Operating & Finance Leases (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Leases [Abstract]
Finance Lease, Amortization of right-of-use assets	$ 321	$ 321	$ 963	$ 963
Finance Lease, Interest on lease liabilities	1,456	1,455	4,369	4,366
Operating lease cost	1,443	1,524	4,554	4,521
Variable lease cost	89	131	246	351
Total Lease Cost	3,309	3,431	10,132	10,201
Operating cash flows for finance leases	1,432	1,432	4,304	4,325
Operating cash flows for operating leases	1,421	1,500	4,232	4,279
Financing cash flows for finance leases	$ 11	$ 2	$ 33	$ 43
Weighted-average remaining lease term - finance leases	17 years 6 months	18 years 4 months 24 days	17 years 6 months	18 years 4 months 24 days
Weighted-average remaining lease term - operating leases	53 years 4 months 24 days	53 years 8 months 12 days	53 years 4 months 24 days	53 years 8 months 12 days
Weighted-average discount rate - finance leases	8.00%	8.00%	8.00%	8.00%
Weighted-average discount rate - operating leases	4.40%	4.50%	4.40%	4.50%