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Stockholders' Equity of the Company
6 Months Ended
Jun. 30, 2011
Stockholders' Equity of the Company [Abstract]  
Stockholders' Equity of the Company
 
7.   Stockholders’ Equity of the Company
 
Issuance of Common Stock
 
In April 2011, the Company completed an underwritten public offering of 6,037,500 shares of its common stock. The net offering proceeds, after deducting underwriting discounts and commissions and offering expenses, were approximately $221.0 million. We have used or, intend to use a portion of the net proceeds from the offering to fund acquisitions and for general corporate purposes.