Leases (Supplemental Balance Sheet Information Related To Leases) (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Operating Leases
Leased right-of-use assets, net	$ 30,086	$ 34,074
Current portion of operating lease liabilities	4,229	4,327
Operating lease liabilities, net of current portion	28,547	32,277
Total operating lease liabilities	32,776	36,604
Finance Leases
Finance lease right-of-use assets, gross	424	552
Accumulated depreciation	(311)	(338)
Property and equipment, net	113	214
Current portion of finance lease liabilities	58	131
Finance lease liabilities, net of current portion	53	83
Total finance lease liabilities	$ 111	$ 214
Weighted-average remaining lease term
Operating leases	11 years 1 month 6 days	11 years 3 months 18 days
Finance leases	2 years	2 years 1 month 6 days
Weighted-average discount rate
Operating leases	4.70%	4.50%
Finance leases	4.20%	4.70%