Subsequent Events	6 Months Ended
Jun. 30, 2017
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events In July 2017, the Trust completed a follow-on public offering of 21,500,000 common shares, including 1,500,000 common shares issued upon partial exercise of the underwriters’ option to purchase additional shares, resulting in net proceeds to it of approximately $420.3 million. The Trust contributed the net proceeds of this offering to the Operating Partnership in exchange for 21,500,000 OP Units, and the Operating Partnership used the net proceeds of the public offering to repay borrowings under its unsecured revolving credit facility and for general corporate purposes, including working capital and funding acquisitions.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI http://asc.fasb.org/topic&trid=2122774

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