Balance Sheet Components - Schedule of Account Payables and Other Liabilities (Parenthetical) (Details) - USD ($) $ in Millions	Sep. 21, 2016	Aug. 31, 2016	Nov. 30, 2015
Schedule Of Account Payables And Other Liabilities [Line Items]
Accounts payable to related parties		$ 0.2	$ 0.2
SunPower | Macy's Maryland Project
Schedule Of Account Payables And Other Liabilities [Line Items]
Related party transaction, due to related party		5.6
SunPower | Macy's Maryland Acquisition
Schedule Of Account Payables And Other Liabilities [Line Items]
Related party transaction, due to related party		8.3
SunPower | Kern Phase 1(a)
Schedule Of Account Payables And Other Liabilities [Line Items]
Purchase price paid by tax equity investors		$ 3.4
SunPower | Subsequent Event | Macy's Maryland Project
Schedule Of Account Payables And Other Liabilities [Line Items]
Related party transaction, payable in acquiring business on certain construction milestones	$ 5.6
SunPower | Subsequent Event | Macy's Maryland Acquisition
Schedule Of Account Payables And Other Liabilities [Line Items]
Purchase price paid by tax equity investors	3.3
Related party transaction, payable in acquiring business on certain construction milestones	$ 5.6