XML 74 R60.htm IDEA: XBRL DOCUMENT v3.19.2
Fair Value Measurements (Summary Of Financial Assets And Liabilities Accounted For At Fair Value) (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Assets:    
Investments in marketable securities $ 162,656 $ 162,797
Liabilities:    
Derivatives 650 $ 13,288
Interest Rate Swap    
Assets:    
Investments in marketable securities 162,656  
Derivatives 15,378  
Total assets 178,034  
Liabilities:    
Derivatives 3,048  
Interest Rate Swap | Level 1    
Assets:    
Investments in marketable securities 58,377  
Derivatives 13,883  
Total assets 72,260  
Liabilities:    
Derivatives 0  
Interest Rate Swap | Level 2    
Assets:    
Investments in marketable securities 104,279  
Derivatives 740  
Total assets 105,019  
Liabilities:    
Derivatives 3,048  
Interest Rate Swap | Level 3    
Assets:    
Investments in marketable securities 0  
Derivatives 755  
Total assets 755  
Liabilities:    
Derivatives $ 0