Note 16 Additional Information (Details)	12 Months Ended
	Sep. 30, 2023
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Period	1 year
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Period	4 years
Performance Shares With TSR [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Potential adjustments to PSUs	15.00%
Performance Shares With TSR [Member] | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Potential Payout Percentage	70.00%
Performance Shares With TSR [Member] | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Potential Payout Percentage	130.00%