/2016	3/15/2016	$	1,305,257	$	0.72466
4/4/2016	5/16/2016	6/15/2016		1,900,600		0.50
7/1/2016	8/15/2016	9/15/2016		1,900,600		0.50
10/3/2016	11/17/2016	12/15/2016		1,900,600		0.50
			$	7,007,057	$	2.22466

The following dividends were paid to holders of our Series C Preferred Stock during the year ended December 31, 2018 and 2017:

Declaration Date	Record Date	Payment Date	Dividend		Dividend per Share
1/15/2018	2/15/2018	3/15/2018	$	2,425,781	$	0.421875
4/1/2018	5/15/2018	6/15/2018		2,425,781		0.421875
7/1/2018	8/15/2018	9/17/2018		2,425,781		0.421875
10/1/2018	11/15/2018	12/17/2018		2,425,781		0.421875
			$	9,703,124	$	1.68750
7/3/2017	8/15/2017	9/15/2017	$	970,313	$	0.168750
10/2/2017	11/15/2017	12/15/2017		2,425,781		0.421875
			$	3,396,094	$	0.590625

The following dividends were paid to holders of our Series D Preferred Stock during the year ended December 31, 2018:

Declaration Date	Record Date	Payment Date	Dividend		Dividend per Share
1/15/2018	2/15/2018	3/15/2018	$	354,166	$	0.1770830
4/1/2018	5/15/2018	6/15/2018		796,876		0.3984375
7/1/2018	8/15/2018	9/17/2018		796,876		0.3984375
10/1/2018	11/15/2018	12/17/2018		796,876		0.3984375
			$	2,744,794	$	1.372397