XML 55 R43.htm IDEA: XBRL DOCUMENT v3.8.0.1
LONG-TERM DEBT - Outstanding (Details) - USD ($)
$ in Thousands
Mar. 31, 2018
Dec. 31, 2017
Long-term debt    
Long-term debt $ 1,336,941 $ 1,361,826
Less: current portion of long-term debt (1,137,403) (1,167,487)
Less unamortized discount and debt financing costs (3,456) (3,780)
Long-term debt less unamortized discount and debt financing costs 196,082 190,559
Refinancing Facility    
Long-term debt    
Long-term debt 178,504 188,312
Korean Export Credit Facility    
Long-term debt    
Long-term debt 647,931 662,312
Senior Notes    
Long-term debt    
Long-term debt 199,538 194,339
Sinosure Credit Facility    
Long-term debt    
Long-term debt $ 310,968 $ 316,863