Shareholders' Equity - Summary of Partnership Shares Outstanding (Details) - shares	Aug. 31, 2015	Dec. 28, 2014
Class Of Stock [Line Items]
Partnership shares, outstanding	71,002,679
Class A shares
Class Of Stock [Line Items]
Partnership shares, outstanding	20,002,679	0
Class A shares | Initial Public Offering
Class Of Stock [Line Items]
Partnership shares, outstanding	20,002,679
Class B shares
Class Of Stock [Line Items]
Partnership shares, outstanding	51,000,000	0
Class B shares | First Solar
Class Of Stock [Line Items]
Partnership shares, outstanding	22,116,925
Class B shares | SunPower
Class Of Stock [Line Items]
Partnership shares, outstanding	28,883,075