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Disclosures About Fair Value Of Financial Instruments (Schedule Of Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Details)
$ in Thousands
Dec. 31, 2015
USD ($)
Assets  
Cash equivalents $ 40,313
Cross-currency interest rate swap 6,741
Total Assets 47,054
Liabilities  
Cross-currency interest rate swap 2,126
Long-term incentive plan 248
Total Liabilities 2,374
Quoted Prices in Active Markets For Identical Assets (Level 1) [Member]  
Assets  
Cash equivalents 40,313
Cross-currency interest rate swap 0
Total Assets 40,313
Liabilities  
Cross-currency interest rate swap 0
Long-term incentive plan 0
Total Liabilities 0
Significant Other Observable Inputs (Level 2) [Member]  
Assets  
Cash equivalents 0
Cross-currency interest rate swap 6,741
Total Assets 6,741
Liabilities  
Cross-currency interest rate swap 2,126
Long-term incentive plan 248
Total Liabilities 2,374
Significant Unobservable Inputs (Level 3) [Member]  
Assets  
Cash equivalents 0
Cross-currency interest rate swap 0
Total Assets 0
Liabilities  
Cross-currency interest rate swap 0
Long-term incentive plan 0
Total Liabilities $ 0