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Income Taxes - Components of the Provision for Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Current taxes:
United States	$ 15us-gaap_CurrentFederalTaxExpenseBenefit	$ 57us-gaap_CurrentFederalTaxExpenseBenefit	$ 32us-gaap_CurrentFederalTaxExpenseBenefit
International	1,137us-gaap_CurrentForeignTaxExpenseBenefit	1,577us-gaap_CurrentForeignTaxExpenseBenefit	1,397us-gaap_CurrentForeignTaxExpenseBenefit
Total current tax expense	1,152us-gaap_CurrentIncomeTaxExpenseBenefit	1,634us-gaap_CurrentIncomeTaxExpenseBenefit	1,429us-gaap_CurrentIncomeTaxExpenseBenefit
Deferred taxes:
United States	5	5	5
International	273	32	(255)
Total deferred tax expense (benefit)	278us-gaap_DeferredIncomeTaxExpenseBenefit	37us-gaap_DeferredIncomeTaxExpenseBenefit	(250)us-gaap_DeferredIncomeTaxExpenseBenefit
Income tax expense	$ 1,430us-gaap_IncomeTaxExpenseBenefit	$ 1,671us-gaap_IncomeTaxExpenseBenefit	$ 1,179us-gaap_IncomeTaxExpenseBenefit

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

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

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

Amount of deferred foreign income tax expense (benefit) pertaining to income (loss) from continuing operations.

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