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Business Combinations - Purchase Allocation for Acquired Assets and Liabilities (Details) - I P O First Solar Project Entities
$ in Thousands
Jun. 24, 2015
USD ($)
Business Acquisition [Line Items]  
Property and equipment $ 56,497
Asset retirement obligation (2,130)
Total purchase price 408,820
Solar Gen Two Project Entity  
Business Acquisition [Line Items]  
Equity method investment 216,483
North Star  
Business Acquisition [Line Items]  
Equity method investment 103,849
Lost Hills Blackwell  
Business Acquisition [Line Items]  
Equity method investment $ 34,121