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LEASES - Weighted average lease terms and discount rates (Details) | Sep. 30, 2021 | Sep. 30, 2020
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Weighted-average remaining lease term (years) |  |
Operating leases, weighted-average remaining lease term | 8 years | 8 years 4 months 24 days
Finance leases, weighted-average remaining lease term | 8 years 1 month 6 days | 8 years 6 months
Weighted-average discount rate |  |
Operating leases, weighted-average discount rate (in percentage) | 4.48% | 4.36%
Finance leases, weighted-average discount rate (in percentage) | 5.48% | 5.51%

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