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Long-term Debt (Tables)
12 Months Ended
Dec. 31, 2018
Debt Disclosure [Abstract]  
Schedule Of Line Of Credit Facilities
Amounts borrowed and outstanding letters of credit were as follows (in thousands):
 
December 31, 2018
 
December 31, 2017
Revolving credit facility used
$
249,830

 
$
249,830

Less: Outstanding letters of credit
(2,830
)
 
(2,830
)
Outstanding revolving credit facility
247,000

 
247,000

Unamortized debt financing fees
(2,307
)
 
(2,085
)
Long-term debt
$
244,693

 
$
244,915