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INCOME TAXES - Additional Information (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 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 | $ 4.7 |  | $ 4.7 |
Effective income tax rate | 29.00% | 37.20% | 31.70% | 36.10%
Discrete Income Tax Benefit | $ 8.6 |  |  |
Decrease in Effective Income Tax Rate, Percent | 5.40% |  | 2.90% |

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- Definition Amount of (increase) decrease reasonably possible in the estimated lower bound of the unrecognized tax benefit for a tax position taken or expected to be taken. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 + Details
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