Leases Operating Lease Assets and Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Leases [Abstract]
Operating Lease, Right-of-Use Asset	$ 46,881		$ 46,881		$ 48,642
Operating Lease, Liability	$ 51,232		51,232		$ 52,894
Operating Lease, Cost			$ 1,325	$ 1,136
Operating Lease, Weighted Average Remaining Lease Term	14 years 11 months 15 days		14 years 11 months 15 days		16 years 1 month 6 days
Operating Lease, Weighted Average Discount Rate, Percent	3.41%		3.41%		3.48%
Operating Leases, Rent Expense	$ 1,368	$ 1,347	$ 2,736	$ 2,684