Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Successor Company Warrants (Details)

v3.21.2
Fair Value Measurements - Successor Company Warrants (Details)
 1 Months Ended 2 Months Ended 3 Months Ended 4 Months Ended 5 Months Ended 7 Months Ended 9 Months Ended 12 Months Ended
Jun. 12, 2021
Aug. 28, 2020
Jun. 11, 2021
Aug. 27, 2020
Jul. 31, 2021
Jul. 31, 2021
Oct. 31, 2020
Oct. 31, 2021
Apr. 30, 2021
Oct. 31, 2020
Jul. 31, 2020
Apr. 30, 2020
Jun. 11, 2021
Oct. 31, 2021
Aug. 27, 2020
Oct. 31, 2020
Jan. 31, 2021
Jan. 31, 2020
Fair Value Measurement Inputs and Valuation Techniques [Line Items]                                    
Financial Designation, Predecessor and Successor [Fixed List] Successor Predecessor Predecessor Predecessor Successor Successor Predecessor Successor Predecessor Predecessor Predecessor Predecessor Predecessor Successor Predecessor Predecessor Predecessor Predecessor
Risk-free interest rates                                    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]                                    
Measurement input     0.76   0.67 0.67   1.09         0.76 1.09        
Volatility                                    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]                                    
Measurement input     31   33 33   35         31 35        
Expected lives (years)                                    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]                                    
Measurement input     5.0   4.9 4.9   4.6         5.0 4.6        
Value per unit                                    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]                                    
Measurement input     2.80   1.75 1.75   4.01         2.80 4.01