Common Share Capitalization (Tables)

9 Months Ended

Sep. 30, 2017

Stockholders' Equity Note [Abstract]

Summary of Common Shares Outstanding

The following table summarizes issuance, repurchase, and other activity with respect to the Company's common shares for the three and nine month periods ended September 30, 2017 and 2016:

	Three Month Period Ended				Nine Month Period Ended
	September 30, 2017		September 30, 2016		September 30, 2017		September 30, 2016
Common Shares Outstanding (6/30/2017, 6/30/2016, 12/31/2016, and 12/31/2015, respectively)	32,112,697		32,743,356		32,294,703		33,126,012
Share Activity:
Shares repurchased	(123,321	)	(126,771	)	(305,327	)	(509,427	)
Director LTIP Units exercised	2,801		2,475		2,801		2,475
Common Shares Outstanding (9/30/2017, 9/30/2016, 9/30/2017, and 9/30/2016, respectively)	31,992,177		32,619,060		31,992,177		32,619,060