Leases (Schedule of Supplemental Cash Flow Information Related to Leases) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Lessee Disclosure [Abstract]
Operating cash outflows from operating leases	$ 5,300	$ 4,932
Operating cash outflows from finance leases	1,475	1,563
Financing cash outflows from finance leases	7,214	1,180	$ 0
Right-of-use asset obtained in exchange for operating lease liability	4,017	9,250
Right-of-use asset obtained in exchange for finance lease liability	$ 0	$ 5,686