Special Charges	6 Months Ended
Jun. 30, 2012
Restructuring and Related Activities [Abstract]
Special Charges	Special Charges Secondary Offering Costs On January 25, 2012, certain stockholders of the Company, including affiliates of Oaktree Capital Management and Indigo Partners and certain members of the Company's executive team, sold an aggregate of 12,650,000 shares of common stock in an underwritten public offering (the secondary offering). The Company incurred a total of $1.3 million in costs between 2011 and 2012 related to the January 2012 secondary offering, of which $0.5 million were incurred during the six months ended June 30, 2012, offset by reimbursements from certain selling shareholders of $0.5 million in accordance with the Fourth Amendment to the Second Amended and Restated Investor Rights Agreement. The Company did not receive any proceeds from the sale of shares in the secondary offering. Initial Public Offering Costs In June 2011, the Company issued and sold 15,600,000 shares of common stock in its initial public offering (IPO). The Company incurred contract termination costs and fees of $2.3 million in connection with the IPO during the six months ended June 30, 2011, which included $1.8 million paid to Indigo Partners, LLC to terminate its professional services agreement with the Company and $0.5 million paid to three individual, unaffiliated holders of the Company’s subordinated notes.

Special Charges

6 Months Ended

Jun. 30, 2012

Restructuring and Related Activities [Abstract]

Secondary Offering Costs

On January 25, 2012, certain stockholders of the Company, including affiliates of Oaktree Capital Management and Indigo Partners and certain members of the Company's executive team, sold an aggregate of 12,650,000 shares of common stock in an underwritten public offering (the secondary offering). The Company incurred a total of $1.3 million in costs between 2011 and 2012 related to the January 2012 secondary offering, of which $0.5 million were incurred during the six months ended June 30, 2012, offset by reimbursements from certain selling shareholders of $0.5 million in accordance with the Fourth Amendment to the Second Amended and Restated Investor Rights Agreement. The Company did not receive any proceeds from the sale of shares in the secondary offering.

Initial Public Offering Costs

In June 2011, the Company issued and sold 15,600,000 shares of common stock in its initial public offering (IPO). The Company incurred contract termination costs and fees of $2.3 million in connection with the IPO during the six months ended June 30, 2011, which included $1.8 million paid to Indigo Partners, LLC to terminate its professional services agreement with the Company and $0.5 million paid to three individual, unaffiliated holders of the Company’s subordinated notes.