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Restructuring (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Summary of activity for liabilities [Roll Forward] |  |  |
Impairment of idled equipment | $ 5,569 | $ 1,147 | $ 0
Selling, General and Administrative Expenses [Member] |  |  |
Summary of activity for liabilities [Roll Forward] |  |  |
Impairment of idled equipment | 3,700 |  |
EBOL Restructuring Plan [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Incurred in 2016 | 9,686 |  |
Inception to Date Costs Incurred | 9,686 |  |
Total Expected to be Incurred | 9,727 |  |
Termination Benefits [Member] |  |  |
Summary of activity for liabilities [Roll Forward] |  |  |
Balance, beginning of period | 0 |  |
Expenses incurred | 5,246 |  |
Amount paid | (889) |  |
Other adjustments | 0 |  |
Balance, end of period | 4,357 | $ 0 |
Termination Benefits [Member] | EBOL Restructuring Plan [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Incurred in 2016 | 5,246 |  |
Inception to Date Costs Incurred | 5,246 |  |
Total Expected to be Incurred | 5,287 |  |
Abandonment of Equipment [Member] | EBOL Restructuring Plan [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Incurred in 2016 | 3,749 |  |
Inception to Date Costs Incurred | 3,749 |  |
Total Expected to be Incurred | 3,749 |  |
Other Costs [Member] | EBOL Restructuring Plan [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Incurred in 2016 | 691 |  |
Inception to Date Costs Incurred | 691 |  |
Total Expected to be Incurred | 691 |  |
Retention Payments [Member] |  |  |
Summary of activity for liabilities [Roll Forward] |  |  |
Amount paid | $ 2,000 |  |

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