Common Share Capitalization (Tables)

6 Months Ended

Jun. 30, 2018

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 six-month periods ended June 30, 2018 and 2017:

	Three-Month Period Ended June 30, 2018		Three-Month Period Ended June 30, 2017		Six-Month Period Ended June 30, 2018		Six-Month Period Ended June 30, 2017
Common Shares Outstanding (3/31/2018, 3/21/2017, 12/31/2017, and 12/31/2016, respectively)	30,392,041		32,164,215		31,335,938		32,294,703
Share Activity:
Shares repurchased	(242,161	)	(51,518	)	(1,186,058	)	(182,006	)
Director LTIP Units exercised	—		—		—		—
Common Shares Outstanding (6/30/2018, 6/30/2017, 6/30/2018, and 6/30/2017, respectively)	30,149,880		32,112,697		30,149,880		32,112,697