Subsequent Events (Tables)

3 Months Ended

Mar. 31, 2018

Schedule of Record and Payments Dates for Preferred Stock Dividends

On May 3, 2018, the Company’s board of directors declared a monthly cash dividend to holders of the Series F Preferred Stock for July 2018 through September 2018 with respect to the periods included in the table below. The corresponding record and payment dates for each month's Series F Preferred Stock dividend are also shown in the table below. The dividend for the Series F Preferred Stock accrues daily on a 360-day annual basis equal to an annualized dividend rate of $1.675 per share, or $0.1395833 per 30-day month.



Period	Record Date	Payment Date
June 15, 2018 - July 14, 2018	July 1, 2018	July 16, 2018
July 15, 2018 - August 14, 2018	August 1, 2018	August 15, 2018
August 15, 2018 - September 14, 2018	September 1, 2018	September 17, 2018