EQUITY (Details) (USD $)	12 Months Ended			0 Months Ended	12 Months Ended
	Dec. 31, 2012 plan	Dec. 31, 2011	Dec. 31, 2010	Jun. 01, 2012 2012 Program	Dec. 31, 2012 2012 Program	Dec. 31, 2011 2010 Program
Share Repurchases
Authorized amount under stock repurchase program				$ 35,000,000
Number of plans to be utilized with brokers or banks for pre-authorized purchases	1
Number of shares of common stock repurchased under stock repurchase program					283,980	745,414
Value of common stock repurchased under stock repurchase program	3,299,000	9,958,000	43,212,000		3,300,000	10,000,000
Weighted average cost of common stock repurchased (in dollars per share)					$ 11.62	$ 13.37
Number of common stock repurchased to satisfy employee tax withholding obligations (in Shares)	217,713	66,290	76,087
Value of common stock repurchased to satisfy employee tax withholding obligations	2,689,000	900,000	948,000
Dividend
Cash dividend declared on outstanding shares of common stock (in dollars per share)	$ 0.385	$ 0.205	$ 0.07
Cash dividend paid on outstanding shares of common stock (in dollars per share)	$ 0.345	$ 0.155
Dividends payable	3,231,000	1,786,000
Total dividends declared	13,800,000	7,300,000
Total dividend paid	$ 12,386,000	$ 5,514,000	$ 2,632,000