Taxes on Income

6 Months Ended

Jun. 30, 2011

Notes to Financial Statements [Abstract]

Taxes on Income

9. Income Taxes

The following table summarizes the Company's income taxes for the periods presented.

	Three Months Ended June 30,				Six Months Ended June 30,
	2011		2010		2011		2010
	(In thousands)
Income tax expense	$	22,736	$	22,148	$	43,437	$	48,733
Effective tax rate		36%		40%		34%		42%

The EITR for the six-month period ended June 30, 2011 is lower than the combined federal and state income tax statutory rates primarily due to state investment tax credits, whereas in 2010 the EITR was higher than the combined federal and state income tax statutory rates primarily due to the elimination of the Medicare Part D tax subsidy in the Patient Protection and Affordable Care Act legislation signed into law in March 2010.