Schedule of Future Minimum Obligations for Purchases of Inventory, Services, and Other (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014
Commitments and Contingencies Disclosure [Line Items]
Future minimum obligations for purchases of inventory, services, and other - 2015	$ 363,013
Future minimum obligations for purchases of inventory, services, and other - 2016	21,116
Future minimum obligations for purchases of inventory, services, and other - 2017	2,573
Future minimum obligations for purchases of inventory, services, and other - 2018	708
Future minimum obligations for purchases of inventory, services, and other - 2019	0
Total future minimum obligations for purchases of inventory, services, and other	$ 387,410

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For purchases of inventory, other assets, and services containing provisions for future minimum obligations, the total required obligations due.

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For purchases of inventory, other assets, and services containing provisions for future minimum obligations, required obligations due within one year of the balance sheet date.

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For purchases of inventory, other assets, and services containing provisions for future minimum obligations, required obligations due within the fifth year of the balance sheet date.

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For purchases of inventory, other assets, and services containing provisions for future minimum obligations, required obligations due within the fourth year of the balance sheet date.

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For purchases of inventory, other assets and services containing provisions for future minimum obligations, required obligations due within the third year of the balance sheet date.

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For purchases of inventory, other assets. and services containing provisions for future minimum obligations, required obligations due within the second year of the balance sheet date.

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