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LEASES - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended
Dec. 31, 2019
Oct. 01, 2019
Lessee, Lease, Description [Line Items]    
ROU assets $ 154,379  
Lease liabilities 159,241  
Impairment charge, operating lease 1,740  
Impairment charge, leasehold improvements $ 671  
Accounting Standards Update 2016-02    
Lessee, Lease, Description [Line Items]    
ROU assets   $ 163,552
Lease liabilities   $ 163,676