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DEBT (Tables)
 12 Months Ended
Dec. 31, 2014
Debt Disclosure [Abstract]  
Long-Term Debt
Long-term debt consists of the following (in thousands):
 
 
 
December 31,
 
 
 
2014
 
2013
 
Convertible senior notes
 
$
150,000
 
$
150,000
 
Term loan credit agreement
 
 
192,845
 
 
234,923
 
Industrial revenue bond
 
 
1,645
 
 
2,119
 
 
 
$
344,490
 
$
387,042
 
Less: unamortized discount
 
 
(19,217)
 
 
(24,907)
 
Less: current portion
 
 
(496)
 
 
(3,245)
 
 
 
$
324,777
 
$
358,890
 
Maturities of Long-Term Debt
Maturities of long-term debt for the five years succeeding December 31, 2014 and thereafter are as follows (in thousands):
 
2015
 
 
496
 
2016
 
 
517
 
2017
 
 
539
 
2018
 
 
150,093
 
2019
 
 
192,845
 
Maturities of long-term debt
 
$
344,490
 
Equity and Liability Components of Notes
The following table summarizes information about the equity and liability components of the Notes (dollars in thousands). The fair value of the notes outstanding were measured based on quoted market prices.
 
 
 
December 31,
 
 
 
2014
 
2013
 
Principal amount of convertible notes outstanding
 
$
150,000
 
$
150,000
 
Unamortized discount of liability component
 
 
(15,399)
 
 
(19,372)
 
Net carrying amount of liability component
 
 
134,601
 
 
130,628
 
Less: current portion
 
 
-
 
 
-
 
Long-term debt
 
$
134,601
 
$
130,628
 
Carrying value of equity component, net of issuance costs
 
$
20,993
 
$
20,993
 
Remaining amortization period of discount on the liability component
 
 
3.3 years
 
 
4.3 years
 
Contractual Coupon Interest Expense and Accretion Of Discount On Liability
Contractual coupon interest expense and accretion of discount on the liability component for the Note for the years ended December 31, 2014 and 2013 were as follow (in thousands):
 
 
 
Years Ended December 31,
 
 
 
2014
 
2013
 
2012
 
Contractual coupon interest expense
 
$
5,063
 
$
5,063
 
$
3,488
 
Accretion of discount on the liability component
 
$
3,973
 
$
3,710
 
$
2,411