Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Schedule of Qualitative Information) (Details)

v3.22.1
Fair Value Measurements (Schedule of Qualitative Information) (Details) - item
6 Months Ended 12 Months Ended
Mar. 31, 2022
Sep. 30, 2021
Minimum [Member] | Estimated Change Of Control Dates [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Estimated change of control dates Sep. 01, 2023 Sep. 01, 2022
Minimum [Member] | Discount Rate [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Significant unobservable input 0.086 0.066
Minimum [Member] | Probability Of Change Of Control [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Significant unobservable input 0.20 0.20
Maximum [Member] | Estimated Change Of Control Dates [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Estimated change of control dates Sep. 01, 2025 Sep. 01, 2025
Maximum [Member] | Discount Rate [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Significant unobservable input 0.090 0.079
Maximum [Member] | Probability Of Change Of Control [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Significant unobservable input 0.90 0.90