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Consolidated Statement of Changes in Stockholders' Equity - USD ($)
shares in Thousands, $ in Thousands
Total
Shares
Common Stock Amount
Paid-in Additional Capital
Treasury Shares
Accumulated Deficit
Translation Differences
Other Reserves
Total Equity
Balance at beginning of year at Dec. 31, 2015   $ 92,909,936 $ 929 $ 878,236   $ (147,945) $ (232) $ 6,904 $ 737,893
Profit for the year $ (9,260)         9,260     9,260
Other comprehensive income/(loss)           (49) 28   (20)
Total comprehensive income/(loss) 9,239         9,211 $ 28   9,239
Cash dividends declared and paid           $ (66,365)     (66,365)
Purchase of treasury shares (2,031) (359,831) (4) (2,027)         (2,031)
Issuance of convertible bonds 0                
Purchase of convertible bonds 0     (1,090)         (1,090)
Compensation related to options and restricted stock   $ 883,699 $ 9 $ 5,978       $ 1,378 $ 7,365
Balance at year end at Dec. 31, 2016   93,433,804 934 881,097   (205,099) (203) 8,283 685,011
Profit for the year (6,602)         $ 6,602     $ 6,602
Other comprehensive income/(loss)           (166) $ 193   27
Total comprehensive income/(loss) 6,628         6,435 193   6,628
Adjustment           (95) 95   0
Cash dividends declared and paid           (23,328)     (23,328)
Issuance of stock   $ 47,724,395 $ 477 $ 254,367         254,845
Purchase of treasury shares 0                
Issuance of convertible bonds 0                
Purchase of convertible bonds (1,035)     (2,213)         (2,213)
Compensation related to options and restricted stock   1,259,208 13 7,543       $ (2,607) 4,948
Balance at year end (Restated [member]) at Dec. 31, 2017   142,417,407 1,424 1,140,794   (226,821) 85 5,676 921,158
Balance at year end (Previously stated [member]) at Dec. 31, 2017   142,417,407 1,424 1,140,794   (222,087) 85 5,676 925,892
Balance at year end (Increase (decrease) due to changes in accounting policy required by IFRSs [member]) at Dec. 31, 2017           (4,734)     (4,734)
Balance at year end at Dec. 31, 2017 925,892 142,417,407 1,424 1,140,794   (222,087) 85 5,676 925,892
Profit for the year 46,927         (46,927)     (46,927)
Other comprehensive income/(loss)           (148) (53)   (201)
Total comprehensive income/(loss) (47,128)         (47,075) (53)   (47,128)
Cash dividends declared and paid           (11,487)     (11,487)
Purchase of treasury shares (5,026)       $ (5,026)       (5,026)
Retirement of treasury shares   (892,497) (9) (3,654) 3,662       0
Issuance of convertible bonds 38,945     3,165         3,165
Purchase of convertible bonds 3,589     (1,613)         (1,613)
Compensation related to options and restricted stock   1,175,136 12 6,414       (3,827) 2,599
Balance at year end at Dec. 31, 2018 $ 861,668 $ 142,700,046 $ 1,427 $ 1,145,107 $ (1,364) $ (285,383) $ 32 $ 1,848 $ 861,667