EARNINGS PER COMMON SHARE (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Numerator
Net income	$ 5,226	$ 2,344	$ 15,554	$ 5,678
Denominator
Basic weighted average common shares (in shares)	37,178,162	32,986,657	37,121,384	27,797,411
Dilutive stock options and restricted stock units (in shares)	286,952	62,964	154,629	94,279
Dilutive weighted average common shares (in shares)	37,465,114	33,049,621	37,276,013	27,891,690
Basic earnings per common share (USD per shares)	$ 0.14	$ 0.07	$ 0.42	$ 0.20
Dilutive earnings per common share (USD per shares)	$ 0.14	$ 0.07	$ 0.42	$ 0.20