Loss before Income Tax Provision and Income Tax Expense (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Loss before provision for income taxes
Domestic	$ (100,860)	$ (192,998)	$ (182,974)
Foreign	(61,112)	(80,721)	(37,898)
Total	(161,972)	(273,719)	(220,872)
Provision for income taxes, Current:
Federal	0us-gaap_CurrentFederalTaxExpenseBenefit	0us-gaap_CurrentFederalTaxExpenseBenefit	0us-gaap_CurrentFederalTaxExpenseBenefit
State	237	216
Foreign	393us-gaap_CurrentForeignTaxExpenseBenefit	223us-gaap_CurrentForeignTaxExpenseBenefit
Total	$ 630us-gaap_CurrentIncomeTaxExpenseBenefit	$ 439us-gaap_CurrentIncomeTaxExpenseBenefit

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section S99

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations.

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The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations.

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The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile.

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