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Income Taxes (Details) - USD ($)
$ / shares in Units, $ in Millions
 10 Months Ended 12 Months Ended
Mar. 05, 2020
Dec. 31, 2020
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Components of Benefit From (Provision For) Income Taxes:          
Maximum percent of qualifying income for publicly traded partnerships to be treated as corporations     90.00%    
Texas Margin Tax [1]     $ (41.9) $ (32.1) $ (44.2)
Other     (0.5) 1.1 (1.4)
Benefit from (provision for) income taxes     $ (70.0) $ 124.3 (45.6)
Liquidity Option liability $ 511.9        
Series A cumulative convertible preferred units (in dollars per unit)   $ 1,000 $ 1,000 $ 1,000  
OTA Holdings, Inc. [Member]          
Components of Benefit From (Provision For) Income Taxes:          
Benefit from (provision for) income taxes $ 72.2 $ 83.1 $ (27.6) $ 155.3 $ 0.0
[1] Although the Texas Margin Tax is not considered a state income tax, it has the characteristics of an income tax since it is determined by applying a tax rate to a base that considers our Texas-sourced revenues and expenses.