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Debt and Capital Lease Obligations (Tables)
9 Months Ended
Sep. 30, 2017
Debt and Capital Lease Obligations [Abstract]  
Schedule of Long-term Debt Instruments
(in thousands):
 
September 30,
2017
 
December 31,
2016
Senior notes
$
150,000

 
$
150,000

Credit facility
85,000

 
68,000

Total long-term debt
235,000

 
218,000

Less: Debt issuance costs
(1,136
)
 
(1,512
)
Long-term debt, net
$
233,864

 
$
216,488