INCOME TAXES (Details 3) (USD $)	12 Months Ended
	Dec. 31, 2014
INCOME TAXES
Expected increase in total unrecognized tax benefits due to income tax positions	$ 1,375,000
Portion of expected increase in total unrecognized tax benefits, expected to increase in next twelve months	214,000
Decrease in income tax expense	27,700,000
Increase in net income	27,700,000
Increase in net income related to prior periods	$ 15,600,000
Increase in basic earnings per share (in dollars per share)	$ 0.17
Increase in diluted earnings per share (in dollars per share)	$ 0.18