| Summary of long-term debt |
|
|
|
|
|
|
|
|
|
|
(in thousands of dollars)
|
|
December 31, 2016
|
|
December 31, 2015
|
|
|
Revolver
|
|
$
|
178,000
|
|
$
|
110,000
|
|
|
2022 Notes
|
|
|
409,148
|
|
|
500,000
|
|
|
2023 Notes
|
|
|
150,000
|
|
|
250,000
|
|
|
Total principal amount
|
|
|
737,148
|
|
|
860,000
|
|
|
Less: unamortized discount
|
|
|
(6,240)
|
|
|
(12,088)
|
|
|
Less: debt issuance costs, net
|
|
|
(6,899)
|
|
|
(10,258)
|
|
|
Total carrying amount
|
|
$
|
724,009
|
|
$
|
837,654
|
|
|