XML 58 R42.htm IDEA: XBRL DOCUMENT v3.7.0.1
Income Taxes (Details)
$ / shares in Units, $ in Millions, ₩ in Billions
 3 Months Ended 6 Months Ended
Jun. 30, 2017
USD ($)
$ / shares
Jun. 30, 2016
USD ($)
$ / shares
Jun. 30, 2017
USD ($)
$ / shares
Jun. 30, 2017
KRW (₩)
Jun. 30, 2016
USD ($)
$ / shares
United States $ (4.8) $ (20.8) $ (18.5)   $ (25.5)
Foreign 39.6 57.6 89.4   117.2
Income before income taxes 34.9 36.9 70.9   91.6
Income tax provision $ 4.6 $ 7.1 $ 9.6   $ 10.3
Effective income tax rate (as a percent) 13.20% 19.40% 13.50% 13.50% 11.20%
Income tax benefit (expense) due to change in estimate related to uncertain tax position and adjustment for ASU 2016-09     $ (3.9)    
Income tax benefit due to change in estimate related to uncertain tax position $ (2.7)        
Special income tax concession period     5 years 5 years  
Decrease in foreign income taxes due to special income tax concession $ 0.5 $ 1.2 $ 1.3   $ 1.8
Impact of income tax concession on basic earnings per common share (in dollars per share) | $ / shares $ 0.01 $ 0.02 $ 0.02   $ 0.03
Impact of income tax concession on diluted earnings per common share (in dollars per share) | $ / shares $ 0.01 $ 0.02 $ 0.02   $ 0.03
Tax Authority, South Korea (SRTO)          
Income tax assessment notice, amount     $ 8.2 ₩ 9.2  
Without income tax benefit adjustment          
Effective income tax rate (as a percent) 5.40%   8.10% 8.10%