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Debt (Tables)
 6 Months Ended
Jun. 30, 2017
Debt Disclosure [Abstract]  
Schedule of debt
Long-term debt as of June 30, 2017 and December 31, 2016 consists of the following:
(in thousands)
June 30, 
 2017
 
December 31, 
 2016
Senior secured notes, due 2024
$
350,000

 
$
350,000

Revolving credit agreement
66,722

 
—

Other
383

 
2,963

 
417,105

 
352,963

Unamortized debt issuance costs related to senior secured notes
(6,057
)
 
(6,474
)
 
411,048

 
346,489

Less: Current portion of long-term debt
96

 
1,662

 
$
410,952

 
$
344,827