Income Taxes - Effective Income Tax Rate Reconciliation (Detail)	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
U.S. statutory rate	21.00%	21.00%	35.00%
Effect of foreign operations	142.90%	141.20%	17.40%
State income taxes, net of Federal income tax	5.80%	(18.90%)	0.00%
Change in enacted tax laws	0.00%	0.00%	(23.60%)
Valuation allowance adjustment with tax law change	0.00%	0.00%	23.60%
Rate differential on U.S. loss	0.00%	0.00%	(4.10%)
Gains on asset sales, net	0.00%	0.00%	(2.20%)
Valuation allowance on current year operations	41.80%	55.20%	(14.90%)
Valuation allowance against previously benefited deferred tax assets	0.00%	0.00%	0.10%
Release valuation allowance against previously unbenefited deferred tax assets	(24.50%)	0.00%	0.00%
Noncontrolling interests in Midstream	(16.00%)	(15.90%)	0.80%
Intraperiod allocation	33.70%	(37.30%)	0.00%
Equity and executive compensation	2.20%	7.40%	(0.30%)
Other	1.20%	(0.30%)	0.00%
Total	208.10%	152.40%	31.80%

Effective income tax rate reconciliation equity and executive compensation.

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Effective income tax rate reconciliation intraperiod tax allocation rate.

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Effective income tax rate reconciliation rate differential on US loss percent.

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Effective income tax rate reconciliation release valuation allowance against previously unbenefited deferred tax assets.

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Effective income tax rate reconciliation valuation allowance adjust with tax law change, percent.

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Effective income tax rate reconciliation valuation allowance against previously benefitted deferred tax assets, percent.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.

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Percentage of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operations, attributable to disposition of asset. Includes, but is not limited to, intra-entity transfer of asset other than inventory.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to statutory income tax expense (benefit) outside of the country of domicile.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to noncontrolling interest income (loss) exempt from income taxes.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).

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