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Long-term Debt (Tables)
6 Months Ended
Jun. 30, 2019
Debt Disclosure [Abstract]  
Schedule of Long-term Debt Instruments
Long-term debt consisted of the following:

June 30, 2019December 31, 2018
(in thousands)
Revolving credit agreement$87,300 $85,300 
Obligation under finance lease (Note 10)10,252 — 
97,552 85,300 
Less current maturities(1,339)— 
Total long-term debt$96,213 $85,300