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At-the-Market (ATM) Program	3 Months Ended
At-the-Market (ATM) Program	Mar. 31, 2016
At-the-Market (ATM) Program
At-the-Market (ATM) Program	19.At-the-Market (ATM) Program In September 2015, we established an “at-the-market” equity distribution program, or our ATM program, pursuant to which we can offer and sell up to 12,000,000 shares of common stock to, or through a consortium of banks acting as our sales agents by means of ordinary brokers’ transactions on the NYSE or otherwise at market prices prevailing at the time of sale, at prices related to prevailing market prices or at negotiated prices. During the first three months of 2016, we issued 500,000 shares and raised approximately $30.5 million under the ATM program.