Federal and State Income Taxes (Tables)

9 Months Ended

Sep. 30, 2012

Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]

Reconciliation of income (loss) to income tax expense

The reconciliations of income (loss) attributable to continuing operations at the U.S. federal statutory tax rate to income tax expense are as follows (in thousands):
	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2012			2011			2012			2011
Amount:
Federal statutory tax	$	46,771		$	44,963		$	145,234		$	120,062
Tax exempt revenue	(1,398		)	(1,395		)	(3,996		)	(4,089		)
Effect of state income taxes, net of federal benefit	3,640			2,593			10,210			7,969
Utilization of tax credits	(718		)	(602		)	(3,282		)	(1,695		)
Bank-owned life insurance	(931		)	(950		)	(2,886		)	(2,914		)
Reduction of tax accrual	(950		)	(1,764		)	(950		)	(1,764		)
Other, net	(636		)	161			117			3,546
Total	$	45,778		$	43,006		$	144,447		$	121,115

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2012		2011		2012		2011
Percent of pretax income:
Federal statutory tax	35	%	35	%	35	%	35	%
Tax exempt revenue	(1	)	(1	)	(1	)	(1	)
Effect of state income taxes, net of federal benefit	3		2		2		2
Utilization of tax credits	(1	)	(1	)	(1	)	—
Bank-owned life insurance	(1	)	(1	)	(1	)	(1	)
Reduction of tax accrual	(1	)	(1	)	—		(1	)
Other, net	—		—		1		1
Total	34	%	33	%	35	%	35	%