SHAREHOLDERS' EQUITY (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended		1 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	May 31, 2014 ESPP
SHAREHOLDERS' EQUITY
Options exercised during period (in shares)	543,680	68,541	968,573	187,781
Net proceeds from options exercised during the period	$ 2.5	$ 0.2	$ 4.8	$ 0.6
Shareholders' equity
Shares sold					98,089
Purchase price of shares sold (in dollars per share)					$ 7.50
Proceeds from shares sold					$ 0.7