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LONG-TERM DEBT (Tables)
12 Months Ended
Dec. 31, 2019
Debt Disclosure [Abstract]  
Long-Term Debt
Long-term debt consists of the following (in thousands):
 
December 31, 2019
 
December 31, 2018
Senior notes due 2025
$
325,000

 
$
325,000

Term loan credit agreement
135,228

 
185,699

 
460,228

 
510,699

Less: unamortized discount and fees
(4,842
)
 
(5,801
)
Less: current portion

 
(1,880
)
 
$
455,386

 
$
503,018


Contractual Coupon Interest Expense and Accretion of Discount on Liability
Contractual coupon interest expense and accretion of discount and fees on the liability component for the Convertible Notes for the years ended December 31, 2019, 2018, and 2017 included in Interest expense on the Company’s Consolidated Statements of Operations were as follows (in thousands):
 
Year Ended December 31,
 
2019
 
2018
 
2017
Contractual coupon interest expense
$

 
$
470

 
$
1,570

Accretion of discount and fees on the liability component
$

 
$
461

 
$
1,537