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BALANCE SHEET DETAILS - Summary of Components of Prepaid Expense and Other Current Assets (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Prepaid expenses and other current assets:
Value-added tax	$ 4,184us-gaap_PrepaidTaxes	$ 2,134us-gaap_PrepaidTaxes
Other current assets	5,583us-gaap_OtherAssetsCurrent	3,133us-gaap_OtherAssetsCurrent
Prepaid expenses and other current assets	$ 9,767	$ 5,267

- Definition

Amount of asset related to consideration paid in advance for income and other taxes that provide economic benefits within a future period of one year or the normal operating cycle, if longer.

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