Annual report pursuant to Section 13 and 15(d)

COMMITMENTS AND CONTINGENT LIABILITIES (Details)

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COMMITMENTS AND CONTINGENT LIABILITIES (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2017
Commitments and Contingencies Disclosure [Abstract]      
Annual rental expense under operating leases $ 38,015 $ 38,934 $ 36,400
Future minimum rental commitments under operating leases [Abstract]      
Fiscal year 2020 28,557    
Fiscal year 2021 21,567    
Fiscal year 2022 14,755    
Fiscal year 2023 9,394    
Fiscal year 2024 6,694    
Employment Agreements      
Long-term Purchase Commitment [Line Items]      
Aggregate commitment amount for salaries $ 2,349