Equity and Equity-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2021

Equity [Abstract]

Summary of Issuance Activity

The issuance activity is summarized below (in thousands):

	Three Months Ended March 31,
	2021
Shares sold to Lincoln Park	2,046
Gross proceeds received	$	4,590

The issuance activity is summarized below (in thousands):

	Three Months Ended March 31,
	2021
Shares sold to Lincoln Park	300
Additional commitment shares	163
Total shares issued to Lincoln Park	463
Gross proceeds received	$	809

The issuance activity is summarized below (in thousands):

	Three Months Ended March 31,
	2021
Shares sold to YA II PN, Ltd.	13,718
Gross proceeds received	$	40,556

Dividends Declared

The board of directors declared quarterly dividends as presented below:

	Three Months Ended March 31,
	2021		2020
8.45% Series D Cumulative Preferred Stock	$	—	$	0.5281
7.375% Series F Cumulative Preferred Stock	—		0.4609
7.375% Series G Cumulative Preferred Stock	—		0.4609
7.50% Series H Cumulative Preferred Stock	—		0.4688
7.50% Series I Cumulative Preferred Stock	—		0.4688

The table below presents the accumulated but unpaid dividends in arrears as of March 31, 2021 (in thousands):

	March 31, 2021
8.45% Series D Cumulative Preferred Stock ($2.11/share)	$	3,546
7.375% Series F Cumulative Preferred Stock ($1.84/share)	3,757
7.375% Series G Cumulative Preferred Stock ($1.84/share)	5,849
7.50% Series H Cumulative Preferred Stock ($1.88/share)	3,754
7.50% Series I Cumulative Preferred Stock ($1.88/share)	3,749
Total	$	20,655

Schedule of Shares Issued and Tendered

The table below summarizes the activity (in thousands):

	Three Months Ended March 31, 2021
	Preferred Shares Tendered	Common Shares Issued
8.45% Series D Cumulative Preferred Stock	112	787
7.375% Series F Cumulative Preferred Stock	853	5,704
7.375% Series G Cumulative Preferred Stock	1,251	8,980
7.50% Series H Cumulative Preferred Stock	667	4,817
7.50% Series I Cumulative Preferred Stock	1,391	9,148
	4,274	29,436