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Long-Term Debt (Accounts Receivable Securitization) (Details) - Securitization facility - USD ($) | Dec. 10, 2015 | Sep. 11, 2014 | Dec. 19, 2012 | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | --- | --- | --- | ---
Line of Credit Facility [Line Items] |  |  |  |  |
Maturity period of debt |  |  | 3 years |  |
Securitization agreement, maximum borrowing capacity |  | $ 500,000,000 | $ 300,000,000 |  |
Payment of financing costs | $ 250,000 |  |  |  |
Basis spread on securitization agreement |  | 0.70% |  |  |
Commitment fee percentage on unused amount of each lender's commitment |  | 0.30% |  |  |
Carrying Value |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Securitization facility |  |  |  | $ 500,000,000 | $ 500,000,000

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- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility. + References No definition available. + Details
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- Definition Fair value portion of contractual arrangement with a lender under which borrowings can be made up to a specific amount at any point in time. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Line-of-Credit Arrangement -URI http://asc.fasb.org/extlink&oid=6517033 + Details
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