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Commitments And Contingencies (Future Minimum Payments Under Operating Leases) (Details)
$ in Thousands
Jun. 30, 2018
USD ($)
Commitments And Contingencies [Abstract]  
Due within 1 year $ 5,531
Due within 2 years 2,706
Due within 3 years 1,956
Due within 4 years 1,459
Due within 5 years $ 505