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OPERATING LEASE RIGHT-OF-USE ASSETS AND LIABILITIES (Tables)
 6 Months Ended
Mar. 31, 2022
Leases [Abstract]  
Schedule of Future Minimum Rental Payments for Operating Leases Undiscounted future minimum lease payments expected to be received for operating leases at March 31, 2022 were as follows:
(Dollars in thousands)
Remaining in 2022$19,801 
202334,172 
202426,211 
202518,884 
202610,789 
Thereafter14,332 
Total undiscounted future minimum lease payments receivable for operating leases$124,189 
Undiscounted future minimum operating lease payments and a reconciliation to the amount recorded as operating lease liabilities at March 31, 2022 were as follows:
(Dollars in thousands)
Remaining in 2022$2,192 
20233,892 
20243,854 
20253,718 
20263,195 
Thereafter21,732 
Total undiscounted future minimum lease payments 38,583 
Discount(4,938)
Total operating lease liabilities$33,645 
Weighted-Average Discount Rate and Remaining Lease Term for Operating Leases
The weighted-average discount rate and remaining lease term for operating leases at March 31, 2022 were as follows:
Weighted-average discount rate2.34 %
Weighted-average remaining lease term (years)10.75

The components of total lease costs for operating leases were as follows:
Three Months Ended March 31,Six Months Ended March 31,
(Dollars in thousands)2022202120222021
Lease expense$1,119 $991 $2,256 $1,945 
Short-term and variable lease cost40 69 75 132 
ROU asset impairment— — — 224 
Sublease income(355)(177)(531)(285)
Total lease cost for operating leases$804 $883 $1,800 $2,016