Leases (Schedule of Maturities of Lease Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Operating leases
Year one	$ 8,734
Year two	7,586
Year three	6,970
Year four	6,985
Year five	6,775
Thereafter	36,834
Total lease payments	73,884
Less imputed interest	(17,765)
Total operating leases	56,119	$ 14,731
Finance lease
Total finance leases	$ 0	16,121
Salt Lake City, Utah
Operating leases
Year one		4,737
Year two		3,412
Year three		2,199
Year four		1,801
Year five		1,782
Thereafter		2,789
Total lease payments		16,720
Less imputed interest		(1,989)
Total operating leases		14,731
Finance lease
Year one		2,838
Year two		3,004
Year three		3,004
Year four		3,004
Year five		3,004
Thereafter		6,501
Total lease payments		21,355
Less imputed interest		(5,234)
Total finance leases		$ 16,121