Variable Interest Entities (Details) (Variable Interest Entities Which We Have Determined That We Are the Primary Beneficiary [Member], IM Flash Singapore LLP [Member])	Sep. 01, 2011
Variable Interest Entities Which We Have Determined That We Are the Primary Beneficiary [Member] | IM Flash Singapore LLP [Member]
Variable Interest Entity [Line Items]
Variable interest entity, ownership percentage (in hundredths)	86.00%