Leases (Other Lease Related Information) (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2019 USD ($) Rate
Leases [Abstract]
Cash paid for amounts included in the measurement of operating lease liabilities, operating cash flows from operating leases	$ 237,055
Right-of-use asset obtained in exchange for new operating lease liability	$ 153,046
Weighted-average remaining lease term - operating leases	10 years 4 months 24 days
Weighted-average discount rate - operating leases | Rate	4.20%