Recently Issued Accounting Pronouncements (Details) - USD ($) $ in Thousands |
Dec. 31, 2015 |
Dec. 31, 2014 |
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|---|---|---|---|---|---|
| Deferred Finance Costs, Net | $ 8,100 | $ 9,900 | |||
| Other current assets | 253,744 | 296,948 | |||
| Accrued liabilities | 391,659 | 489,983 | [1] | ||
| Presented as a Reduction to Long-term Debt | |||||
| Deferred Finance Costs, Net | $ 1,200 | 2,400 | |||
| Effect on financial statements for application of ASU 2015-17 [Member] | |||||
| Other current assets | (26,200) | ||||
| Accrued liabilities | (6,200) | ||||
| Other Liabilities, Current | (18,600) | ||||
| Other Assets, Miscellaneous, Noncurrent | $ 1,400 | ||||
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