INCOME TAXES - Narrative (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Income Tax [Line Items]
Reported tax rate	44.50%	23.70%
Income tax reconciliation, settlements with tax authority	$ 0.6
Income tax reconciliation, tax credits, research		0.9
Income tax expense, tax benefit due to release of tax contingency reserves		0.4
Income tax expense, tax benefit due to change in local tax law		$ 0.4
Minimum
Income Tax [Line Items]
Effective tax rate estimate	23.00%
Maximum
Income Tax [Line Items]
Effective tax rate estimate	24.00%