STOCK-BASED COMPENSATION - STOCK OPTION AWARDS (Details) (USD $) Share data in Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011 Years	Dec. 31, 2010 Years	Dec. 31, 2009	Dec. 31, 2011
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Expected Forfeiture Rate Employees	5.00%
Expected Forfeiture Rates, Executives Directors	4.00%
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Number of Stock Options Outstanding, beginning of period	221,148
Stock Options, Shares Forfeited	(5,000)
Stock Options, Shares Excerised	(71,450)
Number of Stock Options Outstanding and Vested, end of period	144,698	221,148
Stock Options, Weighted Average Exercise Price, Outstanding beginning of period	$ 14.16
Stock Options, Weighted Average Exercise Price, Forfeited	$ 6.49
Stock Options, Weighted Average Exercise Price, Exercised				$ 18.85
Stock Options, Weighted Average Exercise Price, Outstanding and Vested end of period	$ 12.12	$ 14.16
Stock Options, Outstanding, Weighted Average Remaining Contractual Term (in years), beginning of period	2.70
Stock Options, Outstanding, Weighted Average Remaining Contractual Term (in years), end of period	2.32	2.70
Stock Options, Outstanding, Aggregate Intrinsic Value, beginning of period	$ 6,165,000
Stock Options, Outstanding, Aggregate Intrinsic Value, end of period	7,468,000	6,165,000
Total Unrecognized Compensation Cost	0
Stock Options, Total Intrinsic Value	$ 2,100,000	$ 2,800,000	$ 1,200,000