PENSION AND OTHER POSTRETIREMENT BENEFITS 11 (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan, Cost Recognized	$ 1.2	$ 1.0	$ 0.9
Employee Qualifying For Defined Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan, Maximum Annual Contribution Per Employee, Percent	50.00%
Defined Contribution Plan, Employer Matching Contribution, Percent	6.00%
Employee Not Qualifying For Defined Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan, Maximum Annual Contribution Per Employee, Percent	50.00%
Defined Contribution Plan, Employer Matching Contribution, Percent	8.00%
Year End Contribution for Employees With Less Then Ten Years of Service	1,500,000
Years of Service Threshold to Determine Year End Contribution	10 years
Year End Contribution for Employees With More Then Ten Years of Service	2,000,000