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Leases - Narrative (Details)
Sep. 30, 2019
Lessee, Lease, Description [Line Items]  
Operating lease, renewal term 10 years
Minimum [Member]  
Lessee, Lease, Description [Line Items]  
Operating lease, term of contract 1 year
Maximum [Member]  
Lessee, Lease, Description [Line Items]  
Operating lease, term of contract 9 years