Leases (Maturities of Operating Lease Liabilities) (Details) $ in Thousands	Jun. 30, 2019 USD ($)
Leases [Abstract]
Operating lease payments due in 2019	$ 47,463
Operating lease payments due in 2020	90,945
Operating lease payments due in 2021	72,940
Operating lease payments due in 2022	57,898
Operating lease payments due in 2023	49,627
Operating lease payments due thereafter	144,935
Leases, operating lease, liability, payments, due, total	463,808
Less: Imputed interest	(59,714)
Total operating lease liability	$ 404,094