XML 50 R40.htm IDEA: XBRL DOCUMENT v3.22.2.2
Fair Value Measurements - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2022
Aug. 26, 2022
Jul. 01, 2022
Sep. 30, 2022
Sep. 30, 2022
Luminant Power Agreement          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Amount received from Power Agreement   $ 5.1   $ 5.1  
Proceeds from power sales       $ 1.7 $ 1.7
Level 3          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Percentage of discount rate utilized 7.39%   7.19%    
Change in fair value         $ 0.3
Level 3 | Luminant Power Agreement          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Derivative term of contract     5 years