Equity (Tables)

12 Months Ended

Dec. 31, 2017

Equity [Abstract]

Dividends on common shares/units

The Company declared the following dividends on common shares/units for the year endedDecember 31, 2017:

Dividend per Share/Unit		For the Quarter Ended	Record Date	Payable Date
$	0.38	March 31, 2017	March 31, 2017	April 17, 2017
$	0.38	June 30, 2017	June 30, 2017	July 17, 2017
$	0.38	September 30, 2017	September 29, 2017	October 16, 2017
$	0.38	December 31, 2017	December 29, 2017	January 12, 2018

Dividends on preferred shares

The Company declared the following dividends on preferred shares for the year endedDecember 31, 2017:

Security Type	Dividend  per Share/Unit		For the Quarter Ended	Record Date	Payable Date
6.50% Series C	$	0.41	March 31, 2017	March 31, 2017	April 17, 2017
6.50% Series C	$	0.41	June 30, 2017	June 30, 2017	July 17, 2017
6.50% Series C	$	0.41	September 30, 2017	September 29, 2017	October 16, 2017
6.50% Series C	$	0.41	December 31, 2017	December 29, 2017	January 12, 2018
6.375% Series D	$	0.40	March 31, 2017	March 31, 2017	April 17, 2017
6.375% Series D	$	0.40	June 30, 2017	June 30, 2017	July 17, 2017
6.375% Series D	$	0.40	September 30, 2017	September 29, 2017	October 16, 2017
6.375% Series D	$	0.40	December 31, 2017	December 29, 2017	January 12, 2018