Stockholders' Equity / Partners' Capital (Tables)

6 Months Ended

Jun. 30, 2017

Stockholders' Equity Note [Abstract]

Summary of Equity Program activity

The following table presents activity under the Company’s ATM Equity Program during the three and six months ended June 30, 2017. There was no activity under the Company’s ATM Equity Program during the three and six months ended June 30, 2016:

	Three Months Ended   June 30, 2017		Six Months Ended   June 30, 2017
Total net proceeds	$	124,745	$	187,403
Commissions paid to sales agents	$	1,573	$	2,354
Weighted average price per share	$	47.69	$	48.34
Shares of common stock sold	2,648,735		3,925,456