Leases (Supplemental Cash Flow Information) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating cash flows from operating leases	$ 15,539	$ 14,289
Operating cash flows from finance leases	13	0
Financing cash flows from finance leases	609	0
ROU assets obtained in exchange for lease liabilities, operating leases	8,673	15,372
ROU assets obtained in exchange for lease liabilities, finance leases	$ 3,047	$ 0