DEBT - Components of Interest Expense (Details) - 2016 Convertible Senior Notes - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
---|---|---|---|---|
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
|
2016 Notes: | ||||
Amortization of the discount on the liability component | $ 2,132 | $ 2,142 | $ 6,300 | $ 5,874 |
Cash interest related to the contractual interest coupon | 892 | 885 | 2,671 | 2,548 |
Total | 3,024 | 3,027 | 8,971 | 8,422 |
Amortization of debt discount (premium), interest costs capitalized | $ 100 | $ 100 | 200 | 500 |
Interest expense, debt, excluding amortization, interest costs capitalized | $ 100 | $ 200 |