Quarterly report pursuant to Section 13 or 15(d)

Stock-based compensation - Stock option activity (Details)

v3.21.2
Stock-based compensation - Stock option activity (Details) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 2 Months Ended 3 Months Ended 4 Months Ended 6 Months Ended 12 Months Ended
Jun. 12, 2021
Jun. 11, 2021
Jun. 11, 2021
Jul. 31, 2021
Jul. 31, 2021
Apr. 30, 2021
Jul. 31, 2020
Apr. 30, 2020
Jun. 11, 2021
Jul. 31, 2021
Jul. 31, 2020
Jan. 31, 2021
Jan. 31, 2020
Weighted Average Remaining Contractual Term (Years)                          
Financial Designation, Predecessor and Successor [Fixed List] Successor   Predecessor Successor Successor Predecessor Predecessor Predecessor Predecessor Successor Predecessor Predecessor Predecessor
Stock Options                          
Shares                          
Granted (in shares)         2,198,000                
Outstanding at end period (in shares)       2,198,000 2,198,000         2,198,000      
Weighted Average Exercise Price                          
Weighted Average Exercise Price Granted (in dollars per share)         $ 10.75                
Weighted Average Exercise Price Outstanding at end period (in dollars per share)       $ 10.75 $ 10.75         $ 10.75      
Weighted Average Remaining Contractual Term (Years)                          
Weighted Average Remaining Contractual Term Outstanding (in Years)   4 years     3 years 10 months 24 days                
Unrecognized equity-based compensation costs       $ 7.1 $ 7.1         $ 7.1      
Cost expected to be recognized over a weighted-average period                   3 years 10 months 24 days