Exhibit 12.1
Statement Regarding Computation of Ratio of Earnings to Fixed Charges
The following table sets forth our ratio of earnings to fixed charges for the three months ended March 31, 2018 and 2017 and for the years ended December 31, 2017, 2016, 2015, 2014 and 2013.
Three Months Ended March 31, | Year Ended December 31, | |||||||||||||||||||||||||||
(Dollars in thousands) | 2018 | 2017 | 2017 | 2016 | 2015 | 2014 | 2013 | |||||||||||||||||||||
Earnings | $ | 32,296 | $ | 17,161 | $ | 117,806 | $ | 93,118 | $ | 70,767 | $ | 33,530 | $ | 19,679 | ||||||||||||||
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Fixed charges | $ | 13,587 | $ | 7,888 | $ | 46,469 | $ | 27,371 | $ | 20,693 | $ | 11,053 | $ | 1,183 | ||||||||||||||
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Ratio of earnings to fixed charges | 2.38 | 2.18 | 2.54 | 3.40 | 3.42 | 3.03 | 16.63 | |||||||||||||||||||||
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Earnings (Loss): | ||||||||||||||||||||||||||||
Income before income taxes | $ | 23,107 | $ | 12,051 | $ | 84,164 | $ | 73,149 | $ | 60,305 | $ | 30,959 | $ | 18,073 | ||||||||||||||
Add: fixed charges | 13,587 | 7,888 | 46,469 | 27,371 | 20,693 | 11,053 | 1,183 | |||||||||||||||||||||
Less: capitalized interest | (13,357 | ) | (7,734 | ) | (45,725 | ) | (26,904 | ) | (20,313 | ) | (10,848 | ) | (1,098 | ) | ||||||||||||||
Add: amortization of previously capitalized interest | 8,959 | 4,956 | 32,898 | 19,502 | 10,082 | 2,366 | 1,521 | |||||||||||||||||||||
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Total earnings | $ | 32,296 | $ | 17,161 | $ | 117,806 | $ | 93,118 | $ | 70,767 | $ | 33,530 | $ | 19,679 | ||||||||||||||
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Fixed Charges: | ||||||||||||||||||||||||||||
Interest expense(1) | $ | 2 | $ | 1 | $ | (3 | ) | $ | 5 | $ | 10 | $ | 26 | $ | — | |||||||||||||
Interest component of rent expense | 228 | 153 | 747 | 462 | 370 | 179 | 85 | |||||||||||||||||||||
Capitalized interest | 13,357 | 7,734 | 45,725 | 26,904 | 20,313 | 10,848 | 1,098 | |||||||||||||||||||||
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Total fixed charges | $ | 13,587 | $ | 7,888 | $ | 46,469 | $ | 27,371 | $ | 20,693 | $ | 11,053 | $ | 1,183 | ||||||||||||||
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(1) | Excludes capitalized interest. |