Leases (Maturities of Operating Lease Liabilities) (Details) $ in Thousands	Dec. 31, 2019 USD ($)
Leases [Abstract]
Lessee, operating lease, liability, payments, due next twelve months	$ 49,529
Lessee, operating lease, liability, payments, due year two	45,463
Lessee, operating lease, liability, payments, due year three	39,519
Lessee, operating lease, liability, payments, due year four	34,095
Lessee, operating lease, liability, payments, due year five	26,989
Lessee, operating lease, liability, payments, due after year five	107,410
Lessee, operating lease, liability, payments, due	303,005
Lessee, operating lease, liability, undiscounted excess amount	(40,866)
Operating lease, liability	$ 262,139