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DEBT (Tables)
 6 Months Ended
Jun. 30, 2018
Debt Disclosure [Abstract]  
Long-Term Debt
Long-term debt consists of the following (in thousands):
 
 
 
June 30,
 
 
December 31,
 
 
 
2018
 
 
2017
 
Convertible senior notes due 2018
 
$
-
 
 
$
44,561
 
Senior notes due 2025
 
 
325,000
 
 
 
325,000
 
Term loan credit agreement
 
 
186,639
 
 
 
187,579
 
Other debt
 
 
-
 
 
 
93
 
 
 
$
511,639
 
 
$
557,233
 
Less: unamortized discount and fees
 
 
(6,183
)
 
 
(7,122
)
Less: current portion
 
 
(1,880
)
 
 
(46,020
)
 
 
$
503,576
 
 
$
504,091
 
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 three and six month periods ended June 30, 2018, and 2017 included in
Interest Expense
on the Company’s Condensed Consolidated Statements of Operations were as follows (in thousands):
 
 
 
Three Months Ended June 30,
 
 
Six Months Ended June 30,
 
 
 
2018
 
 
2017
 
 
2018
 
 
2017
 
Contractual coupon interest expense
 
$
120
 
 
$
402
 
 
$
470
 
 
$
815
 
Accretion of discount and fees on the liability component
 
$
103
 
 
$
390
 
 
$
461
 
 
$
784