Common Shares of Beneficial Interest (Tables)

9 Months Ended

Sep. 30, 2017

Equity [Abstract]

Schedule of ATM Equity Program

The following shares were sold under the ATM equity offering programs during the three and nine months ended September 30, 2016 (in thousands, except per share amounts):

	Three Months Ended September 30,		Nine Months Ended September 30,
	2016		2016
Shares sold	188		3,465
Weighted average price per share	$	41.67	$	38.35
Gross proceeds	$	7,827	$	132,884