Quarterly report pursuant to Section 13 or 15(d)

Other Investments- Summary Financial Information for DCIP (Detail)

v3.22.2.2
Other Investments- Summary Financial Information for DCIP (Detail) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2022
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Dec. 31, 2020
Schedule Of Equity Method Investments [Line Items]                    
Total revenue $ 650.4     $ 434.8     $ 1,855.0 $ 843.8    
Net income (loss) (23.9) $ (72.8) $ (72.5) (77.6) $ (142.2) $ (208.9) (169.2) (428.7)    
Current assets 800.9           800.9   $ 874.4  
Current liabilities 628.4           628.4   769.1  
Noncurrent liabilities 4,016.7           4,016.7   4,127.0  
Members' equity $ 205.4 $ 218.7 $ 299.4 $ 314.8 $ 397.7 $ 523.8 $ 205.4 $ 314.8 $ 334.5 $ 798.9