Leases (Component of Lease and Other Information) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Leases [Abstract]
Operating lease right-of-use assets	$ 13,501	$ 13,986
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Other Assets	Other Assets
Operating lease liabilities	$ 15,369	$ 15,862
Operating Lease, Liability, Statement of Financial Position [Extensible List]	Accounts Payable and Accrued Liabilities	Accounts Payable and Accrued Liabilities
Weighted-average remaining lease term - operating leases	11 years 7 months 6 days	10 years 2 months 12 days
Weighted-average discount rate - operating leases	6.22%	5.88%
Short-term lease payments	$ 200