Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
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| Income Tax Disclosure [Line Items] | |||
| Depreciation and amortization | $ 139,795 | $ 156,194 | $ 145,121 |
| Total income tax expense (benefit) | 74,170 | 22,313 | $ 24,076 |
| Valuation Allowances and Reserves, Period Increase (Decrease) | 117,707 | 40,600 | |
| Liability for unrecognized tax benefits | 4,628 | 7,837 | |
| Accrued interest and penalties related to uncertain tax positions | 1,900 | 3,400 | |
| Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense | 800 | ||
| Unrecognized Tax Benefits, Income Tax Penalties Expense | $ 700 | ||
| Alaska Drilling Rigs [Member] | |||
| Income Tax Disclosure [Line Items] | |||
| Depreciation and amortization | $ 24,700 | ||
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- Definition Income Tax Disclosure [Line Items] No definition available.
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- Definition The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The amount of estimated penalties and interest accrued as of the balance sheet date arising from income tax examinations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of expense for penalties related to a tax position claimed or expected to be claimed in the tax return. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Total increases or decreases in allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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