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CONSOLIDATED CONDENSED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($)
Star Peak Energy Transition Corp [Member]
Class A common stock
Additional paid-in capital
Star Peak Energy Transition Corp [Member]
Class A common stock
Star Peak Energy Transition Corp [Member]
Common Class B
Star Peak Energy Transition Corp [Member]
Additional paid-in capital
Star Peak Energy Transition Corp [Member]
Deficit
Star Peak Energy Transition Corp [Member]
Additional paid-in capital
Deficit
Total
Balance, beginning of period at Dec. 31, 2018     $ 1,006 $ 23,994 $ (8,144) $ 16,856 $ 555,000 $ (210,596,000) $ (210,041,000)
Balance, beginning of period (in shares) at Dec. 31, 2018     10,062,500            
Increase (Decrease) in Stockholders' Equity [Roll Forward]                  
Net loss         (10,406) (10,406)   (59,414,000) (59,414,000)
Balance, end of period at Dec. 31, 2019     $ 1,006 23,994 (18,550) 6,450 3,339,000 (259,054,000) (255,661,000)
Balance, end of period (in shares) at Dec. 31, 2019     10,062,500            
Increase (Decrease) in Stockholders' Equity [Roll Forward]                  
Net loss     $ 0   (1,100) (1,100)   (17,471,000) (17,471,000)
Balance, end of period at Mar. 31, 2020     $ 1,006 23,994 (19,650) 5,350 3,816,000 (269,188,000) (264,867,000)
Balance, end of period (in shares) at Mar. 31, 2020     10,062,500            
Balance, beginning of period at Dec. 31, 2019     $ 1,006 23,994 (18,550) 6,450 3,339,000 (259,054,000) (255,661,000)
Balance, beginning of period (in shares) at Dec. 31, 2019     10,062,500            
Increase (Decrease) in Stockholders' Equity [Roll Forward]                  
Class A common stock subject to possible redemption $ 242,752,852 $ 2,428       242,755,280      
Class A common stock subject to possible redemption (in shares)   24,275,528              
Net loss     $ 112,600,000   (112,633,298) (112,633,298)   (156,124,000) (156,124,000)
Balance, end of period at Dec. 31, 2020   $ 1,408 $ 959 117,649,486 (112,651,848) 5,000,005 10,061,000 (407,841,000) (397,972,000)
Balance, end of period (in shares) at Dec. 31, 2020   14,082,976 9,589,626            
Increase (Decrease) in Stockholders' Equity [Roll Forward]                  
Class A common stock subject to possible redemption   $ 1,564   156,345,396   156,346,960      
Class A common stock subject to possible redemption (in shares)   15,634,696              
Net loss     $ 156,300,000   (156,346,958) (156,346,958)   (82,553,000) (82,553,000)
Balance, end of period at Mar. 31, 2021   $ 2,972 $ 959 $ 273,994,882 $ (268,998,806) $ 5,000,007 $ 14,726,000 $ (490,394,000) $ (475,609,000)
Balance, end of period (in shares) at Mar. 31, 2021   29,717,672 9,589,626