Employee Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2017

Retirement Benefits [Abstract]

Components of net periodic benefit cost

Components of net pension expense were as follows:

	Three months ended June 30,					Six months ended June 30,
	2017			2016		2017			2016
	(In thousands)
Pension Benefits
Company-administered plans:
Service cost	$	3,017		3,005		$	6,266		6,405
Interest cost	21,426			27,093		42,915			49,332
Expected return on plan assets	(22,712		)	(22,667	)	(45,190		)	(45,752	)
Amortization of:
Net actuarial loss	8,077			8,600		16,527			16,565
Prior service cost	121			2,740		266			2,740
	9,929			18,771		20,784			29,290
Union-administered plans	2,621			2,406		5,123			4,728
Net pension expense	$	12,550		21,177		$	25,907		34,018
Company-administered plans:
U.S.	$	10,547		19,263		$	21,858		30,437
Non-U.S.	(618		)	(492	)	(1,074		)	(1,147	)
	9,929			18,771		20,784			29,290
Union-administered plans	2,621			2,406		5,123			4,728
Net pension expense	$	12,550		21,177		$	25,907		34,018