| Six Months Ended | |||||||||||||||||||||||
| June 30, | Year Ended December 31, | ||||||||||||||||||||||
| 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | ||||||||||||||||||
| Earnings: | |||||||||||||||||||||||
| Income (loss) from continuing operations before income taxes | $ | (64,292 | ) | $ | (173,291 | ) | $ | (221,070 | ) | $ | (108,178 | ) | $ | (216,750 | ) | $ | 149,225 | ||||||
| Fixed charges | 43,268 | 66,616 | 62,002 | 60,003 | 52,539 | 33,772 | |||||||||||||||||
| Capitalized interest | (83 | ) | (803 | ) | (1,983 | ) | (1,384 | ) | (2,318 | ) | (2,987 | ) | |||||||||||
| Preferred stock dividend requirements | (5,304 | ) | (2,793 | ) | — | — | — | — | |||||||||||||||
| $ | (26,411 | ) | $ | (110,271 | ) | $ | (161,051 | ) | $ | (49,559 | ) | $ | (166,529 | ) | $ | 180,010 | |||||||
| Fixed charges: | |||||||||||||||||||||||
| Interest expense | $ | 36,287 | $ | 59,339 | $ | 56,216 | $ | 53,679 | $ | 44,231 | $ | 24,627 | |||||||||||
| Capitalized interest | 83 | 803 | 1,983 | 1,384 | 2,318 | 2,987 | |||||||||||||||||
| Rent factor | 1,594 | 3,681 | 3,803 | 4,940 | 5,990 | 6,158 | |||||||||||||||||
| Preferred stock dividend requirements | 5,304 | 2,793 | — | — | — | — | |||||||||||||||||
| $ | 43,268 | $ | 66,616 | $ | 62,002 | $ | 60,003 | $ | 52,539 | $ | 33,772 | ||||||||||||
Ratio of earnings to fixed charges and preferred stock dividends 1 | — | — | — | — | — | 5.3x | |||||||||||||||||
