STOCK-BASED COMPENSATION STOCK-BASED COMPENSATION FOR THE YEAR (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Apr. 26, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved for issuance to participants	2,746,145			2,500,000
Stock-based compensation	$ 2,574	$ 3,221	$ 1,724
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense	105	285	132
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	704	515	158
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized	445	1,037
Weighted average service period	1 year 0 months 28 days	1 year 10 months 20 days
Restricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	1,275	2,411	1,566
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized	1,806	2,426
Weighted average service period	1 year 4 months 16 days	1 year 5 months 15 days
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	595	295	0
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized	$ 182	$ 387
Weighted average service period	1 year 6 months 7 days	2 years 2 months 8 days