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Industry Segments (Details 2) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015
Corporate Overhead Footnote |  |  |  |
General and administrative expense | $ 8,748 | $ 13,440 | $ 26,698 | $ 33,978
Depreciation and amortization | 101 | 230 | 328 | 743
Interest expense | 4,699 | 4,011 | 16,347 | 13,423
Other general corporate (income) expense, net | (882) | 585 | 1,856 | 1,959
Total | $ 12,666 | $ 18,266 | $ 45,229 | $ 50,103

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