Stockholders' Equity of the Company

3 Months Ended

Mar. 31, 2014

Equity [Abstract]

Stockholders' Equity of the Company

Stockholders’ Equity of the Company

At-The-Market Stock Offering Program

Under our at-the-market stock offering program, which commenced in July 2011, we may offer and sell shares of our common stock having an aggregate gross sales price of up to $200.0 million from time to time in “at-the-market” offerings. Since commencement of the program, we have sold 2,183,261 shares of common stock having an aggregate gross sales price of $105.3 million. As of March 31, 2014, shares of common stock having an aggregate gross sales price of up to $94.7 million remain available to be sold under this program. Actual future sales will depend upon a variety of factors, including but not limited to market conditions, the trading price of the Company’s common stock and our capital needs. We have no obligation to sell the remaining shares available for sale under this program. There were no sales of our common stock under our at-the-market offering program for the three months ended March 31, 2014.