Leases (Narrative) (Details) - USD ($)	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019	Dec. 31, 2018
Leases [Abstract]
Term of contract	12 years	12 years
Weighted average remaining lease term	6 years 8 months 12 days	6 years 8 months 12 days
Weighted average discount rate	5.70%	5.70%
Operating lease right-of-use assets	$ 67,666,000	$ 67,666,000	$ 0
Additional right-of use assets in exchange of operating lease obligations	$ 12,300,000
Cash flows from operations		$ 15,400,000