Benefit Plans (Tables)

6 Months Ended

Jun. 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 June 30,
	Pension and Supplemental							Other Postretirement
		Executive Retirement Plans							Benefits
		2011			2010				2011			2010
	(In thousands)
Service cost		$	2,287		$	2,082			$	291		$	239
Interest cost			3,927			3,946				321			252
Expected return on plan assets			(4,493	)		(3,654	)			(827	)		(726	)
Recognized net actuarial loss			789			1,524				129			126
Amortization of prior service cost			169			185				(1,555	)		(1,534	)
Net periodic benefit cost		$	2,679		$	4,083			$	(1,641	)	$	(1,643	)

			Six Months Ended June 30,
	Pension and Supplemental								Other Postretirement
		Executive Retirement Plans								Benefits
			2011			2010				2011			2010
	(In thousands)
Service cost			$	4,459		$	4,266			$	545		$	563
Interest cost				8,049			7,767				675			592
Expected return on plan assets				(8,687	)		(7,251	)			(1,650	)		(1,446	)
Recognized net actuarial loss				2,006			2,962				316			382
Amortization of prior service cost				331			325				(3,109	)		(3,069	)
Net periodic benefit cost			$	6,158		$	8,069			$	(3,223	)	$	(2,978	)