XML 55 R37.htm IDEA: XBRL DOCUMENT v3.3.1.900
Debt (Tables)
 12 Months Ended
Dec. 31, 2015
Debt Instrument [Line Items]  
Schedule of Long-term Debt Instruments
The net carrying amount of the liability component of the Notes consists of the following:
 
 
As of December 31,
 
 
2015
 
2014
Total convertible senior notes - par
 
$
11,154

 
$
169,400

Unamortized discount
 
(352
)
 
(22,627
)
 
 
$
10,802

 
$
146,773
Interest Expense Associated with Convertible Notes
 
 
Year Ended December 31,
 
 
2015
 
2014
 
2013
Contractual coupon interest rate
 
$
544

 
$
5,036

 
$
7,230

Amortization of discount and note issuance costs
 
2,818

 
17,821

 
22,980

 
 
$
3,362

 
$
22,857

 
$
30,210