Shareholders' Equity

6 Months Ended

Jun. 30, 2018

Stockholders' Equity Note [Abstract]

Shareholders’ Equity

Common Share Issuances:

See Note 11 for information regarding equity issuances related to share-based compensation.

Common Share Repurchases:

On March 15, 2017, our Board of Trustees authorized the repurchase of up to $150.0 million of our outstanding common shares over the twelve month period following the date of authorization. In March 2018, this share repurchase authorization, of which $81.0 million was not utilized, expired. On March 14, 2018, our Board of Trustees authorized the repurchase of up to an additional $150.0 million of our outstanding common shares over the twelve month period following the date of authorization. During the six months ended June 30, 2018, we repurchased and retired 2,970,209 of our common shares, at a weighted average price of $29.67 per share, for a total investment of $88.1 million, of which $69.0 million was under the March 2017 authorization and $19.1 million was under the March 2018 authorization. The $130.9 million of remaining authorization available under our share repurchase program as of June 30, 2018 is scheduled to expire on March 14, 2019.

During the six months ended June 30, 2018 and 2017, certain of our employees surrendered 57,348 and 6,694 common shares owned by them, respectively, to satisfy their statutory tax withholding obligations in connection with the vesting of such common shares.

Preferred Share Distributions:

In 2018, our Board of Trustees declared distributions on our series D preferred shares to date as follows:



Declaration Date	Record Date	Payment Date	Series D Dividend Per Share
January 12, 2018	January 30, 2018	February 15, 2018	$	0.40625
April 11, 2018	April 27, 2018	May 15, 2018	$	0.40625
July 12, 2018	July 30, 2018	August 15, 2018	$	0.40625