Leases (Schedule of Operating Lease Payments) (Details) - USD ($) $ in Thousands		Sep. 30, 2021		Dec. 31, 2020
Leases [Abstract]
Operating lease minimum payments, Due Current Year		$ 978
Operating lease minimum payments, Due Year Two		3,981
Operating lease minimum payments, Due Year Three		3,881
Operating lease minimum payments, Due Year Four		3,670
Operating lease minimum payments, Due Year Five		2,932
Operating lease minimum payments, Due after Year Five		22,099
Total operating lease payments	[1]	37,541
Interest		7,731
Present value of operating lease liabilities		$ 29,810	[2]	$ 31,717

[1] Includes $1.4 million related to options to extend lease terms that are reasonably certain of being exercised.

[2] Includes short-term operating lease liabilities of $3.1 million.