Income taxes (Tables)

9 Months Ended

Sep. 30, 2012

Schedule of Income Taxes

Income taxes:

	Nine months ended September 30,
	2011		2012
	(In thousands)
Expected income tax expense, at statutory rate	$	14,571	$	11,048
U.S. state income tax expense, net		2,436		1,430
Other, net		26		(479	)
Income tax expense	$	17,033	$	11,999