v3.26.1
Earnings Per Share - Schedule of Computation of Basic and Diluted Earnings Per Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Basic and diluted:        
Net income (loss) attributable to Greenbacker Renewable Energy Company LLC $ 11,320 $ (33,668) $ (16,006) $ (49,254)
Weighted average common shares outstanding used in computing net loss per share—basic (in shares) 199,271 199,192 199,328 199,262
Adjustments:        
Share-based compensation awards (in shares) 1,729 0 0 0
Weighted average common shares outstanding used in computing net loss per share—diluted (in shares) 201,000 199,192 199,328 199,262
Net income (loss) per share—basic (in dollars per share) $ 0.06 $ (0.17) $ (0.08) $ (0.25)
Net income (loss) per share—diluted (in dollars per share) $ 0.06 $ (0.17) $ (0.08) $ (0.25)