| Nine Months Ended September 30, | Year Ended | |||||||||||||||||||||||
| 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | |||||||||||||||||||
| Earnings | ||||||||||||||||||||||||
| Pretax income from continuing operations before adjustment for income or loss from equity investees | $ | 139,147 | $ | 210,099 | $ | 164,590 | $ | 127,443 | $ | 52,257 | $ | 46,353 | ||||||||||||
| Fixed charges | 34,590 | 40,180 | 28,885 | 17,736 | 2,042 | 1,787 | ||||||||||||||||||
| $ | 173,737 | $ | 250,279 | $ | 193,475 | $ | 145,179 | $ | 54,299 | $ | 48,140 | |||||||||||||
| Less: | ||||||||||||||||||||||||
| Interest capitalized | $ | — | $ | — | $ | — | $ | — | $ | — | $ | — | ||||||||||||
| Non-controlling interest in pre-tax income (loss) of subsidiaries that have not incurred fixed charges | — | 113 | 132 | (2 | ) | 82 | — | |||||||||||||||||
| — | 113 | 132 | (2 | ) | 82 | — | ||||||||||||||||||
| Total Earnings | $ | 173,737 | $ | 250,166 | $ | 193,343 | $ | 145,181 | $ | 54,217 | $ | 48,140 | ||||||||||||
| Fixed Charges: | ||||||||||||||||||||||||
| Interest expensed and capitalized, and amortized premiums, discounts and capitalized expenses related to indebtedness | 34,590 | 40,180 | 28,885 | 17,736 | 2,042 | 1,787 | ||||||||||||||||||
Expense of the interest within rental expense(1) | — | — | — | — | — | — | ||||||||||||||||||
| Total Fixed Charges | $ | 34,590 | $ | 40,180 | $ | 28,885 | $ | 17,736 | $ | 2,042 | $ | 1,787 | ||||||||||||
| Ratio of Earnings to Fixed Charges | 5.02 | 6.23 | 6.69 | 8.19 | 26.55 | 26.94 | ||||||||||||||||||
