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SHARE CAPITAL, ADDITIONAL PAID-IN CAPITAL AND CONTRIBUTED SURPLUS (Schedule Line Items) - USD ($)
$ / shares in Units, $ in Thousands
Jun. 30, 2016
Dec. 31, 2015
Stockholders' Equity Note [Abstract]    
Share Capital, shares authorized 125,000,000 125,000,000
Common stock, value authorized $ 125,000 $ 125,000
Share capital, par value (in dollars per share) $ 1.00 $ 1.00
Share Capital, shares issued 93,504,575 93,468,000
Common Stock, Value, Issued $ 93,505 $ 93,468