Leases (Supplemental Balance Sheet Information Related to Leases) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Right of use assets:
Right of use assets, net	$ 536,433
Lease liabilities:
Operating leases	364,803
Financing leases	108,890
Total	$ 473,693	$ 70,668
Weighted average remaining lease term (years):
Operating leases	46 years
Finance leases	15 years 10 months 24 days
Weighted average discount rate:
Operating leases	5.00%
Finance leases	5.18%
Real Estate
Right of use assets:
Operating leases	$ 374,217
Finance leases	162,216
Right of use assets, net	536,433
Corporate
Right of use assets:
Operating leases	12,474
Real Estate and Corporate
Right of use assets:
Right of use assets, net	$ 548,907