INCOME TAXES Unrecognixed Tax Benefit (Details) (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized Tax Benefits Beginning Balance	$ 18,658,000	$ 16,636,000	$ 4,270,000
Increases for tax positions taken during a prior period	88,000	(428,000)	95,000
Increases for tax positions taken during the current period	4,402,000	2,872,000	12,843,000
Decreases resulting form the expiry of the statute of limitations			(595,000)
Settlements with tax authorities		(252,000)
Other	(18,000)	(170,000)	23,000
Unrecognized Tax Benefits Ending Balance	23,130,000	18,658,000	16,636,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	100,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	$ 300,000	$ 300,000