Exhibit 12.1
Computation of Ratio of Earnings to Fixed Charges(1)
| (in thousands) | Nine Months Ended September 30, 2013 | Year Ended December 31, 2012 | Year Ended December 31, 2011 | Period from August 4, 2010 (inception) to December 31, 2010 | Period from August 4, 2010 (inception) to September 30, 2013 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Net loss | $ | (29,878 | ) | $ | (31,984 | ) | $ | (13,683 | ) | $ | (784 | ) | $ | (76,329 | ) | |
Ratio of earnings to fixed charges(1) | N/A | N/A | N/A | N/A | N/A | |||||||||||
Coverage deficiency | $ | (29,878 | ) | $ | (31,984 | ) | $ | (13,683 | ) | $ | (784 | ) | $ | (76,329 | ) | |
