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Long-Term Debt (Tables) | 12 Months Ended
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Dec. 31, 2014
Debt Disclosure [Abstract] |
Schedule of Carrying Values and Estimated Fair Values of Debt Instruments | The fair values and carrying values of our debt instruments are detailed as follows:
| December 31, 2014 |  | December 31, 2013
| Fair Value |  | Carrying Value |  | Fair Value |  | Carrying Value
3.85% senior notes, payable January 31, 2023; interest payable semiannually | $ | 603,180 |  |  | 600,000 |  |  | 569,400 |  |  | 600,000 |
6.125% notes, payable January 15, 2016; interest payable semiannually | 677,833 |  |  | 645,555 |  |  | 983,700 |  |  | 900,000 |
Commercial paper | 301,600 |  |  | 301,600 |  |  | — |  |  | — |
Five-year senior secured credit facility, due September 25, 2018 | 195,665 |  |  | 195,665 |  |  | 364,005 |  |  | 364,005 |
Securitization facility | 500,000 |  |  | 500,000 |  |  | 300,000 |  |  | 300,000 |
Capital leases and other | 10,620 |  |  | 10,620 |  |  | 96,003 |  |  | 96,003 |
Total debt | 2,288,898 |  |  | 2,253,440 |  |  | 2,313,108 |  |  | 2,260,008 |
Less current portion of long term debt and commercial paper | 851,305 |  |  | 851,305 |  |  | 127,218 |  |  | 127,218 |
Long-term debt, less current portion | $ | 1,437,593 |  |  | 1,402,135 |  |  | 2,185,890 |  |  | 2,132,790 |
Schedule of Maturities of Long-term Debt | The aggregate maturities of long-term debt as of December 31, 2014 are as follows:
2015 | $ | 810,477 |
2016 | 646,675 |
2017 | 1,067 |
2018 | 191,792 |
2019 | 786 |
Thereafter | 602,643 |
| $ | 2,253,440 |

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- Definition Tabular disclosure of information pertaining to carrying amount and estimated fair value of short-term and long-term debt instruments or arrangements, including but not limited to, identification of terms, features, and collateral requirements. + References No definition available. + Details
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- Definition Tabular disclosure of the combined aggregate amount of maturities and sinking fund requirements for all long-term borrowings for each of the five years following the date of the latest balance sheet date presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
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