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Segment Information - Items Not Allocated to Segments (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Segment Reporting Information [Line Items] |  |  |  |
General and administrative expense |  | $ (21,597) | $ (27,253) | $ (22,230)
Gain of sale of assets |  | 166,747 | 1,585 | 29,512
Interest expense |  | (19,985) | (34,066) | (30,286)
Loss on extinguishment of debt, net |  | (35,864) | 0 | 0
Other corporate non-operating income |  | 1,718 | 3,006 | 8,588
Income (loss) before taxes from continuing operations |  | 90,815 | 8,214 | 57,042
Items Not Allocated To Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
General and administrative expense |  | (18,274) | (24,802) | (21,229)
Share-based and long-term incentive compensation expense |  | (4,425) | (4,474) | (3,417)
Gain of sale of assets |  | 48,891 | 0 | 0
Interest expense |  | (19,985) | (34,066) | (30,286)
Loss on extinguishment of debt, net |  | (35,864) | 0 | 0
Other corporate non-operating income |  | 350 | 256 | 453
Income (loss) before taxes from continuing operations | [1] | $ (29,307) | $ (63,086) | $ (54,479)
[1] | Items not allocated to segments consist of: For the Year 2016 2015 2014 (In thousands)General and administrative expense$(18,274) $(24,802) $(21,229)Share-based and long-term incentive compensation expense(4,425) (4,474) (3,417)Gain on sale of assets48,891 — —Interest expense(19,985) (34,066) (30,286)Loss on extinguishment of debt, net(35,864) — —Other corporate non-operating income350 256 453 $(29,307) $(63,086) $(54,479)

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