Years ended December 31, | ||||||||||||||||||||
2013 | 2014 | 2015 | 2016 | 2017 | ||||||||||||||||
Earnings: | ||||||||||||||||||||
Income from continuing operations before income taxes | $ | 112,279 | $ | 84,733 | $ | 210,998 | $ | 159,859 | $ | 286,832 | ||||||||||
Fixed charges: | ||||||||||||||||||||
Interest expense | 248,792 | 270,553 | 299,055 | 392,156 | 478,698 | |||||||||||||||
Amortization of capitalized interest | 4,858 | 5,536 | 6,277 | 6,840 | 8,121 | |||||||||||||||
Interest factor on operating leases | 33,811 | 31,617 | 30,464 | 42,181 | 47,374 | |||||||||||||||
Subtotal | $ | 287,461 | $ | 307,706 | $ | 335,796 | $ | 441,177 | $ | 534,193 | ||||||||||
Total earnings | $ | 399,740 | $ | 392,439 | $ | 546,794 | $ | 601,036 | $ | 821,025 | ||||||||||
Fixed charges: | ||||||||||||||||||||
Interest expense | 248,792 | 270,553 | 299,055 | 392,156 | 478,698 | |||||||||||||||
Capitalized interest | 10,608 | 19,004 | 10,943 | 13,338 | 22,625 | |||||||||||||||
Interest factor operating leases | 33,811 | 31,617 | 30,464 | 42,181 | 47,374 | |||||||||||||||
Total fixed charges | $ | 293,211 | $ | 321,174 | $ | 340,462 | $ | 447,675 | $ | 548,697 | ||||||||||
Ratio of earnings to fixed charges | 1.4 | x | 1.2 | x | 1.6 | x | 1.3 | x | 1.5 | x |