Leases (Lease Cost and Cash Paid) (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2019	Mar. 31, 2018
Leases [Abstract]
Operating lease cost		$ 928
Variable lease cost		11
Total lease cost	[1]	939	$ 916
Cash paid reducing operating lease liabilities		$ 920

[1] Included in net occupancy expenses in the Unaudited Consolidated Income Statement.