XML 48 R37.htm IDEA: XBRL DOCUMENT v3.8.0.1
Income Taxes (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Income Tax Disclosure [Abstract]    
Effective income tax rate reconciliation, percent 12.60%  
Income taxes paid $ 42.9 $ 0.0