XML 84 R77.htm IDEA: XBRL DOCUMENT v3.8.0.1
TANGIBLE FIXED ASSETS (Detail Textuals) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Disclosure of detailed information about property, plant and equipment [line items]      
Depreciation expense relates to administrative expense $ 114,451 $ 122,215 $ 67,327
Vessels and capitalized dry docking      
Disclosure of detailed information about property, plant and equipment [line items]      
Capitalized dry-docking costs 68,100 80,400 81,700
Other property, plant and equipment      
Disclosure of detailed information about property, plant and equipment [line items]      
Depreciation expense relates to administrative expense $ 900 $ 1,800 $ 900