Annual report pursuant to Section 13 and 15(d)

Solar Energy Systems, net (Details)

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Solar Energy Systems, net (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Property Subject to or Available for Operating Lease [Line Items]    
Property and equipment $ 143,850 $ 109,504
Less: Accumulated depreciation and amortization (87,142) (74,611)
Total property and equipment, net 56,708 34,893
Solar energy system equipment costs    
Property Subject to or Available for Operating Lease [Line Items]    
Property and equipment 4,510,677 3,823,853
Inverters    
Property Subject to or Available for Operating Lease [Line Items]    
Property and equipment 471,471 396,054
Solar energy systems    
Property Subject to or Available for Operating Lease [Line Items]    
Property and equipment 4,982,148 4,219,907
Less: Accumulated depreciation and amortization (692,218) (535,891)
Add: construction-in-progress 202,685 136,001
Total property and equipment, net $ 4,492,615 $ 3,820,017