XML 107 R36.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Other (Expense) Income (Tables)
 12 Months Ended
Dec. 31, 2019
Other Income and Expenses [Abstract]  
Schedule of Other (Expenses) Income
Other (expense) income consist of the following (dollars in thousands):
 
Years Ended December 31,
 
2019
 
2018
 
2017
 
 
 
 
Interest income
$
21,623

 
$
13,843

 
$
2,864

Interest expense
(18,207
)
 
(13,840
)
 
(134
)
Interest expense on nonrecourse liability related to sale of future royalties
(4,500
)
 
(4,271
)
 
(1,434
)
Changes in fair value of derivative liabilities
—

 
—

 
76

Loss on extinguishment of debt
—

 
—

 
(295
)
Total
$
(1,084
)
 
$
(4,268
)
 
$
1,077