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Debt (Tables)
 3 Months Ended
Mar. 31, 2018
Debt  
Schedule of liability components of the Convertible Notes

 

The Convertible Notes consist of the following (in thousands):

 

Liability component

 

March 31, 2018

 

December 31, 2017

 

Principal

 

$
250,000

 

$
250,000

 

Less: debt discount (1)

 
(79,095

)
(81,566

)

Less: deferred financing(1)

 
(4,137

)
(4,267

)

 

 

 

 

 

 

Net carrying value of the debt

 

$
166,768

 

$
164,167

 

 

 

 

 

 

 

 

 

 

(1)

Included in the consolidated balance sheets within convertible notes and amortized to interest expense over the remaining life of the convertible notes using the effective interest rate method.

 

Components of total interest expense recognized related to the Convertible Notes

 

 

Three Months ended March 31,

 

Components (In thousands)

 

2018

 

2017

 

Contractual interest expense

 

$
1,887

 

$
1,887

 

Amortization of debt discount

 
2,472

 
2,261

 

Amortization of deferred financing

 
129

 
142

 

 

 

 

 

 

 

Total

 

$
4,488

 

$
4,290