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Debt (Schedule Of Short-Term And Long-Term Balances Of Term Loan) (Details) - USD ($)
$ in Thousands
Mar. 31, 2017
Dec. 31, 2016
Debt [Abstract]    
Term loan balance $ 73,125 $ 73,594
Less unamortized loan origination costs (1,884) (2,020)
Net borrowings 71,241 71,574
Less short-term loan balance (4,793) (4,562)
Long-term loan balance $ 66,448 $ 67,012