v2.4.0.8
Long-Term Debt (Tables)
 6 Months Ended
Jun. 30, 2013
Long-term Debt, Unclassified [Abstract]  
Schedule of Long-term Debt Instruments [Table Text Block]
The following table reflects the carrying value of the Company's convertible debt as of June 30, 2013 and December 31, 2012 (in thousands):
 
June 30, 2013
 
December 31, 2012
2.50% Senior Convertible Notes due 2016
$
230,000

 
$
230,000

Less: Unamortized interest discount
(25,470
)
 
(29,609
)
Net carrying amount of 2.50% Senior Convertible Notes due 2016
$
204,530

 
$
200,391

The following table presents the amount of interest cost recognized for the three and six months ended June 30, 2013 and June 30, 2012 relating to the contractual interest coupon, accretion of the debt discount, and the amortization of financing costs (in thousands):
 
For the three months ended June 30,
 
For the six months ended June 30,
 
2013
 
2012
 
2013
 
2012
Contractual coupon interest
$
1,438

 
$
1,438

 
$
2,876

 
$
2,875

Accretion of debt discount
2,105

 
1,964

 
4,139

 
3,863

Amortization of financing costs
326

 
326

 
652

 
652

Total
$
3,869


$
3,728

 
$
7,667

 
$
7,390