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FAIR VALUE MEASUREMENTS (Tables)
12 Months Ended
Dec. 31, 2012
Fair Value Disclosures [Abstract]  
Financial Assets and Liabilities Accounted For at Fair Value on Recurring Basis

The Company’s carrying and estimated fair value of debt, at December 31, 2012 and 2011 were as follows:

 

  December 31, 2012  December 31, 2011 
  Carrying  Fair Value  Carrying  Fair Value 
  Value  Level 1  Level 2  Level 3  Value  Level 1  Level 2  Level 3 
Instrument                                
Convertible senior notes $126,918  $-   165,563  $-  $-  $-  $-  $- 
Term loan credit facility  290,812   -   293,720   -   -   -   -   - 
Revolver  -   -   -   -   65,000   -   65,000   - 
Industrial revenue bond  2,500   -   -   2,500   -   -   -   - 
Capital lease obligations  4,921   -   -   4,921   4,821   -   -   4,821 
  $425,151  $-  $459,283  $7,421  $69,821  $-  $65,000  $4,821