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FAIR VALUE DISCLOSURES (Tables)
9 Months Ended
Sep. 30, 2018
FAIR VALUE DISCLOSURES  
Schedule of valuation of financial instruments measured at fair value on a recurring basis
          Fair Value Measurements at September 30, 2018 with:  
(in thousands)   Total     Quoted prices in
active markets 
for identical 
assets
    Significant 
other 
observable 
inputs
    Significant 
unobservable 
inputs
 
          (Level 1)     (Level 2)     (Level 3)  
Assets:                                
Equity securities   $ 334     $ 334     $     $  
Investments measured at net asset value   $ 26,344                          

 

          Fair Value Measurements at December 31, 2017  with:  
(in thousands)   Total     Quoted prices in
active markets 
for identical 
assets
    Significant 
other 
observable
inputs
    Significant 
unobservable
inputs
 
          (Level 1)     (Level 2)     (Level 3)  
Assets:                                
Equity securities   $ 270     $ 270     $     $  
Investments measured at net asset value   $ 23,463