XML 39 R16.htm IDEA: XBRL DOCUMENT

Forward Equity and Equity Distribution Program	12 Months Ended
Forward Equity and Equity Distribution Program	Dec. 31, 2017
Forward Equity Sale Agreements
Forward Equity and Equity Distribution Program	Forward Equity and Equity Distribution Program The Company has equity distribution and forward equity agreements with several major securities firms under which it may, from time to time, issue and sell shares of its common stock (immediately or on a forward basis) having an aggregate sales price of up to $500.0 million (the “equity distribution program”). As of December 31, 2017, no sales have occurred under the equity distribution program. In 2016, the Company entered into an agreement to sell approximately 2.9 million shares of the Company’s common stock at a price of $167.25 per share on a forward basis and issued 2.7 million shares to settle a portion of this forward equity sale and received proceeds of $440.3 million, and net settled 0.2 million shares for cash at an average share price of $144.59. As of December 31, 2016, no shares remained outstanding under this agreement.