Leases (Schedule of Operating Lease Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Operating Leased Assets [Line Items]
Finance Lease, Right-of-Use Asset, Amortization	$ 1,291	$ 607
Finance Lease, Interest Expense	358	34
Finance Lease, Cost	1,649	641
Operating Lease, Cost	23,983	21,983
Subsidiaries [Member] | Land [Member]
Operating Leased Assets [Line Items]
Operating Lease, Cost	$ 1,400	$ 1,000