Employee Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2016

Defined Benefit Pension Plans

Components of Net Periodic Defined Benefit Cost (Income)

Defined benefit plans – The components of net periodic defined benefit pension cost (income) are presented in the table below.

	Three months ended						Six months ended
	June 30,						June 30,
	2015			2016			2015			2016
	(In thousands)
Interest cost	$	635		$	601		$	1,204		$	1,193
Expected return on plan assets		(875	)		(736	)		(1,676	)		(1,471	)
Recognized actuarial losses		350			477			676			908
Total	$	110		$	342		$	204		$	630

OPEB

Components of Net Periodic Defined Benefit Cost (Income)

Postretirement benefits – The components of net periodic postretirement benefits other than pension (OPEB) income are presented in the table below.

	Three months ended						Six months ended
	June 30,						June 30,
	2015			2016			2015			2016
	(In thousands)
Interest cost	$	27		$	24		$	54		$	48
Amortization of prior service credit		(156	)		(136	)		(311	)		(271	)
Recognized actuarial gains		(26	)		(38	)		(51	)		(76	)
Total	$	(155	)	$	(150	)	$	(308	)	$	(299	)