Leases - Leases by region (Details) $ in Thousands	Sep. 30, 2019 USD ($)
Lessee, Lease, Description [Line Items]
Consolidated	$ 299,790
North America
Lessee, Lease, Description [Line Items]
Consolidated	148,188
Europe, Africa and Middle East
Lessee, Lease, Description [Line Items]
Consolidated	116,579
Greater Asia
Lessee, Lease, Description [Line Items]
Consolidated	21,439
Latin America
Lessee, Lease, Description [Line Items]
Consolidated	$ 13,584