Annual report pursuant to Section 13 and 15(d)

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

v3.22.2.2
Fair Value Measurements (Schedule of Qualitative Information) (Details) - item
 12 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Minimum [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Estimated change of control dates 2023-09 2022-09
Minimum [Member] | Discount Rate [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Significant unobservable input 0.136 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]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Estimated change of control dates 2025-09 2025-09
Maximum [Member] | Discount Rate [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Significant unobservable input 0.142 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