STOCK-BASED COMPENSATION AND EMPLOYEE BENEFIT PLANS - PERFORMANCE STOCK AWARDS (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recordable Workplace Injury Rate (workers per year)		100
Expected Forfeiture Rate Employees	7.00%
Expected Forfeiture Rate, Executives and Directors	4.00%
Number of Performance Criteria	3
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]
Total Unrecognized Compensation Cost	$ 0
Performance Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected Forfeiture Rate Employees	7.00%
Expected Forfeiture Rate, Executives and Directors	4.00%
Performance Evaluation Stock-Based Compensation	2 years	2 years	2 years
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]
Number of Shares, Unvested at beginning of period	65,336
Number of Shares, Granted	114,453
Number of Shares, Forfeited	(69,928)
Number of Shares, Unvested at end of period	109,861	65,336
Shares, Unvested, Weighted Average Grant Date Fair Value, beginning of period (in dollars per share)	$ 66.96
Shares Granted, Weighted Average Grant Date Fair Value (in dollars per share)	$ 54.27
Shares Forfeited, Weighted Average Exercise Price (in dollars per share)	$ 66.12
Shares, Unvested, Weighted Average Grant Date Fair Value, end of period (in dollars per share)	$ 54.27	$ 66.96
Total Unrecognized Compensation Cost	0
Total Fair Value, Vested in period		$ 6,000,000	$ 16,800,000