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Fair Value Measurements And Derivative Instruments Reporting (Fair Value And Basis Of Valuation Of Financial Liabilities) (Details) - Fair Value, Recurring [Member] - Interest Rate Swap Asset [Member]
$ in Thousands
Dec. 31, 2018
USD ($)
[1]
Level 1 [Member]  
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]  
Financial liabilities
Level 2 [Member]  
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]  
Financial liabilities 169
Level 3 [Member]  
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]  
Financial liabilities
[1] See "Derivative Instruments Reporting" below for detailed information regarding the Company's interest rate swap agreements.