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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)