XML 60 R46.htm IDEA: XBRL DOCUMENT v3.10.0.1
DEBT (Details 3) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Amortization of debt discount     $ 6,283 $ 4,362
Capitalized interest and other (Note 5) $ (200) $ (200) $ (600) $ (400)
Effective interest rate on convertible senior notes 7.81% 7.81% 7.81% 7.70%
Convertible Senior Notes Due 2019        
Contractual interest expense $ 2,051 $ 2,053 $ 4,102 $ 3,242
Amortization of debt issuance costs 406 389 808 590
Amortization of debt discount 3,170 2,951 6,283 4,362
Capitalized interest and other (Note 5) (230) (167) (640) (379)
Total $ 5,397 $ 5,226 $ 10,553 $ 7,815