Post-effective amendment to a registration statement that is not immediately effective upon filing

Income Taxes - Schedule of Income Before Income Tax Domestic and Foreign Current and Deferred Portions of Income Tax Benefits (Details)

v3.22.0.1
Income Taxes - Schedule of Income Before Income Tax Domestic and Foreign Current and Deferred Portions of Income Tax Benefits (Details) - USD ($)
$ in Millions
 2 Months Ended 4 Months Ended 12 Months Ended
Dec. 31, 2021
Oct. 19, 2021
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2019
Segment Reporting Information [Line Items]          
Loss before benefit from income taxes $ (29.8) $ (111.3) $ (164.3) $ (124.6) $ (126.2)
Current:          
Federal 0.0        
State and local 0.8        
Foreign 3.8        
Total current provision 4.6 3.5 12.1 10.5 12.6
Deferred:          
Federal (5.4)        
State and local (1.2)        
Foreign (4.8)        
Total deferred benefit (11.4) (9.1) (18.0) (16.0) (16.8)
Total benefit from income taxes (6.8) (5.6) (5.9) (5.5) (4.2)
United Kingdom          
Segment Reporting Information [Line Items]          
Loss before benefit from income taxes   (41.2) (125.3) (118.2) (96.3)
Current:          
Total current provision   0.1 0.3 0.6 1.1
Deferred:          
Total deferred benefit   0.0 0.0 (0.4) (0.3)
United States          
Segment Reporting Information [Line Items]          
Loss before benefit from income taxes (26.8) (61.2) (53.8) (24.5) (42.0)
Current:          
Total current provision   1.4 2.4 (6.2) 1.9
Deferred:          
Total deferred benefit   (7.0) (15.5) 1.3 (7.2)
Foreign          
Segment Reporting Information [Line Items]          
Loss before benefit from income taxes $ (3.0)        
Other foreign          
Segment Reporting Information [Line Items]          
Loss before benefit from income taxes   (8.9) 14.8 18.1 12.1
Current:          
Total current provision   2.0 9.4 16.1 9.6
Deferred:          
Total deferred benefit   $ (2.1) $ (2.5) $ (16.9) $ (9.3)