Pension Plan (Tables)

3 Months Ended

Mar. 31, 2012

Pension Plan [Abstract]

Components Of Net Periodic Pension Expense Related To The Qualified And Non-Qualified Plans

	Three Months Ended March 31,
	2012			2011
	(in thousands)
Service cost	$	1,964		$	1,563
Interest cost		1,598			1,524
Expected return on plan assets		(2,233	)		(1,665	)
Amortization of prior service cost		177			160
Amortization of actuarial loss		582			343
Total net periodic pension expense		2,088			1,925
Other changes in plan assets and benefit obligations recognized in other comprehensive income:
Amortization of prior service cost		(177	)		(160	)
Amortization of actuarial loss		(582	)		(343	)
		(759	)		(503	)
Total amount recognized in net periodic benefit cost and other comprehensive income (before tax)	$	1,329		$	1,422