Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2011

Benefit Plans [Abstract]

Components of net periodic benefit cost

The following table provides the components of net periodic benefit cost for the pension, supplemental executive retirement and other postretirement benefit plans:

		Three Months Ended September 30,
	Pension and Supplemental							Other Postretirement
	Executive Retirement Plans							Benefits
		2011			2010				2011			2010
	(In thousands)
Service cost		$	2,229		$	2,133			$	273		$	281
Interest cost			4,025			3,885				338			295
Expected return on plan assets			(4,343	)		(3,626	)			(824	)		(722	)
Recognized net actuarial loss			1,002			1,481				157			191
Amortization of prior service cost			165			162				(1,554	)		(1,534	)
Net periodic benefit cost		$	3,078		$	4,035			$	(1,610	)	$	(1,489	)

		Nine Months Ended September 30,
	Pension and Supplemental							Other Postretirement
	Executive Retirement Plans							Benefits
		2011			2010				2011			2010
	(In thousands)
Service cost		$	6,688		$	6,399			$	818		$	844
Interest cost			12,074			11,652				1,013			887
Expected return on plan assets			(13,030	)		(10,877	)			(2,474	)		(2,168	)
Recognized net actuarial loss			3,008			4,443				473			573
Amortization of prior service cost			496			487				(4,663	)		(4,603	)
Net periodic benefit cost		$	9,236		$	12,104			$	(4,833	)	$	(4,467	)