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Debt (Tables)
3 Months Ended
Mar. 31, 2013
Outstanding Convertible Debt and Related Deferred Financing Costs
The Company had outstanding convertible debt and related deferred financing costs on its consolidated balance sheet as follows (in thousands):
 
 
As of
 
March 31, 2013
 
December 31, 2012
Principal amount of the 5.375% Convertible Senior Notes
$
15,000

 
$
15,000

Principal amount of the 3.75% Convertible Senior Notes
143,750

 
143,750

Unamortized discount
(37,831
)
 
(40,591
)
Total debt
120,919

 
118,159

Current portion of long-term debt
14,733

 
14,429

Long-term debt
$
106,186

 
$
103,730

Deferred financing costs
$
1,855

 
$
2,004

Interest Expense
Interest expense related to the 5.375% Notes (as defined below) and the 3.75% Notes (as defined below) was included in interest expense on the consolidated statements of operations as follows (in thousands):
 
 
Three Months Ended March 31,
 
2013
 
2012
Contractual coupon interest
$
1,549

 
$
1,549

Accretion of debt discount
2,760

 
2,304

Amortization of debt issuance costs
148

 
148

Total interest expense
$
4,457

 
$
4,001