Quarterly report pursuant to Section 13 or 15(d)

EARNINGS PER SHARE - Additional Information (Detail)

EARNINGS PER SHARE - Additional Information (Detail)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Earnings Per Share [Abstract]    
Shares excluded from diluted earnings per share that may be issued upon the exercise of employee stock options because such effect would be antidilutive 0.2us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount 0.1us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount