v3.26.1
Variable Interest Entities (Details)
$ in Thousands
1 Months Ended 3 Months Ended 12 Months Ended
Dec. 24, 2025
USD ($)
Jan. 01, 2025
USD ($)
Nov. 21, 2024
USD ($)
Jul. 31, 2025
USD ($)
Mar. 31, 2026
USD ($)
solar_project
tax_equity_partnership
Mar. 31, 2025
USD ($)
Dec. 31, 2025
USD ($)
tax_equity_partnership
solar_project
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Mar. 11, 2025
USD ($)
Variable Interest Entity [Line Items]                    
Number of tax equity partnerships | tax_equity_partnership         8   9      
Assets         $ 3,060,772   $ 3,078,520 $ 3,245,045    
Liabilities         1,956,218   1,942,620 1,903,976    
(Gain) loss on deconsolidation, net             $ 0 (5,622) $ 0  
Number of solar projects | solar_project             2      
Preferred return amount         $ 4,700   $ 4,700      
Aurora                    
Variable Interest Entity [Line Items]                    
Equity method ownership percentage         49.00%   49.00%      
Number of solar projects | solar_project         16   16      
OYA                    
Variable Interest Entity [Line Items]                    
Equity method ownership percentage       30.00% 50.00%   50.00%      
Illinois Winds LLC | GREC II | Related Party                    
Variable Interest Entity [Line Items]                    
(Gain) loss on deconsolidation, net               12,700    
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Illinois Winds LLC                    
Variable Interest Entity [Line Items]                    
Reimbursement of construction costs     $ 35,900              
Construction loan receivable     $ 40,100       $ 1,100      
Construction loan receivable, amount received             39,000      
Development fee payable             9,000 9,000    
GDEV I                    
Variable Interest Entity [Line Items]                    
Maximum exposure to loss         $ 2,500   2,100      
Payments for advance to affiliate           $ 7,400        
GDEV II                    
Variable Interest Entity [Line Items]                    
Maximum exposure to loss         $ 3,000   $ 3,200      
OYA | Guarantee of Tax Credit Recapture                    
Variable Interest Entity [Line Items]                    
Guarantor obligations                   $ 1,500
Reporting entity involvement, decrease each year, amount                   $ 500
Cider Solar Holdings LLC                    
Variable Interest Entity [Line Items]                    
Under construction costs of solar project $ 440,000                  
Greenbacker Capital Management LLC | GDEV Management Holdings LLC                    
Variable Interest Entity [Line Items]                    
Ownership percentage   75.00%                
Related Party of GCM | GDEV Management Holdings LLC                    
Variable Interest Entity [Line Items]                    
Ownership percentage   25.00%                
GDEV Management Holdings LLC | Greenbacker Capital Management LLC                    
Variable Interest Entity [Line Items]                    
Interest rate   6.00%                
GDEV Management Holdings LLC | Greenbacker Capital Management LLC                    
Variable Interest Entity [Line Items]                    
Maximum borrowing capacity   $ 4,000                
GDEV GP | GDEV I                    
Variable Interest Entity [Line Items]                    
Ownership percentage held by noncontrolling owners         2.00%   2.00%      
GDEV GP II | GDEV II                    
Variable Interest Entity [Line Items]                    
Ownership percentage held by noncontrolling owners         1.96%   1.96%      
GDEV OYA Lender                    
Variable Interest Entity [Line Items]                    
Distribution received       $ 3,000            
Variable Interest Entity, Primary Beneficiary                    
Variable Interest Entity [Line Items]                    
Assets         $ 1,300,000   $ 1,300,000 1,800,000    
Liabilities         209,000   213,800 $ 288,000    
Variable Interest Entity, Primary Beneficiary | GDEV Management Holdings LLC | GDEV Management Holdings LLC                    
Variable Interest Entity [Line Items]                    
Assets         100   800      
Liabilities         $ 900   $ 2,100