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Commitments and Contingencies - Schedule of Future Minimum Obligations for Purchases of Inventory, Services, and Other (Detail) $ in Thousands	Dec. 31, 2017 USD ($)
Commitments and Contingencies Disclosure [Abstract]
2018	$ 307,889
2019	35,207
2020	13,444
2021	2,305
2022	0
Total future minimum obligations for purchases of inventory, services, and other	$ 358,845

X

- Definition

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

+ References

No definition available.

+ Details

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X

- Definition

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.

+ References

No definition available.

+ Details

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X

- Definition

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.

+ References

No definition available.

+ Details

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X

- Definition

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.

+ References

No definition available.

+ Details

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X

- Definition

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.

+ References

No definition available.

+ Details

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X

- Definition

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.

+ References

No definition available.

+ Details

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- References

No definition available.

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