Quarterly report pursuant to Section 13 or 15(d)

INCOME TAXES - Additional Information (Detail)

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INCOME TAXES - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Income Tax Disclosure [Abstract]        
Gross unrecognized tax benefit balance, change within the next twelve months, lower limit $ 0.0   $ 0.0  
Gross unrecognized tax benefit balance, change within the next twelve months, upper limit $ 5.6   $ 5.6  
Effective income tax rate 30.80% 32.50% 31.40% 34.90%