Annual report pursuant to Section 13 and 15(d)

Debt Instruments (Tables)

v3.3.1.900
Debt Instruments (Tables)
 12 Months Ended
Dec. 31, 2015
Debt Disclosure [Abstract]  
Schedule of long-term debt
Long-term debt, net consisted of the following:

 
As of December 31,
 
2014
 
2015
 
(in thousands)
1.75% convertible senior notes due 2020
$
—

 
$
345,000

Unamortized discount on convertible senior notes
—

 
(110,423
)
Long-term debt, net
$
—

 
$
234,577

Summary of the effective interest rate, contractually stated interest expense and costs related to amortization of discount for the Notes
The following table outlines the effective interest rate, contractually stated interest expense and costs related to the amortization of the discount for the Notes:
 
Twelve Months Ended 
 December 31,
 
2015
 
(in thousands except for effective interest rate)
Effective interest rate
10.18
%
Contractually stated interest expense
$
369

Amortization of discount
$
1,084