Leases (Schedule of Operating Lease Payments) (Details) - USD ($) $ in Thousands		Mar. 31, 2021		Dec. 31, 2020
Leases [Abstract]
Operating lease minimum payments, Due Current Year		$ 2,932
Operating lease minimum payments, Due Year Two		3,889
Operating lease minimum payments, Due Year Three		3,828
Operating lease minimum payments, Due Year Four		3,617
Operating lease minimum payments, Due Year Five		2,879
Operating lease minimum payments, Due after Year Five		22,046
Total operating lease payments	[1]	39,191
Interest		8,217
Present value of operating lease liabilities		$ 30,974	[2]	$ 31,717

[1] Includes $2.1 million related to options to extend lease terms that are reasonably certain of being exercised.

[2] Includes short-term operating lease liabilities of $2.9 million.