Employee Benefit Plans

6 Months Ended

Jun. 30, 2012

Employee Benefit Plans [Abstract]

Employee Benefit Plans

12. Employee Benefit Plans

The following table details the components of pension benefit costs:

	Three Months Ended June 30,		Six Months Ended June 30,
	2012	2011	2012	2011
	(In thousands)
Service cost	$             7,310	$           3,926	$           14,906	$            8,245
Interest cost	4,092	3,996	8,072	8,127
Curtailments	324	-	324	-
Expected return on plan assets	(5,477)	(5,438)	(11,015)	(10,906)
Amortization of prior service cost (credit)	(37)	(142)	(73)	(95)
Amortization of other actuarial losses	4,200	2,234	7,771	4,374
Net benefit cost	$           10,412	$           4,576	$           19,985	$            9,745

The following table details the components of other postretirement benefit costs (credits):

	Three Months Ended June 30,		Six Months Ended June 30,
	2012	2011	2012	2011
	(In thousands)
Service cost	$                539	$              518	$            1,088	$              923
Interest cost	520	529	1,011	1,027
Curtailments	(1,837)	-	(1,837)	-
Amortization of prior service credits	(2,876)	(546)	(5,871)	(1,137)
Amortization of other actuarial gains	(171)	(952)	(261)	(1,550)
Net benefitcost (credit)	$             (3,825)	$             (450)	$           (5,870)	$             (737)