Leases Operating Lease Assets and Liabilities (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019 USD ($) Rate	Sep. 30, 2019 USD ($) Rate
Leases [Abstract]
Operating Lease, Right-of-Use Asset	$ 49,548	$ 49,548
Operating Lease, Liability	53,737	53,737
Operating Lease, Cost	$ 1,275	$ 3,959
Operating Lease, Weighted Average Remaining Lease Term	15 years 5 months 8 days	15 years 5 months 8 days
Operating Lease, Weighted Average Discount Rate, Percent | Rate	3.42%	3.42%
Operating Leases, Rent Expense		$ 3,351