Income Taxes (Details Textuals) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Income Taxes (Textuals) [Abstract]
Effective income tax rate			32.80%	62.40%
Provision for income taxes	$ 1,982,000	$ 13,891,000	$ 4,603,000	$ 6,060,000
Percentage of provision for income tax			41.30%	55.50%
Discrete items of income taxes			900,000
Discrete items of income taxes total				800,000
Charge associated with the enacted healthcare legislation				$ 1,600,000