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Long-Term Debt (Tables)
12 Months Ended
Dec. 31, 2019
Debt Disclosure [Abstract]  
Schedule Of Long-Term Debt
Long-term debt consists of the following:
 
 
December 31,
 
 
2019
 
2018
OpCo Revolver (variable interest rate of London Interbank Offered Rate ("LIBOR") plus
   2.0%, scheduled maturity of September 25, 2023)
 
$
22,619

 
$
224,064

MLP Revolver (variable interest rate of LIBOR plus 2.0%, scheduled maturity of
   April 29, 2021)
 
377,055

 
253,544

Long-term debt payable to Westlake
 
$
399,674

 
$
477,608