INCOME TAXES (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011
Income Tax [Abstract]
Income tax expense (benefit)	$ 3,500,000	$ 2,300,000	$ 1,100,000	$ 3,000,000
Effective income tax rate (in hundredths)			34.80%	41.70%
Effective income tax rate (in hundredths), excluding impairment of goodwill charge			40.80%
Unrecognized tax benefits that would impact effective tax rate	300,000		300,000
Unrecognized tax benefits, income tax penalties accrued	300,000		300,000		200,000
2012	4,500,000		4,500,000
2013	4,700,000		4,700,000
2014	4,700,000		4,700,000
2015	5,000,000		5,000,000
2016	5,300,000		5,300,000
2017 and thereafter	43,400,000		43,400,000
Total	67,600,000		67,600,000
Reclass from deferred to current taxes	3,479,000		3,479,000		3,383,000
Reclass from deferred to current tax liability	1,000,000		1,000,000
Interest expense on income taxes not accrued	$ 500,000		$ 500,000