XML 54 R35.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Convertible Senior Notes Due 2023 (Tables)
 12 Months Ended
Dec. 31, 2019
Debt Disclosure [Abstract]  
Summary of liability component of 2023 Notes
The long term debt consists of the following (dollars in thousands):
 
December 31,
2019
 
December 31,
2018
2023 Notes
$
402,500

 
$
402,500

Unamortized debt discount and deferred financing costs
(57,330
)
 
(73,038
)
Total carrying value
$
345,170

 
$
329,462