EMPLOYEE BENEFIT PLANS (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013 item	Dec. 31, 2012
Defined Contribution Plan
Employer matching contribution (as a percent)	60.00%
Employee's contribution as percentage of salary matched by employer	10.00%
Number of subsidiaries in which employees were covered under the defined contribution plan		1
Plan expense	$ 3.0	$ 2.5	$ 2.0