Cost of Revenue

9 Months Ended

Sep. 30, 2011

Cost of Revenue [Abstract]

COST OF REVENUE

3. COST OF REVENUE

Substantially all of the Company’s operating costs and expenses are “cost of revenue” items. Operating costs that could be classified as general and administrative by the Company would include the Company’s corporate office costs at its Franklin, Tennessee office, which were $45.6 million and $36.8 million for the three months ended September 30, 2011 and 2010, respectively, and $135.1 million and $117.0 million for the nine months ended September 30, 2011 and 2010, respectively. Included in these amounts is stock-based compensation expense of $10.9 million and $9.5 million for the three months ended September 30, 2011 and 2010, respectively, and $31.6 million and $29.9 million for the nine months ended September 30, 2011 and 2010, respectively.