Commitments And Contingencies (Reconciliation Of Contingent Consideration Liability) (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2019 USD ($)
Business Combination, Contingent Consideration, Reconciliation of Change in Liability [Roll Forward]
Balance at beginning of period	$ 7,302
Payments	(4)
Accretion	409
Net foreign currency translation adjustment	15
Balance at end of the period	7,722
Less current portion in accrued expenses and other current liabilities	(5,624)
Total long-term portion in other long-term liabilities	2,098
Contingent consideration, total remaining estimated payments	$ 9,100