Annual report pursuant to Section 13 and 15(d)

Segment Information - Narrative (Details)

v3.22.0.1
Segment Information - Narrative (Details)
$ in Millions
2 Months Ended 4 Months Ended 12 Months Ended
Dec. 31, 2021
USD ($)
Oct. 19, 2021
USD ($)
Dec. 31, 2021
Segment
Jun. 30, 2021
USD ($)
Jun. 30, 2020
USD ($)
Jun. 30, 2019
USD ($)
Segment Reporting Information [Line Items]            
Number of reportable segments | Segment     2      
Total revenues $ 154.1 $ 168.0   $ 611.6 $ 478.2 $ 440.1
United States            
Segment Reporting Information [Line Items]            
Total revenues 86.7 100.0   306.3 215.5 198.3
France            
Segment Reporting Information [Line Items]            
Total revenues $ 34.4 $ 35.1   $ 158.8 $ 134.5 $ 128.0