Exhibit 12.1
STATEMENT RE COMPUTATION OF EARNINGS TO FIXED CHARGES
(in thousands) | Nine Months Ended | |||||||||||||||||||||||
September 30, | Year Ended December 31, | |||||||||||||||||||||||
2011 | 2010 | 2009 | 2008 | 2007 | 2006 | |||||||||||||||||||
Ratio of Earnings to Fixed Charges | ||||||||||||||||||||||||
Earnings: | ||||||||||||||||||||||||
Income before income taxes | $ | 128,402 | $ | 79,252 | $ | 7,769 | $ | 56,564 | $ | 47,610 | $ | 28,119 | ||||||||||||
Add: | ||||||||||||||||||||||||
Amortization of capitalized interest | 37 | 36 | 35 | 32 | 19 | 13 | ||||||||||||||||||
Fixed charges, net of capitalized interest | 1,010 | 1,749 | 1,966 | 2,151 | 2,060 | 1,857 | ||||||||||||||||||
Income before income taxes and fixed charges, net | $ | 129,449 | $ | 81,037 | $ | 9,770 | $ | 58,747 | $ | 49,689 | $ | 29,989 | ||||||||||||
Fixed Charges: | ||||||||||||||||||||||||
Total interest expense | $ | 848 | $ | 1,508 | $ | 1,695 | $ | 1,669 | $ | 1,630 | $ | 1,629 | ||||||||||||
Capitalized interest | 33 | 18 | 75 | 390 | 186 | 149 | ||||||||||||||||||
Interest factor in rents | 162 | 241 | 271 | 482 | 430 | 228 | ||||||||||||||||||
Total fixed charges | $ | 1,043 | $ | 1,767 | $ | 2,041 | $ | 2,541 | $ | 2,246 | $ | 2,006 | ||||||||||||
Ratio of earnings to fixed charges | 124.1 | x | 45.9 | x | 4.8 | x | 23.1 | x | 22.1 | x | 15.0 | x |