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Consolidated Statements of Equity (Parentheticals)	Dec. 28, 2014
Warrant (Under the CSO2014) [Member]
Interest rate	4.75%

X

- Definition

Class of Warrant or Right, Warrant Interest Rate

+ References

No definition available.

+ Details

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Namespace Prefix:	spwr_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

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- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: