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Consolidated Statements of Changes in Equity (Parenthetical) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Jan. 01, 2018
Dec. 31, 2017
Dividends (in dollars per share) $ 0.11 $ 0.10    
Deferred income taxes $ 68,368 $ 58,334 $ 75,854  
Restatement Adjustment | ASC 606        
Deferred income taxes     $ 1,555 $ 1,555