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DEBT (Tables)
 9 Months Ended
Sep. 30, 2013
Debt Disclosure [Abstract]  
Long-Term Debt
Long-term debt consists of the following (in thousands):
 
 
 
September 30,
 
December 31,
 
 
 
2013
 
2012
 
Convertible senior notes
 
$
150,000
 
$
150,000
 
Term loan credit agreement
 
 
255,615
 
 
297,750
 
Industrial revenue bond
 
 
2,235
 
 
2,500
 
 
 
$
407,850
 
$
450,250
 
Less: unamortized discount
 
 
(26,573)
 
 
(30,020)
 
Less: current portion
 
 
(3,240)
 
 
(3,381)
 
 
 
$
378,037
 
$
416,849
 
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.
 
 
 
September 30,
 
December 31,
 
 
 
2013
 
2013
 
Principal amount of convertible notes outstanding
 
$
150,000
 
$
150,000
 
Unamortized discount of liability component
 
 
(20,323)
 
 
(23,082)
 
Net carrying amount of liability component
 
 
129,677
 
 
126,918
 
Less: current portion
 
 
-
 
 
-
 
Long-term debt
 
$
129,677
 
$
126,918
 
Carrying value of equity component, net of issuance costs
 
$
20,993
 
$
20,993
 
Remaining amortization period of discount on the liability component
 
 
4.6 years
 
 
5.3 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 three and nine month periods ended September 30, 2013 were as follow (in thousands):
 
 
 
Three Months Ended
September 30, 2013
 
Nine Months Ended
September 30, 2013
 
Contractual coupon interest expense
 
$
1,266
 
$
3,797
 
Accretion of discount on the liability component
 
$
935
 
$
2,759