XML 54 R44.htm IDEA: XBRL DOCUMENT v3.7.0.1
INCOME TAXES INCOME TAXES (Detail) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Income Tax Disclosure [Abstract]        
Effective tax rate percentage 38.50% 45.90% 55.00% 88.90%
Combined additional income tax expense from identification of nondeductible facilitative transaction costs and adjustments   $ 0.4   $ 1.4
Percentage increase in income tax expense from identification of nondeductible facilitative transaction costs and adjustments   11.20% 49.10%  
Excess tax benefit $ 0.2   $ 0.9  
Increase in effective tax rate percentage 6.10%   22.60%